/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/rfi004.i


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


This is Ultimate 0.3.0-wip.dk.conditional-comm-aee53f6
[2024-11-15 21:55:32,960 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-15 21:55:33,003 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf
[2024-11-15 21:55:33,007 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-15 21:55:33,007 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-15 21:55:33,029 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-15 21:55:33,030 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-15 21:55:33,030 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-15 21:55:33,030 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-15 21:55:33,030 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-15 21:55:33,030 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-15 21:55:33,030 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-15 21:55:33,031 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-15 21:55:33,031 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-15 21:55:33,031 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-15 21:55:33,031 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-15 21:55:33,031 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-15 21:55:33,031 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-15 21:55:33,031 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-15 21:55:33,031 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-15 21:55:33,032 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-15 21:55:33,032 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-15 21:55:33,033 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-15 21:55:33,033 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-15 21:55:33,033 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-15 21:55:33,033 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-15 21:55:33,033 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-15 21:55:33,033 INFO  L153        SettingsManager]:  * To the following directory=./dump/
[2024-11-15 21:55:33,033 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-15 21:55:33,033 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-15 21:55:33,033 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-15 21:55:33,034 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-15 21:55:33,034 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-15 21:55:33,034 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-15 21:55:33,034 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-15 21:55:33,034 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-15 21:55:33,034 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2024-11-15 21:55:33,034 INFO  L153        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2024-11-15 21:55:33,034 INFO  L153        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2024-11-15 21:55:33,034 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
[2024-11-15 21:55:33,229 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-15 21:55:33,235 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-15 21:55:33,237 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-15 21:55:33,237 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-15 21:55:33,237 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-15 21:55:33,238 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi004.i
[2024-11-15 21:55:34,319 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-15 21:55:34,618 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-15 21:55:34,619 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-wmm/rfi004.i
[2024-11-15 21:55:34,632 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/7d8ccc0f6/9ed0c16fd6ce4337964ef7dd84ff1775/FLAGdae712ccb
[2024-11-15 21:55:34,904 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/7d8ccc0f6/9ed0c16fd6ce4337964ef7dd84ff1775
[2024-11-15 21:55:34,905 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-15 21:55:34,906 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-15 21:55:34,907 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-15 21:55:34,907 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-15 21:55:34,910 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-15 21:55:34,910 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:55:34" (1/1) ...
[2024-11-15 21:55:34,911 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d05f34b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:34, skipping insertion in model container
[2024-11-15 21:55:34,911 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:55:34" (1/1) ...
[2024-11-15 21:55:34,943 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-15 21:55:35,040 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/rfi004.i[983,996]
[2024-11-15 21:55:35,128 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-15 21:55:35,134 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-15 21:55:35,141 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/rfi004.i[983,996]
[2024-11-15 21:55:35,183 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-15 21:55:35,209 INFO  L204         MainTranslator]: Completed translation
[2024-11-15 21:55:35,210 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:35 WrapperNode
[2024-11-15 21:55:35,210 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-15 21:55:35,210 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-15 21:55:35,210 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-15 21:55:35,211 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-15 21:55:35,214 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:35" (1/1) ...
[2024-11-15 21:55:35,222 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:35" (1/1) ...
[2024-11-15 21:55:35,236 INFO  L138                Inliner]: procedures = 174, calls = 39, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 112
[2024-11-15 21:55:35,236 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-15 21:55:35,236 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-15 21:55:35,236 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-15 21:55:35,236 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-15 21:55:35,241 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:35" (1/1) ...
[2024-11-15 21:55:35,241 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:35" (1/1) ...
[2024-11-15 21:55:35,243 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:35" (1/1) ...
[2024-11-15 21:55:35,243 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:35" (1/1) ...
[2024-11-15 21:55:35,246 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:35" (1/1) ...
[2024-11-15 21:55:35,248 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:35" (1/1) ...
[2024-11-15 21:55:35,249 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:35" (1/1) ...
[2024-11-15 21:55:35,249 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:35" (1/1) ...
[2024-11-15 21:55:35,251 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-15 21:55:35,251 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-15 21:55:35,251 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-15 21:55:35,251 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-15 21:55:35,252 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:35" (1/1) ...
[2024-11-15 21:55:35,256 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-15 21:55:35,270 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3
[2024-11-15 21:55:35,279 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)
[2024-11-15 21:55:35,283 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
[2024-11-15 21:55:35,295 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-15 21:55:35,296 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-15 21:55:35,296 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2024-11-15 21:55:35,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2024-11-15 21:55:35,296 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2024-11-15 21:55:35,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2024-11-15 21:55:35,296 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-11-15 21:55:35,296 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-15 21:55:35,296 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-15 21:55:35,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-15 21:55:35,297 WARN  L207             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-15 21:55:35,410 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-15 21:55:35,412 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-15 21:55:35,628 INFO  L283             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-15 21:55:35,628 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-15 21:55:35,741 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-15 21:55:35,741 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-15 21:55:35,742 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:55:35 BoogieIcfgContainer
[2024-11-15 21:55:35,742 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-15 21:55:35,745 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-15 21:55:35,745 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-15 21:55:35,748 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-15 21:55:35,749 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:55:34" (1/3) ...
[2024-11-15 21:55:35,749 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717d1b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:55:35, skipping insertion in model container
[2024-11-15 21:55:35,749 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:55:35" (2/3) ...
[2024-11-15 21:55:35,749 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717d1b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:55:35, skipping insertion in model container
[2024-11-15 21:55:35,749 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:55:35" (3/3) ...
[2024-11-15 21:55:35,750 INFO  L112   eAbstractionObserver]: Analyzing ICFG rfi004.i
[2024-11-15 21:55:35,760 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-15 21:55:35,761 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to ICFG rfi004.i that has 3 procedures, 91 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-11-15 21:55:35,762 INFO  L492   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-15 21:55:35,804 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-15 21:55:35,840 INFO  L126   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-15 21:55:35,840 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-11-15 21:55:35,841 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3
[2024-11-15 21:55:35,844 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)
[2024-11-15 21:55:35,845 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
[2024-11-15 21:55:35,913 INFO  L181   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-11-15 21:55:35,925 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-11-15 21:55:35,931 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;@3383be31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-15 21:55:35,931 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2024-11-15 21:55:39,834 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-15 21:55:39,835 INFO  L312   artialOrderCegarLoop]: Trying commutativity condition synthesis.
[2024-11-15 21:55:39,835 INFO  L132   ounterexampleChecker]: Examining path program with hash 2130731035, occurence #1
[2024-11-15 21:55:39,835 INFO  L134   ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping...
[2024-11-15 21:55:39,835 INFO  L322   artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check.
[2024-11-15 21:55:39,840 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-15 21:55:39,840 INFO  L85        PathProgramCache]: Analyzing trace with hash 1118079533, now seen corresponding path program 1 times
[2024-11-15 21:55:39,845 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-15 21:55:39,847 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958752178]
[2024-11-15 21:55:39,847 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-15 21:55:39,848 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-15 21:55:39,915 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-15 21:55:40,006 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-15 21:55:40,007 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-15 21:55:40,007 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958752178]
[2024-11-15 21:55:40,008 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958752178] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-15 21:55:40,008 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-15 21:55:40,008 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-15 21:55:40,009 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379272118]
[2024-11-15 21:55:40,010 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-15 21:55:40,013 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-15 21:55:40,013 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-15 21:55:40,029 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-15 21:55:40,030 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-15 21:55:40,030 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:40,031 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-15 21:55:40,032 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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)
[2024-11-15 21:55:40,032 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:40,057 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:40,057 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-15 21:55:40,057 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-15 21:55:40,057 INFO  L312   artialOrderCegarLoop]: Trying commutativity condition synthesis.
[2024-11-15 21:55:40,057 INFO  L132   ounterexampleChecker]: Examining path program with hash -1054746580, occurence #1
[2024-11-15 21:55:40,058 INFO  L134   ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping...
[2024-11-15 21:55:40,058 INFO  L322   artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check.
[2024-11-15 21:55:40,058 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-15 21:55:40,058 INFO  L85        PathProgramCache]: Analyzing trace with hash -1202952694, now seen corresponding path program 1 times
[2024-11-15 21:55:40,058 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-15 21:55:40,058 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524193769]
[2024-11-15 21:55:40,058 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-15 21:55:40,058 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-15 21:55:40,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-15 21:55:40,439 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-15 21:55:40,439 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-15 21:55:40,439 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524193769]
[2024-11-15 21:55:40,439 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524193769] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-15 21:55:40,439 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-15 21:55:40,439 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-15 21:55:40,439 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860195170]
[2024-11-15 21:55:40,439 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-15 21:55:40,440 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-15 21:55:40,440 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-15 21:55:40,446 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-15 21:55:40,446 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-15 21:55:40,446 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:40,446 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-15 21:55:40,446 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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)
[2024-11-15 21:55:40,447 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:40,447 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:42,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:42,892 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-15 21:55:42,892 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-15 21:55:42,892 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-15 21:55:42,893 INFO  L312   artialOrderCegarLoop]: Trying commutativity condition synthesis.
[2024-11-15 21:55:42,893 INFO  L132   ounterexampleChecker]: Examining path program with hash -1377138296, occurence #1
[2024-11-15 21:55:42,893 INFO  L134   ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping...
[2024-11-15 21:55:42,893 INFO  L322   artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check.
[2024-11-15 21:55:42,893 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-15 21:55:42,893 INFO  L85        PathProgramCache]: Analyzing trace with hash 350501725, now seen corresponding path program 1 times
[2024-11-15 21:55:42,893 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-15 21:55:42,893 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324770627]
[2024-11-15 21:55:42,893 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-15 21:55:42,893 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-15 21:55:42,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-15 21:55:43,123 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-15 21:55:43,123 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-15 21:55:43,123 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324770627]
[2024-11-15 21:55:43,123 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324770627] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-15 21:55:43,123 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-15 21:55:43,123 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-15 21:55:43,123 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624420680]
[2024-11-15 21:55:43,123 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-15 21:55:43,124 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-15 21:55:43,124 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-15 21:55:43,124 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-15 21:55:43,124 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-11-15 21:55:43,124 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:43,124 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-15 21:55:43,125 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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)
[2024-11-15 21:55:43,125 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:43,125 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-11-15 21:55:43,125 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:46,124 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:46,125 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-15 21:55:46,125 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-15 21:55:46,125 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-15 21:55:46,125 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-15 21:55:46,125 INFO  L312   artialOrderCegarLoop]: Trying commutativity condition synthesis.
[2024-11-15 21:55:46,125 INFO  L132   ounterexampleChecker]: Examining path program with hash 497924267, occurence #1
[2024-11-15 21:55:46,125 INFO  L134   ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping...
[2024-11-15 21:55:46,126 INFO  L322   artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check.
[2024-11-15 21:55:46,126 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-15 21:55:46,126 INFO  L85        PathProgramCache]: Analyzing trace with hash 2020273696, now seen corresponding path program 1 times
[2024-11-15 21:55:46,126 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-15 21:55:46,126 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297336933]
[2024-11-15 21:55:46,126 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-15 21:55:46,126 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-15 21:55:46,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-15 21:55:46,724 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-15 21:55:46,725 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-15 21:55:46,725 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297336933]
[2024-11-15 21:55:46,725 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297336933] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-15 21:55:46,725 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-15 21:55:46,725 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-15 21:55:46,725 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696354547]
[2024-11-15 21:55:46,725 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-15 21:55:46,725 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-15 21:55:46,725 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-15 21:55:46,726 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-15 21:55:46,726 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2024-11-15 21:55:46,726 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:46,726 INFO  L471      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-15 21:55:46,726 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 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)
[2024-11-15 21:55:46,726 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:46,726 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2024-11-15 21:55:46,726 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2024-11-15 21:55:46,726 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:51,045 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-15 21:55:51,045 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-15 21:55:51,045 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-15 21:55:51,045 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-15 21:55:51,045 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-15 21:55:51,045 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2024-11-15 21:55:51,045 INFO  L312   artialOrderCegarLoop]: Trying commutativity condition synthesis.
[2024-11-15 21:55:51,045 INFO  L132   ounterexampleChecker]: Examining path program with hash 1715172977, occurence #1
[2024-11-15 21:55:51,046 INFO  L134   ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping...
[2024-11-15 21:55:51,046 INFO  L322   artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check.
[2024-11-15 21:55:51,046 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-15 21:55:51,046 INFO  L85        PathProgramCache]: Analyzing trace with hash -93180256, now seen corresponding path program 2 times
[2024-11-15 21:55:51,046 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-15 21:55:51,046 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240777247]
[2024-11-15 21:55:51,046 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-15 21:55:51,046 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-15 21:55:51,087 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-15 21:55:51,087 INFO  L357             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-15 21:55:51,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-15 21:55:51,153 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-15 21:55:51,153 INFO  L340         BasicCegarLoop]: Counterexample is feasible
[2024-11-15 21:55:51,154 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2024-11-15 21:55:51,155 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining)
[2024-11-15 21:55:51,155 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining)
[2024-11-15 21:55:51,155 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-15 21:55:51,160 INFO  L422         BasicCegarLoop]: Path program histogram: [2, 1, 1, 1]
[2024-11-15 21:55:51,161 INFO  L320   ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (1/2)
[2024-11-15 21:55:51,223 INFO  L242   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-15 21:55:51,223 INFO  L173   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-15 21:55:51,252 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
[2024-11-15 21:55:51,253 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:55:51 BasicIcfg
[2024-11-15 21:55:51,253 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-15 21:55:51,254 INFO  L158              Benchmark]: Toolchain (without parser) took 16347.02ms. Allocated memory was 100.7MB in the beginning and 541.1MB in the end (delta: 440.4MB). Free memory was 70.2MB in the beginning and 370.1MB in the end (delta: -299.9MB). Peak memory consumption was 137.8MB. Max. memory is 8.0GB.
[2024-11-15 21:55:51,254 INFO  L158              Benchmark]: CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 8.0GB.
[2024-11-15 21:55:51,254 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 303.04ms. Allocated memory is still 100.7MB. Free memory was 70.2MB in the beginning and 47.6MB in the end (delta: 22.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB.
[2024-11-15 21:55:51,255 INFO  L158              Benchmark]: Boogie Procedure Inliner took 25.63ms. Allocated memory is still 100.7MB. Free memory was 47.6MB in the beginning and 45.6MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
[2024-11-15 21:55:51,255 INFO  L158              Benchmark]: Boogie Preprocessor took 14.27ms. Allocated memory is still 100.7MB. Free memory was 45.6MB in the beginning and 44.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB.
[2024-11-15 21:55:51,255 INFO  L158              Benchmark]: RCFGBuilder took 490.58ms. Allocated memory is still 100.7MB. Free memory was 44.2MB in the beginning and 60.9MB in the end (delta: -16.7MB). Peak memory consumption was 30.2MB. Max. memory is 8.0GB.
[2024-11-15 21:55:51,255 INFO  L158              Benchmark]: TraceAbstraction took 15507.44ms. Allocated memory was 100.7MB in the beginning and 541.1MB in the end (delta: 440.4MB). Free memory was 60.4MB in the beginning and 370.1MB in the end (delta: -309.7MB). Peak memory consumption was 128.6MB. Max. memory is 8.0GB.
[2024-11-15 21:55:51,256 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 303.04ms. Allocated memory is still 100.7MB. Free memory was 70.2MB in the beginning and 47.6MB in the end (delta: 22.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 25.63ms. Allocated memory is still 100.7MB. Free memory was 47.6MB in the beginning and 45.6MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 14.27ms. Allocated memory is still 100.7MB. Free memory was 45.6MB in the beginning and 44.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB.
 * RCFGBuilder took 490.58ms. Allocated memory is still 100.7MB. Free memory was 44.2MB in the beginning and 60.9MB in the end (delta: -16.7MB). Peak memory consumption was 30.2MB. Max. memory is 8.0GB.
 * TraceAbstraction took 15507.44ms. Allocated memory was 100.7MB in the beginning and 541.1MB in the end (delta: 440.4MB). Free memory was 60.4MB in the beginning and 370.1MB in the end (delta: -309.7MB). Peak memory consumption was 128.6MB. 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: 1405, independent: 1365, independent conditional: 585, independent unconditional: 780, dependent: 40, dependent conditional: 24, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1392, independent: 1365, independent conditional: 585, independent unconditional: 780, dependent: 27, dependent conditional: 11, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1392, independent: 1365, independent conditional: 585, independent unconditional: 780, dependent: 27, dependent conditional: 11, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1419, independent: 1365, independent conditional: 585, independent unconditional: 780, dependent: 54, dependent conditional: 38, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1419, independent: 1365, independent conditional: 3, independent unconditional: 1362, dependent: 54, dependent conditional: 11, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1419, independent: 1365, independent conditional: 3, independent unconditional: 1362, dependent: 54, dependent conditional: 11, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 801, independent: 783, independent conditional: 3, independent unconditional: 780, dependent: 18, dependent conditional: 2, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 801, independent: 777, independent conditional: 0, independent unconditional: 777, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 24, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 18, dependent conditional: 2, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 24, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 18, dependent conditional: 2, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13187, independent: 53, independent conditional: 21, independent unconditional: 32, dependent: 13134, dependent conditional: 1398, dependent unconditional: 11736, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 1419, independent: 582, independent conditional: 0, independent unconditional: 582, dependent: 36, dependent conditional: 9, dependent unconditional: 27, unknown: 801, unknown conditional: 5, unknown unconditional: 796] , Statistics on independence cache: Total cache size (in pairs): 801, Positive cache size: 783, Positive conditional cache size: 3, Positive unconditional cache size: 780, Negative cache size: 18, Negative conditional cache size: 2, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 609, Maximal queried relation: 2, Independence queries for same thread: 13, Persistent sets #1 benchmarks: Persistent set computation time: 11.8s, Number of persistent set computation: 224, Number of trivial persistent sets: 96, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 796, independent: 780, independent conditional: 0, independent unconditional: 780, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1405, independent: 1365, independent conditional: 585, independent unconditional: 780, dependent: 40, dependent conditional: 24, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1392, independent: 1365, independent conditional: 585, independent unconditional: 780, dependent: 27, dependent conditional: 11, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1392, independent: 1365, independent conditional: 585, independent unconditional: 780, dependent: 27, dependent conditional: 11, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1419, independent: 1365, independent conditional: 585, independent unconditional: 780, dependent: 54, dependent conditional: 38, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1419, independent: 1365, independent conditional: 3, independent unconditional: 1362, dependent: 54, dependent conditional: 11, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1419, independent: 1365, independent conditional: 3, independent unconditional: 1362, dependent: 54, dependent conditional: 11, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 801, independent: 783, independent conditional: 3, independent unconditional: 780, dependent: 18, dependent conditional: 2, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 801, independent: 777, independent conditional: 0, independent unconditional: 777, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 24, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 18, dependent conditional: 2, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 24, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 18, dependent conditional: 2, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13187, independent: 53, independent conditional: 21, independent unconditional: 32, dependent: 13134, dependent conditional: 1398, dependent unconditional: 11736, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Protected Queries: 0 ], Cache Queries: [ total: 1419, independent: 582, independent conditional: 0, independent unconditional: 582, dependent: 36, dependent conditional: 9, dependent unconditional: 27, unknown: 801, unknown conditional: 5, unknown unconditional: 796] , Statistics on independence cache: Total cache size (in pairs): 801, Positive cache size: 783, Positive conditional cache size: 3, Positive unconditional cache size: 780, Negative cache size: 18, Negative conditional cache size: 2, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 609, Maximal queried relation: 2, Independence queries for same thread: 13
  - CounterExampleResult [Line: 19]: 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_p0_EAX = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0]
[L713]               0  int __unbuffered_p1_EAX = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0]
[L715]               0  int __unbuffered_p1_EBX = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0]
[L716]               0  _Bool main$tmp_guard0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0]
[L717]               0  _Bool main$tmp_guard1;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0]
[L719]               0  int x = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0]
[L721]               0  int y = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0]
[L722]               0  _Bool y$flush_delayed;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y=0]
[L723]               0  int y$mem_tmp;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y=0]
[L724]               0  _Bool y$r_buff0_thd0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y=0]
[L725]               0  _Bool y$r_buff0_thd1;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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]
[L726]               0  _Bool y$r_buff0_thd2;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$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]
[L727]               0  _Bool y$r_buff1_thd0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$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$r_buff1_thd0=0, y=0]
[L728]               0  _Bool y$r_buff1_thd1;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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_buff1_thd0=0, y$r_buff1_thd1=0, y=0]
[L729]               0  _Bool y$r_buff1_thd2;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y=0]
[L730]               0  _Bool y$read_delayed;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y=0]
[L731]               0  int *y$read_delayed_var;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y=0]
[L732]               0  int y$w_buff0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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$w_buff1;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$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$w_buff1_used;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0]
[L737]               0  int z = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$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$$choice0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$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_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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$$choice2;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L815]               0  pthread_t t1649;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L816]  FCALL, FORK  0  pthread_create(&t1649, ((void *)0), P0, ((void *)0))
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1649=-1, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L817]               0  pthread_t t1650;
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1649=-1, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L818]  FCALL, FORK  0  pthread_create(&t1650, ((void *)0), P1, ((void *)0))
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1649=-1, t1650=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L773]               2  y$w_buff1 = y$w_buff0
[L774]               2  y$w_buff0 = 1
[L775]               2  y$w_buff1_used = y$w_buff0_used
[L776]               2  y$w_buff0_used = (_Bool)1
[L777]  CALL         2  __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used))
[L19]   COND FALSE   2  !(!expression)
[L777]  RET          2  __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used))
[L778]               2  y$r_buff1_thd0 = y$r_buff0_thd0
[L779]               2  y$r_buff1_thd1 = y$r_buff0_thd1
[L780]               2  y$r_buff1_thd2 = y$r_buff0_thd2
[L781]               2  y$r_buff0_thd2 = (_Bool)1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L784]               2  z = 1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L787]               2  __unbuffered_p1_EAX = z
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L790]               2  __unbuffered_p1_EBX = x
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L743]               1  x = 1
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L748]               1  weak$$choice0 = __VERIFIER_nondet_bool()
[L749]               1  weak$$choice2 = __VERIFIER_nondet_bool()
[L750]               1  y$flush_delayed = weak$$choice2
[L751]               1  y$mem_tmp = y
[L752]               1  y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1)
[L753]               1  y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0))
[L754]               1  y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1))
[L755]               1  y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used))
[L756]               1  y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0))
[L757]               1  y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1))
[L758]               1  y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0))
[L759]               1  __unbuffered_p0_EAX = y
[L760]               1  y = y$flush_delayed ? y$mem_tmp : y
[L761]               1  y$flush_delayed = (_Bool)0
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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]
[L793]               2  y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)
[L794]               2  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used
[L795]               2  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used
[L796]               2  y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2
[L797]               2  y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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]
[L800]               2  __unbuffered_cnt = __unbuffered_cnt + 1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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]
[L802]               2  return 0;
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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]
[L766]               1  __unbuffered_cnt = __unbuffered_cnt + 1
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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]
[L820]               0  main$tmp_guard0 = __unbuffered_cnt == 2
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1649=-1, t1650=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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]
[L822]  CALL         0  assume_abort_if_not(main$tmp_guard0)
[L4]    COND FALSE   0  !(!cond)
        VAL             [\old(arg)={0:0}, \old(cond)=1, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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]
[L822]  RET          0  assume_abort_if_not(main$tmp_guard0)
[L824]               0  y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y)
[L825]               0  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used
[L826]               0  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used
[L827]               0  y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0
[L828]               0  y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1649=-1, t1650=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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]
[L831]               0  main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0)
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1649=-1, t1650=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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]
[L833]  CALL         0  __VERIFIER_assert(main$tmp_guard1)
[L19]   COND TRUE    0  !expression
        VAL             [\old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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]
[L19]                0  reach_error()
        VAL             [\old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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: 816]: 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: 818]: 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: ULTIMATE.start with 1 thread instances
    CFG has 5 procedures, 113 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 15.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 13.7s, 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: 27, 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, 1.2s InterpolantComputationTime, 349 NumberOfCodeBlocks, 349 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 269 ConstructedInterpolants, 0 QuantifiedInterpolants, 916 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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!
[2024-11-15 21:55:51,278 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...