/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_amount25_file-41.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 22:06:09,272 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 22:06:09,348 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 22:06:09,351 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 22:06:09,351 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 22:06:09,377 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 22:06:09,378 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 22:06:09,379 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 22:06:09,379 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 22:06:09,381 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 22:06:09,381 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 22:06:09,381 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 22:06:09,382 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 22:06:09,383 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 22:06:09,383 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 22:06:09,383 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 22:06:09,383 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 22:06:09,384 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 22:06:09,384 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 22:06:09,387 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 22:06:09,387 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 22:06:09,387 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 22:06:09,388 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 22:06:09,388 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 22:06:09,388 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 22:06:09,388 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 22:06:09,388 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 22:06:09,389 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 22:06:09,389 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 22:06:09,389 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 22:06:09,389 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 22:06:09,390 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 22:06:09,390 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 22:06:09,390 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 22:06:09,390 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:06:09,390 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 22:06:09,391 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 22:06:09,391 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 22:06:09,391 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 22:06:09,392 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 22:06:09,392 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 22:06:09,392 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 22:06:09,392 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 22:06:09,393 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 22:06:09,393 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:06:09,615 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 22:06:09,638 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 22:06:09,643 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 22:06:09,644 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 22:06:09,644 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 22:06:09,645 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-41.i
[2024-11-02 22:06:11,075 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 22:06:11,251 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 22:06:11,252 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-41.i
[2024-11-02 22:06:11,258 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c351c4754/0aafd225bdc64765abfc79b6de5adcfa/FLAG1ce00edc0
[2024-11-02 22:06:11,644 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c351c4754/0aafd225bdc64765abfc79b6de5adcfa
[2024-11-02 22:06:11,646 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 22:06:11,648 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 22:06:11,649 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 22:06:11,649 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 22:06:11,654 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 22:06:11,654 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:11,655 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9b2d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11, skipping insertion in model container
[2024-11-02 22:06:11,655 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:11,683 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 22:06:11,838 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_amount25_file-41.i[915,928]
[2024-11-02 22:06:11,866 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:06:11,879 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 22:06:11,888 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_amount25_file-41.i[915,928]
[2024-11-02 22:06:11,905 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:06:11,924 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 22:06:11,925 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11 WrapperNode
[2024-11-02 22:06:11,925 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 22:06:11,926 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 22:06:11,926 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 22:06:11,926 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 22:06:11,932 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:11,940 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:11,957 INFO  L138                Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101
[2024-11-02 22:06:11,957 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 22:06:11,958 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 22:06:11,958 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 22:06:11,958 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 22:06:11,967 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:11,967 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:11,972 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:11,982 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 22:06:11,982 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:11,982 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:11,989 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:11,992 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:11,994 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:11,995 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:11,997 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 22:06:11,999 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 22:06:11,999 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 22:06:11,999 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 22:06:12,001 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11" (1/1) ...
[2024-11-02 22:06:12,006 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:06:12,016 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:06:12,031 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 22:06:12,034 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 22:06:12,060 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 22:06:12,060 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 22:06:12,061 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 22:06:12,061 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 22:06:12,061 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 22:06:12,061 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 22:06:12,144 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 22:06:12,146 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 22:06:12,377 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-02 22:06:12,378 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 22:06:12,393 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 22:06:12,393 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 22:06:12,394 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:06:12 BoogieIcfgContainer
[2024-11-02 22:06:12,394 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 22:06:12,396 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 22:06:12,396 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 22:06:12,400 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 22:06:12,400 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:06:11" (1/3) ...
[2024-11-02 22:06:12,401 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1c1433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:06:12, skipping insertion in model container
[2024-11-02 22:06:12,401 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:06:11" (2/3) ...
[2024-11-02 22:06:12,401 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1c1433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:06:12, skipping insertion in model container
[2024-11-02 22:06:12,402 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:06:12" (3/3) ...
[2024-11-02 22:06:12,403 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-41.i
[2024-11-02 22:06:12,417 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 22:06:12,417 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 22:06:12,482 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 22:06:12,488 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;@7003a674, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 22:06:12,489 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 22:06:12,492 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 51 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-02 22:06:12,502 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2024-11-02 22:06:12,503 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:06:12,503 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:06:12,504 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:06:12,509 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:06:12,509 INFO  L85        PathProgramCache]: Analyzing trace with hash 637968881, now seen corresponding path program 1 times
[2024-11-02 22:06:12,516 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:06:12,516 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266054896]
[2024-11-02 22:06:12,516 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:06:12,518 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:06:12,518 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:06:12,521 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 22:06:12,523 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 22:06:12,677 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:06:12,681 INFO  L255         TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 22:06:12,691 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:06:12,735 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2024-11-02 22:06:12,735 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:06:12,899 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2024-11-02 22:06:12,900 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:06:12,900 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266054896]
[2024-11-02 22:06:12,901 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [266054896] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:06:12,901 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:06:12,901 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 22:06:12,904 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202189383]
[2024-11-02 22:06:12,904 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:06:12,908 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 22:06:12,909 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:06:12,931 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 22:06:12,932 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 22:06:12,934 INFO  L87              Difference]: Start difference. First operand  has 51 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2024-11-02 22:06:12,954 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:06:12,954 INFO  L93              Difference]: Finished difference Result 94 states and 158 transitions.
[2024-11-02 22:06:12,955 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 22:06:12,956 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 103
[2024-11-02 22:06:12,957 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:06:12,965 INFO  L225             Difference]: With dead ends: 94
[2024-11-02 22:06:12,965 INFO  L226             Difference]: Without dead ends: 46
[2024-11-02 22:06:12,969 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 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 22:06:12,972 INFO  L432           NwaCegarLoop]: 65 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, 65 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 22:06:12,974 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:06:12,990 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2024-11-02 22:06:13,009 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46.
[2024-11-02 22:06:13,010 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 46 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-02 22:06:13,012 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions.
[2024-11-02 22:06:13,013 INFO  L78                 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 103
[2024-11-02 22:06:13,013 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:06:13,014 INFO  L471      AbstractCegarLoop]: Abstraction has 46 states and 65 transitions.
[2024-11-02 22:06:13,014 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2024-11-02 22:06:13,014 INFO  L276                IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions.
[2024-11-02 22:06:13,016 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2024-11-02 22:06:13,016 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:06:13,016 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:06:13,031 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 22:06:13,217 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 22:06:13,217 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:06:13,218 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:06:13,219 INFO  L85        PathProgramCache]: Analyzing trace with hash 1758183921, now seen corresponding path program 1 times
[2024-11-02 22:06:13,219 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:06:13,219 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892625824]
[2024-11-02 22:06:13,219 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:06:13,219 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:06:13,220 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:06:13,221 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 22:06:13,223 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 22:06:13,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:06:13,335 INFO  L255         TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-02 22:06:13,344 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:06:26,699 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 256 proven. 42 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked.
[2024-11-02 22:06:26,699 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:06:38,798 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-02 22:06:38,798 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:06:38,800 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1892625824]
[2024-11-02 22:06:38,801 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1892625824] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:06:38,801 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:06:38,801 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19
[2024-11-02 22:06:38,801 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219769625]
[2024-11-02 22:06:38,801 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:06:38,803 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 22:06:38,803 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:06:38,803 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 22:06:38,804 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342
[2024-11-02 22:06:38,804 INFO  L87              Difference]: Start difference. First operand 46 states and 65 transitions. Second operand  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 22:06:39,328 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:06:39,329 INFO  L93              Difference]: Finished difference Result 114 states and 149 transitions.
[2024-11-02 22:06:39,329 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-02 22:06:39,329 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103
[2024-11-02 22:06:39,330 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:06:39,332 INFO  L225             Difference]: With dead ends: 114
[2024-11-02 22:06:39,332 INFO  L226             Difference]: Without dead ends: 112
[2024-11-02 22:06:39,333 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462
[2024-11-02 22:06:39,334 INFO  L432           NwaCegarLoop]: 76 mSDtfsCounter, 84 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-02 22:06:39,334 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 373 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-02 22:06:39,335 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 112 states.
[2024-11-02 22:06:39,353 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 92.
[2024-11-02 22:06:39,353 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 64 states have internal predecessors, (74), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-02 22:06:39,355 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 126 transitions.
[2024-11-02 22:06:39,356 INFO  L78                 Accepts]: Start accepts. Automaton has 92 states and 126 transitions. Word has length 103
[2024-11-02 22:06:39,356 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:06:39,356 INFO  L471      AbstractCegarLoop]: Abstraction has 92 states and 126 transitions.
[2024-11-02 22:06:39,357 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 22:06:39,357 INFO  L276                IsEmpty]: Start isEmpty. Operand 92 states and 126 transitions.
[2024-11-02 22:06:39,358 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2024-11-02 22:06:39,358 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:06:39,359 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:06:39,372 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 22:06:39,559 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 22:06:39,560 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:06:39,560 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:06:39,560 INFO  L85        PathProgramCache]: Analyzing trace with hash 948837295, now seen corresponding path program 1 times
[2024-11-02 22:06:39,561 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:06:39,561 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057423950]
[2024-11-02 22:06:39,561 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:06:39,561 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:06:39,561 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:06:39,563 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 22:06:39,564 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 22:06:39,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:06:39,629 INFO  L255         TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-02 22:06:39,634 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:06:43,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked.
[2024-11-02 22:06:43,685 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:07:00,774 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-02 22:07:00,775 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:07:00,775 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057423950]
[2024-11-02 22:07:00,775 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2057423950] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:07:00,775 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:07:00,776 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 14
[2024-11-02 22:07:00,776 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433051562]
[2024-11-02 22:07:00,776 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:07:00,776 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 22:07:00,777 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:07:00,777 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 22:07:00,777 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182
[2024-11-02 22:07:00,778 INFO  L87              Difference]: Start difference. First operand 92 states and 126 transitions. Second operand  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 22:07:01,035 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:07:01,035 INFO  L93              Difference]: Finished difference Result 210 states and 284 transitions.
[2024-11-02 22:07:01,036 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-02 22:07:01,036 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103
[2024-11-02 22:07:01,037 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:07:01,039 INFO  L225             Difference]: With dead ends: 210
[2024-11-02 22:07:01,039 INFO  L226             Difference]: Without dead ends: 121
[2024-11-02 22:07:01,040 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272
[2024-11-02 22:07:01,041 INFO  L432           NwaCegarLoop]: 101 mSDtfsCounter, 64 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-02 22:07:01,042 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 465 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-02 22:07:01,043 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 121 states.
[2024-11-02 22:07:01,066 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 99.
[2024-11-02 22:07:01,066 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 99 states, 66 states have (on average 1.1666666666666667) internal successors, (77), 68 states have internal predecessors, (77), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28)
[2024-11-02 22:07:01,068 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 133 transitions.
[2024-11-02 22:07:01,070 INFO  L78                 Accepts]: Start accepts. Automaton has 99 states and 133 transitions. Word has length 103
[2024-11-02 22:07:01,070 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:07:01,070 INFO  L471      AbstractCegarLoop]: Abstraction has 99 states and 133 transitions.
[2024-11-02 22:07:01,070 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 22:07:01,070 INFO  L276                IsEmpty]: Start isEmpty. Operand 99 states and 133 transitions.
[2024-11-02 22:07:01,072 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2024-11-02 22:07:01,072 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:07:01,072 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:01,095 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 22:07:01,280 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 22:07:01,281 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:07:01,282 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:07:01,282 INFO  L85        PathProgramCache]: Analyzing trace with hash 1365156911, now seen corresponding path program 1 times
[2024-11-02 22:07:01,282 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:07:01,282 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313467105]
[2024-11-02 22:07:01,282 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:07:01,282 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:07:01,283 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:07:01,284 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 22:07:01,285 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 22:07:01,346 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:07:01,350 INFO  L255         TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-02 22:07:01,355 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:07:17,405 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 256 proven. 42 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked.
[2024-11-02 22:07:17,405 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:07:28,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-02 22:07:28,612 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:07:28,612 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313467105]
[2024-11-02 22:07:28,613 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [313467105] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:07:28,613 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:07:28,613 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19
[2024-11-02 22:07:28,613 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416623744]
[2024-11-02 22:07:28,613 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:07:28,614 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 22:07:28,614 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:07:28,614 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 22:07:28,615 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342
[2024-11-02 22:07:28,619 INFO  L87              Difference]: Start difference. First operand 99 states and 133 transitions. Second operand  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 22:07:28,824 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:07:28,824 INFO  L93              Difference]: Finished difference Result 127 states and 163 transitions.
[2024-11-02 22:07:28,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-02 22:07:28,825 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103
[2024-11-02 22:07:28,825 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:07:28,827 INFO  L225             Difference]: With dead ends: 127
[2024-11-02 22:07:28,827 INFO  L226             Difference]: Without dead ends: 125
[2024-11-02 22:07:28,828 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420
[2024-11-02 22:07:28,829 INFO  L432           NwaCegarLoop]: 73 mSDtfsCounter, 43 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-02 22:07:28,829 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 295 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-02 22:07:28,830 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 125 states.
[2024-11-02 22:07:28,853 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 109.
[2024-11-02 22:07:28,854 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 109 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28)
[2024-11-02 22:07:28,859 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 145 transitions.
[2024-11-02 22:07:28,859 INFO  L78                 Accepts]: Start accepts. Automaton has 109 states and 145 transitions. Word has length 103
[2024-11-02 22:07:28,859 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:07:28,860 INFO  L471      AbstractCegarLoop]: Abstraction has 109 states and 145 transitions.
[2024-11-02 22:07:28,860 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 22:07:28,860 INFO  L276                IsEmpty]: Start isEmpty. Operand 109 states and 145 transitions.
[2024-11-02 22:07:28,861 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2024-11-02 22:07:28,861 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:07:28,862 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:28,880 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-02 22:07:29,067 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 22:07:29,068 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:07:29,068 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:07:29,068 INFO  L85        PathProgramCache]: Analyzing trace with hash 555810285, now seen corresponding path program 1 times
[2024-11-02 22:07:29,069 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:07:29,069 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619768818]
[2024-11-02 22:07:29,069 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:07:29,069 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:07:29,069 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:07:29,071 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 22:07:29,074 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 22:07:29,133 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:07:29,134 INFO  L255         TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-02 22:07:29,137 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:07:35,768 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked.
[2024-11-02 22:07:35,769 INFO  L311         TraceCheckSpWp]: Computing backward predicates...