/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_amount50_file-85.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 22:36:49,223 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 22:36:49,310 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 22:36:49,320 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 22:36:49,320 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 22:36:49,356 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 22:36:49,357 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 22:36:49,357 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 22:36:49,358 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 22:36:49,358 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 22:36:49,358 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 22:36:49,359 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 22:36:49,359 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 22:36:49,363 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 22:36:49,363 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 22:36:49,364 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 22:36:49,364 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 22:36:49,364 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 22:36:49,364 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 22:36:49,365 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 22:36:49,365 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 22:36:49,368 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 22:36:49,368 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 22:36:49,368 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 22:36:49,369 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 22:36:49,369 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 22:36:49,369 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 22:36:49,369 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 22:36:49,370 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 22:36:49,370 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 22:36:49,370 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 22:36:49,370 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 22:36:49,371 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 22:36:49,371 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 22:36:49,371 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:36:49,371 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 22:36:49,372 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 22:36:49,372 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 22:36:49,372 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 22:36:49,372 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 22:36:49,373 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 22:36:49,374 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 22:36:49,375 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 22:36:49,375 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 22:36:49,375 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:36:49,620 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 22:36:49,648 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 22:36:49,650 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 22:36:49,652 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 22:36:49,652 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 22:36:49,653 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-85.i
[2024-11-02 22:36:51,178 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 22:36:51,381 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 22:36:51,382 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-85.i
[2024-11-02 22:36:51,398 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56a4403c7/ae5c84c17c264fddb4cb2f48d89e9d2a/FLAG345596133
[2024-11-02 22:36:51,758 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56a4403c7/ae5c84c17c264fddb4cb2f48d89e9d2a
[2024-11-02 22:36:51,760 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 22:36:51,761 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 22:36:51,762 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 22:36:51,762 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 22:36:51,766 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 22:36:51,767 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:36:51" (1/1) ...
[2024-11-02 22:36:51,767 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c1de26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:51, skipping insertion in model container
[2024-11-02 22:36:51,767 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:36:51" (1/1) ...
[2024-11-02 22:36:51,795 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 22:36:51,964 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_amount50_file-85.i[915,928]
[2024-11-02 22:36:52,023 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:36:52,040 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 22:36:52,050 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_amount50_file-85.i[915,928]
[2024-11-02 22:36:52,085 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:36:52,103 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 22:36:52,103 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52 WrapperNode
[2024-11-02 22:36:52,103 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 22:36:52,105 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 22:36:52,105 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 22:36:52,105 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 22:36:52,110 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52" (1/1) ...
[2024-11-02 22:36:52,121 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52" (1/1) ...
[2024-11-02 22:36:52,147 INFO  L138                Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124
[2024-11-02 22:36:52,147 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 22:36:52,148 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 22:36:52,148 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 22:36:52,148 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 22:36:52,160 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52" (1/1) ...
[2024-11-02 22:36:52,160 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52" (1/1) ...
[2024-11-02 22:36:52,168 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52" (1/1) ...
[2024-11-02 22:36:52,185 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 22:36:52,186 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52" (1/1) ...
[2024-11-02 22:36:52,186 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52" (1/1) ...
[2024-11-02 22:36:52,198 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52" (1/1) ...
[2024-11-02 22:36:52,204 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52" (1/1) ...
[2024-11-02 22:36:52,206 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52" (1/1) ...
[2024-11-02 22:36:52,208 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52" (1/1) ...
[2024-11-02 22:36:52,211 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 22:36:52,212 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 22:36:52,212 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 22:36:52,212 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 22:36:52,213 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52" (1/1) ...
[2024-11-02 22:36:52,218 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:36:52,232 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:36:52,253 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 22:36:52,256 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 22:36:52,285 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 22:36:52,285 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 22:36:52,286 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 22:36:52,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 22:36:52,286 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 22:36:52,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 22:36:52,382 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 22:36:52,385 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 22:36:55,471 INFO  L?                        ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-02 22:36:55,471 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 22:36:55,491 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 22:36:55,491 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 22:36:55,492 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:36:55 BoogieIcfgContainer
[2024-11-02 22:36:55,492 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 22:36:55,494 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 22:36:55,495 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 22:36:55,499 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 22:36:55,499 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:36:51" (1/3) ...
[2024-11-02 22:36:55,500 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b579e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:36:55, skipping insertion in model container
[2024-11-02 22:36:55,500 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:52" (2/3) ...
[2024-11-02 22:36:55,501 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b579e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:36:55, skipping insertion in model container
[2024-11-02 22:36:55,501 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:36:55" (3/3) ...
[2024-11-02 22:36:55,503 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-85.i
[2024-11-02 22:36:55,521 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 22:36:55,522 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 22:36:55,573 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 22:36:55,578 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;@5c48f5ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 22:36:55,578 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 22:36:55,581 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 54 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-02 22:36:55,590 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2024-11-02 22:36:55,590 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:36:55,591 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:36:55,591 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:36:55,595 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:36:55,596 INFO  L85        PathProgramCache]: Analyzing trace with hash -1458547587, now seen corresponding path program 1 times
[2024-11-02 22:36:55,603 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:36:55,604 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181814405]
[2024-11-02 22:36:55,604 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:36:55,606 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:36:55,606 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:36:55,608 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 22:36:55,611 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 22:36:55,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:36:55,895 INFO  L255         TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 22:36:55,903 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:36:55,961 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2024-11-02 22:36:55,961 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:36:56,188 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2024-11-02 22:36:56,189 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:36:56,189 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181814405]
[2024-11-02 22:36:56,189 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1181814405] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:36:56,190 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:36:56,190 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 22:36:56,191 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828227234]
[2024-11-02 22:36:56,192 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:36:56,196 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 22:36:56,196 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:36:56,220 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 22:36:56,220 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 22:36:56,223 INFO  L87              Difference]: Start difference. First operand  has 54 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15)
[2024-11-02 22:36:56,251 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:36:56,252 INFO  L93              Difference]: Finished difference Result 101 states and 169 transitions.
[2024-11-02 22:36:56,253 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 22:36:56,255 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101
[2024-11-02 22:36:56,255 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:36:56,264 INFO  L225             Difference]: With dead ends: 101
[2024-11-02 22:36:56,264 INFO  L226             Difference]: Without dead ends: 50
[2024-11-02 22:36:56,269 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 200 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 22:36:56,272 INFO  L432           NwaCegarLoop]: 73 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, 73 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 22:36:56,273 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:36:56,292 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2024-11-02 22:36:56,311 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2024-11-02 22:36:56,312 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 50 states, 33 states have (on average 1.303030303030303) internal successors, (43), 33 states have internal predecessors, (43), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-02 22:36:56,314 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 73 transitions.
[2024-11-02 22:36:56,316 INFO  L78                 Accepts]: Start accepts. Automaton has 50 states and 73 transitions. Word has length 101
[2024-11-02 22:36:56,316 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:36:56,316 INFO  L471      AbstractCegarLoop]: Abstraction has 50 states and 73 transitions.
[2024-11-02 22:36:56,316 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15)
[2024-11-02 22:36:56,317 INFO  L276                IsEmpty]: Start isEmpty. Operand 50 states and 73 transitions.
[2024-11-02 22:36:56,322 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2024-11-02 22:36:56,322 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:36:56,322 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:36:56,356 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 22:36:56,523 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 22:36:56,524 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:36:56,524 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:36:56,524 INFO  L85        PathProgramCache]: Analyzing trace with hash -1039911609, now seen corresponding path program 1 times
[2024-11-02 22:36:56,525 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:36:56,525 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533608420]
[2024-11-02 22:36:56,525 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:36:56,525 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:36:56,525 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:36:56,526 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 22:36:56,528 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 22:36:56,735 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:36:56,754 INFO  L255         TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 22:36:56,760 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:36:57,480 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-02 22:36:57,481 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:36:58,145 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-02 22:36:58,146 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:36:58,146 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533608420]
[2024-11-02 22:36:58,146 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1533608420] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:36:58,146 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:36:58,147 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-02 22:36:58,147 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585483515]
[2024-11-02 22:36:58,147 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:36:58,148 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 22:36:58,148 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:36:58,149 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 22:36:58,150 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-02 22:36:58,150 INFO  L87              Difference]: Start difference. First operand 50 states and 73 transitions. Second operand  has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2024-11-02 22:37:00,988 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:37:01,201 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:37:01,202 INFO  L93              Difference]: Finished difference Result 97 states and 143 transitions.
[2024-11-02 22:37:01,222 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 22:37:01,222 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 101
[2024-11-02 22:37:01,223 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:37:01,224 INFO  L225             Difference]: With dead ends: 97
[2024-11-02 22:37:01,224 INFO  L226             Difference]: Without dead ends: 50
[2024-11-02 22:37:01,225 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-11-02 22:37:01,227 INFO  L432           NwaCegarLoop]: 66 mSDtfsCounter, 132 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-11-02 22:37:01,227 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 134 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-11-02 22:37:01,228 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2024-11-02 22:37:01,236 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2024-11-02 22:37:01,236 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 50 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-02 22:37:01,238 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 72 transitions.
[2024-11-02 22:37:01,238 INFO  L78                 Accepts]: Start accepts. Automaton has 50 states and 72 transitions. Word has length 101
[2024-11-02 22:37:01,240 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:37:01,240 INFO  L471      AbstractCegarLoop]: Abstraction has 50 states and 72 transitions.
[2024-11-02 22:37:01,240 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2024-11-02 22:37:01,240 INFO  L276                IsEmpty]: Start isEmpty. Operand 50 states and 72 transitions.
[2024-11-02 22:37:01,245 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-02 22:37:01,246 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:37:01,246 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:37:01,282 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 22:37:01,447 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 22:37:01,447 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:37:01,448 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:37:01,448 INFO  L85        PathProgramCache]: Analyzing trace with hash 473802101, now seen corresponding path program 1 times
[2024-11-02 22:37:01,448 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:37:01,448 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124097880]
[2024-11-02 22:37:01,449 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:37:01,449 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:37:01,449 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:37:01,450 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 22:37:01,451 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 22:37:01,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:37:01,667 INFO  L255         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-02 22:37:01,672 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:37:02,403 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 68 proven. 39 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked.
[2024-11-02 22:37:02,404 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:37:03,058 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked.
[2024-11-02 22:37:03,059 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:37:03,059 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124097880]
[2024-11-02 22:37:03,059 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2124097880] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 22:37:03,059 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 22:37:03,060 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2024-11-02 22:37:03,060 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655826468]
[2024-11-02 22:37:03,060 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 22:37:03,061 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 22:37:03,061 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:37:03,062 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 22:37:03,062 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-02 22:37:03,062 INFO  L87              Difference]: Start difference. First operand 50 states and 72 transitions. Second operand  has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29)
[2024-11-02 22:37:05,314 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:37:06,141 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:37:06,141 INFO  L93              Difference]: Finished difference Result 147 states and 206 transitions.
[2024-11-02 22:37:06,143 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2024-11-02 22:37:06,143 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 102
[2024-11-02 22:37:06,144 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:37:06,146 INFO  L225             Difference]: With dead ends: 147
[2024-11-02 22:37:06,146 INFO  L226             Difference]: Without dead ends: 100
[2024-11-02 22:37:06,148 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342
[2024-11-02 22:37:06,149 INFO  L432           NwaCegarLoop]: 81 mSDtfsCounter, 63 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-02 22:37:06,150 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 211 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-02 22:37:06,151 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2024-11-02 22:37:06,174 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 54.
[2024-11-02 22:37:06,174 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-02 22:37:06,177 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 74 transitions.
[2024-11-02 22:37:06,178 INFO  L78                 Accepts]: Start accepts. Automaton has 54 states and 74 transitions. Word has length 102
[2024-11-02 22:37:06,180 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:37:06,180 INFO  L471      AbstractCegarLoop]: Abstraction has 54 states and 74 transitions.
[2024-11-02 22:37:06,180 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29)
[2024-11-02 22:37:06,180 INFO  L276                IsEmpty]: Start isEmpty. Operand 54 states and 74 transitions.
[2024-11-02 22:37:06,182 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-02 22:37:06,182 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:37:06,182 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:37:06,221 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 22:37:06,382 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 22:37:06,383 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:37:06,384 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:37:06,384 INFO  L85        PathProgramCache]: Analyzing trace with hash -2046157833, now seen corresponding path program 1 times
[2024-11-02 22:37:06,384 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:37:06,385 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025150322]
[2024-11-02 22:37:06,385 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:37:06,385 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:37:06,385 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:37:06,387 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 22:37:06,389 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 22:37:06,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:37:06,613 INFO  L255         TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-02 22:37:06,621 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:37:06,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 134 proven. 6 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked.
[2024-11-02 22:37:06,883 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:37:07,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked.
[2024-11-02 22:37:07,448 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:37:07,448 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025150322]
[2024-11-02 22:37:07,449 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2025150322] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 22:37:07,449 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 22:37:07,449 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10
[2024-11-02 22:37:07,449 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189839142]
[2024-11-02 22:37:07,449 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 22:37:07,450 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-02 22:37:07,450 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:37:07,451 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-02 22:37:07,451 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2024-11-02 22:37:07,451 INFO  L87              Difference]: Start difference. First operand 54 states and 74 transitions. Second operand  has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-02 22:37:09,319 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:37:11,259 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:37:11,761 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:37:11,762 INFO  L93              Difference]: Finished difference Result 165 states and 219 transitions.
[2024-11-02 22:37:11,762 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2024-11-02 22:37:11,762 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 102
[2024-11-02 22:37:11,763 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:37:11,764 INFO  L225             Difference]: With dead ends: 165
[2024-11-02 22:37:11,765 INFO  L226             Difference]: Without dead ends: 112
[2024-11-02 22:37:11,765 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420
[2024-11-02 22:37:11,766 INFO  L432           NwaCegarLoop]: 49 mSDtfsCounter, 111 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2024-11-02 22:37:11,767 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 156 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2024-11-02 22:37:11,767 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 112 states.
[2024-11-02 22:37:11,785 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 58.
[2024-11-02 22:37:11,786 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 58 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 39 states have internal predecessors, (46), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-02 22:37:11,787 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 76 transitions.
[2024-11-02 22:37:11,787 INFO  L78                 Accepts]: Start accepts. Automaton has 58 states and 76 transitions. Word has length 102
[2024-11-02 22:37:11,787 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:37:11,788 INFO  L471      AbstractCegarLoop]: Abstraction has 58 states and 76 transitions.
[2024-11-02 22:37:11,788 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-02 22:37:11,788 INFO  L276                IsEmpty]: Start isEmpty. Operand 58 states and 76 transitions.
[2024-11-02 22:37:11,789 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-02 22:37:11,789 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:37:11,789 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:37:11,819 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-02 22:37:11,990 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 22:37:11,991 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:37:11,991 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:37:11,991 INFO  L85        PathProgramCache]: Analyzing trace with hash -1366099463, now seen corresponding path program 1 times
[2024-11-02 22:37:11,991 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:37:11,991 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750246691]
[2024-11-02 22:37:11,992 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:37:11,992 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:37:11,992 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:37:11,993 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 22:37:11,994 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 22:37:12,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:37:12,458 INFO  L255         TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-02 22:37:12,463 INFO  L278         TraceCheckSpWp]: Computing forward predicates...