./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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/13-privatized_33-traces-v-matters_true.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 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 20:39:45,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:39:45,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:39:45,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:39:45,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:39:45,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:39:45,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:39:45,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:39:45,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:39:45,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:39:45,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:39:45,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:39:45,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:39:45,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:39:45,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:39:45,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:39:45,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:39:45,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:39:45,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:39:45,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:39:45,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:39:45,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:39:45,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:39:45,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:39:45,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:39:45,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:39:45,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:39:45,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:39:45,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:39:45,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:39:45,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:39:45,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:39:45,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:39:45,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:39:45,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:39:45,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:39:45,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:39:45,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:39:45,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:39:45,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:39:45,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:39:45,740 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:39:45,755 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:39:45,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:39:45,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:39:45,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:39:45,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:39:45,756 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:39:45,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:39:45,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:39:45,757 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:39:45,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:39:45,757 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:39:45,757 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:39:45,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:39:45,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:39:45,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:39:45,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:39:45,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:39:45,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:39:45,758 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:39:45,759 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:39:45,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:39:45,759 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:39:45,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:39:45,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:39:45,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:39:45,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:39:45,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:39:45,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:39:45,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:39:45,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:39:45,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:39:45,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:39:45,761 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:39:45,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:39:45,761 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:39:45,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:39:45,761 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:39:45,761 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:39:46,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:39:46,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:39:46,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:39:46,030 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:39:46,031 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:39:46,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2023-08-31 20:39:46,964 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:39:47,149 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:39:47,149 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2023-08-31 20:39:47,160 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de941a157/fd742eb770b44fa1b305732313dfee4c/FLAG98af57af1 [2023-08-31 20:39:47,514 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de941a157/fd742eb770b44fa1b305732313dfee4c [2023-08-31 20:39:47,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:39:47,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:39:47,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:39:47,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:39:47,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:39:47,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:39:47" (1/1) ... [2023-08-31 20:39:47,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ead864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47, skipping insertion in model container [2023-08-31 20:39:47,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:39:47" (1/1) ... [2023-08-31 20:39:47,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:39:47,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:39:47,651 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2023-08-31 20:39:47,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:39:47,786 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:39:47,797 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2023-08-31 20:39:47,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:39:47,862 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:39:47,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47 WrapperNode [2023-08-31 20:39:47,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:39:47,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:39:47,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:39:47,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:39:47,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47" (1/1) ... [2023-08-31 20:39:47,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47" (1/1) ... [2023-08-31 20:39:47,906 INFO L138 Inliner]: procedures = 162, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2023-08-31 20:39:47,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:39:47,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:39:47,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:39:47,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:39:47,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47" (1/1) ... [2023-08-31 20:39:47,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47" (1/1) ... [2023-08-31 20:39:47,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47" (1/1) ... [2023-08-31 20:39:47,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47" (1/1) ... [2023-08-31 20:39:47,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47" (1/1) ... [2023-08-31 20:39:47,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47" (1/1) ... [2023-08-31 20:39:47,937 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47" (1/1) ... [2023-08-31 20:39:47,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47" (1/1) ... [2023-08-31 20:39:47,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:39:47,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:39:47,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:39:47,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:39:47,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47" (1/1) ... [2023-08-31 20:39:47,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:39:47,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:39:47,976 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) [2023-08-31 20:39:47,982 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 [2023-08-31 20:39:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:39:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:39:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:39:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:39:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:39:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:39:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:39:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 20:39:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:39:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:39:48,005 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 20:39:48,136 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:39:48,137 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:39:48,278 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:39:48,285 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:39:48,285 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 20:39:48,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:39:48 BoogieIcfgContainer [2023-08-31 20:39:48,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:39:48,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:39:48,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:39:48,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:39:48,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:39:47" (1/3) ... [2023-08-31 20:39:48,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efb09de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:39:48, skipping insertion in model container [2023-08-31 20:39:48,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:47" (2/3) ... [2023-08-31 20:39:48,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efb09de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:39:48, skipping insertion in model container [2023-08-31 20:39:48,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:39:48" (3/3) ... [2023-08-31 20:39:48,291 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2023-08-31 20:39:48,296 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:39:48,301 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:39:48,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-31 20:39:48,301 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:39:48,331 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 20:39:48,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 85 transitions, 175 flow [2023-08-31 20:39:48,385 INFO L130 PetriNetUnfolder]: 1/84 cut-off events. [2023-08-31 20:39:48,386 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:39:48,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 1/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-08-31 20:39:48,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 85 transitions, 175 flow [2023-08-31 20:39:48,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 84 transitions, 171 flow [2023-08-31 20:39:48,397 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:39:48,404 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 84 transitions, 171 flow [2023-08-31 20:39:48,406 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 84 transitions, 171 flow [2023-08-31 20:39:48,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 84 transitions, 171 flow [2023-08-31 20:39:48,423 INFO L130 PetriNetUnfolder]: 1/84 cut-off events. [2023-08-31 20:39:48,429 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:39:48,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 1/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-08-31 20:39:48,431 INFO L119 LiptonReduction]: Number of co-enabled transitions 1080 [2023-08-31 20:39:50,575 INFO L134 LiptonReduction]: Checked pairs total: 4100 [2023-08-31 20:39:50,575 INFO L136 LiptonReduction]: Total number of compositions: 66 [2023-08-31 20:39:50,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:39:50,587 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;@d9a356f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:39:50,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-31 20:39:50,591 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-08-31 20:39:50,591 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:39:50,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:50,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:39:50,592 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-31 20:39:50,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:50,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1162483235, now seen corresponding path program 1 times [2023-08-31 20:39:50,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:50,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019578324] [2023-08-31 20:39:50,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:50,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:50,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:39:50,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:50,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019578324] [2023-08-31 20:39:50,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019578324] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:50,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:50,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:39:50,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49280687] [2023-08-31 20:39:50,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:50,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:39:50,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:50,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:39:50,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:39:50,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 151 [2023-08-31 20:39:50,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:39:50,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:50,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 151 [2023-08-31 20:39:50,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:50,819 INFO L130 PetriNetUnfolder]: 54/166 cut-off events. [2023-08-31 20:39:50,819 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:39:50,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 166 events. 54/166 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 659 event pairs, 45 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 288. Up to 115 conditions per place. [2023-08-31 20:39:50,822 INFO L137 encePairwiseOnDemand]: 146/151 looper letters, 21 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2023-08-31 20:39:50,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 113 flow [2023-08-31 20:39:50,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:39:50,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:39:50,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2023-08-31 20:39:50,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5474613686534217 [2023-08-31 20:39:50,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2023-08-31 20:39:50,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2023-08-31 20:39:50,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:50,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2023-08-31 20:39:50,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2023-08-31 20:39:50,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2023-08-31 20:39:50,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2023-08-31 20:39:50,844 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 53 flow. Second operand 3 states and 248 transitions. [2023-08-31 20:39:50,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 113 flow [2023-08-31 20:39:50,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:39:50,847 INFO L231 Difference]: Finished difference. Result has 30 places, 26 transitions, 69 flow [2023-08-31 20:39:50,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=30, PETRI_TRANSITIONS=26} [2023-08-31 20:39:50,850 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2023-08-31 20:39:50,850 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 69 flow [2023-08-31 20:39:50,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:39:50,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:50,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:39:50,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:39:50,851 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-31 20:39:50,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:50,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1154109851, now seen corresponding path program 1 times [2023-08-31 20:39:50,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:50,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508812742] [2023-08-31 20:39:50,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:50,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:50,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:39:50,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:50,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508812742] [2023-08-31 20:39:50,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508812742] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:50,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:50,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:39:50,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162004036] [2023-08-31 20:39:50,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:50,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:39:50,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:50,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:39:50,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:39:50,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 151 [2023-08-31 20:39:50,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2023-08-31 20:39:50,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:50,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 151 [2023-08-31 20:39:50,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:50,958 INFO L130 PetriNetUnfolder]: 58/172 cut-off events. [2023-08-31 20:39:50,959 INFO L131 PetriNetUnfolder]: For 24/26 co-relation queries the response was YES. [2023-08-31 20:39:50,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 172 events. 58/172 cut-off events. For 24/26 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 686 event pairs, 42 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 341. Up to 121 conditions per place. [2023-08-31 20:39:50,960 INFO L137 encePairwiseOnDemand]: 146/151 looper letters, 22 selfloop transitions, 5 changer transitions 1/35 dead transitions. [2023-08-31 20:39:50,960 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 35 transitions, 148 flow [2023-08-31 20:39:50,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:39:50,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:39:50,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2023-08-31 20:39:50,961 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5562913907284768 [2023-08-31 20:39:50,962 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 252 transitions. [2023-08-31 20:39:50,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 252 transitions. [2023-08-31 20:39:50,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:50,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 252 transitions. [2023-08-31 20:39:50,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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) [2023-08-31 20:39:50,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2023-08-31 20:39:50,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2023-08-31 20:39:50,964 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 69 flow. Second operand 3 states and 252 transitions. [2023-08-31 20:39:50,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 35 transitions, 148 flow [2023-08-31 20:39:50,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:39:50,965 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 97 flow [2023-08-31 20:39:50,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2023-08-31 20:39:50,966 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 4 predicate places. [2023-08-31 20:39:50,966 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 97 flow [2023-08-31 20:39:50,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2023-08-31 20:39:50,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:50,967 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:39:50,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 20:39:50,967 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-31 20:39:50,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:50,967 INFO L85 PathProgramCache]: Analyzing trace with hash 716334169, now seen corresponding path program 1 times [2023-08-31 20:39:50,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:50,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717607572] [2023-08-31 20:39:50,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:50,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:51,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:39:51,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:51,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717607572] [2023-08-31 20:39:51,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717607572] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:51,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:51,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 20:39:51,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258855765] [2023-08-31 20:39:51,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:51,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:39:51,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:51,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:39:51,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:39:51,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 151 [2023-08-31 20:39:51,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2023-08-31 20:39:51,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:51,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 151 [2023-08-31 20:39:51,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:51,144 INFO L130 PetriNetUnfolder]: 37/123 cut-off events. [2023-08-31 20:39:51,144 INFO L131 PetriNetUnfolder]: For 28/29 co-relation queries the response was YES. [2023-08-31 20:39:51,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 123 events. 37/123 cut-off events. For 28/29 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 443 event pairs, 10 based on Foata normal form. 10/126 useless extension candidates. Maximal degree in co-relation 271. Up to 55 conditions per place. [2023-08-31 20:39:51,147 INFO L137 encePairwiseOnDemand]: 145/151 looper letters, 21 selfloop transitions, 6 changer transitions 1/34 dead transitions. [2023-08-31 20:39:51,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 155 flow [2023-08-31 20:39:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:39:51,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:39:51,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-31 20:39:51,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5607064017660044 [2023-08-31 20:39:51,150 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-31 20:39:51,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-31 20:39:51,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:51,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-31 20:39:51,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2023-08-31 20:39:51,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2023-08-31 20:39:51,154 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2023-08-31 20:39:51,154 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 97 flow. Second operand 3 states and 254 transitions. [2023-08-31 20:39:51,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 155 flow [2023-08-31 20:39:51,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 34 transitions, 138 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-31 20:39:51,157 INFO L231 Difference]: Finished difference. Result has 31 places, 28 transitions, 94 flow [2023-08-31 20:39:51,157 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=31, PETRI_TRANSITIONS=28} [2023-08-31 20:39:51,158 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 3 predicate places. [2023-08-31 20:39:51,158 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 28 transitions, 94 flow [2023-08-31 20:39:51,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2023-08-31 20:39:51,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:51,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:39:51,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:39:51,159 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-31 20:39:51,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:51,159 INFO L85 PathProgramCache]: Analyzing trace with hash -848586975, now seen corresponding path program 1 times [2023-08-31 20:39:51,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:51,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079748653] [2023-08-31 20:39:51,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:51,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:51,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:39:51,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:51,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079748653] [2023-08-31 20:39:51,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079748653] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:51,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:51,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:39:51,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390854730] [2023-08-31 20:39:51,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:51,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:39:51,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:51,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:39:51,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:39:51,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 151 [2023-08-31 20:39:51,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2023-08-31 20:39:51,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:51,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 151 [2023-08-31 20:39:51,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:51,274 INFO L130 PetriNetUnfolder]: 47/151 cut-off events. [2023-08-31 20:39:51,274 INFO L131 PetriNetUnfolder]: For 39/46 co-relation queries the response was YES. [2023-08-31 20:39:51,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 151 events. 47/151 cut-off events. For 39/46 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 589 event pairs, 16 based on Foata normal form. 3/147 useless extension candidates. Maximal degree in co-relation 367. Up to 86 conditions per place. [2023-08-31 20:39:51,277 INFO L137 encePairwiseOnDemand]: 147/151 looper letters, 19 selfloop transitions, 3 changer transitions 9/36 dead transitions. [2023-08-31 20:39:51,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 36 transitions, 177 flow [2023-08-31 20:39:51,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:39:51,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:39:51,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-08-31 20:39:51,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5695364238410596 [2023-08-31 20:39:51,278 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-08-31 20:39:51,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-08-31 20:39:51,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:51,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-08-31 20:39:51,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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) [2023-08-31 20:39:51,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2023-08-31 20:39:51,284 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2023-08-31 20:39:51,284 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 94 flow. Second operand 3 states and 258 transitions. [2023-08-31 20:39:51,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 36 transitions, 177 flow [2023-08-31 20:39:51,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:39:51,285 INFO L231 Difference]: Finished difference. Result has 34 places, 25 transitions, 94 flow [2023-08-31 20:39:51,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2023-08-31 20:39:51,287 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 6 predicate places. [2023-08-31 20:39:51,287 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 94 flow [2023-08-31 20:39:51,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2023-08-31 20:39:51,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:51,288 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:39:51,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:39:51,288 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-31 20:39:51,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:51,290 INFO L85 PathProgramCache]: Analyzing trace with hash 415358472, now seen corresponding path program 1 times [2023-08-31 20:39:51,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:51,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946956836] [2023-08-31 20:39:51,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:51,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:51,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:39:51,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:51,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946956836] [2023-08-31 20:39:51,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946956836] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:51,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:51,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 20:39:51,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397984642] [2023-08-31 20:39:51,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:51,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:39:51,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:51,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:39:51,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:39:51,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 151 [2023-08-31 20:39:51,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2023-08-31 20:39:51,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:51,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 151 [2023-08-31 20:39:51,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:51,420 INFO L130 PetriNetUnfolder]: 9/74 cut-off events. [2023-08-31 20:39:51,420 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-08-31 20:39:51,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 74 events. 9/74 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 197 event pairs, 3 based on Foata normal form. 7/81 useless extension candidates. Maximal degree in co-relation 184. Up to 43 conditions per place. [2023-08-31 20:39:51,420 INFO L137 encePairwiseOnDemand]: 146/151 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2023-08-31 20:39:51,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 130 flow [2023-08-31 20:39:51,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:39:51,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:39:51,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2023-08-31 20:39:51,422 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5518763796909493 [2023-08-31 20:39:51,422 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2023-08-31 20:39:51,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2023-08-31 20:39:51,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:51,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2023-08-31 20:39:51,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2023-08-31 20:39:51,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2023-08-31 20:39:51,424 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2023-08-31 20:39:51,424 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 94 flow. Second operand 3 states and 250 transitions. [2023-08-31 20:39:51,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 130 flow [2023-08-31 20:39:51,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 25 transitions, 112 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-31 20:39:51,425 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-08-31 20:39:51,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-08-31 20:39:51,428 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 0 predicate places. [2023-08-31 20:39:51,428 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-08-31 20:39:51,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2023-08-31 20:39:51,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2023-08-31 20:39:51,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2023-08-31 20:39:51,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-31 20:39:51,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2023-08-31 20:39:51,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2023-08-31 20:39:51,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 20:39:51,431 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-31 20:39:51,434 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 20:39:51,434 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 20:39:51,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 08:39:51 BasicIcfg [2023-08-31 20:39:51,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 20:39:51,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 20:39:51,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 20:39:51,438 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 20:39:51,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:39:48" (3/4) ... [2023-08-31 20:39:51,439 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 20:39:51,443 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 20:39:51,445 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-08-31 20:39:51,445 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 20:39:51,445 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 20:39:51,445 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 20:39:51,464 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 20:39:51,464 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 20:39:51,465 INFO L158 Benchmark]: Toolchain (without parser) took 3946.58ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 70.9MB in the beginning and 57.8MB in the end (delta: 13.0MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2023-08-31 20:39:51,465 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 65.0MB. Free memory is still 43.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:39:51,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.30ms. Allocated memory is still 94.4MB. Free memory was 70.6MB in the beginning and 51.5MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-31 20:39:51,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.25ms. Allocated memory is still 94.4MB. Free memory was 51.5MB in the beginning and 49.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:39:51,465 INFO L158 Benchmark]: Boogie Preprocessor took 39.80ms. Allocated memory is still 94.4MB. Free memory was 49.4MB in the beginning and 47.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:39:51,466 INFO L158 Benchmark]: RCFGBuilder took 339.12ms. Allocated memory is still 94.4MB. Free memory was 47.9MB in the beginning and 62.1MB in the end (delta: -14.2MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-08-31 20:39:51,466 INFO L158 Benchmark]: TraceAbstraction took 3150.00ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 61.3MB in the beginning and 61.0MB in the end (delta: 341.2kB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-08-31 20:39:51,466 INFO L158 Benchmark]: Witness Printer took 26.83ms. Allocated memory is still 113.2MB. Free memory was 61.0MB in the beginning and 57.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 20:39:51,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 65.0MB. Free memory is still 43.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.30ms. Allocated memory is still 94.4MB. Free memory was 70.6MB in the beginning and 51.5MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.25ms. Allocated memory is still 94.4MB. Free memory was 51.5MB in the beginning and 49.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.80ms. Allocated memory is still 94.4MB. Free memory was 49.4MB in the beginning and 47.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 339.12ms. Allocated memory is still 94.4MB. Free memory was 47.9MB in the beginning and 62.1MB in the end (delta: -14.2MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3150.00ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 61.3MB in the beginning and 61.0MB in the end (delta: 341.2kB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Witness Printer took 26.83ms. Allocated memory is still 113.2MB. Free memory was 61.0MB in the beginning and 57.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 87 PlacesBefore, 28 PlacesAfterwards, 84 TransitionsBefore, 25 TransitionsAfterwards, 1080 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 66 TotalNumberOfCompositions, 4100 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1696, independent: 1430, independent conditional: 0, independent unconditional: 1430, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 601, independent: 556, independent conditional: 0, independent unconditional: 556, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1696, independent: 874, independent conditional: 0, independent unconditional: 874, dependent: 221, dependent conditional: 0, dependent unconditional: 221, unknown: 601, unknown conditional: 0, unknown unconditional: 601] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 703]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: 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 3 procedures, 105 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 152 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 272 IncrementalHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 41 mSDtfsCounter, 272 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=2, InterpolantAutomatonStates: 15, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 76 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 20:39:51,479 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