./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_18-glob_guards.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/04-mutex_18-glob_guards.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 a0a52117517f5f1ef7fb9c68fe8f56609e6cd05991ff2a7b47c2b82f7b5210a3 --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 19:57:28,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:57:28,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:57:28,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:57:28,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:57:28,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:57:28,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:57:28,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:57:28,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:57:28,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:57:28,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:57:28,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:57:28,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:57:28,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:57:28,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:57:28,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:57:28,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:57:28,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:57:28,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:57:28,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:57:28,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:57:28,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:57:28,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:57:28,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:57:28,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:57:28,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:57:28,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:57:28,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:57:28,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:57:28,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:57:28,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:57:28,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:57:28,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:57:28,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:57:28,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:57:28,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:57:28,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:57:28,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:57:28,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:57:28,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:57:28,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:57:28,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:57:28,307 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:57:28,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:57:28,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:57:28,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:57:28,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:57:28,309 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:57:28,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:57:28,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:57:28,311 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:57:28,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:57:28,311 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:57:28,312 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:57:28,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:57:28,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:57:28,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:57:28,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:57:28,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:57:28,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:57:28,313 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:57:28,313 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:57:28,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:57:28,313 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:57:28,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:57:28,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:57:28,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:57:28,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:57:28,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:57:28,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:57:28,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:57:28,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:57:28,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:57:28,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:57:28,315 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:57:28,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:57:28,316 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:57:28,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:57:28,316 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:57:28,316 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0a52117517f5f1ef7fb9c68fe8f56609e6cd05991ff2a7b47c2b82f7b5210a3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:57:28,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:57:28,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:57:28,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:57:28,567 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:57:28,567 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:57:28,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_18-glob_guards.i [2023-08-31 19:57:29,549 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:57:29,750 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:57:29,750 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_18-glob_guards.i [2023-08-31 19:57:29,763 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/724874779/bb41f4de37b146539fe09f04b20a5685/FLAGdbe045b5a [2023-08-31 19:57:29,773 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/724874779/bb41f4de37b146539fe09f04b20a5685 [2023-08-31 19:57:29,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:57:29,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:57:29,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:57:29,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:57:29,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:57:29,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:57:29" (1/1) ... [2023-08-31 19:57:29,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b6cf5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:29, skipping insertion in model container [2023-08-31 19:57:29,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:57:29" (1/1) ... [2023-08-31 19:57:29,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:57:29,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:57:30,087 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:57:30,097 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:57:30,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:57:30,180 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:57:30,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:30 WrapperNode [2023-08-31 19:57:30,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:57:30,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:57:30,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:57:30,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:57:30,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:30" (1/1) ... [2023-08-31 19:57:30,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:30" (1/1) ... [2023-08-31 19:57:30,228 INFO L138 Inliner]: procedures = 260, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-08-31 19:57:30,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:57:30,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:57:30,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:57:30,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:57:30,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:30" (1/1) ... [2023-08-31 19:57:30,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:30" (1/1) ... [2023-08-31 19:57:30,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:30" (1/1) ... [2023-08-31 19:57:30,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:30" (1/1) ... [2023-08-31 19:57:30,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:30" (1/1) ... [2023-08-31 19:57:30,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:30" (1/1) ... [2023-08-31 19:57:30,263 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:30" (1/1) ... [2023-08-31 19:57:30,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:30" (1/1) ... [2023-08-31 19:57:30,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:57:30,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:57:30,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:57:30,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:57:30,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:30" (1/1) ... [2023-08-31 19:57:30,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:57:30,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:57:30,293 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 19:57:30,317 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 19:57:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:57:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:57:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:57:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:57:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:57:30,321 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:57:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:57:30,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:57:30,322 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 19:57:30,402 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:57:30,403 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:57:30,505 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:57:30,510 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:57:30,510 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:57:30,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:30 BoogieIcfgContainer [2023-08-31 19:57:30,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:57:30,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:57:30,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:57:30,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:57:30,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:57:29" (1/3) ... [2023-08-31 19:57:30,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6d1b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:57:30, skipping insertion in model container [2023-08-31 19:57:30,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:30" (2/3) ... [2023-08-31 19:57:30,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6d1b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:57:30, skipping insertion in model container [2023-08-31 19:57:30,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:30" (3/3) ... [2023-08-31 19:57:30,517 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_18-glob_guards.i [2023-08-31 19:57:30,522 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:57:30,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:57:30,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-31 19:57:30,528 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:57:30,586 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 19:57:30,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 70 transitions, 148 flow [2023-08-31 19:57:30,657 INFO L130 PetriNetUnfolder]: 2/69 cut-off events. [2023-08-31 19:57:30,657 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:57:30,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 69 events. 2/69 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-08-31 19:57:30,661 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 70 transitions, 148 flow [2023-08-31 19:57:30,664 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 62 transitions, 127 flow [2023-08-31 19:57:30,667 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:57:30,686 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 62 transitions, 127 flow [2023-08-31 19:57:30,688 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 62 transitions, 127 flow [2023-08-31 19:57:30,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 127 flow [2023-08-31 19:57:30,704 INFO L130 PetriNetUnfolder]: 2/62 cut-off events. [2023-08-31 19:57:30,709 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:30,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 2/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-08-31 19:57:30,710 INFO L119 LiptonReduction]: Number of co-enabled transitions 270 [2023-08-31 19:57:32,327 INFO L134 LiptonReduction]: Checked pairs total: 660 [2023-08-31 19:57:32,327 INFO L136 LiptonReduction]: Total number of compositions: 65 [2023-08-31 19:57:32,336 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:57:32,340 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;@3c7ee058, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:57:32,340 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-31 19:57:32,341 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 19:57:32,341 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:32,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:32,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 19:57:32,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-31 19:57:32,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:32,345 INFO L85 PathProgramCache]: Analyzing trace with hash 253, now seen corresponding path program 1 times [2023-08-31 19:57:32,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:32,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69656298] [2023-08-31 19:57:32,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:32,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:32,412 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 19:57:32,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:32,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69656298] [2023-08-31 19:57:32,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69656298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:32,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:32,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 19:57:32,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678108359] [2023-08-31 19:57:32,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:32,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 19:57:32,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:32,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 19:57:32,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 19:57:32,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 135 [2023-08-31 19:57:32,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 23 flow. Second operand has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 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 19:57:32,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:32,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 135 [2023-08-31 19:57:32,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:32,454 INFO L130 PetriNetUnfolder]: 4/17 cut-off events. [2023-08-31 19:57:32,455 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:32,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 17 events. 4/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 34 event pairs, 4 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 27. Up to 15 conditions per place. [2023-08-31 19:57:32,456 INFO L137 encePairwiseOnDemand]: 133/135 looper letters, 6 selfloop transitions, 0 changer transitions 0/8 dead transitions. [2023-08-31 19:57:32,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 31 flow [2023-08-31 19:57:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 19:57:32,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 19:57:32,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 144 transitions. [2023-08-31 19:57:32,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2023-08-31 19:57:32,464 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 144 transitions. [2023-08-31 19:57:32,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 144 transitions. [2023-08-31 19:57:32,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:32,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 144 transitions. [2023-08-31 19:57:32,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 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 19:57:32,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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 19:57:32,470 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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 19:57:32,471 INFO L175 Difference]: Start difference. First operand has 14 places, 10 transitions, 23 flow. Second operand 2 states and 144 transitions. [2023-08-31 19:57:32,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 31 flow [2023-08-31 19:57:32,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 8 transitions, 30 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:57:32,513 INFO L231 Difference]: Finished difference. Result has 12 places, 8 transitions, 18 flow [2023-08-31 19:57:32,514 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=18, PETRI_PLACES=12, PETRI_TRANSITIONS=8} [2023-08-31 19:57:32,516 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -2 predicate places. [2023-08-31 19:57:32,517 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 8 transitions, 18 flow [2023-08-31 19:57:32,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 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 19:57:32,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:32,517 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-31 19:57:32,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:57:32,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-31 19:57:32,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:32,518 INFO L85 PathProgramCache]: Analyzing trace with hash 7754875, now seen corresponding path program 1 times [2023-08-31 19:57:32,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:32,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440166430] [2023-08-31 19:57:32,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:32,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:32,581 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 19:57:32,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:32,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440166430] [2023-08-31 19:57:32,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440166430] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:32,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:32,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:57:32,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392146648] [2023-08-31 19:57:32,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:32,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:57:32,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:32,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:57:32,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:57:32,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 135 [2023-08-31 19:57:32,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 8 transitions, 18 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 19:57:32,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:32,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 135 [2023-08-31 19:57:32,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:32,600 INFO L130 PetriNetUnfolder]: 4/14 cut-off events. [2023-08-31 19:57:32,600 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:32,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 14 events. 4/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 2 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 30. Up to 12 conditions per place. [2023-08-31 19:57:32,600 INFO L137 encePairwiseOnDemand]: 131/135 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2023-08-31 19:57:32,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 8 transitions, 34 flow [2023-08-31 19:57:32,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:57:32,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:57:32,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2023-08-31 19:57:32,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4765432098765432 [2023-08-31 19:57:32,602 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 193 transitions. [2023-08-31 19:57:32,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 193 transitions. [2023-08-31 19:57:32,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:32,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 193 transitions. [2023-08-31 19:57:32,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 19:57:32,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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 19:57:32,604 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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 19:57:32,604 INFO L175 Difference]: Start difference. First operand has 12 places, 8 transitions, 18 flow. Second operand 3 states and 193 transitions. [2023-08-31 19:57:32,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 8 transitions, 34 flow [2023-08-31 19:57:32,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:57:32,605 INFO L231 Difference]: Finished difference. Result has 12 places, 0 transitions, 0 flow [2023-08-31 19:57:32,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=12, PETRI_TRANSITIONS=0} [2023-08-31 19:57:32,605 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -2 predicate places. [2023-08-31 19:57:32,605 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 0 transitions, 0 flow [2023-08-31 19:57:32,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 19:57:32,607 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2023-08-31 19:57:32,607 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2023-08-31 19:57:32,607 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2023-08-31 19:57:32,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-08-31 19:57:32,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-08-31 19:57:32,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-08-31 19:57:32,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:57:32,608 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-31 19:57:32,611 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:57:32,611 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:57:32,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:57:32 BasicIcfg [2023-08-31 19:57:32,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:57:32,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:57:32,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:57:32,614 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:57:32,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:30" (3/4) ... [2023-08-31 19:57:32,615 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 19:57:32,619 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 19:57:32,621 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-31 19:57:32,621 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 19:57:32,621 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 19:57:32,648 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 19:57:32,648 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:57:32,649 INFO L158 Benchmark]: Toolchain (without parser) took 2873.24ms. Allocated memory was 65.0MB in the beginning and 98.6MB in the end (delta: 33.6MB). Free memory was 28.6MB in the beginning and 60.0MB in the end (delta: -31.4MB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2023-08-31 19:57:32,649 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:57:32,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.73ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 28.4MB in the beginning and 37.3MB in the end (delta: -8.9MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2023-08-31 19:57:32,650 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.61ms. Allocated memory is still 79.7MB. Free memory was 37.3MB in the beginning and 35.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:57:32,650 INFO L158 Benchmark]: Boogie Preprocessor took 42.01ms. Allocated memory is still 79.7MB. Free memory was 35.2MB in the beginning and 57.8MB in the end (delta: -22.7MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2023-08-31 19:57:32,650 INFO L158 Benchmark]: RCFGBuilder took 240.74ms. Allocated memory is still 79.7MB. Free memory was 57.8MB in the beginning and 45.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 19:57:32,650 INFO L158 Benchmark]: TraceAbstraction took 2099.92ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 44.6MB in the beginning and 62.6MB in the end (delta: -18.0MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2023-08-31 19:57:32,650 INFO L158 Benchmark]: Witness Printer took 34.87ms. Allocated memory is still 98.6MB. Free memory was 62.6MB in the beginning and 60.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:57:32,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.73ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 28.4MB in the beginning and 37.3MB in the end (delta: -8.9MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.61ms. Allocated memory is still 79.7MB. Free memory was 37.3MB in the beginning and 35.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.01ms. Allocated memory is still 79.7MB. Free memory was 35.2MB in the beginning and 57.8MB in the end (delta: -22.7MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * RCFGBuilder took 240.74ms. Allocated memory is still 79.7MB. Free memory was 57.8MB in the beginning and 45.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2099.92ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 44.6MB in the beginning and 62.6MB in the end (delta: -18.0MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. * Witness Printer took 34.87ms. Allocated memory is still 98.6MB. Free memory was 62.6MB in the beginning and 60.0MB in the end (delta: 2.6MB). 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: 1.6s, 64 PlacesBefore, 14 PlacesAfterwards, 62 TransitionsBefore, 10 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 65 TotalNumberOfCompositions, 660 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 358, independent: 278, independent conditional: 0, independent unconditional: 278, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 191, independent: 171, independent conditional: 0, independent unconditional: 171, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 358, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 191, unknown conditional: 0, unknown unconditional: 191] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 929]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 933]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 922]: 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, 79 locations, 6 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: 2.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 19:57:32,672 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