./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/ldv-races/race-1_3b-join.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/ldv-races/race-1_3b-join.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 c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b --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 19:00:58,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:00:58,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:00:58,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:00:58,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:00:58,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:00:58,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:00:58,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:00:58,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:00:58,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:00:58,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:00:58,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:00:58,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:00:58,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:00:58,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:00:58,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:00:58,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:00:58,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:00:58,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:00:58,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:00:58,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:00:58,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:00:58,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:00:58,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:00:58,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:00:58,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:00:58,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:00:58,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:00:58,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:00:58,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:00:58,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:00:58,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:00:58,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:00:58,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:00:58,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:00:58,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:00:58,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:00:58,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:00:58,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:00:58,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:00:58,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:00:58,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:00:58,390 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:00:58,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:00:58,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:00:58,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:00:58,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:00:58,392 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:00:58,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:00:58,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:00:58,393 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:00:58,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:00:58,394 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:00:58,394 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:00:58,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:00:58,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:00:58,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:00:58,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:00:58,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:00:58,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:00:58,396 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:00:58,396 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:00:58,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:00:58,396 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:00:58,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:00:58,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:00:58,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:00:58,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:00:58,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:00:58,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:00:58,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:00:58,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:00:58,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:00:58,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:00:58,398 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:00:58,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:00:58,399 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:00:58,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:00:58,399 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:00:58,399 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:00:58,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:00:58,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:00:58,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:00:58,758 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:00:58,758 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:00:58,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3b-join.i [2023-08-31 19:00:59,840 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:01:00,137 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:01:00,138 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3b-join.i [2023-08-31 19:01:00,154 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2077c7f8/259159a78780414ba6f81520be3e2ec8/FLAGfe6200eea [2023-08-31 19:01:00,165 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2077c7f8/259159a78780414ba6f81520be3e2ec8 [2023-08-31 19:01:00,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:01:00,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:01:00,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:01:00,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:01:00,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:01:00,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:01:00" (1/1) ... [2023-08-31 19:01:00,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a55a329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:00, skipping insertion in model container [2023-08-31 19:01:00,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:01:00" (1/1) ... [2023-08-31 19:01:00,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:01:00,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:01:00,889 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3b-join.i[76069,76082] [2023-08-31 19:01:00,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:01:00,927 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:01:00,969 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3b-join.i[76069,76082] [2023-08-31 19:01:00,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:01:01,127 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:01:01,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:01 WrapperNode [2023-08-31 19:01:01,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:01:01,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:01:01,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:01:01,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:01:01,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:01" (1/1) ... [2023-08-31 19:01:01,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:01" (1/1) ... [2023-08-31 19:01:01,191 INFO L138 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2023-08-31 19:01:01,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:01:01,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:01:01,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:01:01,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:01:01,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:01" (1/1) ... [2023-08-31 19:01:01,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:01" (1/1) ... [2023-08-31 19:01:01,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:01" (1/1) ... [2023-08-31 19:01:01,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:01" (1/1) ... [2023-08-31 19:01:01,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:01" (1/1) ... [2023-08-31 19:01:01,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:01" (1/1) ... [2023-08-31 19:01:01,232 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:01" (1/1) ... [2023-08-31 19:01:01,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:01" (1/1) ... [2023-08-31 19:01:01,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:01:01,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:01:01,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:01:01,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:01:01,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:01" (1/1) ... [2023-08-31 19:01:01,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:01:01,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:01:01,277 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 19:01:01,285 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 19:01:01,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:01:01,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:01:01,308 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:01:01,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:01:01,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 19:01:01,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:01:01,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:01:01,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:01:01,308 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 19:01:01,309 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 19:01:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:01:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:01:01,310 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 19:01:01,658 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:01:01,659 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:01:01,820 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:01:01,827 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:01:01,827 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:01:01,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:01:01 BoogieIcfgContainer [2023-08-31 19:01:01,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:01:01,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:01:01,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:01:01,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:01:01,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:01:00" (1/3) ... [2023-08-31 19:01:01,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635655a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:01:01, skipping insertion in model container [2023-08-31 19:01:01,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:01:01" (2/3) ... [2023-08-31 19:01:01,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635655a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:01:01, skipping insertion in model container [2023-08-31 19:01:01,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:01:01" (3/3) ... [2023-08-31 19:01:01,838 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3b-join.i [2023-08-31 19:01:01,844 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:01:01,850 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:01:01,850 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-31 19:01:01,850 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:01:01,920 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 19:01:01,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 141 transitions, 290 flow [2023-08-31 19:01:02,035 INFO L130 PetriNetUnfolder]: 6/175 cut-off events. [2023-08-31 19:01:02,036 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:01:02,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 175 events. 6/175 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 243 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 100. Up to 4 conditions per place. [2023-08-31 19:01:02,040 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 141 transitions, 290 flow [2023-08-31 19:01:02,048 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 128 transitions, 262 flow [2023-08-31 19:01:02,052 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:01:02,070 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 128 transitions, 262 flow [2023-08-31 19:01:02,074 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 128 transitions, 262 flow [2023-08-31 19:01:02,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 128 transitions, 262 flow [2023-08-31 19:01:02,110 INFO L130 PetriNetUnfolder]: 4/163 cut-off events. [2023-08-31 19:01:02,112 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:01:02,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 163 events. 4/163 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 237 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 100. Up to 4 conditions per place. [2023-08-31 19:01:02,115 INFO L119 LiptonReduction]: Number of co-enabled transitions 912 [2023-08-31 19:01:05,449 INFO L134 LiptonReduction]: Checked pairs total: 2094 [2023-08-31 19:01:05,449 INFO L136 LiptonReduction]: Total number of compositions: 136 [2023-08-31 19:01:05,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:01:05,466 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;@47d298f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:01:05,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-31 19:01:05,468 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 19:01:05,468 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:01:05,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:01:05,469 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 19:01:05,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-31 19:01:05,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:01:05,473 INFO L85 PathProgramCache]: Analyzing trace with hash 488, now seen corresponding path program 1 times [2023-08-31 19:01:05,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:01:05,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116655860] [2023-08-31 19:01:05,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:01:05,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:01:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:01:05,645 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 19:01:05,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:01:05,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116655860] [2023-08-31 19:01:05,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116655860] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:01:05,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:01:05,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 19:01:05,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208513324] [2023-08-31 19:01:05,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:01:05,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 19:01:05,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:01:05,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 19:01:05,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 19:01:05,679 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 277 [2023-08-31 19:01:05,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 60 flow. Second operand has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 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 19:01:05,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:01:05,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 277 [2023-08-31 19:01:05,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:01:05,719 INFO L130 PetriNetUnfolder]: 15/66 cut-off events. [2023-08-31 19:01:05,720 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:01:05,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 66 events. 15/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 220 event pairs, 15 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 89. Up to 47 conditions per place. [2023-08-31 19:01:05,722 INFO L137 encePairwiseOnDemand]: 270/277 looper letters, 11 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2023-08-31 19:01:05,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 20 transitions, 70 flow [2023-08-31 19:01:05,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 19:01:05,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 19:01:05,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 281 transitions. [2023-08-31 19:01:05,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5072202166064982 [2023-08-31 19:01:05,740 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 281 transitions. [2023-08-31 19:01:05,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 281 transitions. [2023-08-31 19:01:05,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:01:05,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 281 transitions. [2023-08-31 19:01:05,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 140.5) internal successors, (281), 2 states have internal predecessors, (281), 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 19:01:05,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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 19:01:05,754 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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 19:01:05,756 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 60 flow. Second operand 2 states and 281 transitions. [2023-08-31 19:01:05,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 20 transitions, 70 flow [2023-08-31 19:01:05,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 20 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:01:05,760 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 39 flow [2023-08-31 19:01:05,761 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=39, PETRI_PLACES=22, PETRI_TRANSITIONS=19} [2023-08-31 19:01:05,764 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -7 predicate places. [2023-08-31 19:01:05,764 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 39 flow [2023-08-31 19:01:05,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 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 19:01:05,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:01:05,765 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-31 19:01:05,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:01:05,767 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-31 19:01:05,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:01:05,770 INFO L85 PathProgramCache]: Analyzing trace with hash 15192368, now seen corresponding path program 1 times [2023-08-31 19:01:05,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:01:05,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210588005] [2023-08-31 19:01:05,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:01:05,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:01:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:01:05,936 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 19:01:05,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:01:05,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210588005] [2023-08-31 19:01:05,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210588005] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:01:05,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:01:05,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:01:05,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268769524] [2023-08-31 19:01:05,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:01:05,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:01:05,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:01:05,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:01:05,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:01:05,956 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 277 [2023-08-31 19:01:05,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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 19:01:05,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:01:05,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 277 [2023-08-31 19:01:05,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:01:05,996 INFO L130 PetriNetUnfolder]: 15/62 cut-off events. [2023-08-31 19:01:05,996 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:01:05,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 62 events. 15/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 186 event pairs, 15 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 105. Up to 42 conditions per place. [2023-08-31 19:01:05,997 INFO L137 encePairwiseOnDemand]: 274/277 looper letters, 10 selfloop transitions, 0 changer transitions 2/20 dead transitions. [2023-08-31 19:01:05,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 20 transitions, 65 flow [2023-08-31 19:01:05,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:01:05,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:01:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2023-08-31 19:01:05,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.470517448856799 [2023-08-31 19:01:05,999 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 391 transitions. [2023-08-31 19:01:05,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 391 transitions. [2023-08-31 19:01:06,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:01:06,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 391 transitions. [2023-08-31 19:01:06,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 19:01:06,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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 19:01:06,004 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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 19:01:06,004 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 39 flow. Second operand 3 states and 391 transitions. [2023-08-31 19:01:06,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 20 transitions, 65 flow [2023-08-31 19:01:06,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 65 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:01:06,005 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 41 flow [2023-08-31 19:01:06,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2023-08-31 19:01:06,006 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -5 predicate places. [2023-08-31 19:01:06,007 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 41 flow [2023-08-31 19:01:06,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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 19:01:06,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:01:06,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:01:06,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:01:06,008 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-31 19:01:06,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:01:06,008 INFO L85 PathProgramCache]: Analyzing trace with hash 465467150, now seen corresponding path program 1 times [2023-08-31 19:01:06,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:01:06,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242561256] [2023-08-31 19:01:06,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:01:06,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:01:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:01:06,058 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 19:01:06,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:01:06,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242561256] [2023-08-31 19:01:06,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242561256] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:01:06,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:01:06,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:01:06,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233169296] [2023-08-31 19:01:06,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:01:06,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:01:06,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:01:06,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:01:06,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:01:06,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 277 [2023-08-31 19:01:06,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:01:06,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:01:06,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 277 [2023-08-31 19:01:06,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:01:06,134 INFO L130 PetriNetUnfolder]: 22/81 cut-off events. [2023-08-31 19:01:06,135 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 19:01:06,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 81 events. 22/81 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 271 event pairs, 13 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 147. Up to 47 conditions per place. [2023-08-31 19:01:06,136 INFO L137 encePairwiseOnDemand]: 272/277 looper letters, 13 selfloop transitions, 4 changer transitions 2/25 dead transitions. [2023-08-31 19:01:06,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 97 flow [2023-08-31 19:01:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:01:06,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:01:06,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2023-08-31 19:01:06,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4500601684717208 [2023-08-31 19:01:06,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 374 transitions. [2023-08-31 19:01:06,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions. [2023-08-31 19:01:06,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:01:06,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions. [2023-08-31 19:01:06,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 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 19:01:06,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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 19:01:06,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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 19:01:06,142 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 41 flow. Second operand 3 states and 374 transitions. [2023-08-31 19:01:06,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 97 flow [2023-08-31 19:01:06,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 89 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-31 19:01:06,143 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 61 flow [2023-08-31 19:01:06,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2023-08-31 19:01:06,144 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -4 predicate places. [2023-08-31 19:01:06,144 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 61 flow [2023-08-31 19:01:06,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:01:06,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:01:06,145 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 19:01:06,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:01:06,146 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-31 19:01:06,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:01:06,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1544993531, now seen corresponding path program 1 times [2023-08-31 19:01:06,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:01:06,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800960059] [2023-08-31 19:01:06,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:01:06,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:01:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:01:06,194 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 19:01:06,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:01:06,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800960059] [2023-08-31 19:01:06,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800960059] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:01:06,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:01:06,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:01:06,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494119211] [2023-08-31 19:01:06,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:01:06,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:01:06,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:01:06,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:01:06,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:01:06,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 277 [2023-08-31 19:01:06,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 19:01:06,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:01:06,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 277 [2023-08-31 19:01:06,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:01:06,273 INFO L130 PetriNetUnfolder]: 24/80 cut-off events. [2023-08-31 19:01:06,273 INFO L131 PetriNetUnfolder]: For 18/20 co-relation queries the response was YES. [2023-08-31 19:01:06,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 80 events. 24/80 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 255 event pairs, 13 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 189. Up to 48 conditions per place. [2023-08-31 19:01:06,274 INFO L137 encePairwiseOnDemand]: 272/277 looper letters, 16 selfloop transitions, 6 changer transitions 0/27 dead transitions. [2023-08-31 19:01:06,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 27 transitions, 132 flow [2023-08-31 19:01:06,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:01:06,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:01:06,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2023-08-31 19:01:06,276 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44404332129963897 [2023-08-31 19:01:06,276 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2023-08-31 19:01:06,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2023-08-31 19:01:06,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:01:06,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2023-08-31 19:01:06,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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 19:01:06,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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 19:01:06,280 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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 19:01:06,280 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 61 flow. Second operand 3 states and 369 transitions. [2023-08-31 19:01:06,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 27 transitions, 132 flow [2023-08-31 19:01:06,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 27 transitions, 125 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:01:06,281 INFO L231 Difference]: Finished difference. Result has 27 places, 24 transitions, 105 flow [2023-08-31 19:01:06,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=27, PETRI_TRANSITIONS=24} [2023-08-31 19:01:06,282 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -2 predicate places. [2023-08-31 19:01:06,282 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 105 flow [2023-08-31 19:01:06,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 19:01:06,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:01:06,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:01:06,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:01:06,283 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-31 19:01:06,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:01:06,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1332692985, now seen corresponding path program 1 times [2023-08-31 19:01:06,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:01:06,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054667135] [2023-08-31 19:01:06,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:01:06,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:01:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:01:06,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:01:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:01:06,341 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:01:06,341 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:01:06,342 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2023-08-31 19:01:06,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-08-31 19:01:06,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-08-31 19:01:06,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-08-31 19:01:06,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-08-31 19:01:06,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-08-31 19:01:06,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-08-31 19:01:06,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-08-31 19:01:06,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-08-31 19:01:06,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-08-31 19:01:06,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-08-31 19:01:06,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-08-31 19:01:06,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:01:06,346 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-31 19:01:06,350 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:01:06,350 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:01:06,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:01:06 BasicIcfg [2023-08-31 19:01:06,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:01:06,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:01:06,372 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:01:06,372 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:01:06,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:01:01" (3/4) ... [2023-08-31 19:01:06,374 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:01:06,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:01:06,375 INFO L158 Benchmark]: Toolchain (without parser) took 6207.30ms. Allocated memory was 69.2MB in the beginning and 134.2MB in the end (delta: 65.0MB). Free memory was 43.2MB in the beginning and 91.5MB in the end (delta: -48.2MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-08-31 19:01:06,375 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 69.2MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:01:06,376 INFO L158 Benchmark]: CACSL2BoogieTranslator took 959.23ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 43.1MB in the beginning and 43.3MB in the end (delta: -217.9kB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2023-08-31 19:01:06,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.65ms. Allocated memory is still 88.1MB. Free memory was 43.3MB in the beginning and 40.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:01:06,376 INFO L158 Benchmark]: Boogie Preprocessor took 44.70ms. Allocated memory is still 88.1MB. Free memory was 40.4MB in the beginning and 37.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:01:06,377 INFO L158 Benchmark]: RCFGBuilder took 584.90ms. Allocated memory is still 88.1MB. Free memory was 61.3MB in the beginning and 40.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-31 19:01:06,377 INFO L158 Benchmark]: TraceAbstraction took 4540.15ms. Allocated memory was 88.1MB in the beginning and 134.2MB in the end (delta: 46.1MB). Free memory was 39.5MB in the beginning and 91.5MB in the end (delta: -52.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:01:06,377 INFO L158 Benchmark]: Witness Printer took 2.94ms. Allocated memory is still 134.2MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:01:06,379 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 69.2MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 959.23ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 43.1MB in the beginning and 43.3MB in the end (delta: -217.9kB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.65ms. Allocated memory is still 88.1MB. Free memory was 43.3MB in the beginning and 40.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.70ms. Allocated memory is still 88.1MB. Free memory was 40.4MB in the beginning and 37.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 584.90ms. Allocated memory is still 88.1MB. Free memory was 61.3MB in the beginning and 40.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4540.15ms. Allocated memory was 88.1MB in the beginning and 134.2MB in the end (delta: 46.1MB). Free memory was 39.5MB in the beginning and 91.5MB in the end (delta: -52.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.94ms. Allocated memory is still 134.2MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 128 PlacesBefore, 29 PlacesAfterwards, 128 TransitionsBefore, 27 TransitionsAfterwards, 912 CoEnabledTransitionPairs, 8 FixpointIterations, 88 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 136 TotalNumberOfCompositions, 2094 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1321, independent: 1142, independent conditional: 0, independent unconditional: 1142, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 505, independent: 481, independent conditional: 0, independent unconditional: 481, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1321, independent: 661, independent conditional: 0, independent unconditional: 661, dependent: 155, dependent conditional: 0, dependent unconditional: 155, unknown: 505, unknown conditional: 0, unknown unconditional: 505] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1699]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; [L1695] 0 pthread_mutex_t mutex; [L1696] 0 int pdev; [L1726] CALL, EXPR 0 module_init() [L1705] 0 pdev = 1 [L1706] EXPR 0 pdev==1 [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1709] 0 return 0; [L1726] RET, EXPR 0 module_init() [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1726] COND FALSE 0 !(module_init()!=0) [L1727] CALL 0 module_exit() [L1717] 0 void *status; [L1718] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=4, status={5:0}, t1={3:0}] [L1718] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 4=1151, pdev = 6=1153, pdev=4, status={5:0}, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 6=1153, pdev=4, t1={3:0}] Now there is a data race on ~pdev~0 between C: pdev = 4 [1718] and C: pdev = 6 [1699] - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 150 locations, 12 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: 4.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 2 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=4, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-31 19:01:06,409 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE