/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_floatingpointinfluence_no-floats_file-64.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 00:48:48,105 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 00:48:48,191 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 00:48:48,196 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 00:48:48,197 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 00:48:48,218 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 00:48:48,219 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 00:48:48,219 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 00:48:48,219 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 00:48:48,220 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 00:48:48,221 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 00:48:48,222 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 00:48:48,223 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 00:48:48,227 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 00:48:48,227 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 00:48:48,227 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 00:48:48,228 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 00:48:48,228 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 00:48:48,228 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 00:48:48,229 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 00:48:48,229 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 00:48:48,229 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 00:48:48,230 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 00:48:48,230 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 00:48:48,230 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 00:48:48,230 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 00:48:48,231 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 00:48:48,231 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 00:48:48,231 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 00:48:48,231 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 00:48:48,232 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 00:48:48,232 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 00:48:48,232 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 00:48:48,233 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 00:48:48,233 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 00:48:48,236 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 00:48:48,236 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 00:48:48,236 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 00:48:48,236 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 00:48:48,236 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 00:48:48,237 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 00:48:48,237 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 00:48:48,237 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 00:48:48,237 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 00:48:48,238 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 00:48:48,478 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 00:48:48,501 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 00:48:48,503 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 00:48:48,504 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 00:48:48,505 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 00:48:48,506 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-64.i
[2024-11-03 00:48:49,949 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 00:48:50,122 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 00:48:50,123 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-64.i
[2024-11-03 00:48:50,129 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b922b4456/bc5a2bc86fe14a81ad2c24bda45c9847/FLAG40840ff04
[2024-11-03 00:48:50,520 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b922b4456/bc5a2bc86fe14a81ad2c24bda45c9847
[2024-11-03 00:48:50,523 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 00:48:50,524 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 00:48:50,525 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 00:48:50,525 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 00:48:50,533 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 00:48:50,533 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,534 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@654405cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50, skipping insertion in model container
[2024-11-03 00:48:50,535 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,555 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 00:48:50,700 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_floatingpointinfluence_no-floats_file-64.i[916,929]
[2024-11-03 00:48:50,735 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 00:48:50,755 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 00:48:50,766 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_floatingpointinfluence_no-floats_file-64.i[916,929]
[2024-11-03 00:48:50,790 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 00:48:50,811 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 00:48:50,812 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50 WrapperNode
[2024-11-03 00:48:50,812 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 00:48:50,813 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 00:48:50,813 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 00:48:50,813 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 00:48:50,818 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,827 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,847 INFO  L138                Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126
[2024-11-03 00:48:50,848 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 00:48:50,848 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 00:48:50,848 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 00:48:50,849 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 00:48:50,858 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,858 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,862 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,880 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 00:48:50,881 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,881 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,888 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,891 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,893 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,894 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,897 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 00:48:50,898 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 00:48:50,898 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 00:48:50,898 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 00:48:50,899 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50" (1/1) ...
[2024-11-03 00:48:50,905 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 00:48:50,916 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 00:48:50,932 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 00:48:50,935 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 00:48:50,960 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 00:48:50,961 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 00:48:50,961 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 00:48:50,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 00:48:50,961 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 00:48:50,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 00:48:51,034 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 00:48:51,035 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 00:48:51,474 INFO  L?                        ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-03 00:48:51,474 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 00:48:51,489 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 00:48:51,489 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 00:48:51,490 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:48:51 BoogieIcfgContainer
[2024-11-03 00:48:51,490 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 00:48:51,492 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 00:48:51,492 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 00:48:51,495 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 00:48:51,495 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:48:50" (1/3) ...
[2024-11-03 00:48:51,496 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c89955c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:48:51, skipping insertion in model container
[2024-11-03 00:48:51,496 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:50" (2/3) ...
[2024-11-03 00:48:51,496 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c89955c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:48:51, skipping insertion in model container
[2024-11-03 00:48:51,497 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:48:51" (3/3) ...
[2024-11-03 00:48:51,498 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-64.i
[2024-11-03 00:48:51,513 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 00:48:51,513 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 00:48:51,577 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 00:48:51,582 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;@2b38b853, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 00:48:51,582 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 00:48:51,586 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 63 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 00:48:51,600 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 146
[2024-11-03 00:48:51,601 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:48:51,602 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:48:51,602 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:48:51,608 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:48:51,609 INFO  L85        PathProgramCache]: Analyzing trace with hash -766407730, now seen corresponding path program 1 times
[2024-11-03 00:48:51,617 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:48:51,618 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109720004]
[2024-11-03 00:48:51,618 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:48:51,622 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:48:51,622 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:48:51,625 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 00:48:51,627 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 00:48:51,862 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:48:51,868 INFO  L255         TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 00:48:51,882 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:48:51,937 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 00:48:51,937 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:48:52,105 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 00:48:52,106 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:48:52,107 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109720004]
[2024-11-03 00:48:52,107 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2109720004] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:48:52,107 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:48:52,108 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 00:48:52,109 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849409388]
[2024-11-03 00:48:52,110 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:48:52,116 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 00:48:52,117 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:48:52,143 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 00:48:52,144 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 00:48:52,146 INFO  L87              Difference]: Start difference. First operand  has 63 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2024-11-03 00:48:52,179 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:48:52,179 INFO  L93              Difference]: Finished difference Result 119 states and 212 transitions.
[2024-11-03 00:48:52,181 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 00:48:52,182 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 145
[2024-11-03 00:48:52,182 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:48:52,190 INFO  L225             Difference]: With dead ends: 119
[2024-11-03 00:48:52,190 INFO  L226             Difference]: Without dead ends: 59
[2024-11-03 00:48:52,194 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 288 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 00:48:52,197 INFO  L432           NwaCegarLoop]: 89 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, 89 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 00:48:52,198 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 00:48:52,221 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2024-11-03 00:48:52,250 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59.
[2024-11-03 00:48:52,253 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 00:48:52,255 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 89 transitions.
[2024-11-03 00:48:52,258 INFO  L78                 Accepts]: Start accepts. Automaton has 59 states and 89 transitions. Word has length 145
[2024-11-03 00:48:52,258 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:48:52,258 INFO  L471      AbstractCegarLoop]: Abstraction has 59 states and 89 transitions.
[2024-11-03 00:48:52,259 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2024-11-03 00:48:52,259 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 89 transitions.
[2024-11-03 00:48:52,262 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 146
[2024-11-03 00:48:52,262 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:48:52,262 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:48:52,266 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 00:48:52,463 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 00:48:52,463 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:48:52,464 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:48:52,464 INFO  L85        PathProgramCache]: Analyzing trace with hash 1694646600, now seen corresponding path program 1 times
[2024-11-03 00:48:52,465 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:48:52,465 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614299438]
[2024-11-03 00:48:52,465 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:48:52,465 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:48:52,465 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:48:52,467 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 00:48:52,468 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 00:48:52,785 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:48:52,788 INFO  L255         TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-03 00:48:52,805 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:49:03,894 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 00:49:03,894 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:49:14,226 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 00:49:14,227 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:49:14,227 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614299438]
[2024-11-03 00:49:14,227 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [614299438] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:49:14,227 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:49:14,228 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 16
[2024-11-03 00:49:14,228 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680776227]
[2024-11-03 00:49:14,228 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:49:14,230 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-03 00:49:14,230 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:49:14,231 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-03 00:49:14,231 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240
[2024-11-03 00:49:14,232 INFO  L87              Difference]: Start difference. First operand 59 states and 89 transitions. Second operand  has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48)
[2024-11-03 00:49:17,530 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:49:17,531 INFO  L93              Difference]: Finished difference Result 210 states and 312 transitions.
[2024-11-03 00:49:17,531 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2024-11-03 00:49:17,532 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 145
[2024-11-03 00:49:17,533 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:49:17,535 INFO  L225             Difference]: With dead ends: 210
[2024-11-03 00:49:17,535 INFO  L226             Difference]: Without dead ends: 154
[2024-11-03 00:49:17,536 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506
[2024-11-03 00:49:17,537 INFO  L432           NwaCegarLoop]: 77 mSDtfsCounter, 154 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-03 00:49:17,538 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 551 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-03 00:49:17,539 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 154 states.
[2024-11-03 00:49:17,550 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 68.
[2024-11-03 00:49:17,550 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 68 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 42 states have internal predecessors, (53), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 00:49:17,551 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 101 transitions.
[2024-11-03 00:49:17,552 INFO  L78                 Accepts]: Start accepts. Automaton has 68 states and 101 transitions. Word has length 145
[2024-11-03 00:49:17,556 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:49:17,556 INFO  L471      AbstractCegarLoop]: Abstraction has 68 states and 101 transitions.
[2024-11-03 00:49:17,556 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48)
[2024-11-03 00:49:17,557 INFO  L276                IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions.
[2024-11-03 00:49:17,560 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2024-11-03 00:49:17,560 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:49:17,561 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:17,570 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0
[2024-11-03 00:49:17,762 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 00:49:17,763 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:49:17,763 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:49:17,764 INFO  L85        PathProgramCache]: Analyzing trace with hash 760723816, now seen corresponding path program 1 times
[2024-11-03 00:49:17,764 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:49:17,764 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279032213]
[2024-11-03 00:49:17,764 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:49:17,764 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:49:17,764 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:49:17,767 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 00:49:17,768 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 00:49:17,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:49:17,876 INFO  L255         TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 00:49:17,880 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:49:18,123 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 00:49:18,123 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:49:18,290 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 00:49:18,291 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:49:18,291 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [279032213]
[2024-11-03 00:49:18,291 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [279032213] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:49:18,291 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:49:18,292 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3
[2024-11-03 00:49:18,292 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152642118]
[2024-11-03 00:49:18,292 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:49:18,293 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 00:49:18,293 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:49:18,294 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 00:49:18,294 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 00:49:18,294 INFO  L87              Difference]: Start difference. First operand 68 states and 101 transitions. Second operand  has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48)
[2024-11-03 00:49:18,335 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:49:18,336 INFO  L93              Difference]: Finished difference Result 132 states and 197 transitions.
[2024-11-03 00:49:18,346 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 00:49:18,346 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 146
[2024-11-03 00:49:18,347 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:49:18,348 INFO  L225             Difference]: With dead ends: 132
[2024-11-03 00:49:18,348 INFO  L226             Difference]: Without dead ends: 67
[2024-11-03 00:49:18,349 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 00:49:18,350 INFO  L432           NwaCegarLoop]: 82 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 00:49:18,350 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 82 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 00:49:18,351 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 67 states.
[2024-11-03 00:49:18,358 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66.
[2024-11-03 00:49:18,359 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 66 states, 40 states have (on average 1.15) internal successors, (46), 40 states have internal predecessors, (46), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 00:49:18,360 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 94 transitions.
[2024-11-03 00:49:18,360 INFO  L78                 Accepts]: Start accepts. Automaton has 66 states and 94 transitions. Word has length 146
[2024-11-03 00:49:18,361 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:49:18,361 INFO  L471      AbstractCegarLoop]: Abstraction has 66 states and 94 transitions.
[2024-11-03 00:49:18,361 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48)
[2024-11-03 00:49:18,361 INFO  L276                IsEmpty]: Start isEmpty. Operand 66 states and 94 transitions.
[2024-11-03 00:49:18,364 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2024-11-03 00:49:18,364 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:49:18,364 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:18,371 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-03 00:49:18,565 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 00:49:18,566 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:49:18,566 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:49:18,566 INFO  L85        PathProgramCache]: Analyzing trace with hash 2124128555, now seen corresponding path program 1 times
[2024-11-03 00:49:18,567 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:49:18,567 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447112803]
[2024-11-03 00:49:18,567 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:49:18,567 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:49:18,567 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:49:18,570 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 00:49:18,571 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 00:49:18,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:49:18,826 INFO  L255         TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-03 00:49:18,832 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:49:26,860 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 00:49:26,860 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:50:00,564 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 00:50:00,565 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:50:00,565 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447112803]
[2024-11-03 00:50:00,565 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [447112803] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:50:00,565 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:50:00,565 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13
[2024-11-03 00:50:00,566 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198646643]
[2024-11-03 00:50:00,566 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:50:00,566 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-03 00:50:00,566 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:50:00,567 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-03 00:50:00,569 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156
[2024-11-03 00:50:00,569 INFO  L87              Difference]: Start difference. First operand 66 states and 94 transitions. Second operand  has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2024-11-03 00:50:06,602 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:50:06,602 INFO  L93              Difference]: Finished difference Result 98 states and 130 transitions.
[2024-11-03 00:50:06,605 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2024-11-03 00:50:06,606 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 146
[2024-11-03 00:50:06,606 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:50:06,608 INFO  L225             Difference]: With dead ends: 98
[2024-11-03 00:50:06,608 INFO  L226             Difference]: Without dead ends: 96
[2024-11-03 00:50:06,608 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272
[2024-11-03 00:50:06,609 INFO  L432           NwaCegarLoop]: 90 mSDtfsCounter, 46 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-03 00:50:06,609 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 572 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-03 00:50:06,610 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 96 states.
[2024-11-03 00:50:06,625 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 83.
[2024-11-03 00:50:06,626 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 83 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 55 states have internal predecessors, (61), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-03 00:50:06,627 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 113 transitions.
[2024-11-03 00:50:06,627 INFO  L78                 Accepts]: Start accepts. Automaton has 83 states and 113 transitions. Word has length 146
[2024-11-03 00:50:06,628 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:50:06,628 INFO  L471      AbstractCegarLoop]: Abstraction has 83 states and 113 transitions.
[2024-11-03 00:50:06,628 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2024-11-03 00:50:06,629 INFO  L276                IsEmpty]: Start isEmpty. Operand 83 states and 113 transitions.
[2024-11-03 00:50:06,630 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2024-11-03 00:50:06,631 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:50:06,631 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:50:06,638 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0
[2024-11-03 00:50:06,831 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 00:50:06,832 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:50:06,832 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:50:06,833 INFO  L85        PathProgramCache]: Analyzing trace with hash -1793484961, now seen corresponding path program 1 times
[2024-11-03 00:50:06,833 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:50:06,833 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379274647]
[2024-11-03 00:50:06,833 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:50:06,833 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:50:06,834 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:50:06,835 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 00:50:06,836 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2024-11-03 00:50:07,043 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:50:07,046 INFO  L255         TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-03 00:50:07,051 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:50:19,795 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 00:50:19,795 INFO  L311         TraceCheckSpWp]: Computing backward predicates...