/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_16.bpl


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


This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a
[2022-02-20 03:10:27,801 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-02-20 03:10:27,880 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-20 03:10:27,882 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
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[2022-02-20 03:10:27,889 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-02-20 03:10:27,889 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
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[2022-02-20 03:10:27,905 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-02-20 03:10:27,906 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf
[2022-02-20 03:10:27,933 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-02-20 03:10:27,933 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-20 03:10:27,933 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-20 03:10:27,933 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-20 03:10:27,934 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-20 03:10:27,934 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-20 03:10:27,935 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-20 03:10:27,935 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-02-20 03:10:27,935 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-02-20 03:10:27,935 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-20 03:10:27,935 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-02-20 03:10:27,935 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-02-20 03:10:27,935 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-02-20 03:10:27,936 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-02-20 03:10:27,936 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-02-20 03:10:27,936 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-20 03:10:27,936 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-02-20 03:10:27,936 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-02-20 03:10:27,936 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-02-20 03:10:27,936 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-02-20 03:10:27,936 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-02-20 03:10:27,937 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-20 03:10:27,937 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-02-20 03:10:27,937 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-02-20 03:10:27,937 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-02-20 03:10:27,937 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-20 03:10:27,937 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-20 03:10:27,937 INFO  L138        SettingsManager]:  * Construct finite automaton lazily=true
[2022-02-20 03:10:27,938 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-02-20 03:10:27,938 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-20 03:10:27,938 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-02-20 03:10:27,938 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-20 03:10:27,938 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-02-20 03:10:27,938 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-02-20 03:10:27,938 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-20 03:10:27,938 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS
[2022-02-20 03:10:27,939 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-20 03:10:28,180 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-20 03:10:28,205 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-20 03:10:28,207 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-20 03:10:28,208 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-02-20 03:10:28,208 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-02-20 03:10:28,210 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_16.bpl
[2022-02-20 03:10:28,210 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_16.bpl'
[2022-02-20 03:10:28,241 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-20 03:10:28,242 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-20 03:10:28,244 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-20 03:10:28,244 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-20 03:10:28,244 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-20 03:10:28,256 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:10:28" (1/1) ...
[2022-02-20 03:10:28,264 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:10:28" (1/1) ...
[2022-02-20 03:10:28,270 INFO  L137                Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-02-20 03:10:28,272 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-20 03:10:28,273 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-20 03:10:28,273 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-20 03:10:28,273 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-02-20 03:10:28,279 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:10:28" (1/1) ...
[2022-02-20 03:10:28,279 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:10:28" (1/1) ...
[2022-02-20 03:10:28,281 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:10:28" (1/1) ...
[2022-02-20 03:10:28,283 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:10:28" (1/1) ...
[2022-02-20 03:10:28,288 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:10:28" (1/1) ...
[2022-02-20 03:10:28,290 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:10:28" (1/1) ...
[2022-02-20 03:10:28,292 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:10:28" (1/1) ...
[2022-02-20 03:10:28,297 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-20 03:10:28,298 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-20 03:10:28,298 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-02-20 03:10:28,298 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-02-20 03:10:28,299 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:10:28" (1/1) ...
[2022-02-20 03:10:28,306 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-20 03:10:28,313 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-20 03:10:28,333 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-02-20 03:10:28,336 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-02-20 03:10:28,364 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_14 given in one single declaration
[2022-02-20 03:10:28,364 INFO  L130     BoogieDeclarations]: Found specification of procedure set_14
[2022-02-20 03:10:28,364 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_14
[2022-02-20 03:10:28,364 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_15 given in one single declaration
[2022-02-20 03:10:28,364 INFO  L130     BoogieDeclarations]: Found specification of procedure set_15
[2022-02-20 03:10:28,364 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_15
[2022-02-20 03:10:28,365 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration
[2022-02-20 03:10:28,365 INFO  L130     BoogieDeclarations]: Found specification of procedure set_1
[2022-02-20 03:10:28,365 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_1
[2022-02-20 03:10:28,365 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration
[2022-02-20 03:10:28,365 INFO  L130     BoogieDeclarations]: Found specification of procedure set_2
[2022-02-20 03:10:28,365 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_2
[2022-02-20 03:10:28,365 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration
[2022-02-20 03:10:28,365 INFO  L130     BoogieDeclarations]: Found specification of procedure set_3
[2022-02-20 03:10:28,365 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_3
[2022-02-20 03:10:28,365 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration
[2022-02-20 03:10:28,366 INFO  L130     BoogieDeclarations]: Found specification of procedure set_4
[2022-02-20 03:10:28,367 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_4
[2022-02-20 03:10:28,368 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration
[2022-02-20 03:10:28,368 INFO  L130     BoogieDeclarations]: Found specification of procedure set_0
[2022-02-20 03:10:28,368 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_0
[2022-02-20 03:10:28,368 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration
[2022-02-20 03:10:28,368 INFO  L130     BoogieDeclarations]: Found specification of procedure set_9
[2022-02-20 03:10:28,368 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_9
[2022-02-20 03:10:28,368 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-02-20 03:10:28,368 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-20 03:10:28,369 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-20 03:10:28,369 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration
[2022-02-20 03:10:28,369 INFO  L130     BoogieDeclarations]: Found specification of procedure set_12
[2022-02-20 03:10:28,369 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_12
[2022-02-20 03:10:28,369 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration
[2022-02-20 03:10:28,369 INFO  L130     BoogieDeclarations]: Found specification of procedure set_5
[2022-02-20 03:10:28,369 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_5
[2022-02-20 03:10:28,369 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_13 given in one single declaration
[2022-02-20 03:10:28,369 INFO  L130     BoogieDeclarations]: Found specification of procedure set_13
[2022-02-20 03:10:28,369 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_13
[2022-02-20 03:10:28,370 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration
[2022-02-20 03:10:28,370 INFO  L130     BoogieDeclarations]: Found specification of procedure set_6
[2022-02-20 03:10:28,370 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_6
[2022-02-20 03:10:28,370 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration
[2022-02-20 03:10:28,370 INFO  L130     BoogieDeclarations]: Found specification of procedure set_10
[2022-02-20 03:10:28,370 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_10
[2022-02-20 03:10:28,370 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration
[2022-02-20 03:10:28,370 INFO  L130     BoogieDeclarations]: Found specification of procedure set_7
[2022-02-20 03:10:28,370 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_7
[2022-02-20 03:10:28,370 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration
[2022-02-20 03:10:28,370 INFO  L130     BoogieDeclarations]: Found specification of procedure set_11
[2022-02-20 03:10:28,371 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_11
[2022-02-20 03:10:28,371 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration
[2022-02-20 03:10:28,371 INFO  L130     BoogieDeclarations]: Found specification of procedure set_8
[2022-02-20 03:10:28,371 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_8
[2022-02-20 03:10:28,372 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-20 03:10:28,421 INFO  L234             CfgBuilder]: Building ICFG
[2022-02-20 03:10:28,424 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-20 03:10:28,584 INFO  L275             CfgBuilder]: Performing block encoding
[2022-02-20 03:10:28,591 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-20 03:10:28,591 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-20 03:10:28,593 INFO  L202        PluginConnector]: Adding new model example_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:10:28 BoogieIcfgContainer
[2022-02-20 03:10:28,593 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-20 03:10:28,595 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-20 03:10:28,595 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-02-20 03:10:28,603 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-02-20 03:10:28,604 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:10:28" (1/2) ...
[2022-02-20 03:10:28,605 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41635b8c and model type example_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:10:28, skipping insertion in model container
[2022-02-20 03:10:28,605 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:10:28" (2/2) ...
[2022-02-20 03:10:28,606 INFO  L111   eAbstractionObserver]: Analyzing ICFG example_16.bpl
[2022-02-20 03:10:28,610 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-20 03:10:28,610 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-20 03:10:28,611 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-20 03:10:28,611 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-20 03:10:28,836 INFO  L148    ThreadInstanceAdder]: Constructed 256 joinOtherThreadTransitions.
[2022-02-20 03:10:28,899 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-02-20 03:10:28,899 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-20 03:10:28,907 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2022-02-20 03:10:28,922 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2022-02-20 03:10:28,946 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-20 03:10:28,958 INFO  L339      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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true
[2022-02-20 03:10:28,958 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 17 error locations.
[2022-02-20 03:10:58,122 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 2208637 transitions and produced 405495 states.
[2022-02-20 03:10:58,126 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 13 more)] ===
[2022-02-20 03:10:58,130 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 03:10:58,131 INFO  L85        PathProgramCache]: Analyzing trace with hash 235199681, now seen corresponding path program 1 times
[2022-02-20 03:10:58,138 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 03:10:58,139 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835085198]
[2022-02-20 03:10:58,139 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 03:10:58,140 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 03:10:58,218 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 03:10:58,320 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-20 03:10:58,321 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 03:10:58,321 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835085198]
[2022-02-20 03:10:58,322 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835085198] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 03:10:58,322 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 03:10:58,322 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-20 03:10:58,323 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503162867]
[2022-02-20 03:10:58,324 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 03:10:58,329 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-20 03:10:58,329 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 03:10:58,444 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-20 03:10:58,446 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-20 03:10:58,450 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 03:10:58,452 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 03:10:58,457 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-20 03:10:58,458 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 03:11:10,444 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 695557 transitions and produced 142982 states.
[2022-02-20 03:11:10,445 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:10,445 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-20 03:11:10,446 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 13 more)] ===
[2022-02-20 03:11:10,448 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 03:11:10,448 INFO  L85        PathProgramCache]: Analyzing trace with hash -1042082247, now seen corresponding path program 1 times
[2022-02-20 03:11:10,449 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 03:11:10,449 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370900187]
[2022-02-20 03:11:10,449 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 03:11:10,449 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 03:11:10,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 03:11:10,565 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-20 03:11:10,566 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 03:11:10,566 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370900187]
[2022-02-20 03:11:10,566 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370900187] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 03:11:10,566 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 03:11:10,567 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-20 03:11:10,567 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095872821]
[2022-02-20 03:11:10,567 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 03:11:10,568 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-20 03:11:10,568 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 03:11:10,569 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-20 03:11:10,569 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-20 03:11:10,569 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 03:11:10,569 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 03:11:10,569 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-20 03:11:10,570 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:10,570 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 03:11:14,743 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 235845 transitions and produced 60554 states.
[2022-02-20 03:11:14,743 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:14,744 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:14,744 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-20 03:11:14,744 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 13 more)] ===
[2022-02-20 03:11:14,745 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 03:11:14,745 INFO  L85        PathProgramCache]: Analyzing trace with hash -2055046539, now seen corresponding path program 1 times
[2022-02-20 03:11:14,745 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 03:11:14,745 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345671441]
[2022-02-20 03:11:14,745 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 03:11:14,746 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 03:11:14,757 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 03:11:14,788 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-20 03:11:14,788 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 03:11:14,789 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345671441]
[2022-02-20 03:11:14,789 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345671441] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 03:11:14,789 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 03:11:14,789 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-20 03:11:14,789 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421053075]
[2022-02-20 03:11:14,789 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 03:11:14,790 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-20 03:11:14,790 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 03:11:14,790 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-20 03:11:14,791 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-20 03:11:14,791 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 03:11:14,791 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 03:11:14,791 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-20 03:11:14,791 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:14,791 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:14,791 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 03:11:15,921 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 56215 transitions and produced 17789 states.
[2022-02-20 03:11:15,921 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:15,922 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:15,922 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:15,922 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-20 03:11:15,922 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 13 more)] ===
[2022-02-20 03:11:15,923 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 03:11:15,923 INFO  L85        PathProgramCache]: Analyzing trace with hash 1734361171, now seen corresponding path program 1 times
[2022-02-20 03:11:15,923 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 03:11:15,923 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476914047]
[2022-02-20 03:11:15,924 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 03:11:15,924 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 03:11:15,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 03:11:15,974 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-20 03:11:15,974 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 03:11:15,975 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476914047]
[2022-02-20 03:11:15,975 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476914047] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 03:11:15,975 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 03:11:15,975 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-20 03:11:15,975 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977295019]
[2022-02-20 03:11:15,975 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 03:11:15,976 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-20 03:11:15,976 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 03:11:15,976 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-20 03:11:15,977 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-20 03:11:15,977 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 03:11:15,977 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 03:11:15,977 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-20 03:11:15,977 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:15,977 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:15,977 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:15,978 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 03:11:16,275 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 5343 transitions and produced 2826 states.
[2022-02-20 03:11:16,275 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,276 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,276 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,276 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,276 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-20 03:11:16,276 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 13 more)] ===
[2022-02-20 03:11:16,277 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 03:11:16,277 INFO  L85        PathProgramCache]: Analyzing trace with hash 723243859, now seen corresponding path program 1 times
[2022-02-20 03:11:16,277 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 03:11:16,277 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8916345]
[2022-02-20 03:11:16,277 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 03:11:16,278 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 03:11:16,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 03:11:16,315 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-20 03:11:16,316 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 03:11:16,316 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8916345]
[2022-02-20 03:11:16,316 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8916345] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 03:11:16,316 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 03:11:16,316 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-20 03:11:16,316 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018120819]
[2022-02-20 03:11:16,317 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 03:11:16,317 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-20 03:11:16,317 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 03:11:16,317 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-20 03:11:16,318 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-20 03:11:16,318 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 03:11:16,318 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 03:11:16,318 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-20 03:11:16,318 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,318 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,318 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,319 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,319 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 03:11:16,492 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1205 transitions and produced 826 states.
[2022-02-20 03:11:16,492 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,493 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-20 03:11:16,493 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 13 more)] ===
[2022-02-20 03:11:16,494 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 03:11:16,494 INFO  L85        PathProgramCache]: Analyzing trace with hash -1224970939, now seen corresponding path program 1 times
[2022-02-20 03:11:16,494 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 03:11:16,494 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334155858]
[2022-02-20 03:11:16,495 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 03:11:16,495 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 03:11:16,506 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 03:11:16,531 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-20 03:11:16,531 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 03:11:16,531 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334155858]
[2022-02-20 03:11:16,531 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334155858] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 03:11:16,532 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 03:11:16,532 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-20 03:11:16,532 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438765784]
[2022-02-20 03:11:16,532 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 03:11:16,532 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-20 03:11:16,532 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 03:11:16,533 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-20 03:11:16,533 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-20 03:11:16,533 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 03:11:16,533 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 03:11:16,533 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-20 03:11:16,534 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,534 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,534 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,534 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,534 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,534 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 03:11:16,708 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1125 transitions and produced 775 states.
[2022-02-20 03:11:16,708 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,708 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,709 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,709 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,709 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,709 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:16,709 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-02-20 03:11:16,710 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 13 more)] ===
[2022-02-20 03:11:16,710 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-20 03:11:16,710 INFO  L85        PathProgramCache]: Analyzing trace with hash 1130672517, now seen corresponding path program 1 times
[2022-02-20 03:11:16,710 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-20 03:11:16,711 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164359521]
[2022-02-20 03:11:16,711 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-20 03:11:16,711 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-20 03:11:16,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-20 03:11:18,575 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-20 03:11:18,576 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-20 03:11:18,576 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164359521]
[2022-02-20 03:11:18,576 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164359521] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-20 03:11:18,576 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-20 03:11:18,576 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17
[2022-02-20 03:11:18,576 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135744565]
[2022-02-20 03:11:18,576 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-20 03:11:18,577 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2022-02-20 03:11:18,577 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-20 03:11:18,577 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2022-02-20 03:11:18,578 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306
[2022-02-20 03:11:18,578 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-20 03:11:18,578 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-20 03:11:18,578 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 17 states have (on average 3.823529411764706) internal successors, (65), 18 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-20 03:11:18,579 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:18,579 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:18,579 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:18,579 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:18,579 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:18,579 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-20 03:11:18,579 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.