/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistent.epf --traceabstraction.dfs.order.used.in.por PSEUDO_LOCKSTEP --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-complex/bounded_buffer.i


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


This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m
[2023-11-17 13:16:49,945 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-17 13:16:50,003 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistent.epf
[2023-11-17 13:16:50,009 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-17 13:16:50,009 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-17 13:16:50,049 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-17 13:16:50,049 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-17 13:16:50,050 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-17 13:16:50,051 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-17 13:16:50,054 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-17 13:16:50,055 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-17 13:16:50,055 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-17 13:16:50,056 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-17 13:16:50,057 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-17 13:16:50,057 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-17 13:16:50,057 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-17 13:16:50,057 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-17 13:16:50,058 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-17 13:16:50,058 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-17 13:16:50,058 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-17 13:16:50,058 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-17 13:16:50,059 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-17 13:16:50,059 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-17 13:16:50,059 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-17 13:16:50,059 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-17 13:16:50,060 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-17 13:16:50,060 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-17 13:16:50,060 INFO  L153        SettingsManager]:  * To the following directory=./dump/
[2023-11-17 13:16:50,060 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-17 13:16:50,061 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-17 13:16:50,062 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-17 13:16:50,062 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-17 13:16:50,062 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-17 13:16:50,062 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-17 13:16:50,062 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-17 13:16:50,062 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-17 13:16:50,062 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2023-11-17 13:16:50,063 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-17 13:16:50,063 INFO  L153        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2023-11-17 13:16:50,063 INFO  L153        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES
[2023-11-17 13:16:50,063 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> PSEUDO_LOCKSTEP
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true
[2023-11-17 13:16:50,304 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-17 13:16:50,328 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-17 13:16:50,330 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-17 13:16:50,333 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-17 13:16:50,333 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-17 13:16:50,334 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/bounded_buffer.i
[2023-11-17 13:16:51,437 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-17 13:16:51,790 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-17 13:16:51,790 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i
[2023-11-17 13:16:51,812 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4a27fb5/49aaf23923d341509144735b215f9dda/FLAG1539a428b
[2023-11-17 13:16:51,828 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4a27fb5/49aaf23923d341509144735b215f9dda
[2023-11-17 13:16:51,830 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-17 13:16:51,831 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-11-17 13:16:51,835 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-17 13:16:51,835 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-17 13:16:51,839 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-17 13:16:51,840 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:16:51" (1/1) ...
[2023-11-17 13:16:51,841 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@213539bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:51, skipping insertion in model container
[2023-11-17 13:16:51,841 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:16:51" (1/1) ...
[2023-11-17 13:16:51,894 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-17 13:16:52,489 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i[70002,70015]
[2023-11-17 13:16:52,595 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-17 13:16:52,612 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-17 13:16:52,676 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i[70002,70015]
[2023-11-17 13:16:52,698 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-17 13:16:52,776 WARN  L675               CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler.
[2023-11-17 13:16:52,782 INFO  L206         MainTranslator]: Completed translation
[2023-11-17 13:16:52,782 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:52 WrapperNode
[2023-11-17 13:16:52,783 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-17 13:16:52,784 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-17 13:16:52,784 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-17 13:16:52,784 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-17 13:16:52,789 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:52" (1/1) ...
[2023-11-17 13:16:52,813 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:52" (1/1) ...
[2023-11-17 13:16:52,853 INFO  L138                Inliner]: procedures = 429, calls = 136, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 476
[2023-11-17 13:16:52,853 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-17 13:16:52,854 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-17 13:16:52,854 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-17 13:16:52,854 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-17 13:16:52,863 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:52" (1/1) ...
[2023-11-17 13:16:52,863 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:52" (1/1) ...
[2023-11-17 13:16:52,872 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:52" (1/1) ...
[2023-11-17 13:16:52,873 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:52" (1/1) ...
[2023-11-17 13:16:52,889 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:52" (1/1) ...
[2023-11-17 13:16:52,910 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:52" (1/1) ...
[2023-11-17 13:16:52,914 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:52" (1/1) ...
[2023-11-17 13:16:52,917 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:52" (1/1) ...
[2023-11-17 13:16:52,921 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-17 13:16:52,922 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-17 13:16:52,922 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-17 13:16:52,922 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-17 13:16:52,923 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:52" (1/1) ...
[2023-11-17 13:16:52,944 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-17 13:16:52,954 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-17 13:16:52,972 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-17 13:16:52,996 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-17 13:16:53,007 INFO  L130     BoogieDeclarations]: Found specification of procedure producer_routine
[2023-11-17 13:16:53,008 INFO  L138     BoogieDeclarations]: Found implementation of procedure producer_routine
[2023-11-17 13:16:53,008 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-17 13:16:53,008 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-11-17 13:16:53,008 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-11-17 13:16:53,008 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-17 13:16:53,008 INFO  L130     BoogieDeclarations]: Found specification of procedure fflush
[2023-11-17 13:16:53,008 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-17 13:16:53,009 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-11-17 13:16:53,009 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-17 13:16:53,010 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-17 13:16:53,010 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-17 13:16:53,011 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-17 13:16:53,011 INFO  L130     BoogieDeclarations]: Found specification of procedure consumer_routine
[2023-11-17 13:16:53,011 INFO  L138     BoogieDeclarations]: Found implementation of procedure consumer_routine
[2023-11-17 13:16:53,011 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2023-11-17 13:16:53,011 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-11-17 13:16:53,011 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-17 13:16:53,013 WARN  L211             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-11-17 13:16:53,235 INFO  L239             CfgBuilder]: Building ICFG
[2023-11-17 13:16:53,237 INFO  L265             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-17 13:16:53,847 INFO  L280             CfgBuilder]: Performing block encoding
[2023-11-17 13:16:54,274 INFO  L302             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-17 13:16:54,275 INFO  L307             CfgBuilder]: Removed 11 assume(true) statements.
[2023-11-17 13:16:54,276 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:16:54 BoogieIcfgContainer
[2023-11-17 13:16:54,276 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-17 13:16:54,278 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-17 13:16:54,278 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-17 13:16:54,281 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-17 13:16:54,282 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 01:16:51" (1/3) ...
[2023-11-17 13:16:54,282 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122b8b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:16:54, skipping insertion in model container
[2023-11-17 13:16:54,283 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:16:52" (2/3) ...
[2023-11-17 13:16:54,283 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122b8b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:16:54, skipping insertion in model container
[2023-11-17 13:16:54,283 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:16:54" (3/3) ...
[2023-11-17 13:16:54,284 INFO  L112   eAbstractionObserver]: Analyzing ICFG bounded_buffer.i
[2023-11-17 13:16:54,293 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-17 13:16:54,303 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-17 13:16:54,303 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-17 13:16:54,303 INFO  L514   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-17 13:16:54,424 INFO  L144    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2023-11-17 13:16:54,468 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-17 13:16:54,468 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2023-11-17 13:16:54,468 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-17 13:16:54,475 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2023-11-17 13:16:54,491 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2023-11-17 13:16:54,513 INFO  L159   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2023-11-17 13:16:54,524 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2023-11-17 13:16:54,530 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@7c85c7d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-17 13:16:54,531 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-17 13:16:54,817 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-11-17 13:16:54,822 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-17 13:16:54,822 INFO  L85        PathProgramCache]: Analyzing trace with hash 926968400, now seen corresponding path program 1 times
[2023-11-17 13:16:54,830 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-17 13:16:54,831 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932961322]
[2023-11-17 13:16:54,831 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-17 13:16:54,831 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-17 13:16:55,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-17 13:16:55,082 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-17 13:16:55,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-17 13:16:55,209 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-17 13:16:55,211 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-11-17 13:16:55,212 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining)
[2023-11-17 13:16:55,214 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining)
[2023-11-17 13:16:55,215 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-17 13:16:55,224 INFO  L445         BasicCegarLoop]: Path program histogram: [1]
[2023-11-17 13:16:55,226 INFO  L307   ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/2)
[2023-11-17 13:16:55,227 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-17 13:16:55,227 INFO  L514   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-11-17 13:16:55,336 INFO  L144    ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions.
[2023-11-17 13:16:55,340 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-17 13:16:55,341 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2023-11-17 13:16:55,341 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-17 13:16:55,387 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2023-11-17 13:16:55,395 INFO  L159   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2023-11-17 13:16:55,395 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == consumer_routineThread2of2ForFork1 ========
[2023-11-17 13:16:55,396 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@7c85c7d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-17 13:16:55,396 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-17 13:16:55,412 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process
[2023-11-17 13:17:47,659 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-17 13:17:47,660 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-17 13:17:47,660 INFO  L85        PathProgramCache]: Analyzing trace with hash -907571663, now seen corresponding path program 1 times
[2023-11-17 13:17:47,660 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-17 13:17:47,660 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389173016]
[2023-11-17 13:17:47,661 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-17 13:17:47,661 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-17 13:17:47,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-17 13:17:47,948 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-17 13:17:47,948 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389173016]
[2023-11-17 13:17:47,949 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-11-17 13:17:47,949 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115879181]
[2023-11-17 13:17:47,949 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-17 13:17:47,949 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-17 13:17:47,950 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-17 13:17:47,952 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-17 13:17:47,988 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-17 13:17:49,130 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-17 13:17:49,150 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3372 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-17 13:17:49,167 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-17 13:17:49,261 INFO  L134       CoverageAnalysis]: Checked inductivity of 2023 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 1876 trivial. 0 not checked.
[2023-11-17 13:17:49,261 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-17 13:17:49,262 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [115879181] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-17 13:17:49,262 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-17 13:17:49,262 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-17 13:17:49,262 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405193962]
[2023-11-17 13:17:49,263 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-17 13:17:49,270 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-17 13:17:49,271 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-17 13:17:49,292 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-17 13:17:49,292 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2023-11-17 13:17:49,293 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-17 13:17:49,294 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-11-17 13:17:49,295 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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)
[2023-11-17 13:17:49,295 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-11-17 13:17:54,171 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-17 13:17:54,185 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-17 13:17:54,372 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-17 13:17:54,372 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-17 13:17:54,373 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-17 13:17:54,373 INFO  L85        PathProgramCache]: Analyzing trace with hash -1746680858, now seen corresponding path program 1 times
[2023-11-17 13:17:54,373 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-17 13:17:54,373 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683868456]
[2023-11-17 13:17:54,373 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-17 13:17:54,374 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-17 13:17:54,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-17 13:17:54,603 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-17 13:17:54,604 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683868456]
[2023-11-17 13:17:54,604 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-11-17 13:17:54,604 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33996492]
[2023-11-17 13:17:54,604 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-17 13:17:54,604 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-17 13:17:54,604 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-17 13:17:54,608 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-17 13:17:54,610 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-17 13:17:55,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-17 13:17:55,505 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2673 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-17 13:17:55,514 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-17 13:17:55,599 INFO  L134       CoverageAnalysis]: Checked inductivity of 1213 backedges. 504 proven. 0 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked.
[2023-11-17 13:17:55,600 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-17 13:17:55,600 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [33996492] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-17 13:17:55,600 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-17 13:17:55,600 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-11-17 13:17:55,600 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906258456]
[2023-11-17 13:17:55,604 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-17 13:17:55,605 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-17 13:17:55,605 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-17 13:17:55,606 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-17 13:17:55,606 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2023-11-17 13:17:55,606 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-17 13:17:55,610 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-11-17 13:17:55,611 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 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)
[2023-11-17 13:17:55,611 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2023-11-17 13:17:55,611 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-11-17 13:20:28,111 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-17 13:20:28,112 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-17 13:20:28,124 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-11-17 13:20:28,324 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-17 13:20:28,324 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-17 13:20:28,325 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-17 13:20:28,325 INFO  L85        PathProgramCache]: Analyzing trace with hash 1801858360, now seen corresponding path program 1 times
[2023-11-17 13:20:28,325 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-17 13:20:28,325 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303113589]
[2023-11-17 13:20:28,325 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-17 13:20:28,326 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-17 13:20:28,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-17 13:20:28,664 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2023-11-17 13:20:28,664 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-17 13:20:28,665 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303113589]
[2023-11-17 13:20:28,665 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303113589] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-17 13:20:28,665 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130819799]
[2023-11-17 13:20:28,665 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-17 13:20:28,665 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-17 13:20:28,665 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-17 13:20:28,669 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-17 13:20:28,673 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-11-17 13:20:29,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-17 13:20:29,193 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-17 13:20:29,196 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-17 13:20:29,285 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-11-17 13:20:29,286 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-17 13:20:29,286 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [130819799] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-17 13:20:29,286 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-17 13:20:29,286 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9
[2023-11-17 13:20:29,286 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176491455]
[2023-11-17 13:20:29,286 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-17 13:20:29,287 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-17 13:20:29,287 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-17 13:20:29,288 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-17 13:20:29,288 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2023-11-17 13:20:29,288 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-17 13:20:29,288 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-11-17 13:20:29,288 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 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)
[2023-11-17 13:20:29,288 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2023-11-17 13:20:29,289 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-11-17 13:20:29,289 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2023-11-17 13:20:35,917 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-17 13:20:35,918 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-17 13:20:35,925 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-17 13:20:35,933 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2023-11-17 13:20:36,129 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-17 13:20:36,129 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-17 13:20:36,129 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-17 13:20:36,130 INFO  L85        PathProgramCache]: Analyzing trace with hash 597231521, now seen corresponding path program 1 times
[2023-11-17 13:20:36,130 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-17 13:20:36,130 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625961642]
[2023-11-17 13:20:36,130 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-17 13:20:36,130 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-17 13:20:36,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-17 13:20:36,354 INFO  L134       CoverageAnalysis]: Checked inductivity of 79 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked.
[2023-11-17 13:20:36,354 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-17 13:20:36,354 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625961642]
[2023-11-17 13:20:36,354 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625961642] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-17 13:20:36,354 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610052123]
[2023-11-17 13:20:36,354 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-17 13:20:36,355 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-17 13:20:36,355 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-11-17 13:20:36,356 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-17 13:20:36,362 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-11-17 13:20:36,918 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-17 13:20:36,924 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-11-17 13:20:36,926 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-17 13:20:36,950 INFO  L134       CoverageAnalysis]: Checked inductivity of 79 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked.
[2023-11-17 13:20:36,950 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-17 13:20:36,975 INFO  L134       CoverageAnalysis]: Checked inductivity of 79 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked.
[2023-11-17 13:20:36,976 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610052123] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-17 13:20:36,978 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-17 13:20:36,978 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4
[2023-11-17 13:20:36,978 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175028784]
[2023-11-17 13:20:36,978 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-17 13:20:36,979 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-17 13:20:36,979 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-17 13:20:36,980 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-17 13:20:36,980 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-17 13:20:36,980 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-17 13:20:36,980 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2023-11-17 13:20:36,981 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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)
[2023-11-17 13:20:36,981 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2023-11-17 13:20:36,981 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-11-17 13:20:36,981 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2023-11-17 13:20:36,981 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.