/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-POR-NewStatesSleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert10.bpl


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


This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747
[2021-08-22 10:32:54,870 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-08-22 10:32:54,872 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-08-22 10:32:54,897 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-08-22 10:32:54,897 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-08-22 10:32:54,898 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-08-22 10:32:54,899 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-08-22 10:32:54,901 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-08-22 10:32:54,903 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-08-22 10:32:54,903 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-08-22 10:32:54,904 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-08-22 10:32:54,905 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-08-22 10:32:54,906 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-08-22 10:32:54,906 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-08-22 10:32:54,908 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-08-22 10:32:54,909 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-08-22 10:32:54,909 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-08-22 10:32:54,910 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-08-22 10:32:54,912 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-08-22 10:32:54,918 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-08-22 10:32:54,919 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-08-22 10:32:54,927 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-08-22 10:32:54,928 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-08-22 10:32:54,937 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-08-22 10:32:54,941 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-08-22 10:32:54,941 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-08-22 10:32:54,941 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-08-22 10:32:54,942 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-08-22 10:32:54,943 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-08-22 10:32:54,943 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-08-22 10:32:54,944 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-08-22 10:32:54,944 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-08-22 10:32:54,945 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-08-22 10:32:54,945 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-08-22 10:32:54,946 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-08-22 10:32:54,947 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-08-22 10:32:54,947 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-08-22 10:32:54,947 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-08-22 10:32:54,948 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-08-22 10:32:54,948 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-08-22 10:32:54,949 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-08-22 10:32:54,956 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-POR-NewStatesSleep-NoLbe-Random7777.epf
[2021-08-22 10:32:54,990 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-08-22 10:32:54,990 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-08-22 10:32:54,991 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-08-22 10:32:54,991 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-08-22 10:32:54,992 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-08-22 10:32:54,992 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-08-22 10:32:54,995 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-08-22 10:32:54,995 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-08-22 10:32:54,995 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-08-22 10:32:54,995 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-08-22 10:32:54,996 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-08-22 10:32:54,996 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-08-22 10:32:54,997 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-08-22 10:32:54,997 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-08-22 10:32:54,997 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-08-22 10:32:54,997 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-08-22 10:32:54,997 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-08-22 10:32:54,997 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-08-22 10:32:54,997 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-08-22 10:32:54,998 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-08-22 10:32:54,998 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-08-22 10:32:54,998 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-08-22 10:32:54,998 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-08-22 10:32:54,999 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-08-22 10:32:54,999 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-08-22 10:32:54,999 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-08-22 10:32:54,999 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-08-22 10:32:54,999 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-08-22 10:32:54,999 INFO  L138        SettingsManager]:  * DFS Order used in POR=RANDOM
[2021-08-22 10:32:55,000 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-08-22 10:32:55,000 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-08-22 10:32:55,000 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2021-08-22 10:32:55,000 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-08-22 10:32:55,000 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES
[2021-08-22 10:32:55,001 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2021-08-22 10:32:55,001 INFO  L138        SettingsManager]:  * Random seed used by POR DFS order=7777
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-08-22 10:32:55,313 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-08-22 10:32:55,337 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-08-22 10:32:55,339 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-08-22 10:32:55,340 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2021-08-22 10:32:55,341 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2021-08-22 10:32:55,342 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert10.bpl
[2021-08-22 10:32:55,343 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert10.bpl'
[2021-08-22 10:32:55,377 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-08-22 10:32:55,378 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2021-08-22 10:32:55,379 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-08-22 10:32:55,379 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-08-22 10:32:55,379 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-08-22 10:32:55,390 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:55" (1/1) ...
[2021-08-22 10:32:55,399 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:55" (1/1) ...
[2021-08-22 10:32:55,410 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-08-22 10:32:55,412 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-08-22 10:32:55,412 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-08-22 10:32:55,412 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-08-22 10:32:55,417 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:55" (1/1) ...
[2021-08-22 10:32:55,418 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:55" (1/1) ...
[2021-08-22 10:32:55,418 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:55" (1/1) ...
[2021-08-22 10:32:55,418 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:55" (1/1) ...
[2021-08-22 10:32:55,420 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:55" (1/1) ...
[2021-08-22 10:32:55,422 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:55" (1/1) ...
[2021-08-22 10:32:55,423 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:55" (1/1) ...
[2021-08-22 10:32:55,424 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-08-22 10:32:55,424 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-08-22 10:32:55,425 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-08-22 10:32:55,425 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-08-22 10:32:55,426 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:55" (1/1) ...
[2021-08-22 10:32:55,432 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-08-22 10:32:55,437 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 10:32:55,449 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)
[2021-08-22 10:32:55,452 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
[2021-08-22 10:32:55,480 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration
[2021-08-22 10:32:55,481 INFO  L130     BoogieDeclarations]: Found specification of procedure DeviceThread
[2021-08-22 10:32:55,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure DeviceThread
[2021-08-22 10:32:55,481 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration
[2021-08-22 10:32:55,481 INFO  L130     BoogieDeclarations]: Found specification of procedure ServerThread
[2021-08-22 10:32:55,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure ServerThread
[2021-08-22 10:32:55,481 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2021-08-22 10:32:55,481 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-08-22 10:32:55,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-08-22 10:32:55,482 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-08-22 10:32:55,645 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-08-22 10:32:55,645 INFO  L299             CfgBuilder]: Removed 7 assume(true) statements.
[2021-08-22 10:32:55,646 WARN  L329             CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location.
[2021-08-22 10:32:55,647 INFO  L202        PluginConnector]: Adding new model bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:32:55 BoogieIcfgContainer
[2021-08-22 10:32:55,647 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-08-22 10:32:55,649 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-08-22 10:32:55,649 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-08-22 10:32:55,651 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-08-22 10:32:55,651 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:55" (1/2) ...
[2021-08-22 10:32:55,652 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100703f3 and model type bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:32:55, skipping insertion in model container
[2021-08-22 10:32:55,652 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:32:55" (2/2) ...
[2021-08-22 10:32:55,654 INFO  L111   eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert10.bpl
[2021-08-22 10:32:55,658 WARN  L149   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-08-22 10:32:55,658 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-08-22 10:32:55,658 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-08-22 10:32:55,658 INFO  L516   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-08-22 10:32:55,704 INFO  L148    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-08-22 10:32:55,755 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-08-22 10:32:55,755 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 10:32:55,777 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)
[2021-08-22 10:32:55,821 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
[2021-08-22 10:32:55,832 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-08-22 10:32:55,848 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, mConcurrency=PARTIAL_ORDER_FA, 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
[2021-08-22 10:32:55,849 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 13 error locations.
[2021-08-22 10:32:55,951 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 9 more)] ===
[2021-08-22 10:32:55,963 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 10:32:55,963 INFO  L82        PathProgramCache]: Analyzing trace with hash -1718945568, now seen corresponding path program 1 times
[2021-08-22 10:32:55,970 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 10:32:55,971 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240523298]
[2021-08-22 10:32:55,971 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 10:32:55,971 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 10:32:56,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 10:32:56,176 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-22 10:32:56,176 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 10:32:56,176 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240523298]
[2021-08-22 10:32:56,177 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240523298] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-22 10:32:56,178 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-08-22 10:32:56,178 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-08-22 10:32:56,180 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520320883]
[2021-08-22 10:32:56,184 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-08-22 10:32:56,185 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 10:32:56,197 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-08-22 10:32:56,199 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-08-22 10:32:56,200 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:32:56,201 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 10:32:56,202 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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)
[2021-08-22 10:32:56,202 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:32:56,387 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:32:56,388 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-08-22 10:32:56,388 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 9 more)] ===
[2021-08-22 10:32:56,391 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 10:32:56,392 INFO  L82        PathProgramCache]: Analyzing trace with hash 913628964, now seen corresponding path program 1 times
[2021-08-22 10:32:56,392 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 10:32:56,392 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664246812]
[2021-08-22 10:32:56,392 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 10:32:56,393 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 10:32:56,412 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 10:32:56,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-22 10:32:56,450 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 10:32:56,450 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664246812]
[2021-08-22 10:32:56,450 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664246812] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-22 10:32:56,451 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-08-22 10:32:56,451 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-08-22 10:32:56,451 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156225986]
[2021-08-22 10:32:56,453 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-08-22 10:32:56,454 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 10:32:56,456 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-08-22 10:32:56,456 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-08-22 10:32:56,457 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:32:56,457 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 10:32:56,457 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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)
[2021-08-22 10:32:56,458 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:32:56,458 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:32:57,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:32:57,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 10:32:57,988 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-08-22 10:32:57,989 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 9 more)] ===
[2021-08-22 10:32:57,989 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 10:32:57,989 INFO  L82        PathProgramCache]: Analyzing trace with hash -131147611, now seen corresponding path program 2 times
[2021-08-22 10:32:57,990 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 10:32:57,990 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837615250]
[2021-08-22 10:32:57,990 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 10:32:57,990 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 10:32:58,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 10:32:58,102 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-08-22 10:32:58,102 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 10:32:58,102 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837615250]
[2021-08-22 10:32:58,103 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837615250] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-22 10:32:58,103 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-08-22 10:32:58,103 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-08-22 10:32:58,104 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257897444]
[2021-08-22 10:32:58,104 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-08-22 10:32:58,104 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 10:32:58,106 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-08-22 10:32:58,106 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-08-22 10:32:58,106 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:32:58,106 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 10:32:58,106 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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)
[2021-08-22 10:32:58,107 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:32:58,107 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 10:32:58,107 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:32:58,257 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:32:58,257 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 10:32:58,258 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:32:58,258 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-08-22 10:32:58,259 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 9 more)] ===
[2021-08-22 10:32:58,259 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 10:32:58,259 INFO  L82        PathProgramCache]: Analyzing trace with hash -135319936, now seen corresponding path program 1 times
[2021-08-22 10:32:58,259 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 10:32:58,260 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930766415]
[2021-08-22 10:32:58,260 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 10:32:58,260 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 10:32:58,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 10:32:58,359 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-08-22 10:32:58,359 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 10:32:58,360 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930766415]
[2021-08-22 10:32:58,360 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930766415] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 10:32:58,360 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086317134]
[2021-08-22 10:32:58,360 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 10:32:58,360 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 10:32:58,360 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 10:32:58,362 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-22 10:32:58,368 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-08-22 10:32:58,407 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 10:32:58,409 INFO  L263         TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-08-22 10:32:58,414 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-22 10:32:58,833 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-08-22 10:32:58,833 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086317134] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 10:32:58,833 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-08-22 10:32:58,834 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7
[2021-08-22 10:32:58,834 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992586904]
[2021-08-22 10:32:58,834 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2021-08-22 10:32:58,834 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 10:32:58,835 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-08-22 10:32:58,835 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2021-08-22 10:32:58,835 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:32:58,835 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 10:32:58,836 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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)
[2021-08-22 10:32:58,836 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:32:58,836 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 10:32:58,844 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:32:58,844 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:32:59,085 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:32:59,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 10:32:59,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:32:59,087 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-08-22 10:32:59,109 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2021-08-22 10:32:59,289 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3
[2021-08-22 10:32:59,289 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 9 more)] ===
[2021-08-22 10:32:59,290 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 10:32:59,290 INFO  L82        PathProgramCache]: Analyzing trace with hash -250297817, now seen corresponding path program 1 times
[2021-08-22 10:32:59,290 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 10:32:59,290 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192809357]
[2021-08-22 10:32:59,291 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 10:32:59,291 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 10:32:59,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 10:32:59,391 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-08-22 10:32:59,391 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 10:32:59,391 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192809357]
[2021-08-22 10:32:59,392 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192809357] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 10:32:59,392 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673716546]
[2021-08-22 10:32:59,392 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 10:32:59,392 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 10:32:59,392 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 10:32:59,397 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-22 10:32:59,408 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-08-22 10:32:59,483 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 10:32:59,484 INFO  L263         TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 21 conjunts are in the unsatisfiable core
[2021-08-22 10:32:59,485 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-22 10:32:59,859 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-08-22 10:32:59,860 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [673716546] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 10:32:59,860 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-08-22 10:32:59,860 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4
[2021-08-22 10:32:59,860 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475025064]
[2021-08-22 10:32:59,861 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-08-22 10:32:59,861 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 10:32:59,861 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-08-22 10:32:59,862 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-08-22 10:32:59,862 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:32:59,862 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 10:32:59,862 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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)
[2021-08-22 10:32:59,862 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:32:59,862 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 10:32:59,863 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:32:59,863 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2021-08-22 10:32:59,863 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:33:00,137 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:33:00,138 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 10:33:00,138 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:33:00,138 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-08-22 10:33:00,138 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 10:33:00,164 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-08-22 10:33:00,356 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 10:33:00,357 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 9 more)] ===
[2021-08-22 10:33:00,358 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 10:33:00,358 INFO  L82        PathProgramCache]: Analyzing trace with hash -1067286574, now seen corresponding path program 1 times
[2021-08-22 10:33:00,358 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 10:33:00,358 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884420563]
[2021-08-22 10:33:00,358 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 10:33:00,358 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 10:33:00,371 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 10:33:00,504 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2021-08-22 10:33:00,504 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 10:33:00,504 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884420563]
[2021-08-22 10:33:00,504 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884420563] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 10:33:00,505 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264937370]
[2021-08-22 10:33:00,505 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 10:33:00,505 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 10:33:00,505 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 10:33:00,506 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-22 10:33:00,510 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2021-08-22 10:33:00,621 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 10:33:00,622 INFO  L263         TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core
[2021-08-22 10:33:00,623 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-22 10:33:00,936 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2021-08-22 10:33:00,936 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264937370] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 10:33:00,936 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-08-22 10:33:00,937 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8
[2021-08-22 10:33:00,937 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473329059]
[2021-08-22 10:33:00,938 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-08-22 10:33:00,939 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 10:33:00,940 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-08-22 10:33:00,940 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90
[2021-08-22 10:33:00,940 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:33:00,940 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 10:33:00,940 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 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)
[2021-08-22 10:33:00,941 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:33:00,941 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 10:33:00,941 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:33:00,941 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2021-08-22 10:33:00,941 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 10:33:00,941 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:33:01,312 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:33:01,313 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 10:33:01,313 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:33:01,313 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-08-22 10:33:01,313 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 10:33:01,313 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 10:33:01,340 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2021-08-22 10:33:01,534 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 10:33:01,534 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 9 more)] ===
[2021-08-22 10:33:01,535 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 10:33:01,535 INFO  L82        PathProgramCache]: Analyzing trace with hash -671056620, now seen corresponding path program 1 times
[2021-08-22 10:33:01,535 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 10:33:01,535 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342295328]
[2021-08-22 10:33:01,535 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 10:33:01,535 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 10:33:01,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 10:33:01,659 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-08-22 10:33:01,660 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 10:33:01,660 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342295328]
[2021-08-22 10:33:01,660 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342295328] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 10:33:01,660 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345790404]
[2021-08-22 10:33:01,661 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 10:33:01,661 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 10:33:01,661 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 10:33:01,665 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-22 10:33:01,692 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2021-08-22 10:33:01,802 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 10:33:01,803 INFO  L263         TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 25 conjunts are in the unsatisfiable core
[2021-08-22 10:33:01,804 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-22 10:33:02,092 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-08-22 10:33:02,092 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [345790404] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 10:33:02,093 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-08-22 10:33:02,093 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2021-08-22 10:33:02,093 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224012937]
[2021-08-22 10:33:02,093 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-08-22 10:33:02,093 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 10:33:02,094 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-08-22 10:33:02,094 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2021-08-22 10:33:02,094 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:33:02,094 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 10:33:02,094 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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)
[2021-08-22 10:33:02,094 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:33:02,095 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 10:33:02,095 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:33:02,095 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2021-08-22 10:33:02,095 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 10:33:02,095 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 10:33:02,095 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:33:02,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:33:02,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 10:33:02,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:33:02,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 10:33:02,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 10:33:02,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 10:33:02,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-08-22 10:33:02,853 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2021-08-22 10:33:03,044 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 10:33:03,045 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting ServerThreadErr0ASSERT_VIOLATIONASSERT === [ServerThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 9 more)] ===
[2021-08-22 10:33:03,045 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 10:33:03,045 INFO  L82        PathProgramCache]: Analyzing trace with hash 1271435539, now seen corresponding path program 1 times
[2021-08-22 10:33:03,046 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 10:33:03,046 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663854365]
[2021-08-22 10:33:03,046 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 10:33:03,046 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 10:33:03,052 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 10:33:03,172 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-08-22 10:33:03,172 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 10:33:03,172 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663854365]
[2021-08-22 10:33:03,172 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663854365] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 10:33:03,173 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031104451]
[2021-08-22 10:33:03,173 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 10:33:03,173 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 10:33:03,173 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 10:33:03,179 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-22 10:33:03,183 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2021-08-22 10:33:03,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 10:33:03,362 INFO  L263         TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 21 conjunts are in the unsatisfiable core
[2021-08-22 10:33:03,364 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-22 10:33:03,667 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-08-22 10:33:03,667 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031104451] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 10:33:03,667 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-08-22 10:33:03,667 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10
[2021-08-22 10:33:03,668 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764939795]
[2021-08-22 10:33:03,668 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2021-08-22 10:33:03,668 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 10:33:03,669 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-08-22 10:33:03,669 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132
[2021-08-22 10:33:03,669 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 10:33:03,669 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 10:33:03,669 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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)
[2021-08-22 10:33:03,669 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:33:03,669 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 10:33:03,669 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 10:33:03,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 10:33:03,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 10:33:03,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 10:33:03,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2021-08-22 10:33:03,670 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.