/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-87.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:42:20,552 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:42:20,617 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 21:42:20,624 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:42:20,625 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:42:20,651 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:42:20,651 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:42:20,652 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:42:20,654 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:42:20,656 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:42:20,656 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:42:20,656 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:42:20,657 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:42:20,657 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:42:20,657 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:42:20,658 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:42:20,658 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:42:20,658 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:42:20,658 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:42:20,659 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:42:20,659 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:42:20,663 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:42:20,663 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:42:20,663 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:42:20,664 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:42:20,664 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:42:20,664 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:42:20,664 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:42:20,664 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:42:20,665 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:42:20,665 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:42:20,665 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:42:20,665 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:42:20,666 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:42:20,666 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:42:20,666 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:42:20,667 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:42:20,667 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:42:20,667 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:42:20,667 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:42:20,667 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:42:20,668 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:42:20,668 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:42:20,668 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:42:20,669 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:42:20,902 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:42:20,926 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:42:20,930 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:42:20,931 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:42:20,932 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:42:20,933 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-87.i
[2024-11-02 21:42:22,340 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:42:22,560 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:42:22,560 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-87.i
[2024-11-02 21:42:22,569 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62de3c1b3/13c985d844da475fbac2af50b71c1fb1/FLAG048e93e17
[2024-11-02 21:42:22,582 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62de3c1b3/13c985d844da475fbac2af50b71c1fb1
[2024-11-02 21:42:22,585 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:42:22,586 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:42:22,587 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:42:22,587 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:42:22,593 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:42:22,594 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:22,595 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ea501c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22, skipping insertion in model container
[2024-11-02 21:42:22,595 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:22,634 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:42:22,806 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-87.i[916,929]
[2024-11-02 21:42:22,914 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:42:22,926 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:42:22,937 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-87.i[916,929]
[2024-11-02 21:42:22,974 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:42:22,997 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:42:22,999 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22 WrapperNode
[2024-11-02 21:42:22,999 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:42:23,001 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:42:23,001 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:42:23,001 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:42:23,007 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:23,022 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:23,056 INFO  L138                Inliner]: procedures = 27, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 207
[2024-11-02 21:42:23,057 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:42:23,057 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:42:23,057 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:42:23,058 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:42:23,069 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:23,070 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:23,074 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:23,086 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 21:42:23,086 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:23,086 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:23,097 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:23,100 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:23,102 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:23,104 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:23,108 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:42:23,108 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:42:23,109 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:42:23,109 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:42:23,109 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22" (1/1) ...
[2024-11-02 21:42:23,117 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:42:23,135 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:42:23,153 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 21:42:23,156 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 21:42:23,180 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:42:23,180 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:42:23,180 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:42:23,180 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:42:23,181 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:42:23,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:42:23,266 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:42:23,268 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:42:24,187 INFO  L?                        ?]: Removed 32 outVars from TransFormulas that were not future-live.
[2024-11-02 21:42:24,187 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:42:24,203 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:42:24,203 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:42:24,204 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:42:24 BoogieIcfgContainer
[2024-11-02 21:42:24,204 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:42:24,207 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:42:24,207 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:42:24,210 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:42:24,210 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:42:22" (1/3) ...
[2024-11-02 21:42:24,211 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638e153a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:42:24, skipping insertion in model container
[2024-11-02 21:42:24,211 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:42:22" (2/3) ...
[2024-11-02 21:42:24,212 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638e153a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:42:24, skipping insertion in model container
[2024-11-02 21:42:24,212 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:42:24" (3/3) ...
[2024-11-02 21:42:24,214 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-87.i
[2024-11-02 21:42:24,229 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:42:24,230 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:42:24,287 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:42:24,292 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;@1ce4373b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:42:24,293 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:42:24,296 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 92 states, 55 states have (on average 1.3636363636363635) internal successors, (75), 56 states have internal predecessors, (75), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-02 21:42:24,308 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 214
[2024-11-02 21:42:24,308 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:42:24,309 INFO  L215           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:42:24,309 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:42:24,313 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:42:24,314 INFO  L85        PathProgramCache]: Analyzing trace with hash -1518696061, now seen corresponding path program 1 times
[2024-11-02 21:42:24,320 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:42:24,321 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754995468]
[2024-11-02 21:42:24,321 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:42:24,322 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:42:24,323 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:42:24,324 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 21:42:24,325 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 21:42:24,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:42:24,597 INFO  L255         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:42:24,610 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:42:24,662 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked.
[2024-11-02 21:42:24,663 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:42:24,977 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked.
[2024-11-02 21:42:24,978 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:42:24,981 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754995468]
[2024-11-02 21:42:24,981 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [754995468] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:42:24,982 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:42:24,982 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:42:24,983 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136318539]
[2024-11-02 21:42:24,984 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:42:24,989 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:42:24,989 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:42:25,015 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:42:25,015 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:42:25,017 INFO  L87              Difference]: Start difference. First operand  has 92 states, 55 states have (on average 1.3636363636363635) internal successors, (75), 56 states have internal predecessors, (75), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34)
[2024-11-02 21:42:25,044 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:42:25,045 INFO  L93              Difference]: Finished difference Result 177 states and 314 transitions.
[2024-11-02 21:42:25,046 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:42:25,047 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 213
[2024-11-02 21:42:25,047 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:42:25,054 INFO  L225             Difference]: With dead ends: 177
[2024-11-02 21:42:25,054 INFO  L226             Difference]: Without dead ends: 88
[2024-11-02 21:42:25,058 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 424 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 21:42:25,061 INFO  L432           NwaCegarLoop]: 136 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, 136 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 21:42:25,062 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:42:25,074 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2024-11-02 21:42:25,102 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88.
[2024-11-02 21:42:25,104 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 88 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 52 states have internal predecessors, (68), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-02 21:42:25,109 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 136 transitions.
[2024-11-02 21:42:25,113 INFO  L78                 Accepts]: Start accepts. Automaton has 88 states and 136 transitions. Word has length 213
[2024-11-02 21:42:25,113 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:42:25,114 INFO  L471      AbstractCegarLoop]: Abstraction has 88 states and 136 transitions.
[2024-11-02 21:42:25,116 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34)
[2024-11-02 21:42:25,116 INFO  L276                IsEmpty]: Start isEmpty. Operand 88 states and 136 transitions.
[2024-11-02 21:42:25,121 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 214
[2024-11-02 21:42:25,122 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:42:25,122 INFO  L215           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:42:25,152 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 21:42:25,323 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 21:42:25,323 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:42:25,324 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:42:25,324 INFO  L85        PathProgramCache]: Analyzing trace with hash 268510907, now seen corresponding path program 1 times
[2024-11-02 21:42:25,324 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:42:25,325 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779198783]
[2024-11-02 21:42:25,325 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:42:25,325 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:42:25,325 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:42:25,327 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 21:42:25,328 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 21:42:25,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:42:25,569 INFO  L255         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 21:42:25,584 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:42:26,034 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 1143 proven. 54 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked.
[2024-11-02 21:42:26,034 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:42:26,488 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 45 proven. 54 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked.
[2024-11-02 21:42:26,488 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:42:26,488 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779198783]
[2024-11-02 21:42:26,489 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [779198783] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 21:42:26,489 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 21:42:26,489 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-02 21:42:26,489 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735407179]
[2024-11-02 21:42:26,489 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 21:42:26,491 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-02 21:42:26,491 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:42:26,492 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-02 21:42:26,492 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-02 21:42:26,493 INFO  L87              Difference]: Start difference. First operand 88 states and 136 transitions. Second operand  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53)
[2024-11-02 21:42:27,481 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:42:27,481 INFO  L93              Difference]: Finished difference Result 181 states and 276 transitions.
[2024-11-02 21:42:27,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-02 21:42:27,505 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 213
[2024-11-02 21:42:27,506 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:42:27,508 INFO  L225             Difference]: With dead ends: 181
[2024-11-02 21:42:27,508 INFO  L226             Difference]: Without dead ends: 96
[2024-11-02 21:42:27,509 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 418 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2024-11-02 21:42:27,510 INFO  L432           NwaCegarLoop]: 96 mSDtfsCounter, 111 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-02 21:42:27,510 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 218 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-02 21:42:27,511 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 96 states.
[2024-11-02 21:42:27,524 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92.
[2024-11-02 21:42:27,524 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 55 states have internal predecessors, (70), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-02 21:42:27,525 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 138 transitions.
[2024-11-02 21:42:27,526 INFO  L78                 Accepts]: Start accepts. Automaton has 92 states and 138 transitions. Word has length 213
[2024-11-02 21:42:27,527 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:42:27,527 INFO  L471      AbstractCegarLoop]: Abstraction has 92 states and 138 transitions.
[2024-11-02 21:42:27,527 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53)
[2024-11-02 21:42:27,527 INFO  L276                IsEmpty]: Start isEmpty. Operand 92 states and 138 transitions.
[2024-11-02 21:42:27,530 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 214
[2024-11-02 21:42:27,530 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:42:27,530 INFO  L215           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:42:27,552 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-02 21:42:27,730 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 21:42:27,731 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:42:27,732 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:42:27,732 INFO  L85        PathProgramCache]: Analyzing trace with hash -1319836995, now seen corresponding path program 1 times
[2024-11-02 21:42:27,732 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:42:27,732 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046414602]
[2024-11-02 21:42:27,732 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:42:27,733 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:42:27,733 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:42:27,734 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 21:42:27,735 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 21:42:27,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:42:27,941 INFO  L255         TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-02 21:42:27,947 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:42:28,404 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 1229 proven. 60 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked.
[2024-11-02 21:42:28,405 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:42:29,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 132 proven. 63 refuted. 0 times theorem prover too weak. 2049 trivial. 0 not checked.
[2024-11-02 21:42:29,107 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:42:29,107 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046414602]
[2024-11-02 21:42:29,108 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1046414602] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 21:42:29,108 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 21:42:29,108 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16
[2024-11-02 21:42:29,108 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526895147]
[2024-11-02 21:42:29,108 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 21:42:29,109 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-02 21:42:29,111 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:42:29,112 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-02 21:42:29,113 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240
[2024-11-02 21:42:29,114 INFO  L87              Difference]: Start difference. First operand 92 states and 138 transitions. Second operand  has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55)
[2024-11-02 21:42:31,197 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:42:31,197 INFO  L93              Difference]: Finished difference Result 304 states and 442 transitions.
[2024-11-02 21:42:31,198 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2024-11-02 21:42:31,198 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 213
[2024-11-02 21:42:31,199 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:42:31,201 INFO  L225             Difference]: With dead ends: 304
[2024-11-02 21:42:31,201 INFO  L226             Difference]: Without dead ends: 215
[2024-11-02 21:42:31,202 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 410 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930
[2024-11-02 21:42:31,203 INFO  L432           NwaCegarLoop]: 116 mSDtfsCounter, 394 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-11-02 21:42:31,204 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 480 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-11-02 21:42:31,205 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 215 states.
[2024-11-02 21:42:31,240 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 184.
[2024-11-02 21:42:31,240 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 184 states, 110 states have (on average 1.2272727272727273) internal successors, (135), 111 states have internal predecessors, (135), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-02 21:42:31,244 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 267 transitions.
[2024-11-02 21:42:31,245 INFO  L78                 Accepts]: Start accepts. Automaton has 184 states and 267 transitions. Word has length 213
[2024-11-02 21:42:31,246 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:42:31,246 INFO  L471      AbstractCegarLoop]: Abstraction has 184 states and 267 transitions.
[2024-11-02 21:42:31,246 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55)
[2024-11-02 21:42:31,246 INFO  L276                IsEmpty]: Start isEmpty. Operand 184 states and 267 transitions.
[2024-11-02 21:42:31,253 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 214
[2024-11-02 21:42:31,253 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:42:31,253 INFO  L215           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:42:31,283 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 21:42:31,454 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 21:42:31,455 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:42:31,456 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:42:31,456 INFO  L85        PathProgramCache]: Analyzing trace with hash 980985595, now seen corresponding path program 1 times
[2024-11-02 21:42:31,456 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:42:31,457 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710721370]
[2024-11-02 21:42:31,457 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:42:31,457 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:42:31,457 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:42:31,459 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 21:42:31,462 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 21:42:32,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:42:32,173 INFO  L255         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-02 21:42:32,179 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:42:47,541 WARN  L873   $PredicateComparison]: unable to prove that (and (exists ((~var_1_18~0 (_ BitVec 16)) (~var_1_9~0 (_ BitVec 16))) (bvslt (bvadd ((_ zero_extend 16) ~var_1_9~0) ((_ zero_extend 16) ~var_1_18~0)) (bvsdiv c_~var_1_5~0 (_ bv4294967196 32)))) (let ((.cse0 ((_ sign_extend 16) c_~var_1_22~0))) (or (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_28~0 (_ BitVec 32)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse2 ((_ sign_extend 24) ~var_1_33~0)) (.cse1 ((_ sign_extend 24) ~var_1_37~0)) (.cse3 ((_ zero_extend 24) ~var_1_8~0))) (and (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd ((_ sign_extend 16) ((_ extract 15 0) ~var_1_28~0)) .cse0)) (bvsgt .cse1 .cse2) (bvslt .cse1 ((_ sign_extend 24) ~var_1_36~0)) (bvsge .cse2 (_ bv62 32)) (= c_~var_1_22~0 ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse3))) ((_ sign_extend 24) ((_ extract 7 0) .cse1))))) (not (bvult .cse3 ~var_1_28~0))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse4 ((_ sign_extend 24) ~var_1_37~0)) (.cse6 ((_ sign_extend 24) ~var_1_33~0)) (.cse5 ((_ zero_extend 24) ~var_1_8~0))) (and (bvsge .cse4 (_ bv0 32)) (= ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse5))) ((_ sign_extend 24) ((_ extract 7 0) .cse6)))) c_~var_1_22~0) (not (bvsgt .cse4 .cse6)) (bvslt .cse4 ((_ sign_extend 24) ~var_1_36~0)) (bvsge .cse6 (_ bv62 32)) (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd .cse0 ((_ sign_extend 16) ((_ extract 15 0) .cse5))))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse8 ((_ sign_extend 24) ~var_1_33~0)) (.cse9 ((_ zero_extend 24) ~var_1_8~0)) (.cse7 ((_ sign_extend 24) ~var_1_36~0))) (and (not (bvsgt .cse7 .cse8)) (= ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse9))) ((_ sign_extend 24) ((_ extract 7 0) .cse8)))) c_~var_1_22~0) (not (bvslt ((_ sign_extend 24) ~var_1_37~0) .cse7)) (bvsge .cse8 (_ bv62 32)) (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd .cse0 ((_ sign_extend 16) ((_ extract 15 0) .cse9)))) (bvsge .cse7 (_ bv0 32))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse11 ((_ sign_extend 24) ~var_1_33~0)) (.cse10 ((_ sign_extend 24) ~var_1_37~0)) (.cse12 ((_ zero_extend 24) ~var_1_8~0))) (and (bvsgt .cse10 .cse11) (bvslt .cse10 ((_ sign_extend 24) ~var_1_36~0)) (bvsge .cse11 (_ bv62 32)) (= c_~var_1_22~0 ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse12))) ((_ sign_extend 24) ((_ extract 7 0) .cse10))))) (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd .cse0 ((_ sign_extend 16) ((_ extract 15 0) .cse12))))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_28~0 (_ BitVec 32)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse13 ((_ sign_extend 24) ~var_1_36~0)) (.cse14 ((_ sign_extend 24) ~var_1_33~0)) (.cse15 ((_ zero_extend 24) ~var_1_8~0))) (and (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd ((_ sign_extend 16) ((_ extract 15 0) ~var_1_28~0)) .cse0)) (bvsgt .cse13 .cse14) (= ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse15))) ((_ sign_extend 24) ((_ extract 7 0) .cse13)))) c_~var_1_22~0) (not (bvslt ((_ sign_extend 24) ~var_1_37~0) .cse13)) (bvsge .cse14 (_ bv62 32)) (not (bvult .cse15 ~var_1_28~0))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_28~0 (_ BitVec 32)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse17 ((_ sign_extend 24) ~var_1_33~0)) (.cse16 ((_ sign_extend 24) ~var_1_36~0)) (.cse18 ((_ zero_extend 24) ~var_1_8~0))) (and (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd ((_ sign_extend 16) ((_ extract 15 0) ~var_1_28~0)) .cse0)) (not (bvsgt .cse16 .cse17)) (= ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse18))) ((_ sign_extend 24) ((_ extract 7 0) .cse17)))) c_~var_1_22~0) (not (bvslt ((_ sign_extend 24) ~var_1_37~0) .cse16)) (bvsge .cse17 (_ bv62 32)) (bvsge .cse16 (_ bv0 32)) (not (bvult .cse18 ~var_1_28~0))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse19 ((_ sign_extend 24) ~var_1_36~0)) (.cse20 ((_ sign_extend 24) ~var_1_33~0)) (.cse21 ((_ zero_extend 24) ~var_1_8~0))) (and (bvsgt .cse19 .cse20) (= ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse21))) ((_ sign_extend 24) ((_ extract 7 0) .cse19)))) c_~var_1_22~0) (not (bvslt ((_ sign_extend 24) ~var_1_37~0) .cse19)) (bvsge .cse20 (_ bv62 32)) (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd .cse0 ((_ sign_extend 16) ((_ extract 15 0) .cse21))))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_28~0 (_ BitVec 32)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse22 ((_ sign_extend 24) ~var_1_37~0)) (.cse24 ((_ sign_extend 24) ~var_1_33~0)) (.cse23 ((_ zero_extend 24) ~var_1_8~0))) (and (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd ((_ sign_extend 16) ((_ extract 15 0) ~var_1_28~0)) .cse0)) (bvsge .cse22 (_ bv0 32)) (= ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse23))) ((_ sign_extend 24) ((_ extract 7 0) .cse24)))) c_~var_1_22~0) (not (bvsgt .cse22 .cse24)) (bvslt .cse22 ((_ sign_extend 24) ~var_1_36~0)) (bvsge .cse24 (_ bv62 32)) (not (bvult .cse23 ~var_1_28~0)))))))) is different from true
[2024-11-02 21:42:47,730 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 1040 proven. 30 refuted. 0 times theorem prover too weak. 1174 trivial. 0 not checked.
[2024-11-02 21:42:47,730 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:43:00,657 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2024-11-02 21:43:00,658 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:43:00,658 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710721370]
[2024-11-02 21:43:00,658 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1710721370] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:43:00,658 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:43:00,658 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 20
[2024-11-02 21:43:00,659 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208405340]
[2024-11-02 21:43:00,659 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:43:00,659 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-02 21:43:00,659 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:43:00,660 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-02 21:43:00,660 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=285, Unknown=2, NotChecked=34, Total=380
[2024-11-02 21:43:00,661 INFO  L87              Difference]: Start difference. First operand 184 states and 267 transitions. Second operand  has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2024-11-02 21:43:23,165 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:43:23,166 INFO  L93              Difference]: Finished difference Result 433 states and 623 transitions.
[2024-11-02 21:43:23,179 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-02 21:43:23,180 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 213
[2024-11-02 21:43:23,181 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:43:23,185 INFO  L225             Difference]: With dead ends: 433
[2024-11-02 21:43:23,185 INFO  L226             Difference]: Without dead ends: 252
[2024-11-02 21:43:23,187 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 30.6s TimeCoverageRelationStatistics Valid=72, Invalid=350, Unknown=2, NotChecked=38, Total=462
[2024-11-02 21:43:23,190 INFO  L432           NwaCegarLoop]: 122 mSDtfsCounter, 59 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time
[2024-11-02 21:43:23,190 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 565 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time]
[2024-11-02 21:43:23,194 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 252 states.
[2024-11-02 21:43:23,222 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 198.
[2024-11-02 21:43:23,223 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 198 states, 124 states have (on average 1.25) internal successors, (155), 125 states have internal predecessors, (155), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-02 21:43:23,224 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 287 transitions.
[2024-11-02 21:43:23,225 INFO  L78                 Accepts]: Start accepts. Automaton has 198 states and 287 transitions. Word has length 213
[2024-11-02 21:43:23,225 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:43:23,226 INFO  L471      AbstractCegarLoop]: Abstraction has 198 states and 287 transitions.
[2024-11-02 21:43:23,226 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2024-11-02 21:43:23,226 INFO  L276                IsEmpty]: Start isEmpty. Operand 198 states and 287 transitions.
[2024-11-02 21:43:23,228 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 214
[2024-11-02 21:43:23,228 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:43:23,228 INFO  L215           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:43:23,259 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-02 21:43:23,429 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:43:23,429 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:43:23,430 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:43:23,430 INFO  L85        PathProgramCache]: Analyzing trace with hash 1661043965, now seen corresponding path program 1 times
[2024-11-02 21:43:23,430 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:43:23,430 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835554716]
[2024-11-02 21:43:23,431 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:43:23,431 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:43:23,431 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:43:23,455 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:43:23,456 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-02 21:43:23,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:43:23,832 INFO  L255         TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 42 conjuncts are in the unsatisfiable core
[2024-11-02 21:43:23,839 INFO  L278         TraceCheckSpWp]: Computing forward predicates...