./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c 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 /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.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 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:30:57,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:30:57,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:30:57,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:30:57,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:30:57,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:30:57,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:30:57,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:30:57,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:30:57,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:30:57,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:30:57,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:30:57,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:30:57,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:30:57,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:30:57,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:30:57,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:30:57,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:30:57,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:30:57,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:30:57,313 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:30:57,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:30:57,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:30:57,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:30:57,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:30:57,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:30:57,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:30:57,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:30:57,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:30:57,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:30:57,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:30:57,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:30:57,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:30:57,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:30:57,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:30:57,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:30:57,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:30:57,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:30:57,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:30:57,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:30:57,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:30:57,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:30:57,336 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:30:57,368 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:30:57,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:30:57,369 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:30:57,370 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:30:57,370 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:30:57,371 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:30:57,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:30:57,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:30:57,372 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:30:57,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:30:57,373 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:30:57,373 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:30:57,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:30:57,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:30:57,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:30:57,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:30:57,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:30:57,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:30:57,374 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:30:57,375 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:30:57,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:30:57,376 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:30:57,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:30:57,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:30:57,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:30:57,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:30:57,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:30:57,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:30:57,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:30:57,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:30:57,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:30:57,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:30:57,379 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:30:57,379 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:30:57,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:30:57,379 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 [2022-04-18 16:30:57,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:30:57,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:30:57,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:30:57,645 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:30:57,646 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:30:57,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i [2022-04-18 16:30:57,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25b734daf/f18635e3135440c4bcd557f5c8e334f1/FLAGdb05741ed [2022-04-18 16:30:58,229 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:30:58,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i [2022-04-18 16:30:58,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25b734daf/f18635e3135440c4bcd557f5c8e334f1/FLAGdb05741ed [2022-04-18 16:30:58,684 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25b734daf/f18635e3135440c4bcd557f5c8e334f1 [2022-04-18 16:30:58,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:30:58,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:30:58,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:30:58,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:30:58,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:30:58,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:30:58" (1/1) ... [2022-04-18 16:30:58,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bbfd1c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:58, skipping insertion in model container [2022-04-18 16:30:58,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:30:58" (1/1) ... [2022-04-18 16:30:58,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:30:58,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:30:59,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i[55285,55298] [2022-04-18 16:30:59,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:30:59,148 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:30:59,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i[55285,55298] [2022-04-18 16:30:59,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:30:59,261 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:30:59,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:59 WrapperNode [2022-04-18 16:30:59,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:30:59,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:30:59,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:30:59,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:30:59,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:59" (1/1) ... [2022-04-18 16:30:59,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:59" (1/1) ... [2022-04-18 16:30:59,333 INFO L137 Inliner]: procedures = 323, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2022-04-18 16:30:59,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:30:59,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:30:59,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:30:59,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:30:59,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:59" (1/1) ... [2022-04-18 16:30:59,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:59" (1/1) ... [2022-04-18 16:30:59,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:59" (1/1) ... [2022-04-18 16:30:59,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:59" (1/1) ... [2022-04-18 16:30:59,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:59" (1/1) ... [2022-04-18 16:30:59,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:59" (1/1) ... [2022-04-18 16:30:59,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:59" (1/1) ... [2022-04-18 16:30:59,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:30:59,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:30:59,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:30:59,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:30:59,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:59" (1/1) ... [2022-04-18 16:30:59,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:30:59,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:30:59,401 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) [2022-04-18 16:30:59,407 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 [2022-04-18 16:30:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:30:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 16:30:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:30:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:30:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:30:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:30:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:30:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 16:30:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:30:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-04-18 16:30:59,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-04-18 16:30:59,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:30:59,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:30:59,445 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:30:59,547 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:30:59,549 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:30:59,885 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:30:59,894 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:30:59,895 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 16:30:59,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:30:59 BoogieIcfgContainer [2022-04-18 16:30:59,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:30:59,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:30:59,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:30:59,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:30:59,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:30:58" (1/3) ... [2022-04-18 16:30:59,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd78769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:30:59, skipping insertion in model container [2022-04-18 16:30:59,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:59" (2/3) ... [2022-04-18 16:30:59,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd78769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:30:59, skipping insertion in model container [2022-04-18 16:30:59,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:30:59" (3/3) ... [2022-04-18 16:30:59,906 INFO L111 eAbstractionObserver]: Analyzing ICFG sigma.i [2022-04-18 16:30:59,911 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:30:59,911 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:30:59,911 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-04-18 16:30:59,912 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:30:59,964 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 16:31:00,015 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:31:00,026 INFO L340 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 [2022-04-18 16:31:00,027 INFO L341 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-04-18 16:31:00,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 187 places, 192 transitions, 392 flow [2022-04-18 16:31:00,141 INFO L129 PetriNetUnfolder]: 13/281 cut-off events. [2022-04-18 16:31:00,142 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 16:31:00,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 281 events. 13/281 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 636 event pairs, 0 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 160. Up to 4 conditions per place. [2022-04-18 16:31:00,150 INFO L82 GeneralOperation]: Start removeDead. Operand has 187 places, 192 transitions, 392 flow [2022-04-18 16:31:00,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 192 transitions, 392 flow [2022-04-18 16:31:00,173 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2022-04-18 16:31:00,174 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:31:00,174 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:00,175 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:00,176 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 16:31:00,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:00,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1037307404, now seen corresponding path program 1 times [2022-04-18 16:31:00,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:00,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107615214] [2022-04-18 16:31:00,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:00,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:00,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:31:00,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:00,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107615214] [2022-04-18 16:31:00,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107615214] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:00,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:00,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:00,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536323486] [2022-04-18 16:31:00,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:00,402 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:00,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:00,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:00,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:00,439 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 192 [2022-04-18 16:31:00,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 192 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 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) [2022-04-18 16:31:00,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:00,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 192 [2022-04-18 16:31:00,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:00,572 INFO L129 PetriNetUnfolder]: 3/259 cut-off events. [2022-04-18 16:31:00,572 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-04-18 16:31:00,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 259 events. 3/259 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 528 event pairs, 0 based on Foata normal form. 4/232 useless extension candidates. Maximal degree in co-relation 159. Up to 22 conditions per place. [2022-04-18 16:31:00,575 INFO L132 encePairwiseOnDemand]: 179/192 looper letters, 13 selfloop transitions, 1 changer transitions 2/179 dead transitions. [2022-04-18 16:31:00,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 179 transitions, 394 flow [2022-04-18 16:31:00,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:00,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:00,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2022-04-18 16:31:00,589 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9045138888888888 [2022-04-18 16:31:00,589 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2022-04-18 16:31:00,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2022-04-18 16:31:00,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:00,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2022-04-18 16:31:00,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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) [2022-04-18 16:31:00,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-04-18 16:31:00,607 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-04-18 16:31:00,609 INFO L186 Difference]: Start difference. First operand has 187 places, 192 transitions, 392 flow. Second operand 3 states and 521 transitions. [2022-04-18 16:31:00,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 179 transitions, 394 flow [2022-04-18 16:31:00,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 179 transitions, 394 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:31:00,617 INFO L242 Difference]: Finished difference. Result has 182 places, 177 transitions, 364 flow [2022-04-18 16:31:00,619 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=182, PETRI_TRANSITIONS=177} [2022-04-18 16:31:00,622 INFO L335 CegarLoopForPetriNet]: 187 programPoint places, -5 predicate places. [2022-04-18 16:31:00,623 INFO L478 AbstractCegarLoop]: Abstraction has has 182 places, 177 transitions, 364 flow [2022-04-18 16:31:00,623 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 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) [2022-04-18 16:31:00,623 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:00,624 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:00,624 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:31:00,624 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 16:31:00,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:00,625 INFO L85 PathProgramCache]: Analyzing trace with hash -710396765, now seen corresponding path program 1 times [2022-04-18 16:31:00,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:00,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32790700] [2022-04-18 16:31:00,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:00,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:00,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:31:00,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:00,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32790700] [2022-04-18 16:31:00,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32790700] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:00,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:00,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:31:00,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770813918] [2022-04-18 16:31:00,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:00,839 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:31:00,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:00,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:31:00,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:31:00,843 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 192 [2022-04-18 16:31:00,845 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 177 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 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) [2022-04-18 16:31:00,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:00,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 192 [2022-04-18 16:31:00,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:01,141 INFO L129 PetriNetUnfolder]: 171/676 cut-off events. [2022-04-18 16:31:01,142 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-04-18 16:31:01,146 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1102 conditions, 676 events. 171/676 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3287 event pairs, 168 based on Foata normal form. 0/572 useless extension candidates. Maximal degree in co-relation 1076. Up to 413 conditions per place. [2022-04-18 16:31:01,148 INFO L132 encePairwiseOnDemand]: 186/192 looper letters, 48 selfloop transitions, 5 changer transitions 0/176 dead transitions. [2022-04-18 16:31:01,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 176 transitions, 468 flow [2022-04-18 16:31:01,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:31:01,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:31:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 840 transitions. [2022-04-18 16:31:01,155 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2022-04-18 16:31:01,155 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 840 transitions. [2022-04-18 16:31:01,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 840 transitions. [2022-04-18 16:31:01,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:01,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 840 transitions. [2022-04-18 16:31:01,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 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) [2022-04-18 16:31:01,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 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) [2022-04-18 16:31:01,165 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 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) [2022-04-18 16:31:01,165 INFO L186 Difference]: Start difference. First operand has 182 places, 177 transitions, 364 flow. Second operand 6 states and 840 transitions. [2022-04-18 16:31:01,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 176 transitions, 468 flow [2022-04-18 16:31:01,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 176 transitions, 467 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:31:01,174 INFO L242 Difference]: Finished difference. Result has 183 places, 176 transitions, 371 flow [2022-04-18 16:31:01,175 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=371, PETRI_PLACES=183, PETRI_TRANSITIONS=176} [2022-04-18 16:31:01,176 INFO L335 CegarLoopForPetriNet]: 187 programPoint places, -4 predicate places. [2022-04-18 16:31:01,176 INFO L478 AbstractCegarLoop]: Abstraction has has 183 places, 176 transitions, 371 flow [2022-04-18 16:31:01,177 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 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) [2022-04-18 16:31:01,177 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:01,177 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:01,177 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:31:01,178 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 16:31:01,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:01,179 INFO L85 PathProgramCache]: Analyzing trace with hash -176201588, now seen corresponding path program 1 times [2022-04-18 16:31:01,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:01,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681885641] [2022-04-18 16:31:01,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:01,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:01,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:31:01,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:01,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681885641] [2022-04-18 16:31:01,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681885641] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:01,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:01,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:01,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936477276] [2022-04-18 16:31:01,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:01,275 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:01,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:01,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:01,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:01,277 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 192 [2022-04-18 16:31:01,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 176 transitions, 371 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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) [2022-04-18 16:31:01,278 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:01,278 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 192 [2022-04-18 16:31:01,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:01,332 INFO L129 PetriNetUnfolder]: 12/315 cut-off events. [2022-04-18 16:31:01,333 INFO L130 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2022-04-18 16:31:01,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 315 events. 12/315 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 867 event pairs, 9 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 341. Up to 36 conditions per place. [2022-04-18 16:31:01,335 INFO L132 encePairwiseOnDemand]: 189/192 looper letters, 14 selfloop transitions, 2 changer transitions 0/175 dead transitions. [2022-04-18 16:31:01,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 175 transitions, 401 flow [2022-04-18 16:31:01,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:01,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:01,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2022-04-18 16:31:01,338 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9045138888888888 [2022-04-18 16:31:01,338 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2022-04-18 16:31:01,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2022-04-18 16:31:01,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:01,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2022-04-18 16:31:01,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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) [2022-04-18 16:31:01,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-04-18 16:31:01,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-04-18 16:31:01,343 INFO L186 Difference]: Start difference. First operand has 183 places, 176 transitions, 371 flow. Second operand 3 states and 521 transitions. [2022-04-18 16:31:01,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 175 transitions, 401 flow [2022-04-18 16:31:01,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 175 transitions, 391 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:31:01,350 INFO L242 Difference]: Finished difference. Result has 179 places, 175 transitions, 363 flow [2022-04-18 16:31:01,350 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=363, PETRI_PLACES=179, PETRI_TRANSITIONS=175} [2022-04-18 16:31:01,353 INFO L335 CegarLoopForPetriNet]: 187 programPoint places, -8 predicate places. [2022-04-18 16:31:01,353 INFO L478 AbstractCegarLoop]: Abstraction has has 179 places, 175 transitions, 363 flow [2022-04-18 16:31:01,353 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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) [2022-04-18 16:31:01,354 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:01,354 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:01,354 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:31:01,354 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 16:31:01,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:01,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1835896706, now seen corresponding path program 1 times [2022-04-18 16:31:01,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:01,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956452115] [2022-04-18 16:31:01,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:01,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:01,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:31:01,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:01,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956452115] [2022-04-18 16:31:01,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956452115] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:01,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:01,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:31:01,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881270418] [2022-04-18 16:31:01,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:01,531 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:31:01,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:01,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:31:01,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:31:01,536 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 192 [2022-04-18 16:31:01,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 175 transitions, 363 flow. Second operand has 6 states, 6 states have (on average 135.33333333333334) internal successors, (812), 6 states have internal predecessors, (812), 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) [2022-04-18 16:31:01,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:01,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 192 [2022-04-18 16:31:01,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:01,859 INFO L129 PetriNetUnfolder]: 240/892 cut-off events. [2022-04-18 16:31:01,860 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-04-18 16:31:01,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1496 conditions, 892 events. 240/892 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4636 event pairs, 10 based on Foata normal form. 0/771 useless extension candidates. Maximal degree in co-relation 1470. Up to 386 conditions per place. [2022-04-18 16:31:01,867 INFO L132 encePairwiseOnDemand]: 170/192 looper letters, 76 selfloop transitions, 28 changer transitions 0/228 dead transitions. [2022-04-18 16:31:01,867 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 228 transitions, 680 flow [2022-04-18 16:31:01,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:31:01,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:31:01,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 905 transitions. [2022-04-18 16:31:01,870 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7855902777777778 [2022-04-18 16:31:01,870 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 905 transitions. [2022-04-18 16:31:01,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 905 transitions. [2022-04-18 16:31:01,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:01,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 905 transitions. [2022-04-18 16:31:01,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 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) [2022-04-18 16:31:01,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 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) [2022-04-18 16:31:01,882 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 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) [2022-04-18 16:31:01,882 INFO L186 Difference]: Start difference. First operand has 179 places, 175 transitions, 363 flow. Second operand 6 states and 905 transitions. [2022-04-18 16:31:01,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 228 transitions, 680 flow [2022-04-18 16:31:01,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 228 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:01,889 INFO L242 Difference]: Finished difference. Result has 186 places, 198 transitions, 551 flow [2022-04-18 16:31:01,889 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=551, PETRI_PLACES=186, PETRI_TRANSITIONS=198} [2022-04-18 16:31:01,892 INFO L335 CegarLoopForPetriNet]: 187 programPoint places, -1 predicate places. [2022-04-18 16:31:01,892 INFO L478 AbstractCegarLoop]: Abstraction has has 186 places, 198 transitions, 551 flow [2022-04-18 16:31:01,893 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.33333333333334) internal successors, (812), 6 states have internal predecessors, (812), 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) [2022-04-18 16:31:01,894 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:01,894 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:01,894 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:31:01,894 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 16:31:01,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:01,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1867222341, now seen corresponding path program 1 times [2022-04-18 16:31:01,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:01,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583238561] [2022-04-18 16:31:01,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:01,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:01,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:31:01,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:01,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583238561] [2022-04-18 16:31:01,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583238561] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:01,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:01,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:01,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373518035] [2022-04-18 16:31:01,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:01,967 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:01,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:01,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:01,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:01,969 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 192 [2022-04-18 16:31:01,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 198 transitions, 551 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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) [2022-04-18 16:31:01,970 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:01,970 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 192 [2022-04-18 16:31:01,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:02,051 INFO L129 PetriNetUnfolder]: 53/529 cut-off events. [2022-04-18 16:31:02,052 INFO L130 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2022-04-18 16:31:02,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 835 conditions, 529 events. 53/529 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2286 event pairs, 4 based on Foata normal form. 0/484 useless extension candidates. Maximal degree in co-relation 807. Up to 68 conditions per place. [2022-04-18 16:31:02,055 INFO L132 encePairwiseOnDemand]: 188/192 looper letters, 9 selfloop transitions, 1 changer transitions 0/195 dead transitions. [2022-04-18 16:31:02,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 195 transitions, 565 flow [2022-04-18 16:31:02,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:02,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:02,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2022-04-18 16:31:02,058 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9131944444444444 [2022-04-18 16:31:02,058 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2022-04-18 16:31:02,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2022-04-18 16:31:02,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:02,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2022-04-18 16:31:02,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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) [2022-04-18 16:31:02,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-04-18 16:31:02,062 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-04-18 16:31:02,062 INFO L186 Difference]: Start difference. First operand has 186 places, 198 transitions, 551 flow. Second operand 3 states and 526 transitions. [2022-04-18 16:31:02,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 195 transitions, 565 flow [2022-04-18 16:31:02,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 195 transitions, 565 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:31:02,069 INFO L242 Difference]: Finished difference. Result has 185 places, 195 transitions, 547 flow [2022-04-18 16:31:02,070 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=547, PETRI_PLACES=185, PETRI_TRANSITIONS=195} [2022-04-18 16:31:02,071 INFO L335 CegarLoopForPetriNet]: 187 programPoint places, -2 predicate places. [2022-04-18 16:31:02,071 INFO L478 AbstractCegarLoop]: Abstraction has has 185 places, 195 transitions, 547 flow [2022-04-18 16:31:02,071 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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) [2022-04-18 16:31:02,071 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:02,072 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:02,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:31:02,072 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 16:31:02,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:02,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1419929835, now seen corresponding path program 1 times [2022-04-18 16:31:02,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:02,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881874846] [2022-04-18 16:31:02,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:02,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:02,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:31:02,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:02,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881874846] [2022-04-18 16:31:02,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881874846] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:02,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:02,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:02,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33122635] [2022-04-18 16:31:02,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:02,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:02,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:02,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:02,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:02,121 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 192 [2022-04-18 16:31:02,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 195 transitions, 547 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2022-04-18 16:31:02,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:02,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 192 [2022-04-18 16:31:02,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:02,206 INFO L129 PetriNetUnfolder]: 83/738 cut-off events. [2022-04-18 16:31:02,207 INFO L130 PetriNetUnfolder]: For 81/81 co-relation queries the response was YES. [2022-04-18 16:31:02,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1210 conditions, 738 events. 83/738 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3831 event pairs, 4 based on Foata normal form. 0/679 useless extension candidates. Maximal degree in co-relation 1181. Up to 106 conditions per place. [2022-04-18 16:31:02,211 INFO L132 encePairwiseOnDemand]: 186/192 looper letters, 11 selfloop transitions, 4 changer transitions 0/199 dead transitions. [2022-04-18 16:31:02,211 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 199 transitions, 585 flow [2022-04-18 16:31:02,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2022-04-18 16:31:02,213 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9357638888888888 [2022-04-18 16:31:02,214 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 539 transitions. [2022-04-18 16:31:02,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 539 transitions. [2022-04-18 16:31:02,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:02,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 539 transitions. [2022-04-18 16:31:02,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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) [2022-04-18 16:31:02,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-04-18 16:31:02,217 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-04-18 16:31:02,217 INFO L186 Difference]: Start difference. First operand has 185 places, 195 transitions, 547 flow. Second operand 3 states and 539 transitions. [2022-04-18 16:31:02,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 199 transitions, 585 flow [2022-04-18 16:31:02,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 199 transitions, 584 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:31:02,225 INFO L242 Difference]: Finished difference. Result has 187 places, 197 transitions, 574 flow [2022-04-18 16:31:02,226 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=574, PETRI_PLACES=187, PETRI_TRANSITIONS=197} [2022-04-18 16:31:02,228 INFO L335 CegarLoopForPetriNet]: 187 programPoint places, 0 predicate places. [2022-04-18 16:31:02,228 INFO L478 AbstractCegarLoop]: Abstraction has has 187 places, 197 transitions, 574 flow [2022-04-18 16:31:02,229 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2022-04-18 16:31:02,229 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:02,229 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:02,230 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:31:02,230 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 16:31:02,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:02,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1504989100, now seen corresponding path program 1 times [2022-04-18 16:31:02,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:02,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680096083] [2022-04-18 16:31:02,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:02,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:02,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:31:02,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:02,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680096083] [2022-04-18 16:31:02,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680096083] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:02,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:02,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:02,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882779273] [2022-04-18 16:31:02,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:02,279 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:02,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:02,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:02,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:02,284 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 192 [2022-04-18 16:31:02,284 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 197 transitions, 574 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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) [2022-04-18 16:31:02,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:02,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 192 [2022-04-18 16:31:02,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:02,376 INFO L129 PetriNetUnfolder]: 87/789 cut-off events. [2022-04-18 16:31:02,377 INFO L130 PetriNetUnfolder]: For 117/123 co-relation queries the response was YES. [2022-04-18 16:31:02,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1340 conditions, 789 events. 87/789 cut-off events. For 117/123 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4335 event pairs, 7 based on Foata normal form. 0/735 useless extension candidates. Maximal degree in co-relation 1309. Up to 118 conditions per place. [2022-04-18 16:31:02,381 INFO L132 encePairwiseOnDemand]: 187/192 looper letters, 18 selfloop transitions, 4 changer transitions 0/203 dead transitions. [2022-04-18 16:31:02,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 203 transitions, 642 flow [2022-04-18 16:31:02,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:02,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2022-04-18 16:31:02,383 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9236111111111112 [2022-04-18 16:31:02,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2022-04-18 16:31:02,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2022-04-18 16:31:02,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:02,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2022-04-18 16:31:02,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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) [2022-04-18 16:31:02,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-04-18 16:31:02,387 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-04-18 16:31:02,387 INFO L186 Difference]: Start difference. First operand has 187 places, 197 transitions, 574 flow. Second operand 3 states and 532 transitions. [2022-04-18 16:31:02,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 203 transitions, 642 flow [2022-04-18 16:31:02,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 203 transitions, 630 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:02,393 INFO L242 Difference]: Finished difference. Result has 189 places, 200 transitions, 598 flow [2022-04-18 16:31:02,394 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=598, PETRI_PLACES=189, PETRI_TRANSITIONS=200} [2022-04-18 16:31:02,394 INFO L335 CegarLoopForPetriNet]: 187 programPoint places, 2 predicate places. [2022-04-18 16:31:02,395 INFO L478 AbstractCegarLoop]: Abstraction has has 189 places, 200 transitions, 598 flow [2022-04-18 16:31:02,395 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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) [2022-04-18 16:31:02,395 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:02,395 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:02,396 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:31:02,396 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 16:31:02,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:02,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1840371008, now seen corresponding path program 1 times [2022-04-18 16:31:02,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:02,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289399606] [2022-04-18 16:31:02,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:02,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:02,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:31:02,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:02,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289399606] [2022-04-18 16:31:02,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289399606] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:02,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:02,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:31:02,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702028710] [2022-04-18 16:31:02,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:02,476 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:31:02,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:02,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:31:02,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:31:02,478 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 192 [2022-04-18 16:31:02,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 200 transitions, 598 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 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) [2022-04-18 16:31:02,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:02,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 192 [2022-04-18 16:31:02,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:02,606 INFO L129 PetriNetUnfolder]: 77/631 cut-off events. [2022-04-18 16:31:02,607 INFO L130 PetriNetUnfolder]: For 111/118 co-relation queries the response was YES. [2022-04-18 16:31:02,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1212 conditions, 631 events. 77/631 cut-off events. For 111/118 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3211 event pairs, 0 based on Foata normal form. 0/591 useless extension candidates. Maximal degree in co-relation 1178. Up to 103 conditions per place. [2022-04-18 16:31:02,610 INFO L132 encePairwiseOnDemand]: 185/192 looper letters, 40 selfloop transitions, 5 changer transitions 18/209 dead transitions. [2022-04-18 16:31:02,611 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 209 transitions, 710 flow [2022-04-18 16:31:02,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 16:31:02,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-04-18 16:31:02,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 638 transitions. [2022-04-18 16:31:02,613 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8307291666666666 [2022-04-18 16:31:02,613 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 638 transitions. [2022-04-18 16:31:02,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 638 transitions. [2022-04-18 16:31:02,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:02,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 638 transitions. [2022-04-18 16:31:02,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 159.5) internal successors, (638), 4 states have internal predecessors, (638), 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) [2022-04-18 16:31:02,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 192.0) internal successors, (960), 5 states have internal predecessors, (960), 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) [2022-04-18 16:31:02,617 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 192.0) internal successors, (960), 5 states have internal predecessors, (960), 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) [2022-04-18 16:31:02,617 INFO L186 Difference]: Start difference. First operand has 189 places, 200 transitions, 598 flow. Second operand 4 states and 638 transitions. [2022-04-18 16:31:02,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 209 transitions, 710 flow [2022-04-18 16:31:02,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 209 transitions, 702 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:02,627 INFO L242 Difference]: Finished difference. Result has 191 places, 182 transitions, 564 flow [2022-04-18 16:31:02,628 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=564, PETRI_PLACES=191, PETRI_TRANSITIONS=182} [2022-04-18 16:31:02,631 INFO L335 CegarLoopForPetriNet]: 187 programPoint places, 4 predicate places. [2022-04-18 16:31:02,631 INFO L478 AbstractCegarLoop]: Abstraction has has 191 places, 182 transitions, 564 flow [2022-04-18 16:31:02,632 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 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) [2022-04-18 16:31:02,632 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:02,632 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:02,632 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:31:02,632 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 16:31:02,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:02,633 INFO L85 PathProgramCache]: Analyzing trace with hash -263608074, now seen corresponding path program 1 times [2022-04-18 16:31:02,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:02,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028300519] [2022-04-18 16:31:02,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:02,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:02,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:31:02,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:02,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028300519] [2022-04-18 16:31:02,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028300519] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:02,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:02,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:31:02,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202371527] [2022-04-18 16:31:02,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:02,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:31:02,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:02,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:31:02,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:31:02,791 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 192 [2022-04-18 16:31:02,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 182 transitions, 564 flow. Second operand has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 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) [2022-04-18 16:31:02,793 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:02,793 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 192 [2022-04-18 16:31:02,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:03,153 INFO L129 PetriNetUnfolder]: 470/1446 cut-off events. [2022-04-18 16:31:03,153 INFO L130 PetriNetUnfolder]: For 494/572 co-relation queries the response was YES. [2022-04-18 16:31:03,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3563 conditions, 1446 events. 470/1446 cut-off events. For 494/572 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 8954 event pairs, 88 based on Foata normal form. 11/1370 useless extension candidates. Maximal degree in co-relation 3528. Up to 848 conditions per place. [2022-04-18 16:31:03,164 INFO L132 encePairwiseOnDemand]: 172/192 looper letters, 103 selfloop transitions, 67 changer transitions 0/278 dead transitions. [2022-04-18 16:31:03,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 278 transitions, 1270 flow [2022-04-18 16:31:03,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:31:03,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:31:03,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 924 transitions. [2022-04-18 16:31:03,168 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8020833333333334 [2022-04-18 16:31:03,168 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 924 transitions. [2022-04-18 16:31:03,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 924 transitions. [2022-04-18 16:31:03,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:03,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 924 transitions. [2022-04-18 16:31:03,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 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) [2022-04-18 16:31:03,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 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) [2022-04-18 16:31:03,174 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 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) [2022-04-18 16:31:03,174 INFO L186 Difference]: Start difference. First operand has 191 places, 182 transitions, 564 flow. Second operand 6 states and 924 transitions. [2022-04-18 16:31:03,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 278 transitions, 1270 flow [2022-04-18 16:31:03,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 278 transitions, 1260 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-04-18 16:31:03,185 INFO L242 Difference]: Finished difference. Result has 182 places, 248 transitions, 1132 flow [2022-04-18 16:31:03,186 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1132, PETRI_PLACES=182, PETRI_TRANSITIONS=248} [2022-04-18 16:31:03,187 INFO L335 CegarLoopForPetriNet]: 187 programPoint places, -5 predicate places. [2022-04-18 16:31:03,187 INFO L478 AbstractCegarLoop]: Abstraction has has 182 places, 248 transitions, 1132 flow [2022-04-18 16:31:03,188 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 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) [2022-04-18 16:31:03,188 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:03,188 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:03,188 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:31:03,189 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 16:31:03,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:03,190 INFO L85 PathProgramCache]: Analyzing trace with hash 264057318, now seen corresponding path program 1 times [2022-04-18 16:31:03,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:03,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190552391] [2022-04-18 16:31:03,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:03,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 16:31:03,231 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 16:31:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 16:31:03,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-18 16:31:03,298 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 16:31:03,299 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location threadErr1ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2022-04-18 16:31:03,301 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-04-18 16:31:03,301 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-04-18 16:31:03,304 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-04-18 16:31:03,305 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-04-18 16:31:03,306 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-04-18 16:31:03,306 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-04-18 16:31:03,306 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-04-18 16:31:03,306 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2022-04-18 16:31:03,306 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-04-18 16:31:03,307 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2022-04-18 16:31:03,307 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2022-04-18 16:31:03,307 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-04-18 16:31:03,307 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-04-18 16:31:03,307 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2022-04-18 16:31:03,307 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2022-04-18 16:31:03,308 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-04-18 16:31:03,308 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-04-18 16:31:03,310 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 24 remaining) [2022-04-18 16:31:03,310 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-04-18 16:31:03,310 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-04-18 16:31:03,310 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-04-18 16:31:03,310 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-04-18 16:31:03,311 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-04-18 16:31:03,311 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:31:03,314 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:03,320 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:31:03,320 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:31:03,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:31:03 BasicIcfg [2022-04-18 16:31:03,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:31:03,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:31:03,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:31:03,398 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:31:03,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:30:59" (3/4) ... [2022-04-18 16:31:03,400 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-04-18 16:31:03,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:31:03,401 INFO L158 Benchmark]: Toolchain (without parser) took 4713.49ms. Allocated memory was 100.7MB in the beginning and 155.2MB in the end (delta: 54.5MB). Free memory was 65.6MB in the beginning and 45.2MB in the end (delta: 20.4MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. [2022-04-18 16:31:03,401 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:31:03,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.74ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 65.6MB in the beginning and 78.3MB in the end (delta: -12.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-04-18 16:31:03,402 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.82ms. Allocated memory is still 127.9MB. Free memory was 78.3MB in the beginning and 75.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:31:03,402 INFO L158 Benchmark]: Boogie Preprocessor took 34.36ms. Allocated memory is still 127.9MB. Free memory was 75.3MB in the beginning and 73.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:31:03,403 INFO L158 Benchmark]: RCFGBuilder took 528.30ms. Allocated memory is still 127.9MB. Free memory was 72.9MB in the beginning and 87.0MB in the end (delta: -14.1MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-04-18 16:31:03,403 INFO L158 Benchmark]: TraceAbstraction took 3497.88ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 86.6MB in the beginning and 45.2MB in the end (delta: 41.5MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. [2022-04-18 16:31:03,403 INFO L158 Benchmark]: Witness Printer took 3.18ms. Allocated memory is still 155.2MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:31:03,405 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 572.74ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 65.6MB in the beginning and 78.3MB in the end (delta: -12.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.82ms. Allocated memory is still 127.9MB. Free memory was 78.3MB in the beginning and 75.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.36ms. Allocated memory is still 127.9MB. Free memory was 75.3MB in the beginning and 73.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 528.30ms. Allocated memory is still 127.9MB. Free memory was 72.9MB in the beginning and 87.0MB in the end (delta: -14.1MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3497.88ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 86.6MB in the beginning and 45.2MB in the end (delta: 41.5MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. * Witness Printer took 3.18ms. Allocated memory is still 155.2MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1117]: Data race detected Data race detected The following path leads to a data race: [L1112] 0 const int SIGMA = 16; VAL [SIGMA=16] [L1113] 0 int *array; VAL [array={0:0}, SIGMA=16] [L1114] 0 int array_index=-1; VAL [array={0:0}, array_index=-1, SIGMA=16] [L1122] 0 int tid, sum; VAL [array={0:0}, array_index=-1, SIGMA=16] [L1123] 0 pthread_t *t; VAL [array={0:0}, array_index=-1, SIGMA=16, t={7:0}] [L1124] EXPR 0 sizeof(pthread_t) * SIGMA VAL [array={0:0}, array_index=-1, SIGMA=16, t={7:0}] [L1124] 0 t = (pthread_t *)malloc(sizeof(pthread_t) * SIGMA) VAL [array={0:0}, array_index=-1, malloc(sizeof(pthread_t) * SIGMA)={3:0}, SIGMA=16, t={7:0}, t = (pthread_t *)malloc(sizeof(pthread_t) * SIGMA)=67] [L1125] EXPR 0 sizeof(int) * SIGMA VAL [array={0:0}, array_index=-1, SIGMA=16, t={7:0}] [L1125] 0 array = (int *)malloc(sizeof(int) * SIGMA) VAL [array={5:0}, array = (int *)malloc(sizeof(int) * SIGMA)=68, array_index=-1, malloc(sizeof(int) * SIGMA)={5:0}, SIGMA=16, t={7:0}] [L1126] EXPR 0 \read(*t) VAL [\read(*t)={3:0}, array={5:0}, array_index=-1, SIGMA=16, t={7:0}] [L1126] 0 assume_abort_if_not(t) VAL [\read(*t)={3:0}, array={5:0}, array_index=-1, SIGMA=16, t={7:0}] [L1126] CALL 0 assume_abort_if_not(t) [L11] COND FALSE 0 !(!cond) VAL [\old(cond)=3, array={5:0}, array_index=-1, cond=3, SIGMA=16] [L1126] RET 0 assume_abort_if_not(t) [L1127] 0 assume_abort_if_not(array) VAL [array={5:0}, array_index=-1, SIGMA=16, t={7:0}] [L1127] CALL 0 assume_abort_if_not(array) [L11] COND FALSE 0 !(!cond) VAL [\old(cond)=5, array={5:0}, array_index=-1, cond=5, SIGMA=16] [L1127] RET 0 assume_abort_if_not(array) [L1128] 0 tid=0 VAL [array={5:0}, array_index=-1, SIGMA=16, t={7:0}, tid=0] [L1128] 0 tid