/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.order.of.the.error.locations.to.be.checked TOGETHER -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_94-alloc_region_racing_bound2.i


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


This is Ultimate 0.2.3-dev-19404b3-m
[2023-08-03 15:38:04,968 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-08-03 15:38:05,025 INFO  L114        SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf
[2023-08-03 15:38:05,029 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-08-03 15:38:05,030 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-08-03 15:38:05,030 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode:
[2023-08-03 15:38:05,030 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2023-08-03 15:38:05,054 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-08-03 15:38:05,054 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-08-03 15:38:05,054 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-08-03 15:38:05,055 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-08-03 15:38:05,055 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-08-03 15:38:05,055 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-08-03 15:38:05,055 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-08-03 15:38:05,056 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-08-03 15:38:05,056 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-08-03 15:38:05,056 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-08-03 15:38:05,060 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-08-03 15:38:05,060 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-08-03 15:38:05,060 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-08-03 15:38:05,066 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-08-03 15:38:05,066 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-08-03 15:38:05,066 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-08-03 15:38:05,067 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-08-03 15:38:05,068 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-08-03 15:38:05,068 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-08-03 15:38:05,068 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-08-03 15:38:05,068 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-08-03 15:38:05,069 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-08-03 15:38:05,069 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-08-03 15:38:05,069 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-03 15:38:05,070 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-08-03 15:38:05,070 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-08-03 15:38:05,070 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-08-03 15:38:05,070 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-08-03 15:38:05,070 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-08-03 15:38:05,070 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-08-03 15:38:05,070 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-08-03 15:38:05,070 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-08-03 15:38:05,070 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-08-03 15:38:05,070 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-08-03 15:38:05,071 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER
[2023-08-03 15:38:05,229 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-08-03 15:38:05,247 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-08-03 15:38:05,248 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-08-03 15:38:05,249 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-08-03 15:38:05,249 INFO  L274        PluginConnector]: CDTParser initialized
[2023-08-03 15:38:05,250 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_94-alloc_region_racing_bound2.i
[2023-08-03 15:38:06,082 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-08-03 15:38:06,324 INFO  L384              CDTParser]: Found 1 translation units.
[2023-08-03 15:38:06,325 INFO  L180              CDTParser]: Scanning /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_94-alloc_region_racing_bound2.i
[2023-08-03 15:38:06,343 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47dc764ec/8b8f764142724be4be2d217064357fbc/FLAG9bcec8351
[2023-08-03 15:38:06,352 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47dc764ec/8b8f764142724be4be2d217064357fbc
[2023-08-03 15:38:06,354 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-08-03 15:38:06,355 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-08-03 15:38:06,355 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-08-03 15:38:06,355 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-08-03 15:38:06,357 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-08-03 15:38:06,358 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 03:38:06" (1/1) ...
[2023-08-03 15:38:06,358 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdfa4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06, skipping insertion in model container
[2023-08-03 15:38:06,359 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 03:38:06" (1/1) ...
[2023-08-03 15:38:06,395 INFO  L176         MainTranslator]: Built tables and reachable declarations
[2023-08-03 15:38:06,699 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_94-alloc_region_racing_bound2.i[58135,58148]
[2023-08-03 15:38:06,718 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-08-03 15:38:06,726 INFO  L201         MainTranslator]: Completed pre-run
[2023-08-03 15:38:06,735 WARN  L75    lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244]
[2023-08-03 15:38:06,736 WARN  L75    lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244]
[2023-08-03 15:38:06,745 WARN  L75    lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044]
[2023-08-03 15:38:06,750 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_94-alloc_region_racing_bound2.i[58135,58148]
[2023-08-03 15:38:06,757 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-08-03 15:38:06,808 INFO  L206         MainTranslator]: Completed translation
[2023-08-03 15:38:06,808 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06 WrapperNode
[2023-08-03 15:38:06,808 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-08-03 15:38:06,809 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-08-03 15:38:06,809 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-08-03 15:38:06,809 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-08-03 15:38:06,813 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06" (1/1) ...
[2023-08-03 15:38:06,826 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06" (1/1) ...
[2023-08-03 15:38:06,844 INFO  L138                Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238
[2023-08-03 15:38:06,845 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-08-03 15:38:06,845 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-08-03 15:38:06,845 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-08-03 15:38:06,845 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-08-03 15:38:06,851 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06" (1/1) ...
[2023-08-03 15:38:06,851 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06" (1/1) ...
[2023-08-03 15:38:06,854 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06" (1/1) ...
[2023-08-03 15:38:06,854 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06" (1/1) ...
[2023-08-03 15:38:06,868 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06" (1/1) ...
[2023-08-03 15:38:06,871 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06" (1/1) ...
[2023-08-03 15:38:06,872 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06" (1/1) ...
[2023-08-03 15:38:06,873 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06" (1/1) ...
[2023-08-03 15:38:06,875 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-08-03 15:38:06,876 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-08-03 15:38:06,876 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-08-03 15:38:06,876 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-08-03 15:38:06,880 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06" (1/1) ...
[2023-08-03 15:38:06,884 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-03 15:38:06,890 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-03 15:38:06,900 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)
[2023-08-03 15:38:06,921 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-08-03 15:38:06,921 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-08-03 15:38:06,921 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-08-03 15:38:06,921 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2023-08-03 15:38:06,922 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-08-03 15:38:06,922 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-08-03 15:38:06,922 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-08-03 15:38:06,922 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-08-03 15:38:06,922 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-08-03 15:38:06,922 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-08-03 15:38:06,922 INFO  L130     BoogieDeclarations]: Found specification of procedure t_fun
[2023-08-03 15:38:06,922 INFO  L138     BoogieDeclarations]: Found implementation of procedure t_fun
[2023-08-03 15:38:06,922 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-08-03 15:38:06,922 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-08-03 15:38:06,922 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-08-03 15:38:06,923 WARN  L210             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-08-03 15:38:06,902 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
[2023-08-03 15:38:07,020 INFO  L236             CfgBuilder]: Building ICFG
[2023-08-03 15:38:07,021 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-08-03 15:38:07,316 INFO  L277             CfgBuilder]: Performing block encoding
[2023-08-03 15:38:07,322 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-08-03 15:38:07,322 INFO  L302             CfgBuilder]: Removed 23 assume(true) statements.
[2023-08-03 15:38:07,323 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 03:38:07 BoogieIcfgContainer
[2023-08-03 15:38:07,324 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-08-03 15:38:07,325 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-08-03 15:38:07,325 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-08-03 15:38:07,327 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-08-03 15:38:07,327 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 03:38:06" (1/3) ...
[2023-08-03 15:38:07,328 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2593494b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 03:38:07, skipping insertion in model container
[2023-08-03 15:38:07,328 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:38:06" (2/3) ...
[2023-08-03 15:38:07,328 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2593494b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 03:38:07, skipping insertion in model container
[2023-08-03 15:38:07,328 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 03:38:07" (3/3) ...
[2023-08-03 15:38:07,333 INFO  L112   eAbstractionObserver]: Analyzing ICFG goblint-regression_28-race_reach_94-alloc_region_racing_bound2.i
[2023-08-03 15:38:07,338 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-08-03 15:38:07,344 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-08-03 15:38:07,344 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-08-03 15:38:07,345 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-08-03 15:38:07,409 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2023-08-03 15:38:07,439 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 214 places, 240 transitions, 488 flow
[2023-08-03 15:38:07,543 INFO  L124   PetriNetUnfolderBase]: 45/343 cut-off events.
[2023-08-03 15:38:07,544 INFO  L125   PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2023-08-03 15:38:07,550 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 349 conditions, 343 events. 45/343 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1028 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 186. Up to 8 conditions per place. 
[2023-08-03 15:38:07,551 INFO  L82        GeneralOperation]: Start removeDead. Operand has 214 places, 240 transitions, 488 flow
[2023-08-03 15:38:07,560 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 210 places, 235 transitions, 475 flow
[2023-08-03 15:38:07,562 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-08-03 15:38:07,573 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 235 transitions, 475 flow
[2023-08-03 15:38:07,574 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 235 transitions, 475 flow
[2023-08-03 15:38:07,575 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 210 places, 235 transitions, 475 flow
[2023-08-03 15:38:07,612 INFO  L124   PetriNetUnfolderBase]: 44/338 cut-off events.
[2023-08-03 15:38:07,612 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-08-03 15:38:07,614 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 343 conditions, 338 events. 44/338 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 978 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 186. Up to 8 conditions per place. 
[2023-08-03 15:38:07,621 INFO  L119        LiptonReduction]: Number of co-enabled transitions 17004
[2023-08-03 15:38:16,710 INFO  L134        LiptonReduction]: Checked pairs total: 37879
[2023-08-03 15:38:16,710 INFO  L136        LiptonReduction]: Total number of compositions: 182
[2023-08-03 15:38:16,719 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-08-03 15:38:16,722 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@3d110769, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-08-03 15:38:16,722 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2023-08-03 15:38:16,725 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-08-03 15:38:16,725 INFO  L124   PetriNetUnfolderBase]: 0/13 cut-off events.
[2023-08-03 15:38:16,726 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-08-03 15:38:16,726 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 15:38:16,726 INFO  L208   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-08-03 15:38:16,726 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2023-08-03 15:38:16,729 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 15:38:16,729 INFO  L85        PathProgramCache]: Analyzing trace with hash 568836363, now seen corresponding path program 1 times
[2023-08-03 15:38:16,735 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 15:38:16,735 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883637511]
[2023-08-03 15:38:16,735 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 15:38:16,736 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 15:38:16,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-03 15:38:16,876 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-08-03 15:38:16,897 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-03 15:38:16,913 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-08-03 15:38:16,914 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-08-03 15:38:16,914 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining)
[2023-08-03 15:38:16,915 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining)
[2023-08-03 15:38:16,916 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining)
[2023-08-03 15:38:16,916 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining)
[2023-08-03 15:38:16,916 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-08-03 15:38:16,916 INFO  L445         BasicCegarLoop]: Path program histogram: [1]
[2023-08-03 15:38:16,918 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-08-03 15:38:16,918 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-08-03 15:38:16,944 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-08-03 15:38:16,953 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 283 places, 320 transitions, 658 flow
[2023-08-03 15:38:17,004 INFO  L124   PetriNetUnfolderBase]: 76/550 cut-off events.
[2023-08-03 15:38:17,004 INFO  L125   PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2023-08-03 15:38:17,009 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 564 conditions, 550 events. 76/550 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2170 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 345. Up to 12 conditions per place. 
[2023-08-03 15:38:17,009 INFO  L82        GeneralOperation]: Start removeDead. Operand has 283 places, 320 transitions, 658 flow
[2023-08-03 15:38:17,012 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 283 places, 320 transitions, 658 flow
[2023-08-03 15:38:17,013 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-08-03 15:38:17,013 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 283 places, 320 transitions, 658 flow
[2023-08-03 15:38:17,013 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 283 places, 320 transitions, 658 flow
[2023-08-03 15:38:17,013 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 283 places, 320 transitions, 658 flow
[2023-08-03 15:38:17,062 INFO  L124   PetriNetUnfolderBase]: 76/550 cut-off events.
[2023-08-03 15:38:17,062 INFO  L125   PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2023-08-03 15:38:17,066 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 564 conditions, 550 events. 76/550 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2170 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 345. Up to 12 conditions per place. 
[2023-08-03 15:38:17,082 INFO  L119        LiptonReduction]: Number of co-enabled transitions 47892
[2023-08-03 15:38:25,222 INFO  L134        LiptonReduction]: Checked pairs total: 110000
[2023-08-03 15:38:25,222 INFO  L136        LiptonReduction]: Total number of compositions: 238
[2023-08-03 15:38:25,224 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-08-03 15:38:25,225 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@3d110769, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-08-03 15:38:25,225 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2023-08-03 15:38:25,228 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-08-03 15:38:25,228 INFO  L124   PetriNetUnfolderBase]: 0/35 cut-off events.
[2023-08-03 15:38:25,228 INFO  L125   PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-08-03 15:38:25,229 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 15:38:25,229 INFO  L208   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-08-03 15:38:25,229 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2023-08-03 15:38:25,229 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 15:38:25,229 INFO  L85        PathProgramCache]: Analyzing trace with hash 1595964270, now seen corresponding path program 1 times
[2023-08-03 15:38:25,229 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 15:38:25,229 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223980404]
[2023-08-03 15:38:25,229 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 15:38:25,230 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 15:38:25,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 15:38:25,377 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-03 15:38:25,377 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 15:38:25,377 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223980404]
[2023-08-03 15:38:25,378 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223980404] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-03 15:38:25,378 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301768431]
[2023-08-03 15:38:25,378 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 15:38:25,378 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 15:38:25,378 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-03 15:38:25,381 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-03 15:38:25,385 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-08-03 15:38:25,489 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 15:38:25,491 INFO  L262         TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-08-03 15:38:25,492 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-08-03 15:38:25,526 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-03 15:38:25,526 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-08-03 15:38:25,526 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [301768431] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-03 15:38:25,526 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-08-03 15:38:25,527 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5
[2023-08-03 15:38:25,527 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187434130]
[2023-08-03 15:38:25,529 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-03 15:38:25,534 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-03 15:38:25,538 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 15:38:25,553 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-03 15:38:25,553 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-08-03 15:38:25,573 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 272 out of 558
[2023-08-03 15:38:25,576 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 128 transitions, 274 flow. Second operand  has 5 states, 5 states have (on average 273.6) internal successors, (1368), 5 states have internal predecessors, (1368), 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)
[2023-08-03 15:38:25,577 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 15:38:25,577 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 558
[2023-08-03 15:38:25,577 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 15:38:28,024 INFO  L124   PetriNetUnfolderBase]: 23615/38500 cut-off events.
[2023-08-03 15:38:28,024 INFO  L125   PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES.
[2023-08-03 15:38:28,064 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 74193 conditions, 38500 events. 23615/38500 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 858. Compared 309830 event pairs, 312 based on Foata normal form. 5655/39943 useless extension candidates. Maximal degree in co-relation 48774. Up to 34640 conditions per place. 
[2023-08-03 15:38:28,189 INFO  L140   encePairwiseOnDemand]: 521/558 looper letters, 131 selfloop transitions, 5 changer transitions 0/156 dead transitions.
[2023-08-03 15:38:28,189 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 156 transitions, 598 flow
[2023-08-03 15:38:28,190 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-08-03 15:38:28,192 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-03 15:38:28,201 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1563 transitions.
[2023-08-03 15:38:28,204 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5602150537634408
[2023-08-03 15:38:28,205 INFO  L72            ComplementDD]: Start complementDD. Operand 5 states and 1563 transitions.
[2023-08-03 15:38:28,205 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 5 states and 1563 transitions.
[2023-08-03 15:38:28,209 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 15:38:28,212 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1563 transitions.
[2023-08-03 15:38:28,217 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 6 states, 5 states have (on average 312.6) internal successors, (1563), 5 states have internal predecessors, (1563), 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)
[2023-08-03 15:38:28,227 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 6 states, 6 states have (on average 558.0) internal successors, (3348), 6 states have internal predecessors, (3348), 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)
[2023-08-03 15:38:28,228 INFO  L81            ComplementDD]: Finished complementDD. Result  has 6 states, 6 states have (on average 558.0) internal successors, (3348), 6 states have internal predecessors, (3348), 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)
[2023-08-03 15:38:28,230 INFO  L175             Difference]: Start difference. First operand has 94 places, 128 transitions, 274 flow. Second operand 5 states and 1563 transitions.
[2023-08-03 15:38:28,230 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 156 transitions, 598 flow
[2023-08-03 15:38:28,235 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 156 transitions, 594 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-08-03 15:38:28,238 INFO  L231             Difference]: Finished difference. Result has 96 places, 97 transitions, 221 flow
[2023-08-03 15:38:28,239 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=96, PETRI_TRANSITIONS=97}
[2023-08-03 15:38:28,242 INFO  L281   CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places.
[2023-08-03 15:38:28,242 INFO  L495      AbstractCegarLoop]: Abstraction has has 96 places, 97 transitions, 221 flow
[2023-08-03 15:38:28,243 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 273.6) internal successors, (1368), 5 states have internal predecessors, (1368), 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)
[2023-08-03 15:38:28,243 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 15:38:28,243 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-03 15:38:28,251 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-08-03 15:38:28,449 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 15:38:28,449 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2023-08-03 15:38:28,450 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 15:38:28,450 INFO  L85        PathProgramCache]: Analyzing trace with hash 252654780, now seen corresponding path program 1 times
[2023-08-03 15:38:28,450 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 15:38:28,450 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881744252]
[2023-08-03 15:38:28,450 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 15:38:28,450 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 15:38:28,471 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 15:38:28,516 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-03 15:38:28,517 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 15:38:28,517 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881744252]
[2023-08-03 15:38:28,517 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881744252] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-03 15:38:28,517 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-03 15:38:28,517 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-08-03 15:38:28,517 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103922504]
[2023-08-03 15:38:28,517 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-03 15:38:28,517 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-03 15:38:28,517 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 15:38:28,518 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-03 15:38:28,518 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-03 15:38:28,524 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 273 out of 558
[2023-08-03 15:38:28,525 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 97 transitions, 221 flow. Second operand  has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 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)
[2023-08-03 15:38:28,525 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 15:38:28,525 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 558
[2023-08-03 15:38:28,526 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 15:38:30,576 INFO  L124   PetriNetUnfolderBase]: 24065/38179 cut-off events.
[2023-08-03 15:38:30,577 INFO  L125   PetriNetUnfolderBase]: For 1794/1794 co-relation queries the response was YES.
[2023-08-03 15:38:30,611 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 74743 conditions, 38179 events. 24065/38179 cut-off events. For 1794/1794 co-relation queries the response was YES. Maximal size of possible extension queue 835. Compared 282745 event pairs, 10956 based on Foata normal form. 1/33826 useless extension candidates. Maximal degree in co-relation 5099. Up to 35542 conditions per place. 
[2023-08-03 15:38:30,790 INFO  L140   encePairwiseOnDemand]: 555/558 looper letters, 93 selfloop transitions, 2 changer transitions 0/115 dead transitions.
[2023-08-03 15:38:30,790 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 115 transitions, 446 flow
[2023-08-03 15:38:30,790 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-08-03 15:38:30,790 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-03 15:38:30,792 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 914 transitions.
[2023-08-03 15:38:30,792 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5459976105137395
[2023-08-03 15:38:30,792 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 914 transitions.
[2023-08-03 15:38:30,792 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 914 transitions.
[2023-08-03 15:38:30,792 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 15:38:30,793 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 914 transitions.
[2023-08-03 15:38:30,794 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 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)
[2023-08-03 15:38:30,796 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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)
[2023-08-03 15:38:30,797 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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)
[2023-08-03 15:38:30,797 INFO  L175             Difference]: Start difference. First operand has 96 places, 97 transitions, 221 flow. Second operand 3 states and 914 transitions.
[2023-08-03 15:38:30,797 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 115 transitions, 446 flow
[2023-08-03 15:38:30,800 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 115 transitions, 445 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-08-03 15:38:30,802 INFO  L231             Difference]: Finished difference. Result has 97 places, 96 transitions, 219 flow
[2023-08-03 15:38:30,802 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=219, PETRI_PLACES=97, PETRI_TRANSITIONS=96}
[2023-08-03 15:38:30,802 INFO  L281   CegarLoopForPetriNet]: 94 programPoint places, 3 predicate places.
[2023-08-03 15:38:30,803 INFO  L495      AbstractCegarLoop]: Abstraction has has 97 places, 96 transitions, 219 flow
[2023-08-03 15:38:30,803 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 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)
[2023-08-03 15:38:30,803 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 15:38:30,804 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-03 15:38:30,804 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-08-03 15:38:30,805 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2023-08-03 15:38:30,805 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 15:38:30,805 INFO  L85        PathProgramCache]: Analyzing trace with hash 943485636, now seen corresponding path program 1 times
[2023-08-03 15:38:30,805 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 15:38:30,807 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359287252]
[2023-08-03 15:38:30,808 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 15:38:30,808 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 15:38:30,852 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-03 15:38:30,853 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-08-03 15:38:30,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-03 15:38:30,897 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-08-03 15:38:30,897 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-08-03 15:38:30,897 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining)
[2023-08-03 15:38:30,898 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining)
[2023-08-03 15:38:30,898 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining)
[2023-08-03 15:38:30,898 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining)
[2023-08-03 15:38:30,898 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining)
[2023-08-03 15:38:30,898 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-08-03 15:38:30,898 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-08-03 15:38:30,901 INFO  L228   ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances
[2023-08-03 15:38:30,901 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-08-03 15:38:30,929 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 03:38:30 BasicIcfg
[2023-08-03 15:38:30,929 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-08-03 15:38:30,929 INFO  L158              Benchmark]: Toolchain (without parser) took 24574.78ms. Allocated memory was 450.9MB in the beginning and 956.3MB in the end (delta: 505.4MB). Free memory was 414.4MB in the beginning and 559.2MB in the end (delta: -144.8MB). Peak memory consumption was 362.7MB. Max. memory is 16.0GB.
[2023-08-03 15:38:30,930 INFO  L158              Benchmark]: CDTParser took 0.09ms. Allocated memory is still 348.1MB. Free memory is still 305.0MB. There was no memory consumed. Max. memory is 16.0GB.
[2023-08-03 15:38:30,930 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 453.27ms. Allocated memory is still 450.9MB. Free memory was 413.5MB in the beginning and 373.6MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB.
[2023-08-03 15:38:30,930 INFO  L158              Benchmark]: Boogie Procedure Inliner took 35.68ms. Allocated memory is still 450.9MB. Free memory was 373.6MB in the beginning and 370.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
[2023-08-03 15:38:30,930 INFO  L158              Benchmark]: Boogie Preprocessor took 30.32ms. Allocated memory is still 450.9MB. Free memory was 370.6MB in the beginning and 368.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
[2023-08-03 15:38:30,931 INFO  L158              Benchmark]: RCFGBuilder took 447.63ms. Allocated memory is still 450.9MB. Free memory was 367.3MB in the beginning and 343.3MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB.
[2023-08-03 15:38:30,931 INFO  L158              Benchmark]: TraceAbstraction took 23604.05ms. Allocated memory was 450.9MB in the beginning and 956.3MB in the end (delta: 505.4MB). Free memory was 342.2MB in the beginning and 559.2MB in the end (delta: -217.1MB). Peak memory consumption was 289.3MB. Max. memory is 16.0GB.
[2023-08-03 15:38:30,932 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.09ms. Allocated memory is still 348.1MB. Free memory is still 305.0MB. There was no memory consumed. Max. memory is 16.0GB.
 * CACSL2BoogieTranslator took 453.27ms. Allocated memory is still 450.9MB. Free memory was 413.5MB in the beginning and 373.6MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB.
 * Boogie Procedure Inliner took 35.68ms. Allocated memory is still 450.9MB. Free memory was 373.6MB in the beginning and 370.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
 * Boogie Preprocessor took 30.32ms. Allocated memory is still 450.9MB. Free memory was 370.6MB in the beginning and 368.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
 * RCFGBuilder took 447.63ms. Allocated memory is still 450.9MB. Free memory was 367.3MB in the beginning and 343.3MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB.
 * TraceAbstraction took 23604.05ms. Allocated memory was 450.9MB in the beginning and 956.3MB in the end (delta: 505.4MB). Free memory was 342.2MB in the beginning and 559.2MB in the end (delta: -217.1MB). Peak memory consumption was 289.3MB. Max. memory is 16.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - GenericResultAtLocation [Line: 244]: Unsoundness Warning
    unspecified type, defaulting to int C: short [244]
  - GenericResultAtLocation [Line: 244]: Unsoundness Warning
    unspecified type, defaulting to int C: short [244]
  - GenericResultAtLocation [Line: 1044]: Unsoundness Warning
    unspecified type, defaulting to int C: unsigned short [1044]
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 9.1s, 210 PlacesBefore, 63 PlacesAfterwards, 235 TransitionsBefore, 84 TransitionsAfterwards, 17004 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 116 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 4 ChoiceCompositions, 182 TotalNumberOfCompositions, 37879 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13632, independent: 13048, independent conditional: 0, independent unconditional: 13048, dependent: 584, dependent conditional: 0, dependent unconditional: 584, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8177, independent: 8060, independent conditional: 0, independent unconditional: 8060, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13632, independent: 4988, independent conditional: 0, independent unconditional: 4988, dependent: 467, dependent conditional: 0, dependent unconditional: 467, unknown: 8177, unknown conditional: 0, unknown unconditional: 8177] , Statistics on independence cache: Total cache size (in pairs): 314, Positive cache size: 258, Positive conditional cache size: 0, Positive unconditional cache size: 258, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 8.2s, 283 PlacesBefore, 94 PlacesAfterwards, 320 TransitionsBefore, 128 TransitionsAfterwards, 47892 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 165 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 3 ChoiceCompositions, 238 TotalNumberOfCompositions, 110000 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35169, independent: 34326, independent conditional: 0, independent unconditional: 34326, dependent: 843, dependent conditional: 0, dependent unconditional: 843, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 22560, independent: 22421, independent conditional: 0, independent unconditional: 22421, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35169, independent: 11905, independent conditional: 0, independent unconditional: 11905, dependent: 704, dependent conditional: 0, dependent unconditional: 704, unknown: 22560, unknown conditional: 0, unknown unconditional: 22560] , Statistics on independence cache: Total cache size (in pairs): 579, Positive cache size: 509, Positive conditional cache size: 0, Positive unconditional cache size: 509, Negative cache size: 70, Negative conditional cache size: 0, Negative unconditional cache size: 70, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - CounterExampleResult [Line: 1235]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L1240]                     0  pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } };
[L1241-L1244]               0  struct s {
  int datum;
  struct s *next;
} *A;
[L1253]                     0  pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } };
[L1254]                     0  pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } };
[L1267]                     0  struct s *p;
[L1268]                     0  A = malloc(sizeof(struct s))
[L1269]        EXPR         0  \read(*A)
[L1269]        CALL         0  init(A,3)
[L1246]                     0  p -> datum = x
[L1247]                     0  p -> next = ((void *)0)
[L1269]        RET          0  init(A,3)
[L1270]                     0  pthread_t t_ids[2];
[L1270]                     0  int i=0;
               VAL             [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=0, t_ids={17:0}]
[L1270]        COND TRUE    0  i<2
[L1270]        FCALL, FORK  0  pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0))
               VAL             [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=0, pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0))=-1, t_ids={17:0}]
[L1256]                     1  struct s *p = malloc(sizeof(struct s));
[L1257]        CALL         1  init(p,7)
[L1246]                     1  p -> datum = x
               VAL             [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(x)=3, \old(x)=7, __global_lock={3:0}, p={11:0}, p={11:0}, p={15:0}, p={15:0}, x=3, x=7]
[L1247]                     1  p -> next = ((void *)0)
               VAL             [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(x)=3, \old(x)=7, __global_lock={3:0}, p={11:0}, p={11:0}, p={15:0}, p={15:0}, x=3, x=7]
[L1257]        RET          1  init(p,7)
[L1259]        CALL         1  insert(p, &A)
[L1250]        EXPR         1  \read(**list)
               VAL             [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \read(**list)={11:0}, __global_lock={3:0}, list={4:0}, list={4:0}, p={15:0}, p={15:0}]
[L1250]                     1  p->next = *list
[L1251]                     1  *list = p
               VAL             [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, list={4:0}, list={4:0}, p={15:0}, p={15:0}]
[L1259]        RET          1  insert(p, &A)
[L1262]        COND FALSE   1  !(__VERIFIER_nondet_int())
[L1262]        EXPR         1  p->datum
[L1262]        CALL         1  __VERIFIER_assert((p->datum) == 0)
[L1235]        COND TRUE    1  !(cond)
[L1235]                     1  reach_error()
               VAL             [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(cond)=0, __global_lock={3:0}, cond=0]

  - UnprovableResult [Line: 1235]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1270]: 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, 279 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: 9.5s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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
  - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances
    CFG has 4 procedures, 346 locations, 5 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: 14.0s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 367 IncrementalHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 1 mSDtfsCounter, 367 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.2s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 11/16 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!
[2023-08-03 15:38:30,954 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...