/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-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-3.wvr.bpl


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


This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a
[2022-02-19 04:04:06,318 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-02-19 04:04:06,320 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-19 04:04:06,385 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-19 04:04:06,385 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-19 04:04:06,387 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-19 04:04:06,389 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-19 04:04:06,391 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-19 04:04:06,392 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-19 04:04:06,396 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-19 04:04:06,397 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-02-19 04:04:06,398 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-19 04:04:06,398 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-19 04:04:06,399 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-19 04:04:06,400 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-19 04:04:06,403 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-19 04:04:06,404 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-19 04:04:06,404 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-19 04:04:06,405 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-19 04:04:06,406 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-19 04:04:06,406 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-19 04:04:06,407 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-19 04:04:06,408 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-02-19 04:04:06,409 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-19 04:04:06,416 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-19 04:04:06,416 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-19 04:04:06,416 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-19 04:04:06,417 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-02-19 04:04:06,417 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-02-19 04:04:06,418 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-19 04:04:06,418 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-19 04:04:06,418 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-19 04:04:06,419 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-02-19 04:04:06,419 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-02-19 04:04:06,419 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-19 04:04:06,420 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-02-19 04:04:06,420 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-02-19 04:04:06,420 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-02-19 04:04:06,420 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-02-19 04:04:06,421 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-02-19 04:04:06,421 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-02-19 04:04:06,424 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-NewStatesSleepPersistentFixedOrder-NoLbe.epf
[2022-02-19 04:04:06,448 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-02-19 04:04:06,448 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-19 04:04:06,448 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-19 04:04:06,448 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-19 04:04:06,449 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-19 04:04:06,449 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-19 04:04:06,449 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-19 04:04:06,449 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-02-19 04:04:06,449 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-02-19 04:04:06,449 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-19 04:04:06,450 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-02-19 04:04:06,450 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-02-19 04:04:06,450 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-02-19 04:04:06,450 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-02-19 04:04:06,450 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-02-19 04:04:06,450 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-19 04:04:06,450 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-02-19 04:04:06,450 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-02-19 04:04:06,451 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-02-19 04:04:06,451 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-02-19 04:04:06,451 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-02-19 04:04:06,451 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-19 04:04:06,451 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-02-19 04:04:06,451 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-02-19 04:04:06,452 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-02-19 04:04:06,452 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-19 04:04:06,452 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-19 04:04:06,452 INFO  L138        SettingsManager]:  * Construct finite automaton lazily=true
[2022-02-19 04:04:06,452 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-02-19 04:04:06,452 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-19 04:04:06,452 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-02-19 04:04:06,453 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-19 04:04:06,453 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-02-19 04:04:06,453 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-02-19 04:04:06,453 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-19 04:04:06,453 INFO  L138        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2022-02-19 04:04:06,453 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2022-02-19 04:04:06,453 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-19 04:04:06,625 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-19 04:04:06,648 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-19 04:04:06,650 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-19 04:04:06,651 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-02-19 04:04:06,651 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-02-19 04:04:06,652 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-3.wvr.bpl
[2022-02-19 04:04:06,652 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-3.wvr.bpl'
[2022-02-19 04:04:06,681 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-19 04:04:06,682 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-19 04:04:06,683 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-19 04:04:06,683 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-19 04:04:06,683 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-19 04:04:06,690 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:04:06" (1/1) ...
[2022-02-19 04:04:06,694 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:04:06" (1/1) ...
[2022-02-19 04:04:06,698 INFO  L137                Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-02-19 04:04:06,699 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-19 04:04:06,700 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-19 04:04:06,701 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-19 04:04:06,701 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-02-19 04:04:06,707 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:04:06" (1/1) ...
[2022-02-19 04:04:06,708 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:04:06" (1/1) ...
[2022-02-19 04:04:06,708 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:04:06" (1/1) ...
[2022-02-19 04:04:06,708 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:04:06" (1/1) ...
[2022-02-19 04:04:06,711 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:04:06" (1/1) ...
[2022-02-19 04:04:06,712 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:04:06" (1/1) ...
[2022-02-19 04:04:06,713 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:04:06" (1/1) ...
[2022-02-19 04:04:06,713 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-19 04:04:06,714 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-19 04:04:06,714 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-02-19 04:04:06,714 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-02-19 04:04:06,715 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:04:06" (1/1) ...
[2022-02-19 04:04:06,719 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-19 04:04:06,724 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 04:04:06,733 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)
[2022-02-19 04:04:06,740 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
[2022-02-19 04:04:06,759 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2022-02-19 04:04:06,759 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2022-02-19 04:04:06,759 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2022-02-19 04:04:06,759 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2022-02-19 04:04:06,759 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2022-02-19 04:04:06,760 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2022-02-19 04:04:06,760 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-02-19 04:04:06,760 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-19 04:04:06,760 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-19 04:04:06,760 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-19 04:04:06,790 INFO  L234             CfgBuilder]: Building ICFG
[2022-02-19 04:04:06,791 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-19 04:04:06,857 INFO  L275             CfgBuilder]: Performing block encoding
[2022-02-19 04:04:06,861 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-19 04:04:06,861 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-19 04:04:06,863 INFO  L202        PluginConnector]: Adding new model misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:04:06 BoogieIcfgContainer
[2022-02-19 04:04:06,863 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-19 04:04:06,864 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-19 04:04:06,864 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-02-19 04:04:06,872 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-02-19 04:04:06,873 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:04:06" (1/2) ...
[2022-02-19 04:04:06,873 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239499aa and model type misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 04:04:06, skipping insertion in model container
[2022-02-19 04:04:06,873 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:04:06" (2/2) ...
[2022-02-19 04:04:06,874 INFO  L111   eAbstractionObserver]: Analyzing ICFG misc-3.wvr.bpl
[2022-02-19 04:04:06,877 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-19 04:04:06,877 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-19 04:04:06,877 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-19 04:04:06,877 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-19 04:04:06,898 INFO  L148    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2022-02-19 04:04:06,950 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-02-19 04:04:06,951 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 04:04:06,975 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)
[2022-02-19 04:04:07,021 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
[2022-02-19 04:04:07,030 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2022-02-19 04:04:07,035 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
[2022-02-19 04:04:07,035 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2022-02-19 04:04:07,210 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 04:04:07,214 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 04:04:07,214 INFO  L85        PathProgramCache]: Analyzing trace with hash 1522766351, now seen corresponding path program 1 times
[2022-02-19 04:04:07,219 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 04:04:07,220 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363176425]
[2022-02-19 04:04:07,220 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 04:04:07,220 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 04:04:07,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 04:04:07,294 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 04:04:07,295 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 04:04:07,295 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363176425]
[2022-02-19 04:04:07,296 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363176425] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-19 04:04:07,296 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-19 04:04:07,296 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-02-19 04:04:07,297 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836571174]
[2022-02-19 04:04:07,297 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-19 04:04:07,300 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-19 04:04:07,300 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 04:04:07,312 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-19 04:04:07,313 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-19 04:04:07,314 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-19 04:04:07,315 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 04:04:07,316 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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)
[2022-02-19 04:04:07,316 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-19 04:04:07,376 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:07,377 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-19 04:04:07,377 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 04:04:07,377 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 04:04:07,378 INFO  L85        PathProgramCache]: Analyzing trace with hash 1089478198, now seen corresponding path program 1 times
[2022-02-19 04:04:07,378 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 04:04:07,378 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542065431]
[2022-02-19 04:04:07,378 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 04:04:07,378 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 04:04:07,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 04:04:07,401 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 04:04:07,401 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 04:04:07,401 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542065431]
[2022-02-19 04:04:07,402 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542065431] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-19 04:04:07,402 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-19 04:04:07,402 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-19 04:04:07,402 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494232199]
[2022-02-19 04:04:07,402 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-19 04:04:07,404 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-02-19 04:04:07,404 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 04:04:07,404 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-02-19 04:04:07,405 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-02-19 04:04:07,405 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-19 04:04:07,405 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 04:04:07,405 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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)
[2022-02-19 04:04:07,405 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:07,405 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-19 04:04:07,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:07,431 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-02-19 04:04:07,431 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-19 04:04:07,431 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 04:04:07,432 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 04:04:07,432 INFO  L85        PathProgramCache]: Analyzing trace with hash 1276227, now seen corresponding path program 1 times
[2022-02-19 04:04:07,432 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 04:04:07,432 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362028322]
[2022-02-19 04:04:07,432 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 04:04:07,432 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 04:04:07,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 04:04:07,454 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-02-19 04:04:07,454 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 04:04:07,454 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362028322]
[2022-02-19 04:04:07,455 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362028322] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-19 04:04:07,455 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-19 04:04:07,455 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-02-19 04:04:07,455 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644367731]
[2022-02-19 04:04:07,455 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-19 04:04:07,455 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-19 04:04:07,456 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 04:04:07,456 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-19 04:04:07,456 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-19 04:04:07,456 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-19 04:04:07,456 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 04:04:07,457 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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)
[2022-02-19 04:04:07,457 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:07,457 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2022-02-19 04:04:07,457 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-19 04:04:07,472 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:07,472 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-02-19 04:04:07,472 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:07,472 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-19 04:04:07,472 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 04:04:07,473 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 04:04:07,473 INFO  L85        PathProgramCache]: Analyzing trace with hash -809485718, now seen corresponding path program 1 times
[2022-02-19 04:04:07,473 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 04:04:07,473 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585130196]
[2022-02-19 04:04:07,473 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 04:04:07,473 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 04:04:07,482 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 04:04:07,500 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-02-19 04:04:07,500 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 04:04:07,500 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585130196]
[2022-02-19 04:04:07,500 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585130196] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-19 04:04:07,500 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-19 04:04:07,501 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-19 04:04:07,501 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074581526]
[2022-02-19 04:04:07,501 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-19 04:04:07,501 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-02-19 04:04:07,501 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 04:04:07,502 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-02-19 04:04:07,502 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-02-19 04:04:07,502 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-19 04:04:07,502 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 04:04:07,502 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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)
[2022-02-19 04:04:07,502 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:07,503 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2022-02-19 04:04:07,503 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:07,503 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-19 04:04:07,527 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:07,527 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-02-19 04:04:07,527 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:07,527 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-02-19 04:04:07,527 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-19 04:04:07,528 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-02-19 04:04:07,528 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 04:04:07,528 INFO  L85        PathProgramCache]: Analyzing trace with hash -758586251, now seen corresponding path program 1 times
[2022-02-19 04:04:07,528 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 04:04:07,528 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119974376]
[2022-02-19 04:04:07,528 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 04:04:07,529 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 04:04:07,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 04:04:07,627 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-02-19 04:04:07,628 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 04:04:07,628 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119974376]
[2022-02-19 04:04:07,628 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119974376] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 04:04:07,628 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949930827]
[2022-02-19 04:04:07,628 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 04:04:07,628 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 04:04:07,628 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 04:04:07,630 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)
[2022-02-19 04:04:07,644 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-02-19 04:04:07,672 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 04:04:07,674 INFO  L263         TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 11 conjunts are in the unsatisfiable core
[2022-02-19 04:04:07,677 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 04:04:07,857 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-02-19 04:04:07,858 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 04:04:08,012 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-02-19 04:04:08,012 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949930827] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-19 04:04:08,013 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-19 04:04:08,013 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4
[2022-02-19 04:04:08,013 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113833748]
[2022-02-19 04:04:08,013 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-19 04:04:08,014 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-19 04:04:08,014 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 04:04:08,015 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-19 04:04:08,015 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-02-19 04:04:08,015 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-19 04:04:08,015 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 04:04:08,015 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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)
[2022-02-19 04:04:08,016 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:08,016 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2022-02-19 04:04:08,016 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:08,016 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2022-02-19 04:04:08,016 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-19 04:04:08,071 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:08,072 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-02-19 04:04:08,072 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-19 04:04:08,072 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-02-19 04:04:08,074 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-02-19 04:04:08,076 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining)
[2022-02-19 04:04:08,077 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining)
[2022-02-19 04:04:08,077 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining)
[2022-02-19 04:04:08,095 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-02-19 04:04:08,281 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 04:04:08,288 INFO  L732         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2022-02-19 04:04:08,289 INFO  L230   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-19 04:04:08,289 INFO  L180   ceAbstractionStarter]: Computing trace abstraction results
[2022-02-19 04:04:08,291 INFO  L202        PluginConnector]: Adding new model misc-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 04:04:08 BasicIcfg
[2022-02-19 04:04:08,291 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-19 04:04:08,292 INFO  L158              Benchmark]: Toolchain (without parser) took 1609.52ms. Allocated memory was 206.6MB in the beginning and 300.9MB in the end (delta: 94.4MB). Free memory was 166.9MB in the beginning and 216.0MB in the end (delta: -49.1MB). Peak memory consumption was 46.3MB. Max. memory is 8.0GB.
[2022-02-19 04:04:08,292 INFO  L158              Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 206.6MB. Free memory was 168.1MB in the beginning and 168.0MB in the end (delta: 74.0kB). There was no memory consumed. Max. memory is 8.0GB.
[2022-02-19 04:04:08,292 INFO  L158              Benchmark]: Boogie Procedure Inliner took 16.92ms. Allocated memory is still 206.6MB. Free memory was 166.9MB in the beginning and 165.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-19 04:04:08,293 INFO  L158              Benchmark]: Boogie Preprocessor took 12.91ms. Allocated memory is still 206.6MB. Free memory was 165.4MB in the beginning and 164.4MB in the end (delta: 984.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-19 04:04:08,293 INFO  L158              Benchmark]: RCFGBuilder took 148.93ms. Allocated memory is still 206.6MB. Free memory was 164.4MB in the beginning and 155.6MB in the end (delta: 8.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
[2022-02-19 04:04:08,293 INFO  L158              Benchmark]: TraceAbstraction took 1427.26ms. Allocated memory was 206.6MB in the beginning and 300.9MB in the end (delta: 94.4MB). Free memory was 155.1MB in the beginning and 216.0MB in the end (delta: -60.9MB). Peak memory consumption was 34.8MB. Max. memory is 8.0GB.
[2022-02-19 04:04:08,303 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 206.6MB. Free memory was 168.1MB in the beginning and 168.0MB in the end (delta: 74.0kB). There was no memory consumed. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 16.92ms. Allocated memory is still 206.6MB. Free memory was 166.9MB in the beginning and 165.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 12.91ms. Allocated memory is still 206.6MB. Free memory was 165.4MB in the beginning and 164.4MB in the end (delta: 984.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
 * RCFGBuilder took 148.93ms. Allocated memory is still 206.6MB. Free memory was 164.4MB in the beginning and 155.6MB in the end (delta: 8.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
 * TraceAbstraction took 1427.26ms. Allocated memory was 206.6MB in the beginning and 300.9MB in the end (delta: 94.4MB). Free memory was 155.1MB in the beginning and 216.0MB in the end (delta: -60.9MB). Peak memory consumption was 34.8MB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: Independence relation benchmarks
    ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 958, positive: 802, positive conditional: 342, positive unconditional: 460, negative: 156, negative conditional: 156, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 802, positive: 802, positive conditional: 342, positive unconditional: 460, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 802, positive: 802, positive conditional: 342, positive unconditional: 460, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 802, positive: 802, positive conditional: 286, positive unconditional: 516, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 802, positive: 802, positive conditional: 88, positive unconditional: 714, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 802, positive: 802, positive conditional: 88, positive unconditional: 714, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 388, positive: 388, positive conditional: 0, positive unconditional: 388, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 388, positive: 383, positive conditional: 0, positive unconditional: 383, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 70, positive: 70, positive conditional: 0, positive unconditional: 70, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 802, positive: 414, positive conditional: 88, positive unconditional: 326, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 388, unknown conditional: 0, unknown unconditional: 388] , Statistics on independence cache: Total cache size (in pairs): 388, Positive cache size: 388, Positive conditional cache size: 0, Positive unconditional cache size: 388, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 198, Maximal queried relation: 0, Independence queries for same thread: 156
  - StatisticsResult: Persistent set benchmarks
    Persistent set computation time: 0.1s, Number of persistent set computation: 31, Number of trivial persistent sets: 15, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 460, positive: 460, positive conditional: 0, positive unconditional: 460, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 958, positive: 802, positive conditional: 342, positive unconditional: 460, negative: 156, negative conditional: 156, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 802, positive: 802, positive conditional: 342, positive unconditional: 460, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 802, positive: 802, positive conditional: 342, positive unconditional: 460, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 802, positive: 802, positive conditional: 286, positive unconditional: 516, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 802, positive: 802, positive conditional: 88, positive unconditional: 714, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 802, positive: 802, positive conditional: 88, positive unconditional: 714, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 388, positive: 388, positive conditional: 0, positive unconditional: 388, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 388, positive: 383, positive conditional: 0, positive unconditional: 383, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 70, positive: 70, positive conditional: 0, positive unconditional: 70, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 802, positive: 414, positive conditional: 88, positive unconditional: 326, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 388, unknown conditional: 0, unknown unconditional: 388] , Statistics on independence cache: Total cache size (in pairs): 388, Positive cache size: 388, Positive conditional cache size: 0, Positive unconditional cache size: 388, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 198, Maximal queried relation: 0, Independence queries for same thread: 156
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 72]: assertion always holds
    For all program executions holds that assertion always holds at this location
  - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances
    CFG has 5 procedures, 48 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 730 SizeOfPredicates, 1 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 20/50 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-02-19 04:04:08,353 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0
[2022-02-19 04:04:08,533 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...