/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-67.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 11:09:15,798 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 11:09:15,860 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 11:09:15,864 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 11:09:15,865 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 11:09:15,891 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 11:09:15,892 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 11:09:15,892 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 11:09:15,893 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 11:09:15,896 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 11:09:15,896 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 11:09:15,896 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 11:09:15,897 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 11:09:15,898 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 11:09:15,898 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 11:09:15,898 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 11:09:15,898 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 11:09:15,899 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 11:09:15,899 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 11:09:15,899 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 11:09:15,899 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 11:09:15,899 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 11:09:15,899 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 11:09:15,900 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 11:09:15,900 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 11:09:15,900 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 11:09:15,900 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 11:09:15,900 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 11:09:15,900 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 11:09:15,900 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 11:09:15,901 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 11:09:15,901 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 11:09:15,901 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 11:09:15,901 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 11:09:15,901 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 11:09:15,902 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 11:09:15,902 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 11:09:15,902 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 11:09:15,902 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 11:09:15,902 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 11:09:15,902 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 11:09:15,902 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 11:09:15,902 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 11:09:15,902 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 11:09:15,903 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 11:09:15,903 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 11:09:15,903 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 11:09:16,092 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 11:09:16,112 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 11:09:16,114 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 11:09:16,115 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 11:09:16,115 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 11:09:16,116 INFO  L431   ainManager$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-67.i
[2023-12-23 11:09:17,233 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 11:09:17,405 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 11:09:17,406 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-67.i
[2023-12-23 11:09:17,419 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/768dd221f/5aa954b6d2b94e4f91036e9cd12b69f2/FLAG4456f49f7
[2023-12-23 11:09:17,432 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/768dd221f/5aa954b6d2b94e4f91036e9cd12b69f2
[2023-12-23 11:09:17,434 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 11:09:17,435 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 11:09:17,436 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 11:09:17,436 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 11:09:17,439 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 11:09:17,439 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,441 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da3b352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17, skipping insertion in model container
[2023-12-23 11:09:17,441 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,476 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 11:09:17,605 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-67.i[919,932]
[2023-12-23 11:09:17,681 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 11:09:17,692 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 11:09:17,705 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-67.i[919,932]
[2023-12-23 11:09:17,729 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 11:09:17,742 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 11:09:17,743 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17 WrapperNode
[2023-12-23 11:09:17,743 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 11:09:17,744 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 11:09:17,744 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 11:09:17,744 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 11:09:17,749 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,758 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,780 INFO  L138                Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 208
[2023-12-23 11:09:17,780 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 11:09:17,781 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 11:09:17,781 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 11:09:17,781 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 11:09:17,789 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,789 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,792 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,802 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 11:09:17,803 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,803 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,810 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,813 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,815 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,816 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,819 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 11:09:17,820 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 11:09:17,820 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 11:09:17,820 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 11:09:17,821 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17" (1/1) ...
[2023-12-23 11:09:17,828 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 11:09:17,851 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 11:09:17,861 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 11:09:17,876 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 11:09:17,886 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 11:09:17,887 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 11:09:17,887 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 11:09:17,887 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 11:09:17,887 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 11:09:17,887 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 11:09:17,948 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 11:09:17,949 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 11:09:19,667 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 11:09:19,734 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 11:09:19,734 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 11:09:19,734 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:09:19 BoogieIcfgContainer
[2023-12-23 11:09:19,734 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 11:09:19,736 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 11:09:19,737 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 11:09:19,739 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 11:09:19,739 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:09:17" (1/3) ...
[2023-12-23 11:09:19,740 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed362df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:09:19, skipping insertion in model container
[2023-12-23 11:09:19,741 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:09:17" (2/3) ...
[2023-12-23 11:09:19,741 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed362df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:09:19, skipping insertion in model container
[2023-12-23 11:09:19,741 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:09:19" (3/3) ...
[2023-12-23 11:09:19,742 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-67.i
[2023-12-23 11:09:19,755 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 11:09:19,756 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 11:09:19,793 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 11:09:19,798 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;@18ab2b5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 11:09:19,798 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 11:09:19,801 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 87 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 55 states have internal predecessors, (80), 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 11:09:19,820 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 187
[2023-12-23 11:09:19,821 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:09:19,821 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]
[2023-12-23 11:09:19,822 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:09:19,826 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:09:19,826 INFO  L85        PathProgramCache]: Analyzing trace with hash 1389804773, now seen corresponding path program 1 times
[2023-12-23 11:09:19,836 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:09:19,836 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038619294]
[2023-12-23 11:09:19,836 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:09:19,837 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 11:09:19,837 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:09:19,839 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 11:09:19,846 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 11:09:20,178 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:09:20,198 INFO  L262         TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 11:09:20,207 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:09:20,245 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 850 proven. 0 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked.
[2023-12-23 11:09:20,246 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 11:09:20,246 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:09:20,246 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038619294]
[2023-12-23 11:09:20,247 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038619294] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 11:09:20,247 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 11:09:20,247 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 11:09:20,248 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340822876]
[2023-12-23 11:09:20,249 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 11:09:20,254 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 11:09:20,254 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:09:20,279 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 11:09:20,280 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 11:09:20,282 INFO  L87              Difference]: Start difference. First operand  has 87 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 55 states have internal predecessors, (80), 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 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 11:09:20,871 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:09:20,872 INFO  L93              Difference]: Finished difference Result 171 states and 308 transitions.
[2023-12-23 11:09:20,894 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 11:09:20,896 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 186
[2023-12-23 11:09:20,896 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:09:20,901 INFO  L225             Difference]: With dead ends: 171
[2023-12-23 11:09:20,902 INFO  L226             Difference]: Without dead ends: 85
[2023-12-23 11:09:20,904 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 185 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 11:09:20,907 INFO  L413           NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-23 11:09:20,907 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-23 11:09:20,918 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85 states.
[2023-12-23 11:09:20,946 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85.
[2023-12-23 11:09:20,948 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 85 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 53 states have internal predecessors, (75), 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 11:09:20,956 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 135 transitions.
[2023-12-23 11:09:20,957 INFO  L78                 Accepts]: Start accepts. Automaton has 85 states and 135 transitions. Word has length 186
[2023-12-23 11:09:20,957 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:09:20,958 INFO  L495      AbstractCegarLoop]: Abstraction has 85 states and 135 transitions.
[2023-12-23 11:09:20,958 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 11:09:20,959 INFO  L276                IsEmpty]: Start isEmpty. Operand 85 states and 135 transitions.
[2023-12-23 11:09:20,967 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 187
[2023-12-23 11:09:20,967 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:09:20,968 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]
[2023-12-23 11:09:21,006 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 11:09:21,177 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 11:09:21,177 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:09:21,178 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:09:21,178 INFO  L85        PathProgramCache]: Analyzing trace with hash 1652198489, now seen corresponding path program 1 times
[2023-12-23 11:09:21,179 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:09:21,179 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928718830]
[2023-12-23 11:09:21,179 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:09:21,179 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 11:09:21,179 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:09:21,181 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 11:09:21,183 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 11:09:21,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:09:21,597 INFO  L262         TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 11:09:21,603 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:09:22,123 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked.
[2023-12-23 11:09:22,123 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 11:09:22,123 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:09:22,123 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928718830]
[2023-12-23 11:09:22,124 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928718830] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 11:09:22,124 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 11:09:22,124 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 11:09:22,124 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198698427]
[2023-12-23 11:09:22,124 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 11:09:22,126 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 11:09:22,126 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:09:22,126 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 11:09:22,127 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 11:09:22,127 INFO  L87              Difference]: Start difference. First operand 85 states and 135 transitions. Second operand  has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30)
[2023-12-23 11:09:23,939 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:09:23,939 INFO  L93              Difference]: Finished difference Result 254 states and 404 transitions.
[2023-12-23 11:09:23,961 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 11:09:23,961 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 186
[2023-12-23 11:09:23,962 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:09:23,963 INFO  L225             Difference]: With dead ends: 254
[2023-12-23 11:09:23,964 INFO  L226             Difference]: Without dead ends: 170
[2023-12-23 11:09:23,965 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 11:09:23,965 INFO  L413           NwaCegarLoop]: 129 mSDtfsCounter, 90 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2023-12-23 11:09:23,966 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 383 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2023-12-23 11:09:23,966 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 170 states.
[2023-12-23 11:09:23,985 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 144.
[2023-12-23 11:09:23,985 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 144 states, 81 states have (on average 1.308641975308642) internal successors, (106), 81 states have internal predecessors, (106), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60)
[2023-12-23 11:09:23,987 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 226 transitions.
[2023-12-23 11:09:23,987 INFO  L78                 Accepts]: Start accepts. Automaton has 144 states and 226 transitions. Word has length 186
[2023-12-23 11:09:23,987 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:09:23,987 INFO  L495      AbstractCegarLoop]: Abstraction has 144 states and 226 transitions.
[2023-12-23 11:09:23,988 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30)
[2023-12-23 11:09:23,988 INFO  L276                IsEmpty]: Start isEmpty. Operand 144 states and 226 transitions.
[2023-12-23 11:09:23,989 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 189
[2023-12-23 11:09:23,989 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:09:23,989 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]
[2023-12-23 11:09:24,001 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-23 11:09:24,201 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 11:09:24,201 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:09:24,202 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:09:24,202 INFO  L85        PathProgramCache]: Analyzing trace with hash 1744256395, now seen corresponding path program 1 times
[2023-12-23 11:09:24,203 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:09:24,203 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885567656]
[2023-12-23 11:09:24,203 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:09:24,203 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 11:09:24,203 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:09:24,204 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 11:09:24,205 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 11:09:24,521 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:09:24,543 INFO  L262         TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 11:09:24,548 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:09:24,989 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 249 proven. 81 refuted. 0 times theorem prover too weak. 1410 trivial. 0 not checked.
[2023-12-23 11:09:24,989 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:09:25,292 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 6 proven. 81 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked.
[2023-12-23 11:09:25,292 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:09:25,292 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885567656]
[2023-12-23 11:09:25,292 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [885567656] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 11:09:25,292 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 11:09:25,292 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 11:09:25,292 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007379080]
[2023-12-23 11:09:25,293 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 11:09:25,293 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 11:09:25,293 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:09:25,294 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 11:09:25,294 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 11:09:25,294 INFO  L87              Difference]: Start difference. First operand 144 states and 226 transitions. Second operand  has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (57), 2 states have call predecessors, (57), 4 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2023-12-23 11:09:26,722 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:09:26,723 INFO  L93              Difference]: Finished difference Result 238 states and 366 transitions.
[2023-12-23 11:09:26,747 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-23 11:09:26,748 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (57), 2 states have call predecessors, (57), 4 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 188
[2023-12-23 11:09:26,748 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:09:26,750 INFO  L225             Difference]: With dead ends: 238
[2023-12-23 11:09:26,750 INFO  L226             Difference]: Without dead ends: 154
[2023-12-23 11:09:26,752 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 368 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 11:09:26,754 INFO  L413           NwaCegarLoop]: 92 mSDtfsCounter, 95 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2023-12-23 11:09:26,756 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 212 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2023-12-23 11:09:26,758 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 154 states.
[2023-12-23 11:09:26,782 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 150.
[2023-12-23 11:09:26,783 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 150 states, 85 states have (on average 1.2352941176470589) internal successors, (105), 85 states have internal predecessors, (105), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60)
[2023-12-23 11:09:26,786 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 225 transitions.
[2023-12-23 11:09:26,786 INFO  L78                 Accepts]: Start accepts. Automaton has 150 states and 225 transitions. Word has length 188
[2023-12-23 11:09:26,787 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:09:26,787 INFO  L495      AbstractCegarLoop]: Abstraction has 150 states and 225 transitions.
[2023-12-23 11:09:26,787 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (57), 2 states have call predecessors, (57), 4 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2023-12-23 11:09:26,788 INFO  L276                IsEmpty]: Start isEmpty. Operand 150 states and 225 transitions.
[2023-12-23 11:09:26,791 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 190
[2023-12-23 11:09:26,791 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:09:26,791 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 11:09:26,809 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 11:09:27,008 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 11:09:27,009 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:09:27,010 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:09:27,010 INFO  L85        PathProgramCache]: Analyzing trace with hash -1237627059, now seen corresponding path program 1 times
[2023-12-23 11:09:27,010 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:09:27,011 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892515226]
[2023-12-23 11:09:27,011 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:09:27,011 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 11:09:27,011 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:09:27,013 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 11:09:27,021 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 11:09:27,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:09:27,347 INFO  L262         TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 11:09:27,351 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:09:27,892 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked.
[2023-12-23 11:09:27,892 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 11:09:27,893 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:09:27,893 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892515226]
[2023-12-23 11:09:27,893 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [892515226] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 11:09:27,893 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 11:09:27,893 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 11:09:27,893 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941317113]
[2023-12-23 11:09:27,893 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 11:09:27,894 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 11:09:27,894 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:09:27,894 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 11:09:27,894 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-23 11:09:27,895 INFO  L87              Difference]: Start difference. First operand 150 states and 225 transitions. Second operand  has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30)
[2023-12-23 11:09:30,319 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:09:30,319 INFO  L93              Difference]: Finished difference Result 327 states and 494 transitions.
[2023-12-23 11:09:30,320 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-23 11:09:30,320 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 189
[2023-12-23 11:09:30,321 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:09:30,322 INFO  L225             Difference]: With dead ends: 327
[2023-12-23 11:09:30,322 INFO  L226             Difference]: Without dead ends: 241
[2023-12-23 11:09:30,323 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 11:09:30,324 INFO  L413           NwaCegarLoop]: 122 mSDtfsCounter, 225 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2023-12-23 11:09:30,324 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 479 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2023-12-23 11:09:30,327 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 241 states.
[2023-12-23 11:09:30,344 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 158.
[2023-12-23 11:09:30,345 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 158 states, 93 states have (on average 1.2580645161290323) internal successors, (117), 93 states have internal predecessors, (117), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60)
[2023-12-23 11:09:30,346 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 237 transitions.
[2023-12-23 11:09:30,346 INFO  L78                 Accepts]: Start accepts. Automaton has 158 states and 237 transitions. Word has length 189
[2023-12-23 11:09:30,346 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:09:30,347 INFO  L495      AbstractCegarLoop]: Abstraction has 158 states and 237 transitions.
[2023-12-23 11:09:30,347 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30)
[2023-12-23 11:09:30,347 INFO  L276                IsEmpty]: Start isEmpty. Operand 158 states and 237 transitions.
[2023-12-23 11:09:30,348 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2023-12-23 11:09:30,348 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:09:30,348 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, 1]
[2023-12-23 11:09:30,362 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-23 11:09:30,560 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 11:09:30,561 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:09:30,561 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:09:30,561 INFO  L85        PathProgramCache]: Analyzing trace with hash -1269032072, now seen corresponding path program 1 times
[2023-12-23 11:09:30,562 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:09:30,562 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139731843]
[2023-12-23 11:09:30,562 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:09:30,562 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 11:09:30,562 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:09:30,563 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 11:09:30,586 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 11:09:30,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:09:30,885 INFO  L262         TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 11:09:30,888 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:09:31,268 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked.
[2023-12-23 11:09:31,269 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 11:09:31,269 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:09:31,269 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139731843]
[2023-12-23 11:09:31,269 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139731843] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 11:09:31,269 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 11:09:31,269 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 11:09:31,269 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891519233]
[2023-12-23 11:09:31,269 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 11:09:31,270 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 11:09:31,270 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:09:31,270 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 11:09:31,270 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 11:09:31,270 INFO  L87              Difference]: Start difference. First operand 158 states and 237 transitions. Second operand  has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30)
[2023-12-23 11:09:32,285 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:09:32,285 INFO  L93              Difference]: Finished difference Result 342 states and 515 transitions.
[2023-12-23 11:09:32,286 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 11:09:32,286 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 190
[2023-12-23 11:09:32,287 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:09:32,288 INFO  L225             Difference]: With dead ends: 342
[2023-12-23 11:09:32,288 INFO  L226             Difference]: Without dead ends: 256
[2023-12-23 11:09:32,289 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 11:09:32,289 INFO  L413           NwaCegarLoop]: 121 mSDtfsCounter, 31 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2023-12-23 11:09:32,290 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 239 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2023-12-23 11:09:32,290 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 256 states.
[2023-12-23 11:09:32,307 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 254.
[2023-12-23 11:09:32,308 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 254 states, 157 states have (on average 1.286624203821656) internal successors, (202), 157 states have internal predecessors, (202), 90 states have call successors, (90), 6 states have call predecessors, (90), 6 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90)
[2023-12-23 11:09:32,309 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 382 transitions.
[2023-12-23 11:09:32,309 INFO  L78                 Accepts]: Start accepts. Automaton has 254 states and 382 transitions. Word has length 190
[2023-12-23 11:09:32,309 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:09:32,310 INFO  L495      AbstractCegarLoop]: Abstraction has 254 states and 382 transitions.
[2023-12-23 11:09:32,310 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30)
[2023-12-23 11:09:32,310 INFO  L276                IsEmpty]: Start isEmpty. Operand 254 states and 382 transitions.
[2023-12-23 11:09:32,311 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2023-12-23 11:09:32,311 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:09:32,311 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, 1]
[2023-12-23 11:09:32,340 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 (6)] Forceful destruction successful, exit code 0
[2023-12-23 11:09:32,523 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 11:09:32,526 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:09:32,526 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:09:32,526 INFO  L85        PathProgramCache]: Analyzing trace with hash -459685446, now seen corresponding path program 1 times
[2023-12-23 11:09:32,527 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:09:32,527 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941887790]
[2023-12-23 11:09:32,527 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:09:32,527 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 11:09:32,527 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:09:32,528 INFO  L229       MonitoredProcess]: Starting monitored process 7 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 11:09:32,547 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 (7)] Waiting until timeout for monitored process
[2023-12-23 11:09:32,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:09:32,895 INFO  L262         TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-23 11:09:32,900 INFO  L285         TraceCheckSpWp]: Computing forward predicates...