/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-50.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 00:59:06,501 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 00:59:06,545 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 00:59:06,548 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 00:59:06,549 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 00:59:06,565 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 00:59:06,565 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 00:59:06,566 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 00:59:06,566 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 00:59:06,566 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 00:59:06,566 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 00:59:06,567 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 00:59:06,567 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 00:59:06,567 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 00:59:06,568 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 00:59:06,568 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 00:59:06,568 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 00:59:06,568 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 00:59:06,568 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 00:59:06,569 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 00:59:06,569 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 00:59:06,572 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 00:59:06,573 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 00:59:06,573 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 00:59:06,573 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 00:59:06,573 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 00:59:06,573 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 00:59:06,574 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 00:59:06,574 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 00:59:06,574 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 00:59:06,574 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 00:59:06,574 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 00:59:06,574 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 00:59:06,574 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 00:59:06,575 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 00:59:06,575 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 00:59:06,575 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 00:59:06,575 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 00:59:06,575 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 00:59:06,575 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 00:59:06,575 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 00:59:06,576 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 00:59:06,576 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 00:59:06,576 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 00:59:06,576 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 00:59:06,745 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 00:59:06,765 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 00:59:06,767 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 00:59:06,768 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 00:59:06,768 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 00:59:06,769 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-50.i
[2024-11-03 00:59:07,947 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 00:59:08,094 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 00:59:08,095 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-50.i
[2024-11-03 00:59:08,105 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7da32cb5/f12048bae232420fb4725ab89bb49a64/FLAGae23ab219
[2024-11-03 00:59:08,506 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7da32cb5/f12048bae232420fb4725ab89bb49a64
[2024-11-03 00:59:08,507 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 00:59:08,508 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 00:59:08,509 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 00:59:08,509 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 00:59:08,513 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 00:59:08,514 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,515 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742b6ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08, skipping insertion in model container
[2024-11-03 00:59:08,515 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,542 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 00:59:08,668 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-50.i[916,929]
[2024-11-03 00:59:08,721 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 00:59:08,733 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 00:59:08,744 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-50.i[916,929]
[2024-11-03 00:59:08,774 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 00:59:08,791 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 00:59:08,791 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08 WrapperNode
[2024-11-03 00:59:08,791 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 00:59:08,792 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 00:59:08,792 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 00:59:08,792 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 00:59:08,797 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,806 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,831 INFO  L138                Inliner]: procedures = 27, calls = 50, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 228
[2024-11-03 00:59:08,832 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 00:59:08,832 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 00:59:08,832 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 00:59:08,832 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 00:59:08,841 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,841 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,848 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,861 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 00:59:08,862 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,862 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,873 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,876 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,877 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,879 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,881 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 00:59:08,882 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 00:59:08,882 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 00:59:08,882 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 00:59:08,883 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08" (1/1) ...
[2024-11-03 00:59:08,891 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 00:59:08,902 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 00:59:08,912 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 00:59:08,914 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 00:59:08,930 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 00:59:08,931 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 00:59:08,931 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 00:59:08,931 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 00:59:08,931 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 00:59:08,931 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 00:59:08,999 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 00:59:09,001 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 00:59:19,624 INFO  L?                        ?]: Removed 32 outVars from TransFormulas that were not future-live.
[2024-11-03 00:59:19,624 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 00:59:19,634 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 00:59:19,635 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 00:59:19,635 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:59:19 BoogieIcfgContainer
[2024-11-03 00:59:19,635 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 00:59:19,637 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 00:59:19,638 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 00:59:19,640 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 00:59:19,640 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:59:08" (1/3) ...
[2024-11-03 00:59:19,641 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42dfc86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:59:19, skipping insertion in model container
[2024-11-03 00:59:19,641 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:59:08" (2/3) ...
[2024-11-03 00:59:19,641 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42dfc86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:59:19, skipping insertion in model container
[2024-11-03 00:59:19,642 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:59:19" (3/3) ...
[2024-11-03 00:59:19,643 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-50.i
[2024-11-03 00:59:19,654 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 00:59:19,654 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 00:59:19,699 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 00:59:19,703 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;@32fe8599, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 00:59:19,703 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 00:59:19,706 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 104 states, 64 states have (on average 1.359375) internal successors, (87), 65 states have internal predecessors, (87), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37)
[2024-11-03 00:59:19,719 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 237
[2024-11-03 00:59:19,719 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:59:19,720 INFO  L215           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:59:19,720 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:59:19,724 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:59:19,724 INFO  L85        PathProgramCache]: Analyzing trace with hash -246797864, now seen corresponding path program 1 times
[2024-11-03 00:59:19,731 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:59:19,731 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747423201]
[2024-11-03 00:59:19,731 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:59:19,734 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:59:19,735 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:59:19,737 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 00:59:19,738 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 00:59:20,255 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:59:20,270 INFO  L255         TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 00:59:20,285 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:59:20,327 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 2592 trivial. 0 not checked.
[2024-11-03 00:59:20,328 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:59:21,992 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 2592 trivial. 0 not checked.
[2024-11-03 00:59:21,993 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:59:21,993 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747423201]
[2024-11-03 00:59:21,993 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1747423201] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:59:21,993 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:59:21,994 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 00:59:21,995 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769588586]
[2024-11-03 00:59:21,995 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:59:21,999 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 00:59:21,999 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:59:22,014 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 00:59:22,014 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 00:59:22,016 INFO  L87              Difference]: Start difference. First operand  has 104 states, 64 states have (on average 1.359375) internal successors, (87), 65 states have internal predecessors, (87), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand  has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 1 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37)
[2024-11-03 00:59:22,038 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:59:22,039 INFO  L93              Difference]: Finished difference Result 201 states and 353 transitions.
[2024-11-03 00:59:22,039 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 00:59:22,040 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 1 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) Word has length 236
[2024-11-03 00:59:22,040 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:59:22,048 INFO  L225             Difference]: With dead ends: 201
[2024-11-03 00:59:22,048 INFO  L226             Difference]: Without dead ends: 100
[2024-11-03 00:59:22,051 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 470 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 00:59:22,054 INFO  L432           NwaCegarLoop]: 154 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, 154 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 00:59:22,056 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 00:59:22,069 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2024-11-03 00:59:22,088 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100.
[2024-11-03 00:59:22,089 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 100 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 61 states have internal predecessors, (80), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37)
[2024-11-03 00:59:22,091 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 154 transitions.
[2024-11-03 00:59:22,092 INFO  L78                 Accepts]: Start accepts. Automaton has 100 states and 154 transitions. Word has length 236
[2024-11-03 00:59:22,092 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:59:22,092 INFO  L471      AbstractCegarLoop]: Abstraction has 100 states and 154 transitions.
[2024-11-03 00:59:22,093 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 1 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37)
[2024-11-03 00:59:22,093 INFO  L276                IsEmpty]: Start isEmpty. Operand 100 states and 154 transitions.
[2024-11-03 00:59:22,096 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 237
[2024-11-03 00:59:22,096 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:59:22,096 INFO  L215           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:59:22,102 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 00:59:22,297 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 00:59:22,298 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:59:22,298 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:59:22,298 INFO  L85        PathProgramCache]: Analyzing trace with hash 552896782, now seen corresponding path program 1 times
[2024-11-03 00:59:22,299 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:59:22,299 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441033781]
[2024-11-03 00:59:22,299 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:59:22,299 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:59:22,299 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:59:22,301 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 00:59:22,302 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 00:59:22,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:59:22,800 INFO  L255         TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 00:59:22,806 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:59:27,598 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked.
[2024-11-03 00:59:27,598 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:59:30,694 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked.
[2024-11-03 00:59:30,694 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:59:30,694 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441033781]
[2024-11-03 00:59:30,695 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1441033781] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:59:30,695 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:59:30,695 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 4
[2024-11-03 00:59:30,695 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292971677]
[2024-11-03 00:59:30,695 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:59:30,696 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 00:59:30,696 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:59:30,697 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 00:59:30,697 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-03 00:59:30,698 INFO  L87              Difference]: Start difference. First operand 100 states and 154 transitions. Second operand  has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74)
[2024-11-03 00:59:35,295 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:59:35,303 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:59:35,303 INFO  L93              Difference]: Finished difference Result 197 states and 305 transitions.
[2024-11-03 00:59:35,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 00:59:35,398 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 236
[2024-11-03 00:59:35,399 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:59:35,401 INFO  L225             Difference]: With dead ends: 197
[2024-11-03 00:59:35,401 INFO  L226             Difference]: Without dead ends: 100
[2024-11-03 00:59:35,402 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-03 00:59:35,403 INFO  L432           NwaCegarLoop]: 143 mSDtfsCounter, 120 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 78 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2024-11-03 00:59:35,403 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 143 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time]
[2024-11-03 00:59:35,404 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2024-11-03 00:59:35,412 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100.
[2024-11-03 00:59:35,413 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 100 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 61 states have internal predecessors, (76), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37)
[2024-11-03 00:59:35,414 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 150 transitions.
[2024-11-03 00:59:35,415 INFO  L78                 Accepts]: Start accepts. Automaton has 100 states and 150 transitions. Word has length 236
[2024-11-03 00:59:35,416 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:59:35,416 INFO  L471      AbstractCegarLoop]: Abstraction has 100 states and 150 transitions.
[2024-11-03 00:59:35,416 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74)
[2024-11-03 00:59:35,416 INFO  L276                IsEmpty]: Start isEmpty. Operand 100 states and 150 transitions.
[2024-11-03 00:59:35,419 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 237
[2024-11-03 00:59:35,419 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:59:35,419 INFO  L215           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:59:35,426 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 00:59:35,619 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 00:59:35,620 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:59:35,620 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:59:35,620 INFO  L85        PathProgramCache]: Analyzing trace with hash -1250694510, now seen corresponding path program 1 times
[2024-11-03 00:59:35,621 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:59:35,621 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556830457]
[2024-11-03 00:59:35,621 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:59:35,621 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:59:35,621 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:59:35,622 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 00:59:35,623 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 00:59:37,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:59:37,349 INFO  L255         TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-03 00:59:37,354 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:00:05,766 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 295 proven. 384 refuted. 0 times theorem prover too weak. 1985 trivial. 0 not checked.
[2024-11-03 01:00:05,767 INFO  L311         TraceCheckSpWp]: Computing backward predicates...