/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-91.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 13:09:27,771 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 13:09:27,850 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 13:09:27,857 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 13:09:27,858 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 13:09:27,890 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 13:09:27,891 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 13:09:27,893 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 13:09:27,894 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 13:09:27,895 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 13:09:27,895 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 13:09:27,895 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 13:09:27,896 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 13:09:27,896 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 13:09:27,897 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 13:09:27,897 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 13:09:27,897 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 13:09:27,898 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 13:09:27,898 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 13:09:27,901 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 13:09:27,901 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 13:09:27,902 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 13:09:27,902 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 13:09:27,902 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 13:09:27,903 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 13:09:27,903 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 13:09:27,903 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 13:09:27,903 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 13:09:27,904 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 13:09:27,904 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 13:09:27,904 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 13:09:27,905 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 13:09:27,905 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 13:09:27,905 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 13:09:27,905 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:09:27,906 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 13:09:27,906 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 13:09:27,906 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 13:09:27,906 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 13:09:27,907 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 13:09:27,907 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 13:09:27,907 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 13:09:27,907 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 13:09:27,907 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 13:09:27,908 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 13:09:28,131 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 13:09:28,156 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 13:09:28,161 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 13:09:28,162 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 13:09:28,162 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 13:09:28,164 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-91.i
[2024-11-03 13:09:29,631 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 13:09:29,828 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 13:09:29,829 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-91.i
[2024-11-03 13:09:29,836 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b580913b6/da996ecf6253496d8624f4d9c26e66dc/FLAG62d6ca190
[2024-11-03 13:09:29,850 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b580913b6/da996ecf6253496d8624f4d9c26e66dc
[2024-11-03 13:09:29,852 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 13:09:29,854 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 13:09:29,855 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 13:09:29,855 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 13:09:29,859 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 13:09:29,860 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:09:29" (1/1) ...
[2024-11-03 13:09:29,861 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1419cf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:29, skipping insertion in model container
[2024-11-03 13:09:29,861 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:09:29" (1/1) ...
[2024-11-03 13:09:29,881 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 13:09:30,034 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-91.i[915,928]
[2024-11-03 13:09:30,093 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:09:30,111 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 13:09:30,121 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-91.i[915,928]
[2024-11-03 13:09:30,135 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:09:30,155 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 13:09:30,155 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30 WrapperNode
[2024-11-03 13:09:30,155 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 13:09:30,156 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 13:09:30,156 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 13:09:30,157 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 13:09:30,162 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30" (1/1) ...
[2024-11-03 13:09:30,171 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30" (1/1) ...
[2024-11-03 13:09:30,196 INFO  L138                Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90
[2024-11-03 13:09:30,197 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 13:09:30,197 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 13:09:30,197 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 13:09:30,197 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 13:09:30,207 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30" (1/1) ...
[2024-11-03 13:09:30,207 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30" (1/1) ...
[2024-11-03 13:09:30,210 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30" (1/1) ...
[2024-11-03 13:09:30,222 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-03 13:09:30,223 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30" (1/1) ...
[2024-11-03 13:09:30,223 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30" (1/1) ...
[2024-11-03 13:09:30,230 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30" (1/1) ...
[2024-11-03 13:09:30,233 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30" (1/1) ...
[2024-11-03 13:09:30,235 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30" (1/1) ...
[2024-11-03 13:09:30,237 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30" (1/1) ...
[2024-11-03 13:09:30,240 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 13:09:30,241 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 13:09:30,241 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 13:09:30,241 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 13:09:30,242 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30" (1/1) ...
[2024-11-03 13:09:30,247 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:09:30,267 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 13:09:30,284 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-03 13:09:30,291 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-03 13:09:30,315 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 13:09:30,315 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 13:09:30,315 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 13:09:30,315 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 13:09:30,315 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 13:09:30,317 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 13:09:30,387 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 13:09:30,389 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 13:09:30,711 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-03 13:09:30,712 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 13:09:30,725 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 13:09:30,725 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 13:09:30,726 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:09:30 BoogieIcfgContainer
[2024-11-03 13:09:30,726 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 13:09:30,728 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 13:09:30,728 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 13:09:30,730 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 13:09:30,731 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:09:29" (1/3) ...
[2024-11-03 13:09:30,731 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9e1f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:09:30, skipping insertion in model container
[2024-11-03 13:09:30,731 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:30" (2/3) ...
[2024-11-03 13:09:30,731 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9e1f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:09:30, skipping insertion in model container
[2024-11-03 13:09:30,732 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:09:30" (3/3) ...
[2024-11-03 13:09:30,733 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-91.i
[2024-11-03 13:09:30,747 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 13:09:30,748 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 13:09:30,802 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 13:09:30,809 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;@6a8f1788, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 13:09:30,809 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 13:09:30,815 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 42 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-03 13:09:30,829 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2024-11-03 13:09:30,829 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:09:30,848 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:09:30,849 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:09:30,854 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:09:30,855 INFO  L85        PathProgramCache]: Analyzing trace with hash 1820528867, now seen corresponding path program 1 times
[2024-11-03 13:09:30,864 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:09:30,865 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430930397]
[2024-11-03 13:09:30,865 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:09:30,867 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:09:30,867 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:09:30,869 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:09:30,871 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 13:09:31,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:09:31,033 INFO  L255         TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-03 13:09:31,048 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:09:33,620 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-03 13:09:33,620 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:09:59,787 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-03 13:09:59,788 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:09:59,788 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430930397]
[2024-11-03 13:09:59,789 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [430930397] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:09:59,789 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:09:59,789 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15
[2024-11-03 13:09:59,791 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532321025]
[2024-11-03 13:09:59,791 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:09:59,795 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-03 13:09:59,796 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:09:59,813 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-03 13:09:59,814 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210
[2024-11-03 13:09:59,816 INFO  L87              Difference]: Start difference. First operand  has 42 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand  has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-03 13:10:11,538 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:10:11,539 INFO  L93              Difference]: Finished difference Result 167 states and 283 transitions.
[2024-11-03 13:10:11,543 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2024-11-03 13:10:11,544 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 73
[2024-11-03 13:10:11,545 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:10:11,551 INFO  L225             Difference]: With dead ends: 167
[2024-11-03 13:10:11,552 INFO  L226             Difference]: Without dead ends: 128
[2024-11-03 13:10:11,555 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462
[2024-11-03 13:10:11,558 INFO  L432           NwaCegarLoop]: 71 mSDtfsCounter, 194 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2024-11-03 13:10:11,560 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 291 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2024-11-03 13:10:11,573 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2024-11-03 13:10:11,602 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 70.
[2024-11-03 13:10:11,604 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 70 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 46 states have internal predecessors, (53), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 13:10:11,605 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 93 transitions.
[2024-11-03 13:10:11,608 INFO  L78                 Accepts]: Start accepts. Automaton has 70 states and 93 transitions. Word has length 73
[2024-11-03 13:10:11,608 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:10:11,609 INFO  L471      AbstractCegarLoop]: Abstraction has 70 states and 93 transitions.
[2024-11-03 13:10:11,609 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-03 13:10:11,609 INFO  L276                IsEmpty]: Start isEmpty. Operand 70 states and 93 transitions.
[2024-11-03 13:10:11,615 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2024-11-03 13:10:11,616 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:10:11,616 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:10:11,631 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 13:10:11,816 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:10:11,817 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:10:11,818 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:10:11,818 INFO  L85        PathProgramCache]: Analyzing trace with hash 1877787169, now seen corresponding path program 1 times
[2024-11-03 13:10:11,818 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:10:11,819 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904265627]
[2024-11-03 13:10:11,819 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:10:11,819 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:10:11,819 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:10:11,820 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:10:11,821 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 13:10:11,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:10:11,876 INFO  L255         TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-03 13:10:11,881 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:10:16,533 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-03 13:10:16,534 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:10:43,235 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-11-03 13:10:43,235 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:10:43,235 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904265627]
[2024-11-03 13:10:43,235 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1904265627] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 13:10:43,236 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 13:10:43,236 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21
[2024-11-03 13:10:43,236 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796715689]
[2024-11-03 13:10:43,236 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 13:10:43,238 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-11-03 13:10:43,238 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:10:43,239 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-11-03 13:10:43,239 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420
[2024-11-03 13:10:43,239 INFO  L87              Difference]: Start difference. First operand 70 states and 93 transitions. Second operand  has 21 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 4 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22)
[2024-11-03 13:11:05,453 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:11:05,453 INFO  L93              Difference]: Finished difference Result 169 states and 214 transitions.
[2024-11-03 13:11:05,456 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. 
[2024-11-03 13:11:05,456 INFO  L78                 Accepts]: Start accepts. Automaton has  has 21 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 4 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 73
[2024-11-03 13:11:05,456 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:11:05,460 INFO  L225             Difference]: With dead ends: 169
[2024-11-03 13:11:05,461 INFO  L226             Difference]: Without dead ends: 167
[2024-11-03 13:11:05,463 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=353, Invalid=979, Unknown=0, NotChecked=0, Total=1332
[2024-11-03 13:11:05,464 INFO  L432           NwaCegarLoop]: 64 mSDtfsCounter, 208 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2024-11-03 13:11:05,465 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 327 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2024-11-03 13:11:05,467 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 167 states.
[2024-11-03 13:11:05,488 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 95.
[2024-11-03 13:11:05,489 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 95 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 66 states have internal predecessors, (80), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-03 13:11:05,490 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 124 transitions.
[2024-11-03 13:11:05,490 INFO  L78                 Accepts]: Start accepts. Automaton has 95 states and 124 transitions. Word has length 73
[2024-11-03 13:11:05,491 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:11:05,491 INFO  L471      AbstractCegarLoop]: Abstraction has 95 states and 124 transitions.
[2024-11-03 13:11:05,491 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 21 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 4 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22)
[2024-11-03 13:11:05,491 INFO  L276                IsEmpty]: Start isEmpty. Operand 95 states and 124 transitions.
[2024-11-03 13:11:05,492 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-03 13:11:05,492 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:11:05,492 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:11:05,499 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0
[2024-11-03 13:11:05,695 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:11:05,696 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:11:05,697 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:11:05,697 INFO  L85        PathProgramCache]: Analyzing trace with hash 366259724, now seen corresponding path program 1 times
[2024-11-03 13:11:05,697 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:11:05,697 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108745619]
[2024-11-03 13:11:05,697 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:11:05,698 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:11:05,698 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:11:05,699 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:11:05,700 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 13:11:05,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:11:05,763 INFO  L255         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-03 13:11:05,766 INFO  L278         TraceCheckSpWp]: Computing forward predicates...