/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i


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


This is Ultimate 0.3.0-wip.dk.conditional-comm-158c277
[2024-11-14 12:04:06,258 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-14 12:04:06,325 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf
[2024-11-14 12:04:06,333 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-14 12:04:06,333 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-14 12:04:06,362 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-14 12:04:06,363 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-14 12:04:06,363 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-14 12:04:06,363 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-14 12:04:06,363 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-14 12:04:06,364 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-14 12:04:06,364 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-14 12:04:06,364 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-14 12:04:06,364 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-14 12:04:06,364 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-14 12:04:06,364 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-14 12:04:06,364 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-14 12:04:06,364 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-14 12:04:06,364 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-14 12:04:06,364 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-14 12:04:06,365 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-14 12:04:06,365 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-14 12:04:06,366 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-14 12:04:06,366 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-14 12:04:06,366 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-14 12:04:06,366 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-14 12:04:06,367 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-14 12:04:06,367 INFO  L153        SettingsManager]:  * To the following directory=./dump/
[2024-11-14 12:04:06,367 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-14 12:04:06,367 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-14 12:04:06,367 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-14 12:04:06,367 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-14 12:04:06,367 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-14 12:04:06,367 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-14 12:04:06,367 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-14 12:04:06,367 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-14 12:04:06,367 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2024-11-14 12:04:06,368 INFO  L153        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2024-11-14 12:04:06,368 INFO  L153        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2024-11-14 12:04:06,368 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT
[2024-11-14 12:04:06,650 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-14 12:04:06,657 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-14 12:04:06,659 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-14 12:04:06,660 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-14 12:04:06,660 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-14 12:04:06,662 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i
[2024-11-14 12:04:08,131 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-14 12:04:08,452 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-14 12:04:08,452 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i
[2024-11-14 12:04:08,469 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/cb2cdf2a1/e1dde6bd2ef14ac9b4b609d9779fecba/FLAG32f347923
[2024-11-14 12:04:08,487 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/cb2cdf2a1/e1dde6bd2ef14ac9b4b609d9779fecba
[2024-11-14 12:04:08,491 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-14 12:04:08,492 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-14 12:04:08,494 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-14 12:04:08,494 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-14 12:04:08,501 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-14 12:04:08,502 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 12:04:08" (1/1) ...
[2024-11-14 12:04:08,502 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6afe590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:08, skipping insertion in model container
[2024-11-14 12:04:08,502 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 12:04:08" (1/1) ...
[2024-11-14 12:04:08,541 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-14 12:04:08,695 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i[964,977]
[2024-11-14 12:04:08,911 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-14 12:04:08,924 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-14 12:04:08,935 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i[964,977]
[2024-11-14 12:04:08,994 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-14 12:04:09,025 INFO  L204         MainTranslator]: Completed translation
[2024-11-14 12:04:09,026 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:09 WrapperNode
[2024-11-14 12:04:09,026 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-14 12:04:09,028 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-14 12:04:09,028 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-14 12:04:09,028 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-14 12:04:09,033 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:09" (1/1) ...
[2024-11-14 12:04:09,049 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:09" (1/1) ...
[2024-11-14 12:04:09,081 INFO  L138                Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 115
[2024-11-14 12:04:09,083 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-14 12:04:09,083 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-14 12:04:09,083 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-14 12:04:09,083 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-14 12:04:09,090 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:09" (1/1) ...
[2024-11-14 12:04:09,090 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:09" (1/1) ...
[2024-11-14 12:04:09,094 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:09" (1/1) ...
[2024-11-14 12:04:09,094 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:09" (1/1) ...
[2024-11-14 12:04:09,104 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:09" (1/1) ...
[2024-11-14 12:04:09,106 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:09" (1/1) ...
[2024-11-14 12:04:09,108 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:09" (1/1) ...
[2024-11-14 12:04:09,109 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:09" (1/1) ...
[2024-11-14 12:04:09,114 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-14 12:04:09,115 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-14 12:04:09,115 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-14 12:04:09,115 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-14 12:04:09,120 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:09" (1/1) ...
[2024-11-14 12:04:09,127 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-14 12:04:09,140 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3
[2024-11-14 12:04:09,154 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2024-11-14 12:04:09,160 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2024-11-14 12:04:09,180 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-14 12:04:09,180 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-14 12:04:09,181 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2024-11-14 12:04:09,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2024-11-14 12:04:09,181 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2024-11-14 12:04:09,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2024-11-14 12:04:09,181 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2024-11-14 12:04:09,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2024-11-14 12:04:09,181 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-11-14 12:04:09,181 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-14 12:04:09,181 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-14 12:04:09,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-14 12:04:09,182 WARN  L207             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-14 12:04:09,293 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-14 12:04:09,295 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-14 12:04:09,535 INFO  L283             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-14 12:04:09,536 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-14 12:04:09,681 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-14 12:04:09,681 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-14 12:04:09,681 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 12:04:09 BoogieIcfgContainer
[2024-11-14 12:04:09,682 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-14 12:04:09,684 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-14 12:04:09,684 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-14 12:04:09,690 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-14 12:04:09,690 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 12:04:08" (1/3) ...
[2024-11-14 12:04:09,690 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba026aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 12:04:09, skipping insertion in model container
[2024-11-14 12:04:09,691 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:04:09" (2/3) ...
[2024-11-14 12:04:09,691 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba026aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 12:04:09, skipping insertion in model container
[2024-11-14 12:04:09,691 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 12:04:09" (3/3) ...
[2024-11-14 12:04:09,692 INFO  L112   eAbstractionObserver]: Analyzing ICFG mix052_pso.opt_rmo.opt_tso.opt.i
[2024-11-14 12:04:09,706 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-14 12:04:09,707 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to ICFG mix052_pso.opt_rmo.opt_tso.opt.i that has 4 procedures, 104 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-11-14 12:04:09,707 INFO  L492   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-14 12:04:09,764 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-14 12:04:09,818 INFO  L123   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 12:04:09,819 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-11-14 12:04:09,819 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3
[2024-11-14 12:04:09,822 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-11-14 12:04:09,824 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2024-11-14 12:04:09,930 INFO  L185   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-11-14 12:04:09,944 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Thread1of1ForFork1 ========
[2024-11-14 12:04:09,954 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7928c96e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 12:04:09,954 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-14 12:04:18,028 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-14 12:04:18,034 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 12:04:18,036 INFO  L85        PathProgramCache]: Analyzing trace with hash -1314908245, now seen corresponding path program 1 times
[2024-11-14 12:04:18,042 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 12:04:18,043 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264059109]
[2024-11-14 12:04:18,043 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 12:04:18,043 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 12:04:18,292 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 12:04:19,209 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 12:04:19,210 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-14 12:04:19,212 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264059109]
[2024-11-14 12:04:19,213 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264059109] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 12:04:19,213 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 12:04:19,213 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 12:04:19,214 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781357726]
[2024-11-14 12:04:19,215 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 12:04:19,220 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 12:04:19,220 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-14 12:04:19,240 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 12:04:19,240 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-14 12:04:19,241 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:19,243 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-14 12:04:19,244 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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)
[2024-11-14 12:04:19,244 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:35,156 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-14 12:04:35,159 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-14 12:04:35,159 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-14 12:04:35,164 INFO  L422         BasicCegarLoop]: Path program histogram: [1]
[2024-11-14 12:04:35,166 INFO  L320   ceAbstractionStarter]: Result for error location P2Thread1of1ForFork1 was SAFE (1/2)
[2024-11-14 12:04:35,170 INFO  L123   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 12:04:35,171 INFO  L185   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-11-14 12:04:35,171 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-11-14 12:04:35,172 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7928c96e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 12:04:35,172 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2024-11-14 12:04:35,193 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-14 12:04:35,193 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 12:04:35,193 INFO  L85        PathProgramCache]: Analyzing trace with hash -1022781202, now seen corresponding path program 1 times
[2024-11-14 12:04:35,193 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 12:04:35,194 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651773402]
[2024-11-14 12:04:35,194 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 12:04:35,194 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 12:04:35,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 12:04:35,250 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 12:04:35,250 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-14 12:04:35,250 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651773402]
[2024-11-14 12:04:35,250 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651773402] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 12:04:35,250 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 12:04:35,250 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-14 12:04:35,250 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257732455]
[2024-11-14 12:04:35,250 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 12:04:35,251 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-14 12:04:35,251 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-14 12:04:35,251 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-14 12:04:35,252 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-14 12:04:35,252 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:35,252 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-14 12:04:35,252 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 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)
[2024-11-14 12:04:35,252 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:35,278 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:35,278 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-14 12:04:35,278 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-14 12:04:35,279 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 12:04:35,279 INFO  L85        PathProgramCache]: Analyzing trace with hash -1542236121, now seen corresponding path program 1 times
[2024-11-14 12:04:35,279 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 12:04:35,279 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581695284]
[2024-11-14 12:04:35,279 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 12:04:35,279 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 12:04:35,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 12:04:35,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 12:04:35,959 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-14 12:04:35,959 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581695284]
[2024-11-14 12:04:35,959 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581695284] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 12:04:35,959 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 12:04:35,959 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-14 12:04:35,959 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381828627]
[2024-11-14 12:04:35,959 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 12:04:35,961 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-14 12:04:35,962 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-14 12:04:35,962 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-14 12:04:35,962 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-14 12:04:35,962 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:35,965 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-14 12:04:35,966 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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)
[2024-11-14 12:04:35,966 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:35,966 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:37,405 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:37,406 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 12:04:37,406 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-14 12:04:37,406 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-14 12:04:37,406 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 12:04:37,407 INFO  L85        PathProgramCache]: Analyzing trace with hash -1834162277, now seen corresponding path program 1 times
[2024-11-14 12:04:37,407 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 12:04:37,407 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344297745]
[2024-11-14 12:04:37,407 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 12:04:37,407 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 12:04:37,462 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 12:04:37,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 12:04:37,765 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-14 12:04:37,765 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344297745]
[2024-11-14 12:04:37,765 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344297745] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 12:04:37,765 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 12:04:37,765 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-14 12:04:37,765 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69883676]
[2024-11-14 12:04:37,766 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 12:04:37,766 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-14 12:04:37,766 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-14 12:04:37,766 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-14 12:04:37,767 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-14 12:04:37,767 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:37,767 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-14 12:04:37,767 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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)
[2024-11-14 12:04:37,767 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:37,767 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 12:04:37,767 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:37,892 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:37,892 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 12:04:37,893 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-14 12:04:37,893 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-14 12:04:37,893 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-14 12:04:37,894 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 12:04:37,894 INFO  L85        PathProgramCache]: Analyzing trace with hash 1876536879, now seen corresponding path program 1 times
[2024-11-14 12:04:37,894 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 12:04:37,894 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34518827]
[2024-11-14 12:04:37,894 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 12:04:37,894 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 12:04:37,954 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 12:04:38,223 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 12:04:38,224 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-14 12:04:38,224 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34518827]
[2024-11-14 12:04:38,224 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34518827] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 12:04:38,224 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 12:04:38,224 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-14 12:04:38,224 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323953036]
[2024-11-14 12:04:38,224 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 12:04:38,224 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-14 12:04:38,224 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-14 12:04:38,225 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-14 12:04:38,225 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-14 12:04:38,225 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:38,225 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-14 12:04:38,225 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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)
[2024-11-14 12:04:38,225 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:38,225 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 12:04:38,225 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2024-11-14 12:04:38,226 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:53,427 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:53,427 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 12:04:53,427 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2024-11-14 12:04:53,428 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-14 12:04:53,428 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-14 12:04:53,429 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-14 12:04:53,429 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 12:04:53,429 INFO  L85        PathProgramCache]: Analyzing trace with hash -899307563, now seen corresponding path program 2 times
[2024-11-14 12:04:53,429 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 12:04:53,430 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023756388]
[2024-11-14 12:04:53,430 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 12:04:53,430 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 12:04:53,493 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 12:04:54,188 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 12:04:54,188 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-14 12:04:54,188 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023756388]
[2024-11-14 12:04:54,188 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023756388] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 12:04:54,188 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 12:04:54,188 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-11-14 12:04:54,188 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908863194]
[2024-11-14 12:04:54,188 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 12:04:54,189 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-14 12:04:54,189 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-14 12:04:54,189 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-14 12:04:54,189 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2024-11-14 12:04:54,189 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:54,189 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-14 12:04:54,190 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 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)
[2024-11-14 12:04:54,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:04:54,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 12:04:54,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. 
[2024-11-14 12:04:54,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2024-11-14 12:04:54,190 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:05:07,186 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-14 12:05:07,186 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 12:05:07,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2024-11-14 12:05:07,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-14 12:05:07,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-14 12:05:07,188 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-14 12:05:07,188 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-14 12:05:07,188 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 12:05:07,188 INFO  L85        PathProgramCache]: Analyzing trace with hash -1098258919, now seen corresponding path program 3 times
[2024-11-14 12:05:07,188 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-14 12:05:07,188 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832196395]
[2024-11-14 12:05:07,189 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 12:05:07,189 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 12:05:07,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-14 12:05:07,242 INFO  L357             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-14 12:05:07,304 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-14 12:05:07,349 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-14 12:05:07,349 INFO  L340         BasicCegarLoop]: Counterexample is feasible
[2024-11-14 12:05:07,350 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining)
[2024-11-14 12:05:07,350 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining)
[2024-11-14 12:05:07,350 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining)
[2024-11-14 12:05:07,350 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining)
[2024-11-14 12:05:07,350 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-14 12:05:07,351 INFO  L422         BasicCegarLoop]: Path program histogram: [3, 1, 1, 1]
[2024-11-14 12:05:07,351 INFO  L320   ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN (2/2)
[2024-11-14 12:05:07,477 INFO  L242   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-14 12:05:07,477 INFO  L173   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-14 12:05:07,508 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0
[2024-11-14 12:05:07,509 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 12:05:07 BasicIcfg
[2024-11-14 12:05:07,509 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-14 12:05:07,510 INFO  L158              Benchmark]: Toolchain (without parser) took 59017.21ms. Allocated memory was 83.9MB in the beginning and 893.4MB in the end (delta: 809.5MB). Free memory was 55.1MB in the beginning and 571.8MB in the end (delta: -516.6MB). Peak memory consumption was 290.6MB. Max. memory is 8.0GB.
[2024-11-14 12:05:07,510 INFO  L158              Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 8.0GB.
[2024-11-14 12:05:07,510 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 533.05ms. Allocated memory is still 83.9MB. Free memory was 55.1MB in the beginning and 32.2MB in the end (delta: 22.9MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB.
[2024-11-14 12:05:07,510 INFO  L158              Benchmark]: Boogie Procedure Inliner took 55.06ms. Allocated memory is still 83.9MB. Free memory was 32.2MB in the beginning and 30.2MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
[2024-11-14 12:05:07,510 INFO  L158              Benchmark]: Boogie Preprocessor took 30.90ms. Allocated memory is still 83.9MB. Free memory was 30.2MB in the beginning and 28.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB.
[2024-11-14 12:05:07,511 INFO  L158              Benchmark]: RCFGBuilder took 566.73ms. Allocated memory is still 83.9MB. Free memory was 28.6MB in the beginning and 32.6MB in the end (delta: -4.0MB). Peak memory consumption was 17.3MB. Max. memory is 8.0GB.
[2024-11-14 12:05:07,511 INFO  L158              Benchmark]: TraceAbstraction took 57825.17ms. Allocated memory was 83.9MB in the beginning and 893.4MB in the end (delta: 809.5MB). Free memory was 32.2MB in the beginning and 571.8MB in the end (delta: -539.6MB). Peak memory consumption was 269.2MB. Max. memory is 8.0GB.
[2024-11-14 12:05:07,514 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 533.05ms. Allocated memory is still 83.9MB. Free memory was 55.1MB in the beginning and 32.2MB in the end (delta: 22.9MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 55.06ms. Allocated memory is still 83.9MB. Free memory was 32.2MB in the beginning and 30.2MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 30.90ms. Allocated memory is still 83.9MB. Free memory was 30.2MB in the beginning and 28.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB.
 * RCFGBuilder took 566.73ms. Allocated memory is still 83.9MB. Free memory was 28.6MB in the beginning and 32.6MB in the end (delta: -4.0MB). Peak memory consumption was 17.3MB. Max. memory is 8.0GB.
 * TraceAbstraction took 57825.17ms. Allocated memory was 83.9MB in the beginning and 893.4MB in the end (delta: 809.5MB). Free memory was 32.2MB in the beginning and 571.8MB in the end (delta: -539.6MB). Peak memory consumption was 269.2MB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: Partial order reduction statistics
    Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6757, independent: 6559, independent conditional: 4914, independent unconditional: 1645, dependent: 198, dependent conditional: 175, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6732, independent: 6559, independent conditional: 4914, independent unconditional: 1645, dependent: 173, dependent conditional: 150, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6732, independent: 6559, independent conditional: 4914, independent unconditional: 1645, dependent: 173, dependent conditional: 150, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6936, independent: 6559, independent conditional: 4914, independent unconditional: 1645, dependent: 377, dependent conditional: 354, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6936, independent: 6559, independent conditional: 54, independent unconditional: 6505, dependent: 377, dependent conditional: 66, dependent unconditional: 311, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6936, independent: 6559, independent conditional: 54, independent unconditional: 6505, dependent: 377, dependent conditional: 66, dependent unconditional: 311, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1677, independent: 1647, independent conditional: 2, independent unconditional: 1645, dependent: 30, dependent conditional: 5, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1677, independent: 1639, independent conditional: 0, independent unconditional: 1639, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 38, independent: 8, independent conditional: 2, independent unconditional: 6, dependent: 30, dependent conditional: 5, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 8, independent conditional: 2, independent unconditional: 6, dependent: 30, dependent conditional: 5, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 23484, independent: 708, independent conditional: 609, independent unconditional: 99, dependent: 22776, dependent conditional: 8581, dependent unconditional: 14195, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 6936, independent: 4912, independent conditional: 52, independent unconditional: 4860, dependent: 347, dependent conditional: 61, dependent unconditional: 286, unknown: 1677, unknown conditional: 7, unknown unconditional: 1670] , Statistics on independence cache: Total cache size (in pairs): 1677, Positive cache size: 1647, Positive conditional cache size: 2, Positive unconditional cache size: 1645, Negative cache size: 30, Negative conditional cache size: 5, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5148, Maximal queried relation: 1, Independence queries for same thread: 25, Persistent sets #1 benchmarks: Persistent set computation time: 13.9s, Number of persistent set computation: 948, Number of trivial persistent sets: 265, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1668, independent: 1645, independent conditional: 0, independent unconditional: 1645, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6757, independent: 6559, independent conditional: 4914, independent unconditional: 1645, dependent: 198, dependent conditional: 175, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6732, independent: 6559, independent conditional: 4914, independent unconditional: 1645, dependent: 173, dependent conditional: 150, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6732, independent: 6559, independent conditional: 4914, independent unconditional: 1645, dependent: 173, dependent conditional: 150, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6936, independent: 6559, independent conditional: 4914, independent unconditional: 1645, dependent: 377, dependent conditional: 354, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6936, independent: 6559, independent conditional: 54, independent unconditional: 6505, dependent: 377, dependent conditional: 66, dependent unconditional: 311, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6936, independent: 6559, independent conditional: 54, independent unconditional: 6505, dependent: 377, dependent conditional: 66, dependent unconditional: 311, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1677, independent: 1647, independent conditional: 2, independent unconditional: 1645, dependent: 30, dependent conditional: 5, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1677, independent: 1639, independent conditional: 0, independent unconditional: 1639, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 38, independent: 8, independent conditional: 2, independent unconditional: 6, dependent: 30, dependent conditional: 5, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 8, independent conditional: 2, independent unconditional: 6, dependent: 30, dependent conditional: 5, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 23484, independent: 708, independent conditional: 609, independent unconditional: 99, dependent: 22776, dependent conditional: 8581, dependent unconditional: 14195, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 6936, independent: 4912, independent conditional: 52, independent unconditional: 4860, dependent: 347, dependent conditional: 61, dependent unconditional: 286, unknown: 1677, unknown conditional: 7, unknown unconditional: 1670] , Statistics on independence cache: Total cache size (in pairs): 1677, Positive cache size: 1647, Positive conditional cache size: 2, Positive unconditional cache size: 1645, Negative cache size: 30, Negative conditional cache size: 5, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5148, Maximal queried relation: 1, Independence queries for same thread: 25
  - StatisticsResult: Partial order reduction statistics
    Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15898, independent: 15612, independent conditional: 14149, independent unconditional: 1463, dependent: 286, dependent conditional: 263, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15838, independent: 15612, independent conditional: 14149, independent unconditional: 1463, dependent: 226, dependent conditional: 203, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 15838, independent: 15612, independent conditional: 14149, independent unconditional: 1463, dependent: 226, dependent conditional: 203, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16783, independent: 15612, independent conditional: 14149, independent unconditional: 1463, dependent: 1171, dependent conditional: 1148, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16783, independent: 15612, independent conditional: 178, independent unconditional: 15434, dependent: 1171, dependent conditional: 78, dependent unconditional: 1093, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16783, independent: 15612, independent conditional: 178, independent unconditional: 15434, dependent: 1171, dependent conditional: 78, dependent unconditional: 1093, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 204, independent: 192, independent conditional: 12, independent unconditional: 180, dependent: 12, dependent conditional: 5, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 204, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 26, independent: 14, independent conditional: 12, independent unconditional: 2, dependent: 12, dependent conditional: 5, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, independent: 14, independent conditional: 12, independent unconditional: 2, dependent: 12, dependent conditional: 5, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28713, independent: 2412, independent conditional: 2407, independent unconditional: 5, dependent: 26301, dependent conditional: 16503, dependent unconditional: 9798, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 16783, independent: 15420, independent conditional: 166, independent unconditional: 15254, dependent: 1159, dependent conditional: 73, dependent unconditional: 1086, unknown: 204, unknown conditional: 17, unknown unconditional: 187] , Statistics on independence cache: Total cache size (in pairs): 1874, Positive cache size: 1837, Positive conditional cache size: 12, Positive unconditional cache size: 1825, Negative cache size: 37, Negative conditional cache size: 5, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 15041, Maximal queried relation: 4, Independence queries for same thread: 60, Persistent sets #1 benchmarks: Persistent set computation time: 8.8s, Number of persistent set computation: 1521, Number of trivial persistent sets: 501, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1486, independent: 1463, independent conditional: 0, independent unconditional: 1463, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15898, independent: 15612, independent conditional: 14149, independent unconditional: 1463, dependent: 286, dependent conditional: 263, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15838, independent: 15612, independent conditional: 14149, independent unconditional: 1463, dependent: 226, dependent conditional: 203, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 15838, independent: 15612, independent conditional: 14149, independent unconditional: 1463, dependent: 226, dependent conditional: 203, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16783, independent: 15612, independent conditional: 14149, independent unconditional: 1463, dependent: 1171, dependent conditional: 1148, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16783, independent: 15612, independent conditional: 178, independent unconditional: 15434, dependent: 1171, dependent conditional: 78, dependent unconditional: 1093, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16783, independent: 15612, independent conditional: 178, independent unconditional: 15434, dependent: 1171, dependent conditional: 78, dependent unconditional: 1093, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 204, independent: 192, independent conditional: 12, independent unconditional: 180, dependent: 12, dependent conditional: 5, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 204, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 26, independent: 14, independent conditional: 12, independent unconditional: 2, dependent: 12, dependent conditional: 5, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, independent: 14, independent conditional: 12, independent unconditional: 2, dependent: 12, dependent conditional: 5, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28713, independent: 2412, independent conditional: 2407, independent unconditional: 5, dependent: 26301, dependent conditional: 16503, dependent unconditional: 9798, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 16783, independent: 15420, independent conditional: 166, independent unconditional: 15254, dependent: 1159, dependent conditional: 73, dependent unconditional: 1086, unknown: 204, unknown conditional: 17, unknown unconditional: 187] , Statistics on independence cache: Total cache size (in pairs): 1874, Positive cache size: 1837, Positive conditional cache size: 12, Positive unconditional cache size: 1825, Negative cache size: 37, Negative conditional cache size: 5, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 15041, Maximal queried relation: 4, Independence queries for same thread: 60
  - CounterExampleResult [Line: 18]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L709]               0  int __unbuffered_cnt = 0;
        VAL             [__unbuffered_cnt=0]
[L711]               0  int __unbuffered_p1_EAX = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0]
[L713]               0  int __unbuffered_p2_EAX = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0]
[L714]               0  _Bool main$tmp_guard0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0]
[L715]               0  _Bool main$tmp_guard1;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0]
[L717]               0  int x = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0]
[L719]               0  int y = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0]
[L720]               0  _Bool y$flush_delayed;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y=0]
[L721]               0  int y$mem_tmp;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y=0]
[L722]               0  _Bool y$r_buff0_thd0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y=0]
[L723]               0  _Bool y$r_buff0_thd1;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y=0]
[L724]               0  _Bool y$r_buff0_thd2;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y=0]
[L725]               0  _Bool y$r_buff0_thd3;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y=0]
[L726]               0  _Bool y$r_buff1_thd0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y=0]
[L727]               0  _Bool y$r_buff1_thd1;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y=0]
[L728]               0  _Bool y$r_buff1_thd2;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y=0]
[L729]               0  _Bool y$r_buff1_thd3;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y=0]
[L730]               0  _Bool y$read_delayed;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y=0]
[L731]               0  int *y$read_delayed_var;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y=0]
[L732]               0  int y$w_buff0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y=0]
[L733]               0  _Bool y$w_buff0_used;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y=0]
[L734]               0  int y$w_buff1;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y=0]
[L735]               0  _Bool y$w_buff1_used;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0]
[L737]               0  int z = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L738]               0  _Bool weak$$choice0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L739]               0  _Bool weak$$choice2;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L823]               0  pthread_t t1394;
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L824]  FCALL, FORK  0  pthread_create(&t1394, ((void *)0), P0, ((void *)0))
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1394=-2, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L825]               0  pthread_t t1395;
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1394=-2, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L826]  FCALL, FORK  0  pthread_create(&t1395, ((void *)0), P1, ((void *)0))
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1394=-2, t1395=-1, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L827]               0  pthread_t t1396;
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1394=-2, t1395=-1, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L828]  FCALL, FORK  0  pthread_create(&t1396, ((void *)0), P2, ((void *)0))
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1394=-2, t1395=-1, t1396=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L786]               3  y$w_buff1 = y$w_buff0
[L787]               3  y$w_buff0 = 1
[L788]               3  y$w_buff1_used = y$w_buff0_used
[L789]               3  y$w_buff0_used = (_Bool)1
[L790]  CALL         3  __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used))
[L18]   COND FALSE   3  !(!expression)
[L790]  RET          3  __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used))
[L791]               3  y$r_buff1_thd0 = y$r_buff0_thd0
[L792]               3  y$r_buff1_thd1 = y$r_buff0_thd1
[L793]               3  y$r_buff1_thd2 = y$r_buff0_thd2
[L794]               3  y$r_buff1_thd3 = y$r_buff0_thd3
[L795]               3  y$r_buff0_thd3 = (_Bool)1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L798]               3  __unbuffered_p2_EAX = z
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L743]               1  z = 1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L746]               1  x = 1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L758]               2  x = 2
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L761]               2  weak$$choice0 = __VERIFIER_nondet_bool()
[L762]               2  weak$$choice2 = __VERIFIER_nondet_bool()
[L763]               2  y$flush_delayed = weak$$choice2
[L764]               2  y$mem_tmp = y
[L765]               2  y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1)
[L766]               2  y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0))
[L767]               2  y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1))
[L768]               2  y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used))
[L769]               2  y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))
[L770]               2  y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2))
[L771]               2  y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))
[L772]               2  __unbuffered_p1_EAX = y
[L773]               2  y = y$flush_delayed ? y$mem_tmp : y
[L774]               2  y$flush_delayed = (_Bool)0
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L779]               2  __unbuffered_cnt = __unbuffered_cnt + 1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L781]               2  return 0;
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L801]               3  y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y)
[L802]               3  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used
[L803]               3  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used
[L804]               3  y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3
[L805]               3  y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L808]               3  __unbuffered_cnt = __unbuffered_cnt + 1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L810]               3  return 0;
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L751]               1  __unbuffered_cnt = __unbuffered_cnt + 1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L830]               0  main$tmp_guard0 = __unbuffered_cnt == 3
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1394=-2, t1395=-1, t1396=0, weak$$choice0=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L832]  CALL         0  assume_abort_if_not(main$tmp_guard0)
[L3]    COND FALSE   0  !(!cond)
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \old(cond)=1, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L832]  RET          0  assume_abort_if_not(main$tmp_guard0)
[L834]               0  y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y)
[L835]               0  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used
[L836]               0  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used
[L837]               0  y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0
[L838]               0  y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1394=-2, t1395=-1, t1396=0, weak$$choice0=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L841]               0  main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0)
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1394=-2, t1395=-1, t1396=0, weak$$choice0=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L843]  CALL         0  __VERIFIER_assert(main$tmp_guard1)
[L18]   COND TRUE    0  !expression
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L18]                0  reach_error()
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]

  - UnprovableResult [Line: 824]: Unable to prove that petrification did provide enough thread instances (tool internal message)
    Unable to prove that petrification did provide enough thread instances (tool internal message)
 Reason: Not analyzed. 
  - UnprovableResult [Line: 828]: Unable to prove that petrification did provide enough thread instances (tool internal message)
    Unable to prove that petrification did provide enough thread instances (tool internal message)
 Reason: Not analyzed. 
  - UnprovableResult [Line: 826]: Unable to prove that petrification did provide enough thread instances (tool internal message)
    Unable to prove that petrification did provide enough thread instances (tool internal message)
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: P2Thread1of1ForFork1 with 1 thread instances
    CFG has 7 procedures, 132 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 25.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 24.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 235 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: CheckTime: 0.0s, ConditionCalculationTime: 0.0s, CommutingCounterexamples: 0, ConditionCalculations: 0, TraceChecks: 0, UnknownTraceChecks: 0, ImperfectProofs: 0, QuantifiedConditions: 0, FalseConditions: 0
  - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances
    CFG has 7 procedures, 132 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 32.2s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 29.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 38, 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, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 504 NumberOfCodeBlocks, 504 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 411 ConstructedInterpolants, 0 QuantifiedInterpolants, 1470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: CheckTime: 0.0s, ConditionCalculationTime: 0.0s, CommutingCounterexamples: 0, ConditionCalculations: 0, TraceChecks: 0, UnknownTraceChecks: 0, ImperfectProofs: 0, QuantifiedConditions: 0, FalseConditions: 0
RESULT: Ultimate proved your program to be incorrect!
[2024-11-14 12:05:07,547 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...