/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-83.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:21:28,663 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:21:28,750 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 01:21:28,755 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:21:28,755 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:21:28,788 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:21:28,789 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:21:28,789 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:21:28,790 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:21:28,791 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:21:28,791 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:21:28,792 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:21:28,792 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:21:28,793 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:21:28,793 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:21:28,796 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:21:28,796 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:21:28,797 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:21:28,797 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:21:28,797 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:21:28,798 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:21:28,802 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:21:28,802 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:21:28,802 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:21:28,803 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:21:28,803 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:21:28,803 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:21:28,803 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:21:28,804 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:21:28,804 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:21:28,804 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:21:28,805 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:21:28,805 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:21:28,805 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:21:28,805 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:21:28,806 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:21:28,806 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:21:28,807 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:21:28,807 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:21:28,807 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:21:28,808 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:21:28,809 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:21:28,809 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:21:28,809 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:21:28,810 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:21:29,066 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:21:29,095 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:21:29,098 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:21:29,100 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:21:29,100 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:21:29,101 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-83.i
[2024-11-03 01:21:30,693 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:21:30,935 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:21:30,935 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-83.i
[2024-11-03 01:21:30,952 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c84fc5e/4a73c43c8e124082a9ea22e710fbe9c1/FLAG97f82b94d
[2024-11-03 01:21:31,253 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c84fc5e/4a73c43c8e124082a9ea22e710fbe9c1
[2024-11-03 01:21:31,256 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:21:31,258 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:21:31,259 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:21:31,260 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:21:31,267 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:21:31,268 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:31,269 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f56ddc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31, skipping insertion in model container
[2024-11-03 01:21:31,269 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:31,315 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:21:31,510 WARN  L250   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_operatoramount_amount250_file-83.i[916,929]
[2024-11-03 01:21:31,669 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:21:31,688 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:21:31,700 WARN  L250   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_operatoramount_amount250_file-83.i[916,929]
[2024-11-03 01:21:31,775 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:21:31,802 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:21:31,805 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31 WrapperNode
[2024-11-03 01:21:31,805 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:21:31,807 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:21:31,807 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:21:31,807 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:21:31,814 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:31,857 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:31,898 INFO  L138                Inliner]: procedures = 27, calls = 69, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 348
[2024-11-03 01:21:31,899 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:21:31,899 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:21:31,899 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:21:31,900 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:21:31,912 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:31,912 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:31,920 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:31,979 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].
[2024-11-03 01:21:31,980 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:31,980 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:32,005 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:32,010 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:32,015 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:32,024 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:32,066 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:21:32,075 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:21:32,075 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:21:32,075 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:21:32,078 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31" (1/1) ...
[2024-11-03 01:21:32,087 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:21:32,097 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:21:32,111 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)
[2024-11-03 01:21:32,118 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
[2024-11-03 01:21:32,139 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:21:32,139 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:21:32,139 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:21:32,139 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:21:32,139 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:21:32,139 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:21:32,239 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:21:32,242 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:21:44,037 INFO  L?                        ?]: Removed 28 outVars from TransFormulas that were not future-live.
[2024-11-03 01:21:44,038 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:21:44,062 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:21:44,063 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:21:44,063 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:21:44 BoogieIcfgContainer
[2024-11-03 01:21:44,063 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:21:44,069 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:21:44,069 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:21:44,073 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:21:44,074 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:21:31" (1/3) ...
[2024-11-03 01:21:44,075 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262e0227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:21:44, skipping insertion in model container
[2024-11-03 01:21:44,075 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:21:31" (2/3) ...
[2024-11-03 01:21:44,076 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262e0227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:21:44, skipping insertion in model container
[2024-11-03 01:21:44,076 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:21:44" (3/3) ...
[2024-11-03 01:21:44,079 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-83.i
[2024-11-03 01:21:44,094 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:21:44,095 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:21:44,178 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:21:44,185 INFO  L333      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, 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;@6170d222, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:21:44,186 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:21:44,192 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 151 states, 92 states have (on average 1.4782608695652173) internal successors, (136), 93 states have internal predecessors, (136), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56)
[2024-11-03 01:21:44,209 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 345
[2024-11-03 01:21:44,209 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:21:44,210 INFO  L215           NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:21:44,211 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:21:44,217 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:21:44,218 INFO  L85        PathProgramCache]: Analyzing trace with hash -1184284132, now seen corresponding path program 1 times
[2024-11-03 01:21:44,228 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:21:44,228 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1018401541]
[2024-11-03 01:21:44,229 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:21:44,231 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:21:44,231 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:21:44,233 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:21:44,234 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 01:21:44,896 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:21:44,918 INFO  L255         TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:21:44,931 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:21:45,025 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:21:45,026 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:21:46,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:21:46,970 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:21:46,970 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1018401541]
[2024-11-03 01:21:46,971 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1018401541] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:21:46,971 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:21:46,971 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:21:46,973 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473309544]
[2024-11-03 01:21:46,973 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:21:46,979 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:21:46,979 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:21:47,000 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:21:47,001 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:21:47,004 INFO  L87              Difference]: Start difference. First operand  has 151 states, 92 states have (on average 1.4782608695652173) internal successors, (136), 93 states have internal predecessors, (136), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand  has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:21:47,048 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:21:47,048 INFO  L93              Difference]: Finished difference Result 295 states and 546 transitions.
[2024-11-03 01:21:47,049 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:21:47,050 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 344
[2024-11-03 01:21:47,051 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:21:47,059 INFO  L225             Difference]: With dead ends: 295
[2024-11-03 01:21:47,059 INFO  L226             Difference]: Without dead ends: 147
[2024-11-03 01:21:47,064 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:21:47,067 INFO  L432           NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 01:21:47,068 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:21:47,085 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 147 states.
[2024-11-03 01:21:47,124 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147.
[2024-11-03 01:21:47,126 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 147 states, 89 states have (on average 1.4382022471910112) internal successors, (128), 89 states have internal predecessors, (128), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56)
[2024-11-03 01:21:47,128 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 240 transitions.
[2024-11-03 01:21:47,130 INFO  L78                 Accepts]: Start accepts. Automaton has 147 states and 240 transitions. Word has length 344
[2024-11-03 01:21:47,130 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:21:47,131 INFO  L471      AbstractCegarLoop]: Abstraction has 147 states and 240 transitions.
[2024-11-03 01:21:47,131 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:21:47,131 INFO  L276                IsEmpty]: Start isEmpty. Operand 147 states and 240 transitions.
[2024-11-03 01:21:47,140 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 345
[2024-11-03 01:21:47,140 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:21:47,140 INFO  L215           NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:21:47,152 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 01:21:47,341 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:21:47,342 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:21:47,342 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:21:47,343 INFO  L85        PathProgramCache]: Analyzing trace with hash -1246899162, now seen corresponding path program 1 times
[2024-11-03 01:21:47,343 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:21:47,343 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24690609]
[2024-11-03 01:21:47,343 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:21:47,343 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:21:47,344 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:21:47,345 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:21:47,346 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 01:21:47,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:21:47,958 INFO  L255         TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:21:47,964 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:21:48,134 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:21:48,135 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:21:50,233 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:21:50,233 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:21:50,234 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24690609]
[2024-11-03 01:21:50,234 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [24690609] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:21:50,234 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:21:50,234 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:21:50,234 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337833638]
[2024-11-03 01:21:50,235 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:21:50,237 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:21:50,237 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:21:50,238 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:21:50,238 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:21:50,238 INFO  L87              Difference]: Start difference. First operand 147 states and 240 transitions. Second operand  has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:21:54,633 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:21:58,640 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:21:58,651 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:21:58,651 INFO  L93              Difference]: Finished difference Result 409 states and 670 transitions.
[2024-11-03 01:21:58,722 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:21:58,723 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 344
[2024-11-03 01:21:58,724 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:21:58,728 INFO  L225             Difference]: With dead ends: 409
[2024-11-03 01:21:58,728 INFO  L226             Difference]: Without dead ends: 265
[2024-11-03 01:21:58,730 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 685 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:21:58,731 INFO  L432           NwaCegarLoop]: 237 mSDtfsCounter, 186 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time
[2024-11-03 01:21:58,732 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 463 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time]
[2024-11-03 01:21:58,733 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 265 states.
[2024-11-03 01:21:58,766 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 262.
[2024-11-03 01:21:58,767 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 262 states, 161 states have (on average 1.4472049689440993) internal successors, (233), 162 states have internal predecessors, (233), 98 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 97 states have call predecessors, (98), 98 states have call successors, (98)
[2024-11-03 01:21:58,769 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 429 transitions.
[2024-11-03 01:21:58,770 INFO  L78                 Accepts]: Start accepts. Automaton has 262 states and 429 transitions. Word has length 344
[2024-11-03 01:21:58,771 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:21:58,771 INFO  L471      AbstractCegarLoop]: Abstraction has 262 states and 429 transitions.
[2024-11-03 01:21:58,772 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:21:58,772 INFO  L276                IsEmpty]: Start isEmpty. Operand 262 states and 429 transitions.
[2024-11-03 01:21:58,774 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 345
[2024-11-03 01:21:58,775 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:21:58,775 INFO  L215           NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:21:58,784 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0
[2024-11-03 01:21:58,975 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:21:58,976 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:21:58,977 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:21:58,977 INFO  L85        PathProgramCache]: Analyzing trace with hash -2064547612, now seen corresponding path program 1 times
[2024-11-03 01:21:58,978 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:21:58,979 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98172936]
[2024-11-03 01:21:58,979 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:21:58,979 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:21:58,979 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:21:58,982 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:21:58,983 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 01:21:59,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:21:59,644 INFO  L255         TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:21:59,653 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:21:59,758 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:21:59,758 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:22:02,056 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:22:02,056 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:22:02,056 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98172936]
[2024-11-03 01:22:02,057 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [98172936] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:22:02,057 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:22:02,057 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:22:02,057 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468487740]
[2024-11-03 01:22:02,057 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:22:02,058 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:22:02,058 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:22:02,059 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:22:02,059 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:22:02,060 INFO  L87              Difference]: Start difference. First operand 262 states and 429 transitions. Second operand  has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:22:06,667 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:22:10,677 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:22:10,826 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:22:10,826 INFO  L93              Difference]: Finished difference Result 772 states and 1265 transitions.
[2024-11-03 01:22:10,827 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:22:10,828 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 344
[2024-11-03 01:22:10,829 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:22:10,837 INFO  L225             Difference]: With dead ends: 772
[2024-11-03 01:22:10,837 INFO  L226             Difference]: Without dead ends: 513
[2024-11-03 01:22:10,839 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 685 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:22:10,840 INFO  L432           NwaCegarLoop]: 250 mSDtfsCounter, 230 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time
[2024-11-03 01:22:10,841 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 467 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time]
[2024-11-03 01:22:10,844 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 513 states.
[2024-11-03 01:22:10,924 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 286.
[2024-11-03 01:22:10,925 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 286 states, 185 states have (on average 1.4594594594594594) internal successors, (270), 186 states have internal predecessors, (270), 98 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 97 states have call predecessors, (98), 98 states have call successors, (98)
[2024-11-03 01:22:10,927 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 466 transitions.
[2024-11-03 01:22:10,928 INFO  L78                 Accepts]: Start accepts. Automaton has 286 states and 466 transitions. Word has length 344
[2024-11-03 01:22:10,929 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:22:10,929 INFO  L471      AbstractCegarLoop]: Abstraction has 286 states and 466 transitions.
[2024-11-03 01:22:10,929 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:22:10,930 INFO  L276                IsEmpty]: Start isEmpty. Operand 286 states and 466 transitions.
[2024-11-03 01:22:10,932 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 346
[2024-11-03 01:22:10,932 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:22:10,932 INFO  L215           NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:22:10,941 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-03 01:22:11,133 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:22:11,134 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:22:11,134 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:22:11,135 INFO  L85        PathProgramCache]: Analyzing trace with hash -428901389, now seen corresponding path program 1 times
[2024-11-03 01:22:11,135 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:22:11,135 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515920422]
[2024-11-03 01:22:11,135 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:22:11,135 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:22:11,135 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:22:11,138 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)
[2024-11-03 01:22:11,139 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 01:22:11,707 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:22:11,734 INFO  L255         TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:22:11,740 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:22:11,995 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:22:11,995 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:22:14,420 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:22:14,421 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:22:14,421 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1515920422]
[2024-11-03 01:22:14,421 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1515920422] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:22:14,421 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:22:14,421 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:22:14,421 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311855189]
[2024-11-03 01:22:14,422 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:22:14,422 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:22:14,422 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:22:14,423 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:22:14,423 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:22:14,424 INFO  L87              Difference]: Start difference. First operand 286 states and 466 transitions. Second operand  has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:22:19,105 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:22:23,109 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:22:23,371 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:22:23,371 INFO  L93              Difference]: Finished difference Result 796 states and 1298 transitions.
[2024-11-03 01:22:23,375 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:22:23,375 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 345
[2024-11-03 01:22:23,376 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:22:23,382 INFO  L225             Difference]: With dead ends: 796
[2024-11-03 01:22:23,382 INFO  L226             Difference]: Without dead ends: 513
[2024-11-03 01:22:23,384 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:22:23,387 INFO  L432           NwaCegarLoop]: 407 mSDtfsCounter, 217 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time
[2024-11-03 01:22:23,387 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 632 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time]
[2024-11-03 01:22:23,392 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 513 states.
[2024-11-03 01:22:23,430 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 286.
[2024-11-03 01:22:23,433 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 286 states, 185 states have (on average 1.427027027027027) internal successors, (264), 186 states have internal predecessors, (264), 98 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 97 states have call predecessors, (98), 98 states have call successors, (98)
[2024-11-03 01:22:23,435 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 460 transitions.
[2024-11-03 01:22:23,436 INFO  L78                 Accepts]: Start accepts. Automaton has 286 states and 460 transitions. Word has length 345
[2024-11-03 01:22:23,437 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:22:23,437 INFO  L471      AbstractCegarLoop]: Abstraction has 286 states and 460 transitions.
[2024-11-03 01:22:23,438 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:22:23,440 INFO  L276                IsEmpty]: Start isEmpty. Operand 286 states and 460 transitions.
[2024-11-03 01:22:23,443 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 346
[2024-11-03 01:22:23,443 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:22:23,443 INFO  L215           NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:22:23,455 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0
[2024-11-03 01:22:23,649 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:22:23,650 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:22:23,651 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:22:23,651 INFO  L85        PathProgramCache]: Analyzing trace with hash -952070494, now seen corresponding path program 1 times
[2024-11-03 01:22:23,651 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:22:23,651 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424851662]
[2024-11-03 01:22:23,651 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:22:23,651 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:22:23,651 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:22:23,652 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:22:23,653 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2024-11-03 01:22:25,313 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:22:25,343 INFO  L255         TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 01:22:25,349 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:22:27,361 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 2323 proven. 39 refuted. 0 times theorem prover too weak. 3798 trivial. 0 not checked.
[2024-11-03 01:22:27,362 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:22:30,799 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 126 proven. 39 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked.
[2024-11-03 01:22:30,799 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:22:30,799 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424851662]
[2024-11-03 01:22:30,800 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1424851662] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 01:22:30,800 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 01:22:30,800 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-03 01:22:30,800 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256844890]
[2024-11-03 01:22:30,800 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 01:22:30,801 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 01:22:30,801 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:22:30,802 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 01:22:30,802 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 01:22:30,802 INFO  L87              Difference]: Start difference. First operand 286 states and 460 transitions. Second operand  has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70)
[2024-11-03 01:22:38,676 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:22:42,684 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:22:46,687 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:22:49,066 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:22:49,067 INFO  L93              Difference]: Finished difference Result 521 states and 832 transitions.
[2024-11-03 01:22:49,071 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-03 01:22:49,072 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 345
[2024-11-03 01:22:49,073 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:22:49,076 INFO  L225             Difference]: With dead ends: 521
[2024-11-03 01:22:49,076 INFO  L226             Difference]: Without dead ends: 238
[2024-11-03 01:22:49,077 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 682 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2024-11-03 01:22:49,082 INFO  L432           NwaCegarLoop]: 244 mSDtfsCounter, 252 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 95 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time
[2024-11-03 01:22:49,083 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 533 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 508 Invalid, 3 Unknown, 0 Unchecked, 17.8s Time]
[2024-11-03 01:22:49,084 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 238 states.
[2024-11-03 01:22:49,102 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 233.
[2024-11-03 01:22:49,103 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 233 states, 131 states have (on average 1.3053435114503817) internal successors, (171), 132 states have internal predecessors, (171), 98 states have call successors, (98), 3 states have call predecessors, (98), 3 states have return successors, (98), 97 states have call predecessors, (98), 98 states have call successors, (98)
[2024-11-03 01:22:49,104 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 367 transitions.
[2024-11-03 01:22:49,105 INFO  L78                 Accepts]: Start accepts. Automaton has 233 states and 367 transitions. Word has length 345
[2024-11-03 01:22:49,106 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:22:49,106 INFO  L471      AbstractCegarLoop]: Abstraction has 233 states and 367 transitions.
[2024-11-03 01:22:49,106 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70)
[2024-11-03 01:22:49,107 INFO  L276                IsEmpty]: Start isEmpty. Operand 233 states and 367 transitions.
[2024-11-03 01:22:49,109 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 347
[2024-11-03 01:22:49,109 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:22:49,109 INFO  L215           NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:22:49,138 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0
[2024-11-03 01:22:49,310 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:22:49,312 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:22:49,312 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:22:49,312 INFO  L85        PathProgramCache]: Analyzing trace with hash -1292875356, now seen corresponding path program 1 times
[2024-11-03 01:22:49,312 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:22:49,312 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945207685]
[2024-11-03 01:22:49,312 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:22:49,313 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:22:49,313 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:22:49,315 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:22:49,317 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process
[2024-11-03 01:22:52,812 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:22:52,870 INFO  L255         TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-03 01:22:52,880 INFO  L278         TraceCheckSpWp]: Computing forward predicates...