./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-atomic/peterson.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/pthread-atomic/peterson.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 ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-28 17:52:25,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 17:52:25,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 17:52:25,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 17:52:25,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 17:52:25,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 17:52:25,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 17:52:25,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 17:52:25,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 17:52:25,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 17:52:25,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 17:52:25,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 17:52:25,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 17:52:25,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 17:52:25,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 17:52:25,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 17:52:25,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 17:52:25,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 17:52:25,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 17:52:25,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 17:52:25,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 17:52:25,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 17:52:25,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 17:52:25,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 17:52:25,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 17:52:25,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 17:52:25,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 17:52:25,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 17:52:25,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 17:52:25,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 17:52:25,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 17:52:25,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 17:52:25,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 17:52:25,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 17:52:25,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 17:52:25,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 17:52:25,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 17:52:25,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 17:52:25,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 17:52:25,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 17:52:25,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 17:52:25,128 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 17:52:25,146 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 17:52:25,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 17:52:25,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 17:52:25,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 17:52:25,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 17:52:25,147 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 17:52:25,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 17:52:25,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 17:52:25,148 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 17:52:25,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 17:52:25,149 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 17:52:25,149 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 17:52:25,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 17:52:25,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 17:52:25,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 17:52:25,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 17:52:25,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 17:52:25,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 17:52:25,151 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 17:52:25,151 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 17:52:25,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 17:52:25,151 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 17:52:25,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 17:52:25,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 17:52:25,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 17:52:25,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 17:52:25,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:52:25,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 17:52:25,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 17:52:25,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 17:52:25,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 17:52:25,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 17:52:25,154 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 17:52:25,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 17:52:25,154 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 17:52:25,154 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 17:52:25,154 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 17:52:25,155 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 17:52:25,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 17:52:25,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 17:52:25,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 17:52:25,508 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 17:52:25,509 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 17:52:25,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2023-08-28 17:52:26,625 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 17:52:26,881 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 17:52:26,881 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2023-08-28 17:52:26,895 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a844b2137/90e15563d29b4a56b2d98a1bfc8c8032/FLAGf6d162bd7 [2023-08-28 17:52:26,907 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a844b2137/90e15563d29b4a56b2d98a1bfc8c8032 [2023-08-28 17:52:26,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 17:52:26,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 17:52:26,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 17:52:26,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 17:52:26,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 17:52:26,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:52:26" (1/1) ... [2023-08-28 17:52:26,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@edf40f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:26, skipping insertion in model container [2023-08-28 17:52:26,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:52:26" (1/1) ... [2023-08-28 17:52:26,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 17:52:26,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 17:52:27,125 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-28 17:52:27,274 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[30997,31010] [2023-08-28 17:52:27,280 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[31682,31695] [2023-08-28 17:52:27,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:52:27,299 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 17:52:27,320 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-28 17:52:27,351 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[30997,31010] [2023-08-28 17:52:27,355 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[31682,31695] [2023-08-28 17:52:27,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:52:27,397 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 17:52:27,397 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 17:52:27,398 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 17:52:27,403 INFO L208 MainTranslator]: Completed translation [2023-08-28 17:52:27,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:27 WrapperNode [2023-08-28 17:52:27,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 17:52:27,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 17:52:27,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 17:52:27,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 17:52:27,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:27" (1/1) ... [2023-08-28 17:52:27,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:27" (1/1) ... [2023-08-28 17:52:27,468 INFO L138 Inliner]: procedures = 171, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2023-08-28 17:52:27,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 17:52:27,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 17:52:27,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 17:52:27,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 17:52:27,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:27" (1/1) ... [2023-08-28 17:52:27,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:27" (1/1) ... [2023-08-28 17:52:27,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:27" (1/1) ... [2023-08-28 17:52:27,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:27" (1/1) ... [2023-08-28 17:52:27,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:27" (1/1) ... [2023-08-28 17:52:27,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:27" (1/1) ... [2023-08-28 17:52:27,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:27" (1/1) ... [2023-08-28 17:52:27,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:27" (1/1) ... [2023-08-28 17:52:27,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 17:52:27,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 17:52:27,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 17:52:27,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 17:52:27,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:27" (1/1) ... [2023-08-28 17:52:27,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:52:27,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 17:52:27,558 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) [2023-08-28 17:52:27,582 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 [2023-08-28 17:52:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-28 17:52:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-28 17:52:27,597 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-28 17:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-28 17:52:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-28 17:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 17:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-28 17:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 17:52:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 17:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 17:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 17:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-28 17:52:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 17:52:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 17:52:27,600 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-28 17:52:27,749 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 17:52:27,766 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 17:52:28,010 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 17:52:28,059 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 17:52:28,068 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-28 17:52:28,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:28 BoogieIcfgContainer [2023-08-28 17:52:28,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 17:52:28,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 17:52:28,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 17:52:28,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 17:52:28,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 05:52:26" (1/3) ... [2023-08-28 17:52:28,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b07b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:52:28, skipping insertion in model container [2023-08-28 17:52:28,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:27" (2/3) ... [2023-08-28 17:52:28,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b07b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:52:28, skipping insertion in model container [2023-08-28 17:52:28,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:28" (3/3) ... [2023-08-28 17:52:28,082 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2023-08-28 17:52:28,089 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 17:52:28,097 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 17:52:28,098 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-28 17:52:28,098 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 17:52:28,193 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-28 17:52:28,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 118 transitions, 252 flow [2023-08-28 17:52:28,276 INFO L130 PetriNetUnfolder]: 6/116 cut-off events. [2023-08-28 17:52:28,276 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:52:28,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 116 events. 6/116 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 197 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-08-28 17:52:28,281 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 118 transitions, 252 flow [2023-08-28 17:52:28,285 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 107 transitions, 223 flow [2023-08-28 17:52:28,288 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 17:52:28,295 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 107 transitions, 223 flow [2023-08-28 17:52:28,297 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 107 transitions, 223 flow [2023-08-28 17:52:28,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 107 transitions, 223 flow [2023-08-28 17:52:28,347 INFO L130 PetriNetUnfolder]: 6/107 cut-off events. [2023-08-28 17:52:28,348 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-28 17:52:28,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 107 events. 6/107 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 197 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-08-28 17:52:28,351 INFO L119 LiptonReduction]: Number of co-enabled transitions 4160 [2023-08-28 17:52:29,966 INFO L134 LiptonReduction]: Checked pairs total: 14088 [2023-08-28 17:52:29,966 INFO L136 LiptonReduction]: Total number of compositions: 64 [2023-08-28 17:52:29,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 17:52:29,983 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;@4ec5e6d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 17:52:29,984 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-08-28 17:52:29,986 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-08-28 17:52:29,986 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:52:29,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:29,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-28 17:52:29,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-28 17:52:29,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:29,991 INFO L85 PathProgramCache]: Analyzing trace with hash 513199, now seen corresponding path program 1 times [2023-08-28 17:52:29,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:29,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134619767] [2023-08-28 17:52:29,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:30,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:30,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:30,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:30,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134619767] [2023-08-28 17:52:30,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134619767] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:30,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:30,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-28 17:52:30,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560912896] [2023-08-28 17:52:30,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:30,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 17:52:30,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:30,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 17:52:30,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 17:52:30,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 182 [2023-08-28 17:52:30,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 115 flow. Second operand has 2 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 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) [2023-08-28 17:52:30,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:30,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 182 [2023-08-28 17:52:30,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:30,314 INFO L130 PetriNetUnfolder]: 408/835 cut-off events. [2023-08-28 17:52:30,314 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-08-28 17:52:30,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 835 events. 408/835 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3929 event pairs, 360 based on Foata normal form. 0/729 useless extension candidates. Maximal degree in co-relation 1460. Up to 696 conditions per place. [2023-08-28 17:52:30,322 INFO L137 encePairwiseOnDemand]: 166/182 looper letters, 29 selfloop transitions, 0 changer transitions 0/37 dead transitions. [2023-08-28 17:52:30,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 141 flow [2023-08-28 17:52:30,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 17:52:30,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 17:52:30,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 209 transitions. [2023-08-28 17:52:30,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5741758241758241 [2023-08-28 17:52:30,334 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 209 transitions. [2023-08-28 17:52:30,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 209 transitions. [2023-08-28 17:52:30,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:30,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 209 transitions. [2023-08-28 17:52:30,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 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) [2023-08-28 17:52:30,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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) [2023-08-28 17:52:30,345 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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) [2023-08-28 17:52:30,347 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 115 flow. Second operand 2 states and 209 transitions. [2023-08-28 17:52:30,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 141 flow [2023-08-28 17:52:30,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 136 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-28 17:52:30,351 INFO L231 Difference]: Finished difference. Result has 40 places, 37 transitions, 78 flow [2023-08-28 17:52:30,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=78, PETRI_PLACES=40, PETRI_TRANSITIONS=37} [2023-08-28 17:52:30,356 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -18 predicate places. [2023-08-28 17:52:30,356 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 37 transitions, 78 flow [2023-08-28 17:52:30,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 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) [2023-08-28 17:52:30,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:30,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:30,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 17:52:30,357 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-28 17:52:30,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:30,358 INFO L85 PathProgramCache]: Analyzing trace with hash -273937254, now seen corresponding path program 1 times [2023-08-28 17:52:30,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:30,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614333111] [2023-08-28 17:52:30,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:30,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:30,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:30,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:30,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614333111] [2023-08-28 17:52:30,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614333111] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:30,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:30,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:30,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909086831] [2023-08-28 17:52:30,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:30,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:30,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:30,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:30,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:30,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2023-08-28 17:52:30,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 37 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:30,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:30,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2023-08-28 17:52:30,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:30,609 INFO L130 PetriNetUnfolder]: 463/906 cut-off events. [2023-08-28 17:52:30,610 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-28 17:52:30,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1724 conditions, 906 events. 463/906 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4198 event pairs, 372 based on Foata normal form. 0/786 useless extension candidates. Maximal degree in co-relation 1721. Up to 736 conditions per place. [2023-08-28 17:52:30,615 INFO L137 encePairwiseOnDemand]: 177/182 looper letters, 42 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2023-08-28 17:52:30,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 202 flow [2023-08-28 17:52:30,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:30,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:30,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2023-08-28 17:52:30,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4926739926739927 [2023-08-28 17:52:30,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2023-08-28 17:52:30,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2023-08-28 17:52:30,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:30,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2023-08-28 17:52:30,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2023-08-28 17:52:30,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2023-08-28 17:52:30,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2023-08-28 17:52:30,631 INFO L175 Difference]: Start difference. First operand has 40 places, 37 transitions, 78 flow. Second operand 3 states and 269 transitions. [2023-08-28 17:52:30,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 202 flow [2023-08-28 17:52:30,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 52 transitions, 202 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 17:52:30,634 INFO L231 Difference]: Finished difference. Result has 43 places, 40 transitions, 104 flow [2023-08-28 17:52:30,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=43, PETRI_TRANSITIONS=40} [2023-08-28 17:52:30,635 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -15 predicate places. [2023-08-28 17:52:30,635 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 104 flow [2023-08-28 17:52:30,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:30,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:30,636 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:30,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 17:52:30,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-28 17:52:30,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:30,639 INFO L85 PathProgramCache]: Analyzing trace with hash 119486990, now seen corresponding path program 1 times [2023-08-28 17:52:30,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:30,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675608654] [2023-08-28 17:52:30,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:30,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:30,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:30,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:30,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675608654] [2023-08-28 17:52:30,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675608654] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:30,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:30,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:30,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529561414] [2023-08-28 17:52:30,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:30,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:30,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:30,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:30,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:30,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2023-08-28 17:52:30,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2023-08-28 17:52:30,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:30,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2023-08-28 17:52:30,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:30,901 INFO L130 PetriNetUnfolder]: 538/1007 cut-off events. [2023-08-28 17:52:30,901 INFO L131 PetriNetUnfolder]: For 88/94 co-relation queries the response was YES. [2023-08-28 17:52:30,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2130 conditions, 1007 events. 538/1007 cut-off events. For 88/94 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4509 event pairs, 383 based on Foata normal form. 0/897 useless extension candidates. Maximal degree in co-relation 2125. Up to 785 conditions per place. [2023-08-28 17:52:30,906 INFO L137 encePairwiseOnDemand]: 176/182 looper letters, 47 selfloop transitions, 7 changer transitions 0/59 dead transitions. [2023-08-28 17:52:30,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 59 transitions, 264 flow [2023-08-28 17:52:30,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:30,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:30,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2023-08-28 17:52:30,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4981684981684982 [2023-08-28 17:52:30,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 272 transitions. [2023-08-28 17:52:30,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 272 transitions. [2023-08-28 17:52:30,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:30,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 272 transitions. [2023-08-28 17:52:30,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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) [2023-08-28 17:52:30,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2023-08-28 17:52:30,912 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2023-08-28 17:52:30,912 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 104 flow. Second operand 3 states and 272 transitions. [2023-08-28 17:52:30,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 59 transitions, 264 flow [2023-08-28 17:52:30,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 59 transitions, 257 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 17:52:30,918 INFO L231 Difference]: Finished difference. Result has 46 places, 45 transitions, 156 flow [2023-08-28 17:52:30,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=46, PETRI_TRANSITIONS=45} [2023-08-28 17:52:30,919 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -12 predicate places. [2023-08-28 17:52:30,919 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 45 transitions, 156 flow [2023-08-28 17:52:30,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2023-08-28 17:52:30,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:30,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:30,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 17:52:30,921 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-28 17:52:30,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:30,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1260650243, now seen corresponding path program 1 times [2023-08-28 17:52:30,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:30,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888891798] [2023-08-28 17:52:30,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:30,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:30,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:30,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:30,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888891798] [2023-08-28 17:52:30,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888891798] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:30,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:30,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:30,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686280780] [2023-08-28 17:52:30,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:30,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:30,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:30,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:30,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:31,003 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2023-08-28 17:52:31,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 45 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2023-08-28 17:52:31,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:31,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2023-08-28 17:52:31,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:31,150 INFO L130 PetriNetUnfolder]: 614/1099 cut-off events. [2023-08-28 17:52:31,150 INFO L131 PetriNetUnfolder]: For 481/517 co-relation queries the response was YES. [2023-08-28 17:52:31,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2667 conditions, 1099 events. 614/1099 cut-off events. For 481/517 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4736 event pairs, 248 based on Foata normal form. 6/1043 useless extension candidates. Maximal degree in co-relation 2661. Up to 588 conditions per place. [2023-08-28 17:52:31,155 INFO L137 encePairwiseOnDemand]: 174/182 looper letters, 52 selfloop transitions, 7 changer transitions 14/77 dead transitions. [2023-08-28 17:52:31,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 77 transitions, 395 flow [2023-08-28 17:52:31,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:31,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:31,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2023-08-28 17:52:31,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5274725274725275 [2023-08-28 17:52:31,157 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2023-08-28 17:52:31,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2023-08-28 17:52:31,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:31,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2023-08-28 17:52:31,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2023-08-28 17:52:31,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2023-08-28 17:52:31,160 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2023-08-28 17:52:31,160 INFO L175 Difference]: Start difference. First operand has 46 places, 45 transitions, 156 flow. Second operand 3 states and 288 transitions. [2023-08-28 17:52:31,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 77 transitions, 395 flow [2023-08-28 17:52:31,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 77 transitions, 377 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:31,165 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 188 flow [2023-08-28 17:52:31,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2023-08-28 17:52:31,166 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -10 predicate places. [2023-08-28 17:52:31,166 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 188 flow [2023-08-28 17:52:31,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2023-08-28 17:52:31,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:31,167 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:31,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 17:52:31,167 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-28 17:52:31,167 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:31,167 INFO L85 PathProgramCache]: Analyzing trace with hash -650117324, now seen corresponding path program 1 times [2023-08-28 17:52:31,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:31,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379513037] [2023-08-28 17:52:31,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:31,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:31,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:31,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:31,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379513037] [2023-08-28 17:52:31,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379513037] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:31,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:31,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-28 17:52:31,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832979636] [2023-08-28 17:52:31,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:31,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 17:52:31,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:31,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 17:52:31,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-28 17:52:31,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 182 [2023-08-28 17:52:31,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2023-08-28 17:52:31,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:31,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 182 [2023-08-28 17:52:31,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:31,587 INFO L130 PetriNetUnfolder]: 651/1230 cut-off events. [2023-08-28 17:52:31,587 INFO L131 PetriNetUnfolder]: For 848/874 co-relation queries the response was YES. [2023-08-28 17:52:31,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2986 conditions, 1230 events. 651/1230 cut-off events. For 848/874 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 6158 event pairs, 106 based on Foata normal form. 0/1164 useless extension candidates. Maximal degree in co-relation 2979. Up to 627 conditions per place. [2023-08-28 17:52:31,592 INFO L137 encePairwiseOnDemand]: 173/182 looper letters, 59 selfloop transitions, 10 changer transitions 46/125 dead transitions. [2023-08-28 17:52:31,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 125 transitions, 635 flow [2023-08-28 17:52:31,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-28 17:52:31,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-28 17:52:31,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 891 transitions. [2023-08-28 17:52:31,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48956043956043954 [2023-08-28 17:52:31,595 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 891 transitions. [2023-08-28 17:52:31,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 891 transitions. [2023-08-28 17:52:31,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:31,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 891 transitions. [2023-08-28 17:52:31,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.1) internal successors, (891), 10 states have internal predecessors, (891), 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) [2023-08-28 17:52:31,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 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) [2023-08-28 17:52:31,602 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 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) [2023-08-28 17:52:31,602 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 188 flow. Second operand 10 states and 891 transitions. [2023-08-28 17:52:31,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 125 transitions, 635 flow [2023-08-28 17:52:31,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 125 transitions, 617 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:31,607 INFO L231 Difference]: Finished difference. Result has 63 places, 55 transitions, 260 flow [2023-08-28 17:52:31,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=260, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2023-08-28 17:52:31,608 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 5 predicate places. [2023-08-28 17:52:31,608 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 260 flow [2023-08-28 17:52:31,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2023-08-28 17:52:31,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:31,609 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:31,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 17:52:31,609 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-28 17:52:31,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:31,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1694585134, now seen corresponding path program 2 times [2023-08-28 17:52:31,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:31,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962657902] [2023-08-28 17:52:31,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:31,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:31,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:31,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:31,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962657902] [2023-08-28 17:52:31,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962657902] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:31,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:31,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-28 17:52:31,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667110697] [2023-08-28 17:52:31,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:31,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 17:52:31,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:31,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 17:52:31,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-28 17:52:31,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 182 [2023-08-28 17:52:31,683 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2023-08-28 17:52:31,683 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:31,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 182 [2023-08-28 17:52:31,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:31,941 INFO L130 PetriNetUnfolder]: 465/844 cut-off events. [2023-08-28 17:52:31,942 INFO L131 PetriNetUnfolder]: For 764/768 co-relation queries the response was YES. [2023-08-28 17:52:31,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2460 conditions, 844 events. 465/844 cut-off events. For 764/768 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3622 event pairs, 55 based on Foata normal form. 0/826 useless extension candidates. Maximal degree in co-relation 2445. Up to 380 conditions per place. [2023-08-28 17:52:31,945 INFO L137 encePairwiseOnDemand]: 173/182 looper letters, 0 selfloop transitions, 0 changer transitions 114/114 dead transitions. [2023-08-28 17:52:31,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 114 transitions, 745 flow [2023-08-28 17:52:31,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-28 17:52:31,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-28 17:52:31,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 798 transitions. [2023-08-28 17:52:31,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717 [2023-08-28 17:52:31,947 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 798 transitions. [2023-08-28 17:52:31,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 798 transitions. [2023-08-28 17:52:31,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:31,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 798 transitions. [2023-08-28 17:52:31,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.66666666666667) internal successors, (798), 9 states have internal predecessors, (798), 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) [2023-08-28 17:52:31,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2023-08-28 17:52:31,952 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2023-08-28 17:52:31,952 INFO L175 Difference]: Start difference. First operand has 63 places, 55 transitions, 260 flow. Second operand 9 states and 798 transitions. [2023-08-28 17:52:31,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 114 transitions, 745 flow [2023-08-28 17:52:31,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 114 transitions, 627 flow, removed 43 selfloop flow, removed 8 redundant places. [2023-08-28 17:52:31,958 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2023-08-28 17:52:31,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2023-08-28 17:52:31,959 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -2 predicate places. [2023-08-28 17:52:31,959 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2023-08-28 17:52:31,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2023-08-28 17:52:31,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2023-08-28 17:52:31,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2023-08-28 17:52:31,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2023-08-28 17:52:31,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2023-08-28 17:52:31,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2023-08-28 17:52:31,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2023-08-28 17:52:31,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2023-08-28 17:52:31,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2023-08-28 17:52:31,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2023-08-28 17:52:31,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2023-08-28 17:52:31,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2023-08-28 17:52:31,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2023-08-28 17:52:31,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2023-08-28 17:52:31,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2023-08-28 17:52:31,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2023-08-28 17:52:31,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2023-08-28 17:52:31,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2023-08-28 17:52:31,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2023-08-28 17:52:31,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2023-08-28 17:52:31,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2023-08-28 17:52:31,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2023-08-28 17:52:31,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 40 remaining) [2023-08-28 17:52:31,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2023-08-28 17:52:31,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2023-08-28 17:52:31,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2023-08-28 17:52:31,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2023-08-28 17:52:31,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2023-08-28 17:52:31,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2023-08-28 17:52:31,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2023-08-28 17:52:31,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2023-08-28 17:52:31,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2023-08-28 17:52:31,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2023-08-28 17:52:31,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2023-08-28 17:52:31,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2023-08-28 17:52:31,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2023-08-28 17:52:31,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2023-08-28 17:52:31,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2023-08-28 17:52:31,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2023-08-28 17:52:31,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2023-08-28 17:52:31,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2023-08-28 17:52:31,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 17:52:31,970 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-08-28 17:52:31,974 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-28 17:52:31,974 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 17:52:31,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 05:52:31 BasicIcfg [2023-08-28 17:52:31,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 17:52:31,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 17:52:31,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 17:52:31,978 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 17:52:31,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:28" (3/4) ... [2023-08-28 17:52:31,980 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-28 17:52:31,984 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2023-08-28 17:52:31,984 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2023-08-28 17:52:31,987 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-28 17:52:31,987 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-28 17:52:31,987 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-28 17:52:31,987 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-28 17:52:32,010 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-28 17:52:32,010 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 17:52:32,011 INFO L158 Benchmark]: Toolchain (without parser) took 5100.02ms. Allocated memory was 71.3MB in the beginning and 125.8MB in the end (delta: 54.5MB). Free memory was 47.0MB in the beginning and 75.9MB in the end (delta: -28.9MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-08-28 17:52:32,011 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 71.3MB. Free memory was 48.6MB in the beginning and 48.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:52:32,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.47ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 46.8MB in the beginning and 59.5MB in the end (delta: -12.7MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2023-08-28 17:52:32,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.55ms. Allocated memory is still 86.0MB. Free memory was 59.5MB in the beginning and 57.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:52:32,012 INFO L158 Benchmark]: Boogie Preprocessor took 60.52ms. Allocated memory is still 86.0MB. Free memory was 57.4MB in the beginning and 55.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:52:32,012 INFO L158 Benchmark]: RCFGBuilder took 541.60ms. Allocated memory is still 86.0MB. Free memory was 55.4MB in the beginning and 58.6MB in the end (delta: -3.2MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2023-08-28 17:52:32,013 INFO L158 Benchmark]: TraceAbstraction took 3903.63ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 57.8MB in the beginning and 79.1MB in the end (delta: -21.3MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-08-28 17:52:32,013 INFO L158 Benchmark]: Witness Printer took 32.72ms. Allocated memory is still 125.8MB. Free memory was 79.1MB in the beginning and 75.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-28 17:52:32,014 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 71.3MB. Free memory was 48.6MB in the beginning and 48.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.47ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 46.8MB in the beginning and 59.5MB in the end (delta: -12.7MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.55ms. Allocated memory is still 86.0MB. Free memory was 59.5MB in the beginning and 57.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.52ms. Allocated memory is still 86.0MB. Free memory was 57.4MB in the beginning and 55.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 541.60ms. Allocated memory is still 86.0MB. Free memory was 55.4MB in the beginning and 58.6MB in the end (delta: -3.2MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3903.63ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 57.8MB in the beginning and 79.1MB in the end (delta: -21.3MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Witness Printer took 32.72ms. Allocated memory is still 125.8MB. Free memory was 79.1MB in the beginning and 75.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 108 PlacesBefore, 58 PlacesAfterwards, 107 TransitionsBefore, 53 TransitionsAfterwards, 4160 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 4 ChoiceCompositions, 64 TotalNumberOfCompositions, 14088 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5642, independent: 5264, independent conditional: 0, independent unconditional: 5264, dependent: 378, dependent conditional: 0, dependent unconditional: 378, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1947, independent: 1898, independent conditional: 0, independent unconditional: 1898, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5642, independent: 3366, independent conditional: 0, independent unconditional: 3366, dependent: 329, dependent conditional: 0, dependent unconditional: 329, unknown: 1947, unknown conditional: 0, unknown unconditional: 1947] , Statistics on independence cache: Total cache size (in pairs): 394, Positive cache size: 360, Positive conditional cache size: 0, Positive unconditional cache size: 360, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 739]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 175 locations, 40 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 269 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 952 IncrementalHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 3 mSDtfsCounter, 952 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=260occurred in iteration=5, InterpolantAutomatonStates: 30, 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, 0.3s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-28 17:52:32,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE