./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread/lazy01.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/pthread/lazy01.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 b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 09:16:32,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 09:16:32,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 09:16:32,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 09:16:32,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 09:16:32,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 09:16:32,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 09:16:32,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 09:16:32,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 09:16:32,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 09:16:32,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 09:16:32,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 09:16:32,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 09:16:32,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 09:16:32,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 09:16:32,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 09:16:32,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 09:16:32,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 09:16:32,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 09:16:32,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 09:16:32,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 09:16:32,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 09:16:32,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 09:16:32,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 09:16:32,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 09:16:32,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 09:16:32,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 09:16:32,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 09:16:32,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 09:16:32,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 09:16:32,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 09:16:32,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 09:16:32,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 09:16:32,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 09:16:32,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 09:16:32,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 09:16:32,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 09:16:32,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 09:16:32,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 09:16:32,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 09:16:32,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 09:16:32,939 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 09:16:32,977 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 09:16:32,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 09:16:32,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 09:16:32,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 09:16:32,979 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 09:16:32,979 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 09:16:32,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 09:16:32,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 09:16:32,980 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 09:16:32,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 09:16:32,981 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 09:16:32,981 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 09:16:32,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 09:16:32,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 09:16:32,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 09:16:32,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 09:16:32,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 09:16:32,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 09:16:32,982 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 09:16:32,983 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 09:16:32,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 09:16:32,983 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 09:16:32,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 09:16:32,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 09:16:32,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 09:16:32,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 09:16:32,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:16:32,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 09:16:32,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 09:16:32,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 09:16:32,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 09:16:32,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 09:16:32,985 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 09:16:32,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 09:16:32,985 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 09:16:32,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 09:16:32,986 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 09:16:32,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 09:16:33,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 09:16:33,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 09:16:33,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 09:16:33,348 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 09:16:33,348 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 09:16:33,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2023-08-29 09:16:34,548 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 09:16:34,813 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 09:16:34,814 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2023-08-29 09:16:34,827 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6d3029de/c74e0f0586b846c0bb335175bf356621/FLAG3ebedaeec [2023-08-29 09:16:34,848 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6d3029de/c74e0f0586b846c0bb335175bf356621 [2023-08-29 09:16:34,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 09:16:34,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 09:16:34,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 09:16:34,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 09:16:34,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 09:16:34,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:16:34" (1/1) ... [2023-08-29 09:16:34,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30802525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:34, skipping insertion in model container [2023-08-29 09:16:34,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:16:34" (1/1) ... [2023-08-29 09:16:34,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 09:16:34,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 09:16:35,234 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i[31042,31055] [2023-08-29 09:16:35,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:16:35,255 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 09:16:35,300 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i[31042,31055] [2023-08-29 09:16:35,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:16:35,363 INFO L208 MainTranslator]: Completed translation [2023-08-29 09:16:35,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:35 WrapperNode [2023-08-29 09:16:35,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 09:16:35,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 09:16:35,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 09:16:35,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 09:16:35,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:35" (1/1) ... [2023-08-29 09:16:35,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:35" (1/1) ... [2023-08-29 09:16:35,431 INFO L138 Inliner]: procedures = 169, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2023-08-29 09:16:35,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 09:16:35,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 09:16:35,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 09:16:35,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 09:16:35,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:35" (1/1) ... [2023-08-29 09:16:35,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:35" (1/1) ... [2023-08-29 09:16:35,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:35" (1/1) ... [2023-08-29 09:16:35,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:35" (1/1) ... [2023-08-29 09:16:35,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:35" (1/1) ... [2023-08-29 09:16:35,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:35" (1/1) ... [2023-08-29 09:16:35,474 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:35" (1/1) ... [2023-08-29 09:16:35,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:35" (1/1) ... [2023-08-29 09:16:35,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 09:16:35,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 09:16:35,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 09:16:35,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 09:16:35,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:35" (1/1) ... [2023-08-29 09:16:35,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:16:35,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 09:16:35,519 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 09:16:35,540 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 09:16:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 09:16:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 09:16:35,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 09:16:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 09:16:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 09:16:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 09:16:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 09:16:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 09:16:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 09:16:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 09:16:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 09:16:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 09:16:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 09:16:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 09:16:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 09:16:35,565 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 09:16:35,716 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 09:16:35,718 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 09:16:35,969 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 09:16:35,976 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 09:16:35,978 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 09:16:35,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:16:35 BoogieIcfgContainer [2023-08-29 09:16:35,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 09:16:35,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 09:16:35,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 09:16:35,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 09:16:35,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:16:34" (1/3) ... [2023-08-29 09:16:35,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658477aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:16:35, skipping insertion in model container [2023-08-29 09:16:35,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:16:35" (2/3) ... [2023-08-29 09:16:35,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658477aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:16:35, skipping insertion in model container [2023-08-29 09:16:35,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:16:35" (3/3) ... [2023-08-29 09:16:35,991 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2023-08-29 09:16:35,999 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 09:16:36,008 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 09:16:36,009 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-29 09:16:36,009 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 09:16:36,107 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 09:16:36,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 123 transitions, 270 flow [2023-08-29 09:16:36,217 INFO L130 PetriNetUnfolder]: 1/120 cut-off events. [2023-08-29 09:16:36,217 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 09:16:36,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 120 events. 1/120 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 154 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-29 09:16:36,223 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 123 transitions, 270 flow [2023-08-29 09:16:36,229 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 109 transitions, 233 flow [2023-08-29 09:16:36,233 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:16:36,245 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 109 transitions, 233 flow [2023-08-29 09:16:36,252 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 109 transitions, 233 flow [2023-08-29 09:16:36,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 109 transitions, 233 flow [2023-08-29 09:16:36,297 INFO L130 PetriNetUnfolder]: 1/109 cut-off events. [2023-08-29 09:16:36,297 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:16:36,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 109 events. 1/109 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 154 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-29 09:16:36,303 INFO L119 LiptonReduction]: Number of co-enabled transitions 3478 [2023-08-29 09:16:39,294 INFO L134 LiptonReduction]: Checked pairs total: 12191 [2023-08-29 09:16:39,295 INFO L136 LiptonReduction]: Total number of compositions: 79 [2023-08-29 09:16:39,306 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:16:39,310 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;@5fa6936c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:16:39,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-29 09:16:39,315 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-29 09:16:39,315 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:16:39,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:16:39,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 09:16:39,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 09:16:39,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:16:39,320 INFO L85 PathProgramCache]: Analyzing trace with hash 387824821, now seen corresponding path program 1 times [2023-08-29 09:16:39,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:16:39,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153799139] [2023-08-29 09:16:39,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:16:39,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:16:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:16:39,584 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 09:16:39,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:16:39,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153799139] [2023-08-29 09:16:39,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153799139] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:16:39,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:16:39,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:16:39,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966465884] [2023-08-29 09:16:39,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:16:39,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:16:39,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:16:39,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:16:39,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:16:39,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 202 [2023-08-29 09:16:39,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 09:16:39,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:16:39,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 202 [2023-08-29 09:16:39,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:16:40,058 INFO L130 PetriNetUnfolder]: 2190/3706 cut-off events. [2023-08-29 09:16:40,060 INFO L131 PetriNetUnfolder]: For 247/247 co-relation queries the response was YES. [2023-08-29 09:16:40,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7360 conditions, 3706 events. 2190/3706 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 22407 event pairs, 907 based on Foata normal form. 0/3473 useless extension candidates. Maximal degree in co-relation 6329. Up to 1865 conditions per place. [2023-08-29 09:16:40,088 INFO L137 encePairwiseOnDemand]: 187/202 looper letters, 45 selfloop transitions, 8 changer transitions 2/61 dead transitions. [2023-08-29 09:16:40,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 61 transitions, 259 flow [2023-08-29 09:16:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:16:40,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:16:40,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2023-08-29 09:16:40,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6237623762376238 [2023-08-29 09:16:40,108 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2023-08-29 09:16:40,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2023-08-29 09:16:40,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:16:40,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2023-08-29 09:16:40,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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 09:16:40,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 09:16:40,121 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 09:16:40,123 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 97 flow. Second operand 3 states and 378 transitions. [2023-08-29 09:16:40,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 61 transitions, 259 flow [2023-08-29 09:16:40,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 61 transitions, 243 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 09:16:40,131 INFO L231 Difference]: Finished difference. Result has 45 places, 44 transitions, 148 flow [2023-08-29 09:16:40,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=45, PETRI_TRANSITIONS=44} [2023-08-29 09:16:40,135 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -5 predicate places. [2023-08-29 09:16:40,135 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 44 transitions, 148 flow [2023-08-29 09:16:40,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 09:16:40,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:16:40,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:16:40,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 09:16:40,137 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 09:16:40,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:16:40,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1537518097, now seen corresponding path program 1 times [2023-08-29 09:16:40,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:16:40,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48433527] [2023-08-29 09:16:40,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:16:40,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:16:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:16:40,186 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 09:16:40,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:16:40,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48433527] [2023-08-29 09:16:40,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48433527] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:16:40,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:16:40,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:16:40,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080686512] [2023-08-29 09:16:40,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:16:40,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:16:40,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:16:40,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:16:40,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:16:40,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 202 [2023-08-29 09:16:40,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 44 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 09:16:40,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:16:40,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 202 [2023-08-29 09:16:40,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:16:40,549 INFO L130 PetriNetUnfolder]: 1944/3576 cut-off events. [2023-08-29 09:16:40,549 INFO L131 PetriNetUnfolder]: For 1301/1329 co-relation queries the response was YES. [2023-08-29 09:16:40,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8225 conditions, 3576 events. 1944/3576 cut-off events. For 1301/1329 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 24375 event pairs, 1067 based on Foata normal form. 2/3234 useless extension candidates. Maximal degree in co-relation 3930. Up to 2226 conditions per place. [2023-08-29 09:16:40,573 INFO L137 encePairwiseOnDemand]: 195/202 looper letters, 38 selfloop transitions, 10 changer transitions 0/62 dead transitions. [2023-08-29 09:16:40,573 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 62 transitions, 301 flow [2023-08-29 09:16:40,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:16:40,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:16:40,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2023-08-29 09:16:40,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5924092409240924 [2023-08-29 09:16:40,575 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 359 transitions. [2023-08-29 09:16:40,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 359 transitions. [2023-08-29 09:16:40,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:16:40,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 359 transitions. [2023-08-29 09:16:40,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 09:16:40,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 09:16:40,580 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 09:16:40,580 INFO L175 Difference]: Start difference. First operand has 45 places, 44 transitions, 148 flow. Second operand 3 states and 359 transitions. [2023-08-29 09:16:40,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 62 transitions, 301 flow [2023-08-29 09:16:40,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 62 transitions, 279 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 09:16:40,587 INFO L231 Difference]: Finished difference. Result has 47 places, 52 transitions, 218 flow [2023-08-29 09:16:40,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=47, PETRI_TRANSITIONS=52} [2023-08-29 09:16:40,588 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-08-29 09:16:40,588 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 52 transitions, 218 flow [2023-08-29 09:16:40,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 09:16:40,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:16:40,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:16:40,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 09:16:40,589 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 09:16:40,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:16:40,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1641782495, now seen corresponding path program 1 times [2023-08-29 09:16:40,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:16:40,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101272724] [2023-08-29 09:16:40,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:16:40,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:16:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:16:40,631 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 09:16:40,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:16:40,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101272724] [2023-08-29 09:16:40,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101272724] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:16:40,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:16:40,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:16:40,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821093960] [2023-08-29 09:16:40,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:16:40,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:16:40,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:16:40,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:16:40,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:16:40,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 202 [2023-08-29 09:16:40,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 52 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 09:16:40,655 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:16:40,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 202 [2023-08-29 09:16:40,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:16:41,075 INFO L130 PetriNetUnfolder]: 2719/4741 cut-off events. [2023-08-29 09:16:41,076 INFO L131 PetriNetUnfolder]: For 3200/3304 co-relation queries the response was YES. [2023-08-29 09:16:41,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12404 conditions, 4741 events. 2719/4741 cut-off events. For 3200/3304 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 31610 event pairs, 1337 based on Foata normal form. 2/4296 useless extension candidates. Maximal degree in co-relation 6716. Up to 3156 conditions per place. [2023-08-29 09:16:41,104 INFO L137 encePairwiseOnDemand]: 195/202 looper letters, 47 selfloop transitions, 13 changer transitions 0/73 dead transitions. [2023-08-29 09:16:41,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 73 transitions, 425 flow [2023-08-29 09:16:41,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:16:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:16:41,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2023-08-29 09:16:41,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.594059405940594 [2023-08-29 09:16:41,106 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 360 transitions. [2023-08-29 09:16:41,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions. [2023-08-29 09:16:41,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:16:41,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions. [2023-08-29 09:16:41,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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 09:16:41,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 09:16:41,110 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 09:16:41,110 INFO L175 Difference]: Start difference. First operand has 47 places, 52 transitions, 218 flow. Second operand 3 states and 360 transitions. [2023-08-29 09:16:41,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 73 transitions, 425 flow [2023-08-29 09:16:41,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 73 transitions, 395 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 09:16:41,123 INFO L231 Difference]: Finished difference. Result has 49 places, 61 transitions, 312 flow [2023-08-29 09:16:41,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=49, PETRI_TRANSITIONS=61} [2023-08-29 09:16:41,124 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-08-29 09:16:41,124 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 61 transitions, 312 flow [2023-08-29 09:16:41,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 09:16:41,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:16:41,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:16:41,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 09:16:41,125 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 09:16:41,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:16:41,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1442035398, now seen corresponding path program 1 times [2023-08-29 09:16:41,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:16:41,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832585932] [2023-08-29 09:16:41,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:16:41,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:16:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:16:41,323 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 09:16:41,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:16:41,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832585932] [2023-08-29 09:16:41,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832585932] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:16:41,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:16:41,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 09:16:41,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179479081] [2023-08-29 09:16:41,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:16:41,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:16:41,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:16:41,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:16:41,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:16:41,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 202 [2023-08-29 09:16:41,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 61 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 09:16:41,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:16:41,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 202 [2023-08-29 09:16:41,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:16:41,432 INFO L130 PetriNetUnfolder]: 128/437 cut-off events. [2023-08-29 09:16:41,432 INFO L131 PetriNetUnfolder]: For 288/288 co-relation queries the response was YES. [2023-08-29 09:16:41,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 437 events. 128/437 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2194 event pairs, 34 based on Foata normal form. 84/521 useless extension candidates. Maximal degree in co-relation 591. Up to 212 conditions per place. [2023-08-29 09:16:41,434 INFO L137 encePairwiseOnDemand]: 196/202 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2023-08-29 09:16:41,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 211 flow [2023-08-29 09:16:41,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:16:41,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:16:41,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2023-08-29 09:16:41,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5858085808580858 [2023-08-29 09:16:41,436 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2023-08-29 09:16:41,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2023-08-29 09:16:41,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:16:41,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2023-08-29 09:16:41,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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 09:16:41,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 09:16:41,440 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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 09:16:41,440 INFO L175 Difference]: Start difference. First operand has 49 places, 61 transitions, 312 flow. Second operand 3 states and 355 transitions. [2023-08-29 09:16:41,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 211 flow [2023-08-29 09:16:41,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 42 transitions, 173 flow, removed 13 selfloop flow, removed 6 redundant places. [2023-08-29 09:16:41,443 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-08-29 09:16:41,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2023-08-29 09:16:41,444 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -10 predicate places. [2023-08-29 09:16:41,444 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-08-29 09:16:41,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 09:16:41,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2023-08-29 09:16:41,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2023-08-29 09:16:41,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2023-08-29 09:16:41,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2023-08-29 09:16:41,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2023-08-29 09:16:41,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2023-08-29 09:16:41,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2023-08-29 09:16:41,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2023-08-29 09:16:41,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2023-08-29 09:16:41,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2023-08-29 09:16:41,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 16 remaining) [2023-08-29 09:16:41,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2023-08-29 09:16:41,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2023-08-29 09:16:41,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2023-08-29 09:16:41,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2023-08-29 09:16:41,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2023-08-29 09:16:41,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 09:16:41,451 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-29 09:16:41,455 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 09:16:41,455 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 09:16:41,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:16:41 BasicIcfg [2023-08-29 09:16:41,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 09:16:41,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 09:16:41,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 09:16:41,459 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 09:16:41,460 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:16:35" (3/4) ... [2023-08-29 09:16:41,462 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 09:16:41,467 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 09:16:41,467 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 09:16:41,467 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-29 09:16:41,470 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-08-29 09:16:41,471 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 09:16:41,471 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 09:16:41,471 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 09:16:41,520 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 09:16:41,520 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 09:16:41,521 INFO L158 Benchmark]: Toolchain (without parser) took 6664.70ms. Allocated memory was 75.5MB in the beginning and 289.4MB in the end (delta: 213.9MB). Free memory was 45.0MB in the beginning and 177.0MB in the end (delta: -132.0MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. [2023-08-29 09:16:41,521 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 75.5MB. Free memory was 52.5MB in the beginning and 52.4MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 09:16:41,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.63ms. Allocated memory is still 75.5MB. Free memory was 44.8MB in the beginning and 48.0MB in the end (delta: -3.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2023-08-29 09:16:41,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.89ms. Allocated memory is still 75.5MB. Free memory was 48.0MB in the beginning and 46.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 09:16:41,522 INFO L158 Benchmark]: Boogie Preprocessor took 52.09ms. Allocated memory is still 75.5MB. Free memory was 45.7MB in the beginning and 44.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 09:16:41,522 INFO L158 Benchmark]: RCFGBuilder took 496.17ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 44.1MB in the beginning and 68.1MB in the end (delta: -23.9MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-08-29 09:16:41,523 INFO L158 Benchmark]: TraceAbstraction took 5474.92ms. Allocated memory was 94.4MB in the beginning and 289.4MB in the end (delta: 195.0MB). Free memory was 67.6MB in the beginning and 180.1MB in the end (delta: -112.5MB). Peak memory consumption was 80.2MB. Max. memory is 16.1GB. [2023-08-29 09:16:41,523 INFO L158 Benchmark]: Witness Printer took 61.47ms. Allocated memory is still 289.4MB. Free memory was 180.1MB in the beginning and 177.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 09:16:41,525 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 75.5MB. Free memory was 52.5MB in the beginning and 52.4MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 506.63ms. Allocated memory is still 75.5MB. Free memory was 44.8MB in the beginning and 48.0MB in the end (delta: -3.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.89ms. Allocated memory is still 75.5MB. Free memory was 48.0MB in the beginning and 46.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.09ms. Allocated memory is still 75.5MB. Free memory was 45.7MB in the beginning and 44.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 496.17ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 44.1MB in the beginning and 68.1MB in the end (delta: -23.9MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5474.92ms. Allocated memory was 94.4MB in the beginning and 289.4MB in the end (delta: 195.0MB). Free memory was 67.6MB in the beginning and 180.1MB in the end (delta: -112.5MB). Peak memory consumption was 80.2MB. Max. memory is 16.1GB. * Witness Printer took 61.47ms. Allocated memory is still 289.4MB. Free memory was 180.1MB in the beginning and 177.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 118 PlacesBefore, 50 PlacesAfterwards, 109 TransitionsBefore, 41 TransitionsAfterwards, 3478 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 79 TotalNumberOfCompositions, 12191 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4419, independent: 4097, independent conditional: 0, independent unconditional: 4097, dependent: 322, dependent conditional: 0, dependent unconditional: 322, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1741, independent: 1696, independent conditional: 0, independent unconditional: 1696, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4419, independent: 2401, independent conditional: 0, independent unconditional: 2401, dependent: 277, dependent conditional: 0, dependent unconditional: 277, unknown: 1741, unknown conditional: 0, unknown unconditional: 1741] , Statistics on independence cache: Total cache size (in pairs): 251, Positive cache size: 227, Positive conditional cache size: 0, Positive unconditional cache size: 227, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 173 locations, 16 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: 5.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 181 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 313 IncrementalHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 36 mSDtfsCounter, 313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 62 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 09:16:41,553 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE