/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-55.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:38:05,108 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:38:05,196 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 21:38:05,205 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:38:05,205 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:38:05,238 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:38:05,238 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:38:05,239 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:38:05,239 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:38:05,239 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:38:05,239 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:38:05,240 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:38:05,240 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:38:05,240 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:38:05,241 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:38:05,241 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:38:05,241 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:38:05,241 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:38:05,241 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:38:05,242 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:38:05,242 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:38:05,242 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:38:05,243 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:38:05,243 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:38:05,243 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:38:05,243 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:38:05,243 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:38:05,244 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:38:05,244 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:38:05,244 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:38:05,244 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:38:05,244 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:38:05,245 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:38:05,245 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:38:05,245 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:38:05,245 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:38:05,245 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:38:05,245 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:38:05,246 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:38:05,246 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:38:05,246 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:38:05,246 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:38:05,246 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:38:05,246 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:38:05,247 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:38:05,486 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:38:05,521 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:38:05,524 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:38:05,525 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:38:05,528 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:38:05,530 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-55.i
[2024-11-02 21:38:07,017 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:38:07,172 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:38:07,173 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-55.i
[2024-11-02 21:38:07,179 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf516559a/3a7fd097c4014c848d50c099a1592abc/FLAGd551c1e61
[2024-11-02 21:38:07,580 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf516559a/3a7fd097c4014c848d50c099a1592abc
[2024-11-02 21:38:07,582 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:38:07,583 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:38:07,584 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:38:07,584 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:38:07,589 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:38:07,589 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:07,590 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15fd3f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07, skipping insertion in model container
[2024-11-02 21:38:07,590 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:07,618 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:38:07,749 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_amount100_file-55.i[916,929]
[2024-11-02 21:38:07,832 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:38:07,846 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:38:07,856 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_amount100_file-55.i[916,929]
[2024-11-02 21:38:07,927 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:38:07,944 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:38:07,944 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07 WrapperNode
[2024-11-02 21:38:07,944 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:38:07,945 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:38:07,945 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:38:07,945 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:38:07,952 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:07,968 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:08,002 INFO  L138                Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 184
[2024-11-02 21:38:08,003 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:38:08,003 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:38:08,004 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:38:08,004 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:38:08,017 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:08,017 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:08,022 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:08,043 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].
[2024-11-02 21:38:08,044 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:08,044 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:08,051 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:08,054 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:08,056 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:08,057 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:08,060 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:38:08,061 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:38:08,061 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:38:08,061 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:38:08,062 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07" (1/1) ...
[2024-11-02 21:38:08,066 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:38:08,078 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:38:08,098 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)
[2024-11-02 21:38:08,103 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
[2024-11-02 21:38:08,123 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:38:08,123 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:38:08,123 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:38:08,124 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:38:08,124 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:38:08,125 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:38:08,206 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:38:08,207 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:38:15,157 INFO  L?                        ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-02 21:38:15,158 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:38:15,174 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:38:15,175 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:38:15,176 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:38:15 BoogieIcfgContainer
[2024-11-02 21:38:15,176 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:38:15,177 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:38:15,178 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:38:15,180 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:38:15,180 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:38:07" (1/3) ...
[2024-11-02 21:38:15,181 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1341812e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:38:15, skipping insertion in model container
[2024-11-02 21:38:15,181 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:38:07" (2/3) ...
[2024-11-02 21:38:15,181 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1341812e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:38:15, skipping insertion in model container
[2024-11-02 21:38:15,181 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:38:15" (3/3) ...
[2024-11-02 21:38:15,182 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-55.i
[2024-11-02 21:38:15,194 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:38:15,194 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:38:15,239 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:38:15,244 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;@1424f6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:38:15,245 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:38:15,249 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 74 states, 47 states have (on average 1.425531914893617) internal successors, (67), 48 states have internal predecessors, (67), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-02 21:38:15,259 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2024-11-02 21:38:15,259 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:38:15,260 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:38:15,260 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:38:15,264 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:38:15,264 INFO  L85        PathProgramCache]: Analyzing trace with hash -260757358, now seen corresponding path program 1 times
[2024-11-02 21:38:15,271 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:38:15,272 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377191621]
[2024-11-02 21:38:15,272 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:38:15,274 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:38:15,274 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:38:15,276 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:38:15,276 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 21:38:15,589 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:38:15,621 INFO  L255         TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:38:15,633 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:38:15,665 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked.
[2024-11-02 21:38:15,665 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:38:16,170 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked.
[2024-11-02 21:38:16,171 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:38:16,171 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377191621]
[2024-11-02 21:38:16,172 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1377191621] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:38:16,172 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:38:16,172 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:38:16,173 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694069821]
[2024-11-02 21:38:16,174 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:38:16,177 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:38:16,177 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:38:16,193 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:38:16,194 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:38:16,195 INFO  L87              Difference]: Start difference. First operand  has 74 states, 47 states have (on average 1.425531914893617) internal successors, (67), 48 states have internal predecessors, (67), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24)
[2024-11-02 21:38:16,215 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:38:16,215 INFO  L93              Difference]: Finished difference Result 141 states and 248 transitions.
[2024-11-02 21:38:16,216 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:38:16,217 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 155
[2024-11-02 21:38:16,217 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:38:16,222 INFO  L225             Difference]: With dead ends: 141
[2024-11-02 21:38:16,222 INFO  L226             Difference]: Without dead ends: 70
[2024-11-02 21:38:16,224 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:38:16,227 INFO  L432           NwaCegarLoop]: 107 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, 107 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
[2024-11-02 21:38:16,227 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:38:16,239 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2024-11-02 21:38:16,254 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70.
[2024-11-02 21:38:16,255 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 70 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 44 states have internal predecessors, (59), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-02 21:38:16,257 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 107 transitions.
[2024-11-02 21:38:16,258 INFO  L78                 Accepts]: Start accepts. Automaton has 70 states and 107 transitions. Word has length 155
[2024-11-02 21:38:16,258 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:38:16,258 INFO  L471      AbstractCegarLoop]: Abstraction has 70 states and 107 transitions.
[2024-11-02 21:38:16,259 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24)
[2024-11-02 21:38:16,259 INFO  L276                IsEmpty]: Start isEmpty. Operand 70 states and 107 transitions.
[2024-11-02 21:38:16,261 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2024-11-02 21:38:16,261 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:38:16,262 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:38:16,290 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-02 21:38:16,463 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:38:16,465 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:38:16,465 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:38:16,465 INFO  L85        PathProgramCache]: Analyzing trace with hash 1143338062, now seen corresponding path program 1 times
[2024-11-02 21:38:16,466 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:38:16,466 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096405471]
[2024-11-02 21:38:16,466 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:38:16,466 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:38:16,466 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:38:16,469 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:38:16,470 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 21:38:16,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:38:16,754 INFO  L255         TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-02 21:38:16,759 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:38:18,253 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-02 21:38:18,254 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:38:19,371 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-02 21:38:19,371 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:38:19,372 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096405471]
[2024-11-02 21:38:19,372 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2096405471] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:38:19,372 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:38:19,372 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-02 21:38:19,372 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74466986]
[2024-11-02 21:38:19,372 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:38:19,374 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-02 21:38:19,374 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:38:19,383 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-02 21:38:19,383 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-02 21:38:19,383 INFO  L87              Difference]: Start difference. First operand 70 states and 107 transitions. Second operand  has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48)
[2024-11-02 21:38:23,689 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:38:27,154 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:38:31,247 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:38:31,305 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:38:31,305 INFO  L93              Difference]: Finished difference Result 229 states and 352 transitions.
[2024-11-02 21:38:31,347 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-02 21:38:31,348 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 155
[2024-11-02 21:38:31,349 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:38:31,350 INFO  L225             Difference]: With dead ends: 229
[2024-11-02 21:38:31,350 INFO  L226             Difference]: Without dead ends: 162
[2024-11-02 21:38:31,351 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-02 21:38:31,352 INFO  L432           NwaCegarLoop]: 103 mSDtfsCounter, 145 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time
[2024-11-02 21:38:31,352 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 459 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 20 Invalid, 1 Unknown, 0 Unchecked, 11.9s Time]
[2024-11-02 21:38:31,353 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 162 states.
[2024-11-02 21:38:31,371 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 114.
[2024-11-02 21:38:31,371 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 114 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 63 states have internal predecessors, (78), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48)
[2024-11-02 21:38:31,373 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 174 transitions.
[2024-11-02 21:38:31,373 INFO  L78                 Accepts]: Start accepts. Automaton has 114 states and 174 transitions. Word has length 155
[2024-11-02 21:38:31,374 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:38:31,374 INFO  L471      AbstractCegarLoop]: Abstraction has 114 states and 174 transitions.
[2024-11-02 21:38:31,374 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48)
[2024-11-02 21:38:31,374 INFO  L276                IsEmpty]: Start isEmpty. Operand 114 states and 174 transitions.
[2024-11-02 21:38:31,376 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2024-11-02 21:38:31,376 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:38:31,376 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:38:31,410 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-02 21:38:31,576 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:38:31,577 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:38:31,577 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:38:31,578 INFO  L85        PathProgramCache]: Analyzing trace with hash -92797754, now seen corresponding path program 1 times
[2024-11-02 21:38:31,578 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:38:31,578 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527562285]
[2024-11-02 21:38:31,578 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:38:31,578 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:38:31,578 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:38:31,580 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:38:31,580 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-02 21:38:31,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:38:31,859 INFO  L255         TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-02 21:38:31,862 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:38:32,546 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 503 proven. 21 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked.
[2024-11-02 21:38:32,546 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:38:33,647 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 48 proven. 21 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked.
[2024-11-02 21:38:33,648 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:38:33,648 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527562285]
[2024-11-02 21:38:33,648 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [527562285] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 21:38:33,648 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 21:38:33,648 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2024-11-02 21:38:33,648 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333009208]
[2024-11-02 21:38:33,648 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 21:38:33,649 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 21:38:33,649 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:38:33,650 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 21:38:33,650 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-02 21:38:33,650 INFO  L87              Difference]: Start difference. First operand 114 states and 174 transitions. Second operand  has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)
[2024-11-02 21:38:39,012 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:38:42,335 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:38:47,761 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:38:47,817 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:38:47,818 INFO  L93              Difference]: Finished difference Result 266 states and 397 transitions.
[2024-11-02 21:38:47,818 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2024-11-02 21:38:47,818 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 156
[2024-11-02 21:38:47,819 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:38:47,821 INFO  L225             Difference]: With dead ends: 266
[2024-11-02 21:38:47,821 INFO  L226             Difference]: Without dead ends: 199
[2024-11-02 21:38:47,822 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 304 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272
[2024-11-02 21:38:47,823 INFO  L432           NwaCegarLoop]: 114 mSDtfsCounter, 232 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 87 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time
[2024-11-02 21:38:47,823 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 308 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 314 Invalid, 2 Unknown, 0 Unchecked, 13.6s Time]
[2024-11-02 21:38:47,824 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 199 states.
[2024-11-02 21:38:47,839 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 139.
[2024-11-02 21:38:47,840 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 139 states, 86 states have (on average 1.2790697674418605) internal successors, (110), 86 states have internal predecessors, (110), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48)
[2024-11-02 21:38:47,841 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 206 transitions.
[2024-11-02 21:38:47,842 INFO  L78                 Accepts]: Start accepts. Automaton has 139 states and 206 transitions. Word has length 156
[2024-11-02 21:38:47,842 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:38:47,842 INFO  L471      AbstractCegarLoop]: Abstraction has 139 states and 206 transitions.
[2024-11-02 21:38:47,842 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)
[2024-11-02 21:38:47,842 INFO  L276                IsEmpty]: Start isEmpty. Operand 139 states and 206 transitions.
[2024-11-02 21:38:47,844 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2024-11-02 21:38:47,844 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:38:47,844 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:38:47,877 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-02 21:38:48,044 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:38:48,045 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:38:48,045 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:38:48,045 INFO  L85        PathProgramCache]: Analyzing trace with hash 1477427513, now seen corresponding path program 1 times
[2024-11-02 21:38:48,046 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:38:48,046 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424788217]
[2024-11-02 21:38:48,046 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:38:48,046 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:38:48,046 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:38:48,048 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:38:48,051 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-02 21:38:49,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:38:49,310 INFO  L255         TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 54 conjuncts are in the unsatisfiable core
[2024-11-02 21:38:49,323 INFO  L278         TraceCheckSpWp]: Computing forward predicates...