./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/ldv-races/race-1_3b-join.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_3b-join.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 16:31:41,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 16:31:41,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 16:31:41,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 16:31:41,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 16:31:41,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 16:31:41,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 16:31:41,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 16:31:41,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 16:31:41,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 16:31:41,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 16:31:41,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 16:31:41,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 16:31:41,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 16:31:41,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 16:31:41,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 16:31:41,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 16:31:41,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 16:31:41,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 16:31:41,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 16:31:41,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 16:31:41,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 16:31:41,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 16:31:41,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 16:31:41,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 16:31:41,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 16:31:41,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 16:31:41,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 16:31:41,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 16:31:41,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 16:31:41,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 16:31:41,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 16:31:41,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 16:31:41,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 16:31:41,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 16:31:41,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 16:31:41,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 16:31:41,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 16:31:41,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 16:31:41,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 16:31:41,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 16:31:41,588 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 16:31:41,620 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 16:31:41,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 16:31:41,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 16:31:41,622 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 16:31:41,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 16:31:41,623 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 16:31:41,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 16:31:41,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 16:31:41,624 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 16:31:41,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 16:31:41,625 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 16:31:41,625 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 16:31:41,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 16:31:41,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 16:31:41,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 16:31:41,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 16:31:41,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 16:31:41,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 16:31:41,627 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 16:31:41,627 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 16:31:41,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 16:31:41,627 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 16:31:41,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 16:31:41,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 16:31:41,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 16:31:41,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 16:31:41,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:31:41,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 16:31:41,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 16:31:41,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 16:31:41,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 16:31:41,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 16:31:41,630 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 16:31:41,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 16:31:41,630 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 16:31:41,631 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 16:31:41,631 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 16:31:41,631 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 16:31:41,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 16:31:41,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 16:31:41,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 16:31:41,944 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 16:31:41,945 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 16:31:41,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3b-join.i [2023-08-29 16:31:43,172 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 16:31:43,450 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 16:31:43,450 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3b-join.i [2023-08-29 16:31:43,465 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30be7bfcc/2fa8e2fa70674aee8853a2143fc07a74/FLAG8e17c7bda [2023-08-29 16:31:43,477 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30be7bfcc/2fa8e2fa70674aee8853a2143fc07a74 [2023-08-29 16:31:43,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 16:31:43,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 16:31:43,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 16:31:43,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 16:31:43,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 16:31:43,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:31:43" (1/1) ... [2023-08-29 16:31:43,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d85a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:43, skipping insertion in model container [2023-08-29 16:31:43,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:31:43" (1/1) ... [2023-08-29 16:31:43,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 16:31:43,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 16:31:44,149 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3b-join.i[76069,76082] [2023-08-29 16:31:44,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:31:44,189 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 16:31:44,240 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3b-join.i[76069,76082] [2023-08-29 16:31:44,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:31:44,369 INFO L208 MainTranslator]: Completed translation [2023-08-29 16:31:44,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:44 WrapperNode [2023-08-29 16:31:44,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 16:31:44,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 16:31:44,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 16:31:44,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 16:31:44,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:44" (1/1) ... [2023-08-29 16:31:44,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:44" (1/1) ... [2023-08-29 16:31:44,419 INFO L138 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2023-08-29 16:31:44,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 16:31:44,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 16:31:44,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 16:31:44,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 16:31:44,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:44" (1/1) ... [2023-08-29 16:31:44,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:44" (1/1) ... [2023-08-29 16:31:44,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:44" (1/1) ... [2023-08-29 16:31:44,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:44" (1/1) ... [2023-08-29 16:31:44,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:44" (1/1) ... [2023-08-29 16:31:44,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:44" (1/1) ... [2023-08-29 16:31:44,451 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:44" (1/1) ... [2023-08-29 16:31:44,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:44" (1/1) ... [2023-08-29 16:31:44,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 16:31:44,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 16:31:44,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 16:31:44,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 16:31:44,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:44" (1/1) ... [2023-08-29 16:31:44,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:31:44,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 16:31:44,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 16:31:44,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 16:31:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 16:31:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 16:31:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 16:31:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 16:31:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 16:31:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 16:31:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 16:31:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 16:31:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 16:31:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 16:31:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 16:31:44,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 16:31:44,532 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 16:31:44,847 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 16:31:44,849 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 16:31:44,993 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 16:31:44,999 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 16:31:45,000 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 16:31:45,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:31:45 BoogieIcfgContainer [2023-08-29 16:31:45,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 16:31:45,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 16:31:45,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 16:31:45,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 16:31:45,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:31:43" (1/3) ... [2023-08-29 16:31:45,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59992553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:31:45, skipping insertion in model container [2023-08-29 16:31:45,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:44" (2/3) ... [2023-08-29 16:31:45,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59992553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:31:45, skipping insertion in model container [2023-08-29 16:31:45,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:31:45" (3/3) ... [2023-08-29 16:31:45,008 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3b-join.i [2023-08-29 16:31:45,015 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 16:31:45,023 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 16:31:45,023 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-29 16:31:45,023 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 16:31:45,071 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 16:31:45,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 141 transitions, 290 flow [2023-08-29 16:31:45,141 INFO L130 PetriNetUnfolder]: 6/175 cut-off events. [2023-08-29 16:31:45,142 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 16:31:45,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 175 events. 6/175 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 243 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 100. Up to 4 conditions per place. [2023-08-29 16:31:45,145 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 141 transitions, 290 flow [2023-08-29 16:31:45,149 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 128 transitions, 262 flow [2023-08-29 16:31:45,152 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 16:31:45,162 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 128 transitions, 262 flow [2023-08-29 16:31:45,163 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 128 transitions, 262 flow [2023-08-29 16:31:45,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 128 transitions, 262 flow [2023-08-29 16:31:45,197 INFO L130 PetriNetUnfolder]: 4/163 cut-off events. [2023-08-29 16:31:45,198 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 16:31:45,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 163 events. 4/163 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 237 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 100. Up to 4 conditions per place. [2023-08-29 16:31:45,199 INFO L119 LiptonReduction]: Number of co-enabled transitions 912 [2023-08-29 16:31:48,581 INFO L134 LiptonReduction]: Checked pairs total: 2094 [2023-08-29 16:31:48,581 INFO L136 LiptonReduction]: Total number of compositions: 136 [2023-08-29 16:31:48,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 16:31:48,598 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5bd62d2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 16:31:48,599 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-29 16:31:48,600 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 16:31:48,600 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:31:48,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:31:48,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 16:31:48,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-29 16:31:48,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:31:48,605 INFO L85 PathProgramCache]: Analyzing trace with hash 488, now seen corresponding path program 1 times [2023-08-29 16:31:48,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:31:48,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10427469] [2023-08-29 16:31:48,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:31:48,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:31:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:31:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:31:48,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:31:48,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10427469] [2023-08-29 16:31:48,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10427469] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:31:48,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:31:48,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 16:31:48,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132918005] [2023-08-29 16:31:48,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:31:48,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 16:31:48,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:31:48,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 16:31:48,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 16:31:48,796 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 277 [2023-08-29 16:31:48,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 60 flow. Second operand has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:48,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:31:48,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 277 [2023-08-29 16:31:48,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:31:48,835 INFO L130 PetriNetUnfolder]: 15/66 cut-off events. [2023-08-29 16:31:48,835 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 16:31:48,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 66 events. 15/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 220 event pairs, 15 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 89. Up to 47 conditions per place. [2023-08-29 16:31:48,837 INFO L137 encePairwiseOnDemand]: 270/277 looper letters, 11 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2023-08-29 16:31:48,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 20 transitions, 70 flow [2023-08-29 16:31:48,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 16:31:48,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 16:31:48,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 281 transitions. [2023-08-29 16:31:48,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5072202166064982 [2023-08-29 16:31:48,849 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 281 transitions. [2023-08-29 16:31:48,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 281 transitions. [2023-08-29 16:31:48,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:31:48,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 281 transitions. [2023-08-29 16:31:48,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 140.5) internal successors, (281), 2 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:48,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:48,859 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:48,860 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 60 flow. Second operand 2 states and 281 transitions. [2023-08-29 16:31:48,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 20 transitions, 70 flow [2023-08-29 16:31:48,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 20 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 16:31:48,864 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 39 flow [2023-08-29 16:31:48,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=39, PETRI_PLACES=22, PETRI_TRANSITIONS=19} [2023-08-29 16:31:48,867 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -7 predicate places. [2023-08-29 16:31:48,868 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 39 flow [2023-08-29 16:31:48,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:48,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:31:48,877 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 16:31:48,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 16:31:48,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-29 16:31:48,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:31:48,878 INFO L85 PathProgramCache]: Analyzing trace with hash 15192368, now seen corresponding path program 1 times [2023-08-29 16:31:48,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:31:48,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899763957] [2023-08-29 16:31:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:31:48,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:31:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:31:49,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:31:49,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:31:49,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899763957] [2023-08-29 16:31:49,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899763957] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:31:49,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:31:49,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:31:49,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112390401] [2023-08-29 16:31:49,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:31:49,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:31:49,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:31:49,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:31:49,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:31:49,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 277 [2023-08-29 16:31:49,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:31:49,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 277 [2023-08-29 16:31:49,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:31:49,084 INFO L130 PetriNetUnfolder]: 15/62 cut-off events. [2023-08-29 16:31:49,085 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:31:49,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 62 events. 15/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 186 event pairs, 15 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 105. Up to 42 conditions per place. [2023-08-29 16:31:49,086 INFO L137 encePairwiseOnDemand]: 274/277 looper letters, 10 selfloop transitions, 0 changer transitions 2/20 dead transitions. [2023-08-29 16:31:49,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 20 transitions, 65 flow [2023-08-29 16:31:49,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:31:49,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:31:49,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2023-08-29 16:31:49,089 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.470517448856799 [2023-08-29 16:31:49,089 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 391 transitions. [2023-08-29 16:31:49,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 391 transitions. [2023-08-29 16:31:49,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:31:49,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 391 transitions. [2023-08-29 16:31:49,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,094 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,094 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 39 flow. Second operand 3 states and 391 transitions. [2023-08-29 16:31:49,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 20 transitions, 65 flow [2023-08-29 16:31:49,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 65 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:31:49,095 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 41 flow [2023-08-29 16:31:49,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2023-08-29 16:31:49,096 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -5 predicate places. [2023-08-29 16:31:49,096 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 41 flow [2023-08-29 16:31:49,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:31:49,096 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 16:31:49,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 16:31:49,097 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-29 16:31:49,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:31:49,097 INFO L85 PathProgramCache]: Analyzing trace with hash 465467150, now seen corresponding path program 1 times [2023-08-29 16:31:49,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:31:49,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714240458] [2023-08-29 16:31:49,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:31:49,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:31:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:31:49,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:31:49,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:31:49,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714240458] [2023-08-29 16:31:49,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714240458] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:31:49,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:31:49,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:31:49,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534636933] [2023-08-29 16:31:49,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:31:49,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:31:49,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:31:49,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:31:49,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:31:49,197 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 277 [2023-08-29 16:31:49,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:31:49,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 277 [2023-08-29 16:31:49,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:31:49,237 INFO L130 PetriNetUnfolder]: 22/81 cut-off events. [2023-08-29 16:31:49,238 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 16:31:49,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 81 events. 22/81 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 271 event pairs, 13 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 147. Up to 47 conditions per place. [2023-08-29 16:31:49,239 INFO L137 encePairwiseOnDemand]: 272/277 looper letters, 13 selfloop transitions, 4 changer transitions 2/25 dead transitions. [2023-08-29 16:31:49,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 97 flow [2023-08-29 16:31:49,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:31:49,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:31:49,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2023-08-29 16:31:49,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4500601684717208 [2023-08-29 16:31:49,241 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 374 transitions. [2023-08-29 16:31:49,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions. [2023-08-29 16:31:49,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:31:49,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions. [2023-08-29 16:31:49,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,245 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,245 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 41 flow. Second operand 3 states and 374 transitions. [2023-08-29 16:31:49,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 97 flow [2023-08-29 16:31:49,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 89 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-29 16:31:49,247 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 61 flow [2023-08-29 16:31:49,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2023-08-29 16:31:49,248 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -4 predicate places. [2023-08-29 16:31:49,248 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 61 flow [2023-08-29 16:31:49,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:31:49,249 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 16:31:49,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 16:31:49,249 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-29 16:31:49,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:31:49,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1544993531, now seen corresponding path program 1 times [2023-08-29 16:31:49,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:31:49,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950159043] [2023-08-29 16:31:49,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:31:49,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:31:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:31:49,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:31:49,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:31:49,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950159043] [2023-08-29 16:31:49,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950159043] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:31:49,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:31:49,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:31:49,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656304159] [2023-08-29 16:31:49,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:31:49,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:31:49,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:31:49,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:31:49,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:31:49,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 277 [2023-08-29 16:31:49,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:31:49,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 277 [2023-08-29 16:31:49,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:31:49,397 INFO L130 PetriNetUnfolder]: 24/80 cut-off events. [2023-08-29 16:31:49,400 INFO L131 PetriNetUnfolder]: For 18/20 co-relation queries the response was YES. [2023-08-29 16:31:49,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 80 events. 24/80 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 255 event pairs, 13 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 189. Up to 48 conditions per place. [2023-08-29 16:31:49,401 INFO L137 encePairwiseOnDemand]: 272/277 looper letters, 16 selfloop transitions, 6 changer transitions 0/27 dead transitions. [2023-08-29 16:31:49,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 27 transitions, 132 flow [2023-08-29 16:31:49,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:31:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:31:49,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2023-08-29 16:31:49,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44404332129963897 [2023-08-29 16:31:49,405 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2023-08-29 16:31:49,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2023-08-29 16:31:49,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:31:49,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2023-08-29 16:31:49,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,410 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,410 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 61 flow. Second operand 3 states and 369 transitions. [2023-08-29 16:31:49,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 27 transitions, 132 flow [2023-08-29 16:31:49,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 27 transitions, 125 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 16:31:49,411 INFO L231 Difference]: Finished difference. Result has 27 places, 24 transitions, 105 flow [2023-08-29 16:31:49,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=27, PETRI_TRANSITIONS=24} [2023-08-29 16:31:49,413 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -2 predicate places. [2023-08-29 16:31:49,413 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 105 flow [2023-08-29 16:31:49,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:49,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:31:49,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:31:49,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 16:31:49,414 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-29 16:31:49,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:31:49,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1332692985, now seen corresponding path program 1 times [2023-08-29 16:31:49,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:31:49,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137033609] [2023-08-29 16:31:49,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:31:49,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:31:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 16:31:49,445 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 16:31:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 16:31:49,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 16:31:49,483 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 16:31:49,483 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2023-08-29 16:31:49,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-08-29 16:31:49,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-08-29 16:31:49,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-08-29 16:31:49,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-08-29 16:31:49,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-08-29 16:31:49,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-08-29 16:31:49,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-08-29 16:31:49,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-08-29 16:31:49,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-08-29 16:31:49,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-08-29 16:31:49,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-08-29 16:31:49,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 16:31:49,487 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-29 16:31:49,492 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 16:31:49,492 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 16:31:49,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:31:49 BasicIcfg [2023-08-29 16:31:49,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 16:31:49,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 16:31:49,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 16:31:49,513 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 16:31:49,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:31:45" (3/4) ... [2023-08-29 16:31:49,515 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 16:31:49,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 16:31:49,516 INFO L158 Benchmark]: Toolchain (without parser) took 6035.91ms. Allocated memory was 69.2MB in the beginning and 104.9MB in the end (delta: 35.7MB). Free memory was 44.2MB in the beginning and 69.0MB in the end (delta: -24.7MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-08-29 16:31:49,516 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 32.2MB in the beginning and 32.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 16:31:49,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 889.19ms. Allocated memory is still 69.2MB. Free memory was 44.0MB in the beginning and 35.3MB in the end (delta: 8.7MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2023-08-29 16:31:49,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.12ms. Allocated memory is still 69.2MB. Free memory was 35.3MB in the beginning and 32.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 16:31:49,518 INFO L158 Benchmark]: Boogie Preprocessor took 37.85ms. Allocated memory is still 69.2MB. Free memory was 32.0MB in the beginning and 29.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 16:31:49,518 INFO L158 Benchmark]: RCFGBuilder took 542.85ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 29.3MB in the beginning and 40.3MB in the end (delta: -11.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-08-29 16:31:49,518 INFO L158 Benchmark]: TraceAbstraction took 4508.80ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 39.7MB in the beginning and 69.3MB in the end (delta: -29.6MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2023-08-29 16:31:49,519 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 104.9MB. Free memory was 69.3MB in the beginning and 69.0MB in the end (delta: 365.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 16:31:49,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 32.2MB in the beginning and 32.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 889.19ms. Allocated memory is still 69.2MB. Free memory was 44.0MB in the beginning and 35.3MB in the end (delta: 8.7MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.12ms. Allocated memory is still 69.2MB. Free memory was 35.3MB in the beginning and 32.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.85ms. Allocated memory is still 69.2MB. Free memory was 32.0MB in the beginning and 29.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.85ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 29.3MB in the beginning and 40.3MB in the end (delta: -11.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4508.80ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 39.7MB in the beginning and 69.3MB in the end (delta: -29.6MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 104.9MB. Free memory was 69.3MB in the beginning and 69.0MB in the end (delta: 365.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 128 PlacesBefore, 29 PlacesAfterwards, 128 TransitionsBefore, 27 TransitionsAfterwards, 912 CoEnabledTransitionPairs, 8 FixpointIterations, 88 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 136 TotalNumberOfCompositions, 2094 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1321, independent: 1142, independent conditional: 0, independent unconditional: 1142, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 505, independent: 481, independent conditional: 0, independent unconditional: 481, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1321, independent: 661, independent conditional: 0, independent unconditional: 661, dependent: 155, dependent conditional: 0, dependent unconditional: 155, unknown: 505, unknown conditional: 0, unknown unconditional: 505] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1699]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; [L1695] 0 pthread_mutex_t mutex; [L1696] 0 int pdev; [L1726] CALL, EXPR 0 module_init() [L1705] 0 pdev = 1 [L1706] EXPR 0 pdev==1 [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1709] 0 return 0; [L1726] RET, EXPR 0 module_init() [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1726] COND FALSE 0 !(module_init()!=0) [L1727] CALL 0 module_exit() [L1717] 0 void *status; [L1718] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=4, status={5:0}, t1={3:0}] [L1718] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 4=1151, pdev = 6=1153, pdev=4, status={5:0}, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 6=1153, pdev=4, t1={3:0}] Now there is a data race on ~pdev~0 between C: pdev = 4 [1718] and C: pdev = 6 [1699] - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 150 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 2 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=4, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-29 16:31:49,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE