./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:03:32,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:03:32,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:03:32,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:03:32,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:03:32,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:03:32,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:03:32,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:03:32,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:03:32,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:03:32,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:03:32,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:03:32,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:03:33,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:03:33,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:03:33,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:03:33,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:03:33,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:03:33,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:03:33,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:03:33,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:03:33,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:03:33,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:03:33,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:03:33,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:03:33,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:03:33,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:03:33,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:03:33,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:03:33,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:03:33,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:03:33,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:03:33,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:03:33,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:03:33,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:03:33,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:03:33,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:03:33,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:03:33,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:03:33,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:03:33,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:03:33,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:03:33,064 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:03:33,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:03:33,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:03:33,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:03:33,067 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:03:33,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:03:33,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:03:33,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:03:33,068 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:03:33,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:03:33,069 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:03:33,069 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:03:33,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:03:33,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:03:33,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:03:33,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:03:33,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:03:33,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:03:33,070 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:03:33,070 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:03:33,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:03:33,070 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:03:33,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:03:33,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:03:33,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:03:33,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:03:33,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:03:33,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:03:33,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:03:33,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:03:33,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:03:33,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:03:33,072 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:03:33,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:03:33,073 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:03:33,073 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:03:33,073 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:03:33,073 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:03:33,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:03:33,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:03:33,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:03:33,405 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:03:33,406 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:03:33,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i [2023-08-29 03:03:34,482 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:03:34,729 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:03:34,730 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i [2023-08-29 03:03:34,739 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac21f6980/fda6d12b8875435c87ad726c36861f40/FLAGc7469649b [2023-08-29 03:03:34,749 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac21f6980/fda6d12b8875435c87ad726c36861f40 [2023-08-29 03:03:34,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:03:34,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:03:34,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:03:34,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:03:34,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:03:34,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:03:34" (1/1) ... [2023-08-29 03:03:34,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2830b0ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:34, skipping insertion in model container [2023-08-29 03:03:34,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:03:34" (1/1) ... [2023-08-29 03:03:34,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:03:34,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:03:35,118 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/28-race_reach_83-list2_racing1.i[47038,47051] [2023-08-29 03:03:35,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:03:35,219 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:03:35,244 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/28-race_reach_83-list2_racing1.i[47038,47051] [2023-08-29 03:03:35,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:03:35,317 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:03:35,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:35 WrapperNode [2023-08-29 03:03:35,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:03:35,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:03:35,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:03:35,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:03:35,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:35" (1/1) ... [2023-08-29 03:03:35,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:35" (1/1) ... [2023-08-29 03:03:35,391 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 522 [2023-08-29 03:03:35,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:03:35,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:03:35,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:03:35,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:03:35,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:35" (1/1) ... [2023-08-29 03:03:35,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:35" (1/1) ... [2023-08-29 03:03:35,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:35" (1/1) ... [2023-08-29 03:03:35,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:35" (1/1) ... [2023-08-29 03:03:35,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:35" (1/1) ... [2023-08-29 03:03:35,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:35" (1/1) ... [2023-08-29 03:03:35,459 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:35" (1/1) ... [2023-08-29 03:03:35,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:35" (1/1) ... [2023-08-29 03:03:35,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:03:35,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:03:35,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:03:35,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:03:35,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:35" (1/1) ... [2023-08-29 03:03:35,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:03:35,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:03:35,523 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) [2023-08-29 03:03:35,526 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 [2023-08-29 03:03:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:03:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 03:03:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-29 03:03:35,562 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-29 03:03:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:03:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:03:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-29 03:03:35,562 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-29 03:03:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:03:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 03:03:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 03:03:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:03:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 03:03:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-08-29 03:03:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-08-29 03:03:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:03:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:03:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:03:35,565 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 03:03:35,754 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:03:35,758 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:03:36,342 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:03:36,348 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:03:36,348 INFO L302 CfgBuilder]: Removed 28 assume(true) statements. [2023-08-29 03:03:36,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:03:36 BoogieIcfgContainer [2023-08-29 03:03:36,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:03:36,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:03:36,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:03:36,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:03:36,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:03:34" (1/3) ... [2023-08-29 03:03:36,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688af437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:03:36, skipping insertion in model container [2023-08-29 03:03:36,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:03:35" (2/3) ... [2023-08-29 03:03:36,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688af437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:03:36, skipping insertion in model container [2023-08-29 03:03:36,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:03:36" (3/3) ... [2023-08-29 03:03:36,355 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2023-08-29 03:03:36,359 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:03:36,365 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:03:36,365 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-08-29 03:03:36,365 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:03:36,463 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-08-29 03:03:36,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 522 places, 561 transitions, 1164 flow [2023-08-29 03:03:36,849 INFO L130 PetriNetUnfolder]: 165/1600 cut-off events. [2023-08-29 03:03:36,849 INFO L131 PetriNetUnfolder]: For 36/66 co-relation queries the response was YES. [2023-08-29 03:03:36,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1661 conditions, 1600 events. 165/1600 cut-off events. For 36/66 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11505 event pairs, 0 based on Foata normal form. 0/1337 useless extension candidates. Maximal degree in co-relation 821. Up to 16 conditions per place. [2023-08-29 03:03:36,878 INFO L82 GeneralOperation]: Start removeDead. Operand has 522 places, 561 transitions, 1164 flow [2023-08-29 03:03:36,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 522 places, 561 transitions, 1164 flow [2023-08-29 03:03:36,925 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:03:36,941 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 522 places, 561 transitions, 1164 flow [2023-08-29 03:03:36,945 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 522 places, 561 transitions, 1164 flow [2023-08-29 03:03:36,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 522 places, 561 transitions, 1164 flow [2023-08-29 03:03:37,239 INFO L130 PetriNetUnfolder]: 165/1600 cut-off events. [2023-08-29 03:03:37,240 INFO L131 PetriNetUnfolder]: For 36/66 co-relation queries the response was YES. [2023-08-29 03:03:37,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1661 conditions, 1600 events. 165/1600 cut-off events. For 36/66 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11505 event pairs, 0 based on Foata normal form. 0/1337 useless extension candidates. Maximal degree in co-relation 821. Up to 16 conditions per place. [2023-08-29 03:03:37,359 INFO L119 LiptonReduction]: Number of co-enabled transitions 137088 [2023-08-29 03:03:59,061 WARN L222 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 168 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:04:07,576 WARN L222 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 154 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:04:17,117 WARN L222 SmtUtils]: Spent 9.54s on a formula simplification that was a NOOP. DAG size: 168 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:04:24,628 WARN L222 SmtUtils]: Spent 7.51s on a formula simplification that was a NOOP. DAG size: 154 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:04:36,067 WARN L222 SmtUtils]: Spent 11.38s on a formula simplification. DAG size of input: 287 DAG size of output: 285 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:04:41,200 WARN L222 SmtUtils]: Spent 5.13s on a formula simplification that was a NOOP. DAG size: 277 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:04:46,211 WARN L222 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 287 DAG size of output: 285 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:04:48,886 INFO L134 LiptonReduction]: Checked pairs total: 801213 [2023-08-29 03:04:48,886 INFO L136 LiptonReduction]: Total number of compositions: 376 [2023-08-29 03:04:48,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:04:48,900 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;@6ddaec0f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:04:48,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2023-08-29 03:04:48,911 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:04:48,912 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:04:48,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:04:48,912 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:04:48,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:04:48,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:04:48,917 INFO L85 PathProgramCache]: Analyzing trace with hash 2037, now seen corresponding path program 1 times [2023-08-29 03:04:48,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:04:48,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081551834] [2023-08-29 03:04:48,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:04:48,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:04:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:04:49,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:04:49,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:04:49,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081551834] [2023-08-29 03:04:49,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081551834] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:04:49,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:04:49,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:04:49,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257004461] [2023-08-29 03:04:49,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:04:49,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:04:49,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:04:49,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:04:49,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:04:49,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 517 out of 937 [2023-08-29 03:04:49,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 262 transitions, 566 flow. Second operand has 2 states, 2 states have (on average 517.5) internal successors, (1035), 2 states have internal predecessors, (1035), 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) [2023-08-29 03:04:49,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:04:49,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 517 of 937 [2023-08-29 03:04:49,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:05:50,229 INFO L130 PetriNetUnfolder]: 379221/748053 cut-off events. [2023-08-29 03:05:50,229 INFO L131 PetriNetUnfolder]: For 8301/8301 co-relation queries the response was YES. [2023-08-29 03:05:52,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1254981 conditions, 748053 events. 379221/748053 cut-off events. For 8301/8301 co-relation queries the response was YES. Maximal size of possible extension queue 12254. Compared 9778784 event pairs, 346344 based on Foata normal form. 54550/706428 useless extension candidates. Maximal degree in co-relation 1179675. Up to 501559 conditions per place. [2023-08-29 03:05:57,150 INFO L137 encePairwiseOnDemand]: 906/937 looper letters, 97 selfloop transitions, 0 changer transitions 0/231 dead transitions. [2023-08-29 03:05:57,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 231 transitions, 698 flow [2023-08-29 03:05:57,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:05:57,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:05:57,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1162 transitions. [2023-08-29 03:05:57,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6200640341515475 [2023-08-29 03:05:57,168 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1162 transitions. [2023-08-29 03:05:57,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1162 transitions. [2023-08-29 03:05:57,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:05:57,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1162 transitions. [2023-08-29 03:05:57,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 581.0) internal successors, (1162), 2 states have internal predecessors, (1162), 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) [2023-08-29 03:05:57,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 937.0) internal successors, (2811), 3 states have internal predecessors, (2811), 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) [2023-08-29 03:05:57,188 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 937.0) internal successors, (2811), 3 states have internal predecessors, (2811), 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) [2023-08-29 03:05:57,190 INFO L175 Difference]: Start difference. First operand has 233 places, 262 transitions, 566 flow. Second operand 2 states and 1162 transitions. [2023-08-29 03:05:57,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 231 transitions, 698 flow [2023-08-29 03:05:58,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 231 transitions, 698 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:05:58,153 INFO L231 Difference]: Finished difference. Result has 225 places, 231 transitions, 504 flow [2023-08-29 03:05:58,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=937, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=504, PETRI_PLACES=225, PETRI_TRANSITIONS=231} [2023-08-29 03:05:58,157 INFO L281 CegarLoopForPetriNet]: 233 programPoint places, -8 predicate places. [2023-08-29 03:05:58,158 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 231 transitions, 504 flow [2023-08-29 03:05:58,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 517.5) internal successors, (1035), 2 states have internal predecessors, (1035), 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) [2023-08-29 03:05:58,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:05:58,159 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 03:05:58,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:05:58,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:05:58,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:05:58,160 INFO L85 PathProgramCache]: Analyzing trace with hash 485775229, now seen corresponding path program 1 times [2023-08-29 03:05:58,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:05:58,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588483381] [2023-08-29 03:05:58,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:05:58,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:05:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:05:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:05:58,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:05:58,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588483381] [2023-08-29 03:05:58,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588483381] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:05:58,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:05:58,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:05:58,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386195629] [2023-08-29 03:05:58,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:05:58,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:05:58,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:05:58,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:05:58,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:05:58,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 937 [2023-08-29 03:05:58,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 231 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 514.6666666666666) internal successors, (1544), 3 states have internal predecessors, (1544), 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) [2023-08-29 03:05:58,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:05:58,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 937 [2023-08-29 03:05:58,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:06:59,244 INFO L130 PetriNetUnfolder]: 375397/738924 cut-off events. [2023-08-29 03:06:59,244 INFO L131 PetriNetUnfolder]: For 8486/8486 co-relation queries the response was YES. [2023-08-29 03:07:01,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240198 conditions, 738924 events. 375397/738924 cut-off events. For 8486/8486 co-relation queries the response was YES. Maximal size of possible extension queue 11951. Compared 9626965 event pairs, 320340 based on Foata normal form. 0/643742 useless extension candidates. Maximal degree in co-relation 1240192. Up to 495941 conditions per place. [2023-08-29 03:07:05,033 INFO L137 encePairwiseOnDemand]: 934/937 looper letters, 112 selfloop transitions, 2 changer transitions 0/248 dead transitions. [2023-08-29 03:07:05,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 248 transitions, 766 flow [2023-08-29 03:07:05,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:07:05,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:07:05,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1654 transitions. [2023-08-29 03:07:05,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5884027036641765 [2023-08-29 03:07:05,044 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1654 transitions. [2023-08-29 03:07:05,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1654 transitions. [2023-08-29 03:07:05,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:07:05,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1654 transitions. [2023-08-29 03:07:05,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 551.3333333333334) internal successors, (1654), 3 states have internal predecessors, (1654), 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) [2023-08-29 03:07:05,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 937.0) internal successors, (3748), 4 states have internal predecessors, (3748), 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) [2023-08-29 03:07:05,054 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 937.0) internal successors, (3748), 4 states have internal predecessors, (3748), 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) [2023-08-29 03:07:05,054 INFO L175 Difference]: Start difference. First operand has 225 places, 231 transitions, 504 flow. Second operand 3 states and 1654 transitions. [2023-08-29 03:07:05,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 248 transitions, 766 flow [2023-08-29 03:07:05,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 248 transitions, 766 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:07:05,627 INFO L231 Difference]: Finished difference. Result has 228 places, 231 transitions, 512 flow [2023-08-29 03:07:05,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=937, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=512, PETRI_PLACES=228, PETRI_TRANSITIONS=231} [2023-08-29 03:07:05,628 INFO L281 CegarLoopForPetriNet]: 233 programPoint places, -5 predicate places. [2023-08-29 03:07:05,628 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 231 transitions, 512 flow [2023-08-29 03:07:05,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.6666666666666) internal successors, (1544), 3 states have internal predecessors, (1544), 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) [2023-08-29 03:07:05,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:07:05,630 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:07:05,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:07:05,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:07:05,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:07:05,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1864618988, now seen corresponding path program 1 times [2023-08-29 03:07:05,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:07:05,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667925451] [2023-08-29 03:07:05,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:07:05,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:07:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:07:05,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:07:05,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:07:05,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667925451] [2023-08-29 03:07:05,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667925451] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:07:05,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993692716] [2023-08-29 03:07:05,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:07:05,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:07:05,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:07:05,715 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) [2023-08-29 03:07:05,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 03:07:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:07:05,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 03:07:05,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:07:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:07:05,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 03:07:05,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993692716] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:07:05,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 03:07:05,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-29 03:07:05,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620694314] [2023-08-29 03:07:05,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:07:05,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:07:05,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:07:05,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:07:05,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 03:07:05,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 504 out of 937 [2023-08-29 03:07:05,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 231 transitions, 512 flow. Second operand has 3 states, 3 states have (on average 507.0) internal successors, (1521), 3 states have internal predecessors, (1521), 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) [2023-08-29 03:07:05,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:07:05,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 504 of 937 [2023-08-29 03:07:05,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:08:08,498 INFO L130 PetriNetUnfolder]: 375397/738301 cut-off events. [2023-08-29 03:08:08,501 INFO L131 PetriNetUnfolder]: For 8518/8518 co-relation queries the response was YES. [2023-08-29 03:08:11,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1239622 conditions, 738301 events. 375397/738301 cut-off events. For 8518/8518 co-relation queries the response was YES. Maximal size of possible extension queue 11972. Compared 9614477 event pairs, 343446 based on Foata normal form. 0/642869 useless extension candidates. Maximal degree in co-relation 1239614. Up to 495959 conditions per place. [2023-08-29 03:08:14,335 INFO L137 encePairwiseOnDemand]: 933/937 looper letters, 96 selfloop transitions, 1 changer transitions 0/228 dead transitions. [2023-08-29 03:08:14,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 228 transitions, 700 flow [2023-08-29 03:08:14,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:08:14,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:08:14,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1612 transitions. [2023-08-29 03:08:14,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5734614016364283 [2023-08-29 03:08:14,359 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1612 transitions. [2023-08-29 03:08:14,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1612 transitions. [2023-08-29 03:08:14,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:08:14,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1612 transitions. [2023-08-29 03:08:14,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 537.3333333333334) internal successors, (1612), 3 states have internal predecessors, (1612), 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) [2023-08-29 03:08:14,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 937.0) internal successors, (3748), 4 states have internal predecessors, (3748), 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) [2023-08-29 03:08:14,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 937.0) internal successors, (3748), 4 states have internal predecessors, (3748), 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) [2023-08-29 03:08:14,368 INFO L175 Difference]: Start difference. First operand has 228 places, 231 transitions, 512 flow. Second operand 3 states and 1612 transitions. [2023-08-29 03:08:14,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 228 transitions, 700 flow [2023-08-29 03:08:14,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 228 transitions, 696 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:08:14,933 INFO L231 Difference]: Finished difference. Result has 225 places, 228 transitions, 504 flow [2023-08-29 03:08:14,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=937, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=225, PETRI_TRANSITIONS=228} [2023-08-29 03:08:14,934 INFO L281 CegarLoopForPetriNet]: 233 programPoint places, -8 predicate places. [2023-08-29 03:08:14,934 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 228 transitions, 504 flow [2023-08-29 03:08:14,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 507.0) internal successors, (1521), 3 states have internal predecessors, (1521), 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) [2023-08-29 03:08:14,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:08:14,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:08:14,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 03:08:15,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:08:15,139 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:08:15,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:08:15,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1647698785, now seen corresponding path program 1 times [2023-08-29 03:08:15,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:08:15,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837415063] [2023-08-29 03:08:15,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:08:15,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:08:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:08:15,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:08:15,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:08:15,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837415063] [2023-08-29 03:08:15,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837415063] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:08:15,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:08:15,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:08:15,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533242104] [2023-08-29 03:08:15,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:08:15,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:08:15,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:08:15,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:08:15,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:08:15,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 937 [2023-08-29 03:08:15,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 228 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 412.6666666666667) internal successors, (2476), 6 states have internal predecessors, (2476), 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) [2023-08-29 03:08:15,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:08:15,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 937 [2023-08-29 03:08:15,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand