/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i


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


This is Ultimate 0.2.3-dev-b8dbc81
[2023-01-27 19:04:27,888 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-01-27 19:04:27,889 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2023-01-27 19:04:27,926 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-01-27 19:04:27,929 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-01-27 19:04:27,932 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-01-27 19:04:27,934 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
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[2023-01-27 19:04:27,948 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-01-27 19:04:27,948 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-01-27 19:04:27,949 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-01-27 19:04:27,949 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-01-27 19:04:27,950 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-01-27 19:04:27,952 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-01-27 19:04:27,953 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-01-27 19:04:27,955 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-01-27 19:04:27,958 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-01-27 19:04:27,959 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-01-27 19:04:27,966 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2023-01-27 19:04:27,967 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2023-01-27 19:04:27,970 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
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[2023-01-27 19:04:27,971 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
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[2023-01-27 19:04:27,973 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2023-01-27 19:04:27,974 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-01-27 19:04:27,975 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf
[2023-01-27 19:04:28,004 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-01-27 19:04:28,004 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-01-27 19:04:28,005 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-01-27 19:04:28,005 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-01-27 19:04:28,006 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-01-27 19:04:28,006 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-01-27 19:04:28,006 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-01-27 19:04:28,007 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-01-27 19:04:28,007 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-01-27 19:04:28,007 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-01-27 19:04:28,008 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-01-27 19:04:28,008 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-01-27 19:04:28,008 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-01-27 19:04:28,008 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-01-27 19:04:28,008 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-01-27 19:04:28,008 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-01-27 19:04:28,008 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-01-27 19:04:28,008 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-01-27 19:04:28,008 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-01-27 19:04:28,009 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-01-27 19:04:28,009 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-01-27 19:04:28,009 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2023-01-27 19:04:28,009 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-01-27 19:04:28,009 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-01-27 19:04:28,009 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-01-27 19:04:28,009 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-01-27 19:04:28,009 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-01-27 19:04:28,010 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-01-27 19:04:28,010 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-01-27 19:04:28,010 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-01-27 19:04:28,010 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-01-27 19:04:28,010 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-01-27 19:04:28,238 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-01-27 19:04:28,254 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-01-27 19:04:28,256 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-01-27 19:04:28,257 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-01-27 19:04:28,257 INFO  L275        PluginConnector]: CDTParser initialized
[2023-01-27 19:04:28,258 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i
[2023-01-27 19:04:29,294 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-01-27 19:04:29,552 INFO  L351              CDTParser]: Found 1 translation units.
[2023-01-27 19:04:29,553 INFO  L172              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i
[2023-01-27 19:04:29,570 INFO  L394              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1604ce981/c6b892734c2540f6aa8fdd4898a171c6/FLAG8a1f51a4f
[2023-01-27 19:04:29,582 INFO  L402              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1604ce981/c6b892734c2540f6aa8fdd4898a171c6
[2023-01-27 19:04:29,584 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-01-27 19:04:29,587 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-01-27 19:04:29,588 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-01-27 19:04:29,588 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-01-27 19:04:29,590 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-01-27 19:04:29,591 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:04:29" (1/1) ...
[2023-01-27 19:04:29,592 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@466f4338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:29, skipping insertion in model container
[2023-01-27 19:04:29,592 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:04:29" (1/1) ...
[2023-01-27 19:04:29,597 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-01-27 19:04:29,647 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-01-27 19:04:29,764 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107]
[2023-01-27 19:04:30,088 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-01-27 19:04:30,100 INFO  L203         MainTranslator]: Completed pre-run
[2023-01-27 19:04:30,109 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107]
[2023-01-27 19:04:30,154 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-01-27 19:04:30,225 WARN  L667               CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler.
[2023-01-27 19:04:30,230 INFO  L208         MainTranslator]: Completed translation
[2023-01-27 19:04:30,231 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:30 WrapperNode
[2023-01-27 19:04:30,231 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-01-27 19:04:30,232 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-01-27 19:04:30,232 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-01-27 19:04:30,232 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-01-27 19:04:30,238 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:30" (1/1) ...
[2023-01-27 19:04:30,273 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:30" (1/1) ...
[2023-01-27 19:04:30,305 INFO  L138                Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79
[2023-01-27 19:04:30,306 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-01-27 19:04:30,306 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-01-27 19:04:30,306 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-01-27 19:04:30,307 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-01-27 19:04:30,315 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:30" (1/1) ...
[2023-01-27 19:04:30,316 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:30" (1/1) ...
[2023-01-27 19:04:30,331 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:30" (1/1) ...
[2023-01-27 19:04:30,332 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:30" (1/1) ...
[2023-01-27 19:04:30,344 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:30" (1/1) ...
[2023-01-27 19:04:30,352 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:30" (1/1) ...
[2023-01-27 19:04:30,356 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:30" (1/1) ...
[2023-01-27 19:04:30,358 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:30" (1/1) ...
[2023-01-27 19:04:30,362 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-01-27 19:04:30,363 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-01-27 19:04:30,363 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-01-27 19:04:30,363 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-01-27 19:04:30,369 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:30" (1/1) ...
[2023-01-27 19:04:30,373 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-01-27 19:04:30,384 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-01-27 19:04:30,395 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)
[2023-01-27 19:04:30,397 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
[2023-01-27 19:04:30,423 INFO  L130     BoogieDeclarations]: Found specification of procedure sleep
[2023-01-27 19:04:30,423 INFO  L130     BoogieDeclarations]: Found specification of procedure f1
[2023-01-27 19:04:30,423 INFO  L138     BoogieDeclarations]: Found implementation of procedure f1
[2023-01-27 19:04:30,423 INFO  L130     BoogieDeclarations]: Found specification of procedure f2
[2023-01-27 19:04:30,423 INFO  L138     BoogieDeclarations]: Found implementation of procedure f2
[2023-01-27 19:04:30,423 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-01-27 19:04:30,423 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-01-27 19:04:30,423 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-01-27 19:04:30,423 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-01-27 19:04:30,424 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-01-27 19:04:30,424 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-01-27 19:04:30,424 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-01-27 19:04:30,424 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-01-27 19:04:30,424 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-01-27 19:04:30,426 WARN  L210             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-01-27 19:04:30,680 INFO  L236             CfgBuilder]: Building ICFG
[2023-01-27 19:04:30,681 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-01-27 19:04:30,807 INFO  L277             CfgBuilder]: Performing block encoding
[2023-01-27 19:04:30,813 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-01-27 19:04:30,813 INFO  L302             CfgBuilder]: Removed 0 assume(true) statements.
[2023-01-27 19:04:30,815 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:04:30 BoogieIcfgContainer
[2023-01-27 19:04:30,815 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-01-27 19:04:30,817 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-01-27 19:04:30,817 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-01-27 19:04:30,820 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-01-27 19:04:30,820 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:04:29" (1/3) ...
[2023-01-27 19:04:30,821 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4049cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:04:30, skipping insertion in model container
[2023-01-27 19:04:30,821 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:30" (2/3) ...
[2023-01-27 19:04:30,821 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4049cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:04:30, skipping insertion in model container
[2023-01-27 19:04:30,821 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:04:30" (3/3) ...
[2023-01-27 19:04:30,822 INFO  L112   eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_true.i
[2023-01-27 19:04:30,840 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-01-27 19:04:30,841 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-01-27 19:04:30,841 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-01-27 19:04:30,957 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-01-27 19:04:30,984 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow
[2023-01-27 19:04:31,033 INFO  L130       PetriNetUnfolder]: 1/86 cut-off events.
[2023-01-27 19:04:31,033 INFO  L131       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-01-27 19:04:31,037 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 1/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. 
[2023-01-27 19:04:31,037 INFO  L82        GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow
[2023-01-27 19:04:31,040 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 73 places, 66 transitions, 138 flow
[2023-01-27 19:04:31,043 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-01-27 19:04:31,051 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 66 transitions, 138 flow
[2023-01-27 19:04:31,054 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 66 transitions, 138 flow
[2023-01-27 19:04:31,054 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 73 places, 66 transitions, 138 flow
[2023-01-27 19:04:31,069 INFO  L130       PetriNetUnfolder]: 0/66 cut-off events.
[2023-01-27 19:04:31,069 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-01-27 19:04:31,070 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 73 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. 
[2023-01-27 19:04:31,070 INFO  L119        LiptonReduction]: Number of co-enabled transitions 474
[2023-01-27 19:04:33,899 INFO  L134        LiptonReduction]: Checked pairs total: 956
[2023-01-27 19:04:33,899 INFO  L136        LiptonReduction]: Total number of compositions: 53
[2023-01-27 19:04:33,912 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-01-27 19:04:33,917 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@64f0aa06, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-01-27 19:04:33,918 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2023-01-27 19:04:33,922 INFO  L130       PetriNetUnfolder]: 0/11 cut-off events.
[2023-01-27 19:04:33,922 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-01-27 19:04:33,922 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-01-27 19:04:33,923 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-01-27 19:04:33,923 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2023-01-27 19:04:33,927 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-27 19:04:33,927 INFO  L85        PathProgramCache]: Analyzing trace with hash 1675552830, now seen corresponding path program 1 times
[2023-01-27 19:04:33,935 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-27 19:04:33,935 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133016080]
[2023-01-27 19:04:33,936 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-27 19:04:33,936 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-27 19:04:34,083 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-27 19:04:34,303 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-01-27 19:04:34,304 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-01-27 19:04:34,304 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133016080]
[2023-01-27 19:04:34,305 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133016080] provided 1 perfect and 0 imperfect interpolant sequences
[2023-01-27 19:04:34,305 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-01-27 19:04:34,305 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-01-27 19:04:34,306 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61449493]
[2023-01-27 19:04:34,307 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-01-27 19:04:34,313 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-01-27 19:04:34,318 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-01-27 19:04:34,339 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-01-27 19:04:34,340 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-01-27 19:04:34,342 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 77 out of 141
[2023-01-27 19:04:34,344 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 32 flow. Second operand  has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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)
[2023-01-27 19:04:34,345 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-01-27 19:04:34,345 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 141
[2023-01-27 19:04:34,345 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-01-27 19:04:34,404 INFO  L130       PetriNetUnfolder]: 47/110 cut-off events.
[2023-01-27 19:04:34,404 INFO  L131       PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2023-01-27 19:04:34,405 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 224 conditions, 110 events. 47/110 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 377 event pairs, 23 based on Foata normal form. 10/120 useless extension candidates. Maximal degree in co-relation 214. Up to 61 conditions per place. 
[2023-01-27 19:04:34,406 INFO  L137   encePairwiseOnDemand]: 138/141 looper letters, 15 selfloop transitions, 2 changer transitions 2/20 dead transitions.
[2023-01-27 19:04:34,406 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 20 transitions, 87 flow
[2023-01-27 19:04:34,407 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-01-27 19:04:34,409 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-01-27 19:04:34,417 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions.
[2023-01-27 19:04:34,421 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5933806146572104
[2023-01-27 19:04:34,422 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 251 transitions.
[2023-01-27 19:04:34,422 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions.
[2023-01-27 19:04:34,424 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-01-27 19:04:34,426 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions.
[2023-01-27 19:04:34,430 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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)
[2023-01-27 19:04:34,435 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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)
[2023-01-27 19:04:34,436 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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)
[2023-01-27 19:04:34,437 INFO  L175             Difference]: Start difference. First operand has 20 places, 13 transitions, 32 flow. Second operand 3 states and 251 transitions.
[2023-01-27 19:04:34,438 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 20 transitions, 87 flow
[2023-01-27 19:04:34,440 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 20 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-01-27 19:04:34,442 INFO  L231             Difference]: Finished difference. Result has 21 places, 13 transitions, 38 flow
[2023-01-27 19:04:34,443 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=38, PETRI_PLACES=21, PETRI_TRANSITIONS=13}
[2023-01-27 19:04:34,457 INFO  L281   CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places.
[2023-01-27 19:04:34,458 INFO  L495      AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 38 flow
[2023-01-27 19:04:34,458 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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)
[2023-01-27 19:04:34,458 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-01-27 19:04:34,458 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-01-27 19:04:34,458 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-01-27 19:04:34,459 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2023-01-27 19:04:34,477 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-27 19:04:34,478 INFO  L85        PathProgramCache]: Analyzing trace with hash -485842887, now seen corresponding path program 1 times
[2023-01-27 19:04:34,478 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-27 19:04:34,478 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010027381]
[2023-01-27 19:04:34,478 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-27 19:04:34,478 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-27 19:04:34,525 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-27 19:04:34,674 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-01-27 19:04:34,674 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-01-27 19:04:34,675 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010027381]
[2023-01-27 19:04:34,675 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010027381] provided 1 perfect and 0 imperfect interpolant sequences
[2023-01-27 19:04:34,675 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-01-27 19:04:34,675 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-01-27 19:04:34,675 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043026850]
[2023-01-27 19:04:34,675 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-01-27 19:04:34,677 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-01-27 19:04:34,677 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-01-27 19:04:34,678 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-01-27 19:04:34,678 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-01-27 19:04:34,679 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 70 out of 141
[2023-01-27 19:04:34,679 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 38 flow. Second operand  has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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)
[2023-01-27 19:04:34,679 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-01-27 19:04:34,679 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 141
[2023-01-27 19:04:34,679 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-01-27 19:04:34,731 INFO  L130       PetriNetUnfolder]: 18/51 cut-off events.
[2023-01-27 19:04:34,732 INFO  L131       PetriNetUnfolder]: For 4/4 co-relation queries the response was YES.
[2023-01-27 19:04:34,733 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 128 conditions, 51 events. 18/51 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 4 based on Foata normal form. 12/63 useless extension candidates. Maximal degree in co-relation 118. Up to 36 conditions per place. 
[2023-01-27 19:04:34,734 INFO  L137   encePairwiseOnDemand]: 136/141 looper letters, 11 selfloop transitions, 5 changer transitions 0/16 dead transitions.
[2023-01-27 19:04:34,734 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 16 transitions, 78 flow
[2023-01-27 19:04:34,734 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-01-27 19:04:34,734 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-01-27 19:04:34,738 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions.
[2023-01-27 19:04:34,738 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.541371158392435
[2023-01-27 19:04:34,738 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 229 transitions.
[2023-01-27 19:04:34,738 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 229 transitions.
[2023-01-27 19:04:34,739 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-01-27 19:04:34,739 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 229 transitions.
[2023-01-27 19:04:34,740 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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)
[2023-01-27 19:04:34,742 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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)
[2023-01-27 19:04:34,743 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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)
[2023-01-27 19:04:34,743 INFO  L175             Difference]: Start difference. First operand has 21 places, 13 transitions, 38 flow. Second operand 3 states and 229 transitions.
[2023-01-27 19:04:34,743 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 16 transitions, 78 flow
[2023-01-27 19:04:34,744 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 16 transitions, 76 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-01-27 19:04:34,744 INFO  L231             Difference]: Finished difference. Result has 22 places, 13 transitions, 46 flow
[2023-01-27 19:04:34,745 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=22, PETRI_TRANSITIONS=13}
[2023-01-27 19:04:34,746 INFO  L281   CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places.
[2023-01-27 19:04:34,746 INFO  L495      AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 46 flow
[2023-01-27 19:04:34,746 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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)
[2023-01-27 19:04:34,746 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-01-27 19:04:34,746 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-01-27 19:04:34,747 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-01-27 19:04:34,747 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2023-01-27 19:04:34,749 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-27 19:04:34,749 INFO  L85        PathProgramCache]: Analyzing trace with hash 1785060460, now seen corresponding path program 1 times
[2023-01-27 19:04:34,750 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-27 19:04:34,750 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67422653]
[2023-01-27 19:04:34,750 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-27 19:04:34,751 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-27 19:04:34,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-01-27 19:04:34,796 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-01-27 19:04:34,820 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-01-27 19:04:34,849 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-01-27 19:04:34,849 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-01-27 19:04:34,850 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining)
[2023-01-27 19:04:34,854 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining)
[2023-01-27 19:04:34,855 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining)
[2023-01-27 19:04:34,855 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining)
[2023-01-27 19:04:34,855 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-01-27 19:04:34,855 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-01-27 19:04:34,863 INFO  L228   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2023-01-27 19:04:34,863 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-01-27 19:04:34,902 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:04:34 BasicIcfg
[2023-01-27 19:04:34,903 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-01-27 19:04:34,903 INFO  L158              Benchmark]: Toolchain (without parser) took 5316.22ms. Allocated memory is still 530.6MB. Free memory was 477.4MB in the beginning and 444.5MB in the end (delta: 32.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB.
[2023-01-27 19:04:34,903 INFO  L158              Benchmark]: CDTParser took 0.13ms. Allocated memory is still 352.3MB. Free memory is still 299.9MB. There was no memory consumed. Max. memory is 16.0GB.
[2023-01-27 19:04:34,904 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 643.88ms. Allocated memory is still 530.6MB. Free memory was 477.0MB in the beginning and 439.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB.
[2023-01-27 19:04:34,904 INFO  L158              Benchmark]: Boogie Procedure Inliner took 73.59ms. Allocated memory is still 530.6MB. Free memory was 439.3MB in the beginning and 436.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB.
[2023-01-27 19:04:34,905 INFO  L158              Benchmark]: Boogie Preprocessor took 55.83ms. Allocated memory is still 530.6MB. Free memory was 436.6MB in the beginning and 434.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
[2023-01-27 19:04:34,905 INFO  L158              Benchmark]: RCFGBuilder took 452.32ms. Allocated memory is still 530.6MB. Free memory was 434.0MB in the beginning and 414.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB.
[2023-01-27 19:04:34,905 INFO  L158              Benchmark]: TraceAbstraction took 4085.39ms. Allocated memory is still 530.6MB. Free memory was 413.6MB in the beginning and 444.5MB in the end (delta: -30.9MB). There was no memory consumed. Max. memory is 16.0GB.
[2023-01-27 19:04:34,907 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.13ms. Allocated memory is still 352.3MB. Free memory is still 299.9MB. There was no memory consumed. Max. memory is 16.0GB.
 * CACSL2BoogieTranslator took 643.88ms. Allocated memory is still 530.6MB. Free memory was 477.0MB in the beginning and 439.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB.
 * Boogie Procedure Inliner took 73.59ms. Allocated memory is still 530.6MB. Free memory was 439.3MB in the beginning and 436.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB.
 * Boogie Preprocessor took 55.83ms. Allocated memory is still 530.6MB. Free memory was 436.6MB in the beginning and 434.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
 * RCFGBuilder took 452.32ms. Allocated memory is still 530.6MB. Free memory was 434.0MB in the beginning and 414.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB.
 * TraceAbstraction took 4085.39ms. Allocated memory is still 530.6MB. Free memory was 413.6MB in the beginning and 444.5MB in the end (delta: -30.9MB). There was no memory consumed. Max. memory is 16.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 2.8s, 73 PlacesBefore, 20 PlacesAfterwards, 66 TransitionsBefore, 13 TransitionsAfterwards, 474 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, 956 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 561, independent: 471, independent conditional: 0, independent unconditional: 471, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 254, independent: 239, independent conditional: 0, independent unconditional: 239, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 561, independent: 232, independent conditional: 0, independent unconditional: 232, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 254, unknown conditional: 0, unknown unconditional: 254] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - CounterExampleResult [Line: 19]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L1351]               0  int g;
[L1352]               0  pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } };
[L1353]               0  pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } };
[L1373]               0  pthread_t t1;
[L1374]               0  pthread_t t2;
[L1375]  FCALL, FORK  0  pthread_create(&t1,((void *)0),f1,((void *)0))
         VAL             [\old(argc)=1150, argc=1150, argv={1152:1151}, argv={1152:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=0, t1={5:0}, t2={6:0}]
[L1356]               1  g = 1
         VAL             [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}]
[L1377]  FCALL, FORK  0  pthread_create(&t2,((void *)0),f2,((void *)0))
         VAL             [\old(argc)=1150, argc=1150, argv={1152:1151}, argv={1152:1151}, cond={4:0}, g=1, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=1, ptr={0:0}, t1={5:0}, t2={6:0}]
[L1366]               2  g = 0
         VAL             [cond={4:0}, g=0, mut={3:0}, ptr={0:0}, ptr={0:0}]
[L1369]               2  return ((void *)0);
[L1358]  CALL         1  __VERIFIER_assert(g == 1)
[L19]    COND TRUE    1  !(cond)
[L19]                 1  reach_error()
         VAL             [\old(cond)=0, \result={0:0}, cond=0, cond={4:0}, g=0, mut={3:0}, ptr={0:0}, ptr={0:0}]

  - UnprovableResult [Line: 1375]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1377]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 5 procedures, 118 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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
RESULT: Ultimate proved your program to be incorrect!
[2023-01-27 19:04:34,937 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...