/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_19-publish-precision_unknown_1_pos.i


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


This is Ultimate 0.2.3-dev-b8dbc81
[2023-01-27 19:02:00,188 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2023-01-27 19:02:00,225 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-01-27 19:02:00,230 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-01-27 19:02:00,233 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2023-01-27 19:02:00,259 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-01-27 19:02:00,260 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-01-27 19:02:00,260 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-01-27 19:02:00,261 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-01-27 19:02:00,262 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-01-27 19:02:00,266 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-01-27 19:02:00,267 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-01-27 19:02:00,268 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-01-27 19:02:00,268 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
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[2023-01-27 19:02:00,280 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2023-01-27 19:02:00,281 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-01-27 19:02:00,282 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 19:02:00,304 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-01-27 19:02:00,304 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-01-27 19:02:00,305 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-01-27 19:02:00,305 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-01-27 19:02:00,306 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-01-27 19:02:00,306 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-01-27 19:02:00,306 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-01-27 19:02:00,306 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-01-27 19:02:00,306 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-01-27 19:02:00,306 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-01-27 19:02:00,307 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-01-27 19:02:00,307 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-01-27 19:02:00,307 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-01-27 19:02:00,307 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-01-27 19:02:00,307 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-01-27 19:02:00,307 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-01-27 19:02:00,307 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-01-27 19:02:00,307 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-01-27 19:02:00,308 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-01-27 19:02:00,308 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-01-27 19:02:00,308 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-01-27 19:02:00,308 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2023-01-27 19:02:00,308 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-01-27 19:02:00,308 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-01-27 19:02:00,308 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-01-27 19:02:00,308 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-01-27 19:02:00,308 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-01-27 19:02:00,308 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-01-27 19:02:00,308 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-01-27 19:02:00,309 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-01-27 19:02:00,309 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-01-27 19:02:00,309 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-01-27 19:02:00,620 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-01-27 19:02:00,665 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-01-27 19:02:00,667 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-01-27 19:02:00,667 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-01-27 19:02:00,668 INFO  L275        PluginConnector]: CDTParser initialized
[2023-01-27 19:02:00,669 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i
[2023-01-27 19:02:02,315 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-01-27 19:02:02,650 INFO  L351              CDTParser]: Found 1 translation units.
[2023-01-27 19:02:02,651 INFO  L172              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i
[2023-01-27 19:02:02,679 INFO  L394              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81adcfc00/f2e1266da28b448f8d34f6b4c839e875/FLAG16c9814c0
[2023-01-27 19:02:02,699 INFO  L402              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81adcfc00/f2e1266da28b448f8d34f6b4c839e875
[2023-01-27 19:02:02,701 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-01-27 19:02:02,712 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-01-27 19:02:02,713 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-01-27 19:02:02,713 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-01-27 19:02:02,715 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-01-27 19:02:02,716 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:02:02" (1/1) ...
[2023-01-27 19:02:02,717 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fca731a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:02, skipping insertion in model container
[2023-01-27 19:02:02,717 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:02:02" (1/1) ...
[2023-01-27 19:02:02,737 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-01-27 19:02:02,806 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-01-27 19:02:02,972 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_19-publish-precision_unknown_1_pos.i[1103,1116]
[2023-01-27 19:02:03,193 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-01-27 19:02:03,215 INFO  L203         MainTranslator]: Completed pre-run
[2023-01-27 19:02:03,237 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_19-publish-precision_unknown_1_pos.i[1103,1116]
[2023-01-27 19:02:03,283 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-01-27 19:02:03,333 INFO  L208         MainTranslator]: Completed translation
[2023-01-27 19:02:03,334 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:03 WrapperNode
[2023-01-27 19:02:03,349 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-01-27 19:02:03,350 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-01-27 19:02:03,350 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-01-27 19:02:03,350 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-01-27 19:02:03,355 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:03" (1/1) ...
[2023-01-27 19:02:03,393 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:03" (1/1) ...
[2023-01-27 19:02:03,412 INFO  L138                Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49
[2023-01-27 19:02:03,412 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-01-27 19:02:03,413 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-01-27 19:02:03,413 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-01-27 19:02:03,413 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-01-27 19:02:03,428 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:03" (1/1) ...
[2023-01-27 19:02:03,428 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:03" (1/1) ...
[2023-01-27 19:02:03,441 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:03" (1/1) ...
[2023-01-27 19:02:03,442 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:03" (1/1) ...
[2023-01-27 19:02:03,444 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:03" (1/1) ...
[2023-01-27 19:02:03,445 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:03" (1/1) ...
[2023-01-27 19:02:03,446 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:03" (1/1) ...
[2023-01-27 19:02:03,447 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:03" (1/1) ...
[2023-01-27 19:02:03,448 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-01-27 19:02:03,449 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-01-27 19:02:03,449 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-01-27 19:02:03,449 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-01-27 19:02:03,450 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:03" (1/1) ...
[2023-01-27 19:02:03,468 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-01-27 19:02:03,492 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-01-27 19:02:03,523 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 19:02:03,550 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 19:02:03,567 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-01-27 19:02:03,567 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-01-27 19:02:03,567 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-01-27 19:02:03,567 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-01-27 19:02:03,567 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-01-27 19:02:03,568 INFO  L130     BoogieDeclarations]: Found specification of procedure t_fun
[2023-01-27 19:02:03,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure t_fun
[2023-01-27 19:02:03,581 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-01-27 19:02:03,581 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-01-27 19:02:03,585 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-01-27 19:02:03,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-01-27 19:02:03,586 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 19:02:03,806 INFO  L236             CfgBuilder]: Building ICFG
[2023-01-27 19:02:03,808 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-01-27 19:02:04,073 INFO  L277             CfgBuilder]: Performing block encoding
[2023-01-27 19:02:04,077 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-01-27 19:02:04,077 INFO  L302             CfgBuilder]: Removed 0 assume(true) statements.
[2023-01-27 19:02:04,097 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:02:04 BoogieIcfgContainer
[2023-01-27 19:02:04,098 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-01-27 19:02:04,099 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-01-27 19:02:04,099 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-01-27 19:02:04,103 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-01-27 19:02:04,103 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:02:02" (1/3) ...
[2023-01-27 19:02:04,104 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9a24d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:02:04, skipping insertion in model container
[2023-01-27 19:02:04,104 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:02:03" (2/3) ...
[2023-01-27 19:02:04,104 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9a24d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:02:04, skipping insertion in model container
[2023-01-27 19:02:04,104 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:02:04" (3/3) ...
[2023-01-27 19:02:04,105 INFO  L112   eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i
[2023-01-27 19:02:04,131 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-01-27 19:02:04,132 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-01-27 19:02:04,132 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-01-27 19:02:04,228 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2023-01-27 19:02:04,261 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow
[2023-01-27 19:02:04,309 INFO  L130       PetriNetUnfolder]: 1/64 cut-off events.
[2023-01-27 19:02:04,310 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-01-27 19:02:04,313 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 1/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. 
[2023-01-27 19:02:04,313 INFO  L82        GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow
[2023-01-27 19:02:04,316 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow
[2023-01-27 19:02:04,318 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-01-27 19:02:04,332 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow
[2023-01-27 19:02:04,335 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow
[2023-01-27 19:02:04,336 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow
[2023-01-27 19:02:04,355 INFO  L130       PetriNetUnfolder]: 0/52 cut-off events.
[2023-01-27 19:02:04,356 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-01-27 19:02:04,356 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. 
[2023-01-27 19:02:04,356 INFO  L119        LiptonReduction]: Number of co-enabled transitions 252
[2023-01-27 19:02:06,563 INFO  L134        LiptonReduction]: Checked pairs total: 530
[2023-01-27 19:02:06,564 INFO  L136        LiptonReduction]: Total number of compositions: 40
[2023-01-27 19:02:06,580 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-01-27 19:02:06,586 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;@549e418, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-01-27 19:02:06,586 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-01-27 19:02:06,589 INFO  L130       PetriNetUnfolder]: 0/5 cut-off events.
[2023-01-27 19:02:06,589 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-01-27 19:02:06,589 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-01-27 19:02:06,590 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-01-27 19:02:06,590 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-01-27 19:02:06,594 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-27 19:02:06,595 INFO  L85        PathProgramCache]: Analyzing trace with hash 6763455, now seen corresponding path program 1 times
[2023-01-27 19:02:06,601 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-27 19:02:06,601 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638369731]
[2023-01-27 19:02:06,601 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-27 19:02:06,602 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-27 19:02:06,724 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-27 19:02:06,916 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 19:02:06,917 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-01-27 19:02:06,917 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638369731]
[2023-01-27 19:02:06,917 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638369731] provided 1 perfect and 0 imperfect interpolant sequences
[2023-01-27 19:02:06,917 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-01-27 19:02:06,917 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-01-27 19:02:06,918 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507064380]
[2023-01-27 19:02:06,919 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-01-27 19:02:06,924 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-01-27 19:02:06,927 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-01-27 19:02:06,944 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-01-27 19:02:06,945 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-01-27 19:02:06,946 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 57 out of 105
[2023-01-27 19:02:06,948 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 27 flow. Second operand  has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 19:02:06,949 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-01-27 19:02:06,949 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 105
[2023-01-27 19:02:06,949 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-01-27 19:02:06,981 INFO  L130       PetriNetUnfolder]: 7/31 cut-off events.
[2023-01-27 19:02:06,982 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-01-27 19:02:06,983 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 62 conditions, 31 events. 7/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 5 based on Foata normal form. 5/36 useless extension candidates. Maximal degree in co-relation 53. Up to 17 conditions per place. 
[2023-01-27 19:02:06,983 INFO  L137   encePairwiseOnDemand]: 101/105 looper letters, 8 selfloop transitions, 3 changer transitions 0/13 dead transitions.
[2023-01-27 19:02:06,984 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 13 transitions, 51 flow
[2023-01-27 19:02:06,985 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-01-27 19:02:06,987 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-01-27 19:02:06,993 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions.
[2023-01-27 19:02:06,994 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.580952380952381
[2023-01-27 19:02:07,009 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 183 transitions.
[2023-01-27 19:02:07,010 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 183 transitions.
[2023-01-27 19:02:07,011 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-01-27 19:02:07,013 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 183 transitions.
[2023-01-27 19:02:07,017 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 19:02:07,021 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 19:02:07,021 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 19:02:07,023 INFO  L175             Difference]: Start difference. First operand has 16 places, 12 transitions, 27 flow. Second operand 3 states and 183 transitions.
[2023-01-27 19:02:07,023 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 13 transitions, 51 flow
[2023-01-27 19:02:07,024 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 13 transitions, 50 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-01-27 19:02:07,025 INFO  L231             Difference]: Finished difference. Result has 18 places, 12 transitions, 37 flow
[2023-01-27 19:02:07,034 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=18, PETRI_TRANSITIONS=12}
[2023-01-27 19:02:07,037 INFO  L281   CegarLoopForPetriNet]: 16 programPoint places, 2 predicate places.
[2023-01-27 19:02:07,038 INFO  L495      AbstractCegarLoop]: Abstraction has has 18 places, 12 transitions, 37 flow
[2023-01-27 19:02:07,038 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 19:02:07,038 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-01-27 19:02:07,038 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-01-27 19:02:07,038 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-01-27 19:02:07,039 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-01-27 19:02:07,044 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-27 19:02:07,045 INFO  L85        PathProgramCache]: Analyzing trace with hash -373918252, now seen corresponding path program 1 times
[2023-01-27 19:02:07,045 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-27 19:02:07,045 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899648319]
[2023-01-27 19:02:07,045 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-27 19:02:07,046 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-27 19:02:07,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-01-27 19:02:07,301 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 19:02:07,301 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-01-27 19:02:07,301 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899648319]
[2023-01-27 19:02:07,302 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899648319] provided 1 perfect and 0 imperfect interpolant sequences
[2023-01-27 19:02:07,302 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-01-27 19:02:07,302 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-01-27 19:02:07,302 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104065947]
[2023-01-27 19:02:07,303 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-01-27 19:02:07,304 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-01-27 19:02:07,304 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-01-27 19:02:07,305 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-01-27 19:02:07,308 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-01-27 19:02:07,324 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 41 out of 105
[2023-01-27 19:02:07,325 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 12 transitions, 37 flow. Second operand  has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 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 19:02:07,325 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-01-27 19:02:07,325 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 105
[2023-01-27 19:02:07,325 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-01-27 19:02:07,372 INFO  L130       PetriNetUnfolder]: 2/18 cut-off events.
[2023-01-27 19:02:07,372 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-01-27 19:02:07,372 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 45 conditions, 18 events. 2/18 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 5/23 useless extension candidates. Maximal degree in co-relation 34. Up to 10 conditions per place. 
[2023-01-27 19:02:07,372 INFO  L137   encePairwiseOnDemand]: 99/105 looper letters, 3 selfloop transitions, 4 changer transitions 6/14 dead transitions.
[2023-01-27 19:02:07,372 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 14 transitions, 65 flow
[2023-01-27 19:02:07,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-01-27 19:02:07,373 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-01-27 19:02:07,375 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 179 transitions.
[2023-01-27 19:02:07,376 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.4261904761904762
[2023-01-27 19:02:07,377 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 179 transitions.
[2023-01-27 19:02:07,377 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 179 transitions.
[2023-01-27 19:02:07,377 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-01-27 19:02:07,377 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 179 transitions.
[2023-01-27 19:02:07,378 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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 19:02:07,380 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 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 19:02:07,380 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 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 19:02:07,380 INFO  L175             Difference]: Start difference. First operand has 18 places, 12 transitions, 37 flow. Second operand 4 states and 179 transitions.
[2023-01-27 19:02:07,380 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 14 transitions, 65 flow
[2023-01-27 19:02:07,381 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 14 transitions, 59 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-01-27 19:02:07,381 INFO  L231             Difference]: Finished difference. Result has 19 places, 8 transitions, 30 flow
[2023-01-27 19:02:07,381 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=30, PETRI_PLACES=19, PETRI_TRANSITIONS=8}
[2023-01-27 19:02:07,382 INFO  L281   CegarLoopForPetriNet]: 16 programPoint places, 3 predicate places.
[2023-01-27 19:02:07,382 INFO  L495      AbstractCegarLoop]: Abstraction has has 19 places, 8 transitions, 30 flow
[2023-01-27 19:02:07,382 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 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 19:02:07,382 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-01-27 19:02:07,382 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-01-27 19:02:07,382 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-01-27 19:02:07,383 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-01-27 19:02:07,383 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-01-27 19:02:07,383 INFO  L85        PathProgramCache]: Analyzing trace with hash 817734317, now seen corresponding path program 1 times
[2023-01-27 19:02:07,383 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-01-27 19:02:07,384 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140738458]
[2023-01-27 19:02:07,384 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-01-27 19:02:07,384 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-01-27 19:02:07,422 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-01-27 19:02:07,422 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-01-27 19:02:07,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-01-27 19:02:07,474 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-01-27 19:02:07,475 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-01-27 19:02:07,475 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2023-01-27 19:02:07,476 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining)
[2023-01-27 19:02:07,477 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-01-27 19:02:07,477 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-01-27 19:02:07,497 INFO  L228   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2023-01-27 19:02:07,497 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-01-27 19:02:07,519 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:02:07 BasicIcfg
[2023-01-27 19:02:07,519 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-01-27 19:02:07,519 INFO  L158              Benchmark]: Toolchain (without parser) took 4808.09ms. Allocated memory is still 442.5MB. Free memory was 392.1MB in the beginning and 323.4MB in the end (delta: 68.7MB). Peak memory consumption was 71.3MB. Max. memory is 16.0GB.
[2023-01-27 19:02:07,520 INFO  L158              Benchmark]: CDTParser took 0.10ms. Allocated memory is still 310.4MB. Free memory is still 259.7MB. There was no memory consumed. Max. memory is 16.0GB.
[2023-01-27 19:02:07,520 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 635.88ms. Allocated memory is still 442.5MB. Free memory was 391.8MB in the beginning and 372.9MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB.
[2023-01-27 19:02:07,520 INFO  L158              Benchmark]: Boogie Procedure Inliner took 62.24ms. Allocated memory is still 442.5MB. Free memory was 372.9MB in the beginning and 370.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
[2023-01-27 19:02:07,521 INFO  L158              Benchmark]: Boogie Preprocessor took 35.89ms. Allocated memory is still 442.5MB. Free memory was 370.9MB in the beginning and 369.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
[2023-01-27 19:02:07,521 INFO  L158              Benchmark]: RCFGBuilder took 648.75ms. Allocated memory is still 442.5MB. Free memory was 369.6MB in the beginning and 356.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB.
[2023-01-27 19:02:07,521 INFO  L158              Benchmark]: TraceAbstraction took 3420.11ms. Allocated memory is still 442.5MB. Free memory was 355.9MB in the beginning and 323.4MB in the end (delta: 32.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB.
[2023-01-27 19:02:07,523 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.10ms. Allocated memory is still 310.4MB. Free memory is still 259.7MB. There was no memory consumed. Max. memory is 16.0GB.
 * CACSL2BoogieTranslator took 635.88ms. Allocated memory is still 442.5MB. Free memory was 391.8MB in the beginning and 372.9MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB.
 * Boogie Procedure Inliner took 62.24ms. Allocated memory is still 442.5MB. Free memory was 372.9MB in the beginning and 370.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
 * Boogie Preprocessor took 35.89ms. Allocated memory is still 442.5MB. Free memory was 370.9MB in the beginning and 369.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
 * RCFGBuilder took 648.75ms. Allocated memory is still 442.5MB. Free memory was 369.6MB in the beginning and 356.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB.
 * TraceAbstraction took 3420.11ms. Allocated memory is still 442.5MB. Free memory was 355.9MB in the beginning and 323.4MB in the end (delta: 32.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 2.2s, 56 PlacesBefore, 16 PlacesAfterwards, 52 TransitionsBefore, 12 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 530 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 303, independent: 200, independent conditional: 0, independent unconditional: 200, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 143, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 303, independent: 77, independent conditional: 0, independent unconditional: 77, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 143, unknown conditional: 0, unknown unconditional: 143] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, 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: 
[L681]               0  int glob1 = 0;
[L682]               0  pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } };
[L683]               0  pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } };
[L696]               0  pthread_t id;
[L697]  FCALL, FORK  0  pthread_create(&id, ((void *)0), t_fun, ((void *)0))
        VAL             [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1]
[L687]               1  glob1 = 5
        VAL             [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}]
[L699]  CALL         0  __VERIFIER_assert(glob1 == 0)
[L19]   COND TRUE    0  !(cond)
[L19]                0  reach_error()
        VAL             [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}]

  - UnprovableResult [Line: 697]: 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 3 procedures, 81 locations, 2 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: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 2 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=1, InterpolantAutomatonStates: 7, 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 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 19:02:07,567 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...