/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 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-7.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:01:45,072 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:01:45,148 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 01:01:45,154 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:01:45,155 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:01:45,193 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:01:45,195 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:01:45,195 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:01:45,196 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:01:45,197 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:01:45,197 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:01:45,197 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:01:45,198 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:01:45,198 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:01:45,198 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:01:45,199 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:01:45,199 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:01:45,202 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:01:45,203 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:01:45,203 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:01:45,203 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:01:45,207 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:01:45,208 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:01:45,208 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:01:45,208 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:01:45,208 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:01:45,208 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:01:45,209 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:01:45,209 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:01:45,209 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:01:45,209 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:01:45,209 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:01:45,210 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:01:45,210 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:01:45,210 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:01:45,210 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:01:45,210 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:01:45,211 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:01:45,211 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:01:45,211 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:01:45,211 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:01:45,212 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:01:45,212 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:01:45,212 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:01:45,212 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:01:45,441 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:01:45,465 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:01:45,468 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:01:45,469 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:01:45,470 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:01:45,471 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-7.i
[2024-11-03 01:01:46,906 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:01:47,114 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:01:47,118 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-7.i
[2024-11-03 01:01:47,134 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/053b514d1/557bd45856bc4d2a9d8638707453c908/FLAGa1fe4d23f
[2024-11-03 01:01:47,148 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/053b514d1/557bd45856bc4d2a9d8638707453c908
[2024-11-03 01:01:47,151 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:01:47,152 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:01:47,154 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:01:47,154 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:01:47,159 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:01:47,160 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,160 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30afd8b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47, skipping insertion in model container
[2024-11-03 01:01:47,160 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,189 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:01:47,357 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-7.i[915,928]
[2024-11-03 01:01:47,439 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:01:47,452 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:01:47,469 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-7.i[915,928]
[2024-11-03 01:01:47,523 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:01:47,542 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:01:47,543 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47 WrapperNode
[2024-11-03 01:01:47,543 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:01:47,544 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:01:47,545 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:01:47,545 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:01:47,551 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,568 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,597 INFO  L138                Inliner]: procedures = 27, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 219
[2024-11-03 01:01:47,598 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:01:47,599 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:01:47,599 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:01:47,599 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:01:47,615 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,615 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,622 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,647 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 01:01:47,648 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,648 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,659 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,665 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,668 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,671 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,675 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:01:47,676 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:01:47,677 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:01:47,677 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:01:47,678 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47" (1/1) ...
[2024-11-03 01:01:47,687 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:01:47,702 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:01:47,720 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 01:01:47,727 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 01:01:47,756 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:01:47,756 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:01:47,757 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:01:47,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:01:47,757 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:01:47,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:01:47,852 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:01:47,855 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:01:52,101 INFO  L?                        ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-03 01:01:52,102 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:01:52,116 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:01:52,117 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:01:52,117 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:01:52 BoogieIcfgContainer
[2024-11-03 01:01:52,117 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:01:52,119 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:01:52,120 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:01:52,122 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:01:52,123 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:01:47" (1/3) ...
[2024-11-03 01:01:52,123 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce706b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:01:52, skipping insertion in model container
[2024-11-03 01:01:52,123 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:47" (2/3) ...
[2024-11-03 01:01:52,124 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce706b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:01:52, skipping insertion in model container
[2024-11-03 01:01:52,124 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:01:52" (3/3) ...
[2024-11-03 01:01:52,125 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-7.i
[2024-11-03 01:01:52,140 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:01:52,140 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:01:52,197 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:01:52,203 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;@1d2b257c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:01:52,203 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:01:52,208 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 98 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 61 states have internal predecessors, (85), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2024-11-03 01:01:52,224 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2024-11-03 01:01:52,225 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:01:52,226 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:01:52,226 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:01:52,231 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:01:52,231 INFO  L85        PathProgramCache]: Analyzing trace with hash 593155967, now seen corresponding path program 1 times
[2024-11-03 01:01:52,240 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:01:52,241 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558929546]
[2024-11-03 01:01:52,241 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:01:52,243 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:01:52,243 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:01:52,246 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:01:52,248 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 01:01:52,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:01:53,010 INFO  L255         TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:01:53,021 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:01:53,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2024-11-03 01:01:53,096 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:01:53,746 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2024-11-03 01:01:53,747 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:01:53,748 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558929546]
[2024-11-03 01:01:53,748 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1558929546] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:01:53,748 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:01:53,749 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:01:53,751 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040955426]
[2024-11-03 01:01:53,752 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:01:53,756 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:01:53,757 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:01:53,783 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:01:53,783 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:01:53,786 INFO  L87              Difference]: Start difference. First operand  has 98 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 61 states have internal predecessors, (85), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2024-11-03 01:01:53,822 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:01:53,823 INFO  L93              Difference]: Finished difference Result 189 states and 339 transitions.
[2024-11-03 01:01:53,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:01:53,825 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 220
[2024-11-03 01:01:53,825 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:01:53,832 INFO  L225             Difference]: With dead ends: 189
[2024-11-03 01:01:53,833 INFO  L226             Difference]: Without dead ends: 94
[2024-11-03 01:01:53,836 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:01:53,840 INFO  L432           NwaCegarLoop]: 144 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, 144 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
[2024-11-03 01:01:53,841 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:01:53,862 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2024-11-03 01:01:53,893 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94.
[2024-11-03 01:01:53,895 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 94 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 57 states have internal predecessors, (74), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2024-11-03 01:01:53,897 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 144 transitions.
[2024-11-03 01:01:53,900 INFO  L78                 Accepts]: Start accepts. Automaton has 94 states and 144 transitions. Word has length 220
[2024-11-03 01:01:53,901 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:01:53,901 INFO  L471      AbstractCegarLoop]: Abstraction has 94 states and 144 transitions.
[2024-11-03 01:01:53,901 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2024-11-03 01:01:53,902 INFO  L276                IsEmpty]: Start isEmpty. Operand 94 states and 144 transitions.
[2024-11-03 01:01:53,907 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 222
[2024-11-03 01:01:53,907 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:01:53,908 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:01:53,917 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0
[2024-11-03 01:01:54,109 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:01:54,110 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:01:54,111 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:01:54,111 INFO  L85        PathProgramCache]: Analyzing trace with hash 58929407, now seen corresponding path program 1 times
[2024-11-03 01:01:54,111 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:01:54,111 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50711390]
[2024-11-03 01:01:54,111 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:01:54,112 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:01:54,112 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:01:54,115 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:01:54,116 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 01:01:55,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:01:55,581 INFO  L255         TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 01:01:55,590 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:01:57,416 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2024-11-03 01:01:57,416 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:01:58,268 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2024-11-03 01:01:58,268 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:01:58,268 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50711390]
[2024-11-03 01:01:58,269 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [50711390] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:01:58,269 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:01:58,269 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-03 01:01:58,269 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917803787]
[2024-11-03 01:01:58,269 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:01:58,271 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-03 01:01:58,271 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:01:58,272 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-03 01:01:58,272 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-03 01:01:58,273 INFO  L87              Difference]: Start difference. First operand 94 states and 144 transitions. Second operand  has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70)
[2024-11-03 01:02:02,464 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:02:05,583 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:02:05,667 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:02:05,667 INFO  L93              Difference]: Finished difference Result 306 states and 470 transitions.
[2024-11-03 01:02:05,705 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 01:02:05,706 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 221
[2024-11-03 01:02:05,707 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:02:05,710 INFO  L225             Difference]: With dead ends: 306
[2024-11-03 01:02:05,711 INFO  L226             Difference]: Without dead ends: 215
[2024-11-03 01:02:05,712 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 01:02:05,715 INFO  L432           NwaCegarLoop]: 141 mSDtfsCounter, 176 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time
[2024-11-03 01:02:05,715 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 611 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time]
[2024-11-03 01:02:05,716 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 215 states.
[2024-11-03 01:02:05,770 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 156.
[2024-11-03 01:02:05,770 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 156 states, 83 states have (on average 1.2048192771084338) internal successors, (100), 83 states have internal predecessors, (100), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2024-11-03 01:02:05,772 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 240 transitions.
[2024-11-03 01:02:05,773 INFO  L78                 Accepts]: Start accepts. Automaton has 156 states and 240 transitions. Word has length 221
[2024-11-03 01:02:05,774 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:02:05,774 INFO  L471      AbstractCegarLoop]: Abstraction has 156 states and 240 transitions.
[2024-11-03 01:02:05,775 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70)
[2024-11-03 01:02:05,775 INFO  L276                IsEmpty]: Start isEmpty. Operand 156 states and 240 transitions.
[2024-11-03 01:02:05,778 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 223
[2024-11-03 01:02:05,778 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:02:05,778 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:05,799 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0
[2024-11-03 01:02:05,979 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:02:05,980 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:02:05,980 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:02:05,980 INFO  L85        PathProgramCache]: Analyzing trace with hash -956131076, now seen corresponding path program 1 times
[2024-11-03 01:02:05,981 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:02:05,981 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581985243]
[2024-11-03 01:02:05,981 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:02:05,981 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:02:05,981 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:02:05,983 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:02:05,984 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 01:02:07,334 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:02:07,355 INFO  L255         TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:02:07,360 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:02:07,472 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2024-11-03 01:02:07,473 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:02:08,134 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2024-11-03 01:02:08,134 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:02:08,134 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581985243]
[2024-11-03 01:02:08,134 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [581985243] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:02:08,135 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:02:08,135 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-03 01:02:08,135 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265530759]
[2024-11-03 01:02:08,135 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:02:08,136 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 01:02:08,136 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:02:08,136 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 01:02:08,137 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 01:02:08,137 INFO  L87              Difference]: Start difference. First operand 156 states and 240 transitions. Second operand  has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2024-11-03 01:02:13,089 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:02:13,316 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:02:13,316 INFO  L93              Difference]: Finished difference Result 341 states and 529 transitions.
[2024-11-03 01:02:13,317 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 01:02:13,317 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 222
[2024-11-03 01:02:13,318 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:02:13,321 INFO  L225             Difference]: With dead ends: 341
[2024-11-03 01:02:13,321 INFO  L226             Difference]: Without dead ends: 250
[2024-11-03 01:02:13,322 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 01:02:13,323 INFO  L432           NwaCegarLoop]: 247 mSDtfsCounter, 260 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2024-11-03 01:02:13,323 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 414 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time]
[2024-11-03 01:02:13,324 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 250 states.
[2024-11-03 01:02:13,353 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 172.
[2024-11-03 01:02:13,354 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 172 states, 99 states have (on average 1.2424242424242424) internal successors, (123), 99 states have internal predecessors, (123), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2024-11-03 01:02:13,355 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 263 transitions.
[2024-11-03 01:02:13,356 INFO  L78                 Accepts]: Start accepts. Automaton has 172 states and 263 transitions. Word has length 222
[2024-11-03 01:02:13,357 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:02:13,357 INFO  L471      AbstractCegarLoop]: Abstraction has 172 states and 263 transitions.
[2024-11-03 01:02:13,357 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2024-11-03 01:02:13,357 INFO  L276                IsEmpty]: Start isEmpty. Operand 172 states and 263 transitions.
[2024-11-03 01:02:13,360 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 223
[2024-11-03 01:02:13,360 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:02:13,360 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:13,380 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0
[2024-11-03 01:02:13,560 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:02:13,561 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:02:13,562 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:02:13,562 INFO  L85        PathProgramCache]: Analyzing trace with hash 2024273916, now seen corresponding path program 1 times
[2024-11-03 01:02:13,562 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:02:13,563 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482793823]
[2024-11-03 01:02:13,563 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:02:13,563 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:02:13,563 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:02:13,566 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:02:13,568 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 01:02:17,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:02:17,705 INFO  L255         TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 63 conjuncts are in the unsatisfiable core
[2024-11-03 01:02:17,718 INFO  L278         TraceCheckSpWp]: Computing forward predicates...