./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R --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 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 18:18:16,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:18:16,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:18:16,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:18:16,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:18:16,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:18:16,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:18:16,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:18:16,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:18:16,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:18:16,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:18:16,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:18:16,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:18:16,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:18:16,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:18:16,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:18:16,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:18:16,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:18:16,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:18:16,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:18:16,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:18:16,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:18:16,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:18:16,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:18:16,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:18:16,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:18:16,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:18:16,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:18:16,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:18:16,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:18:16,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:18:16,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:18:16,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:18:16,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:18:16,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:18:16,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:18:16,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:18:16,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:18:16,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:18:16,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:18:16,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:18:16,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 18:18:16,528 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:18:16,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:18:16,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:18:16,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:18:16,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:18:16,532 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:18:16,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:18:16,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:18:16,534 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:18:16,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:18:16,535 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:18:16,535 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:18:16,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:18:16,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:18:16,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:18:16,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:18:16,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:18:16,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:18:16,537 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 18:18:16,537 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:18:16,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:18:16,538 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:18:16,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:18:16,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:18:16,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:18:16,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:18:16,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:18:16,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:18:16,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:18:16,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:18:16,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:18:16,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:18:16,541 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:18:16,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:18:16,541 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:18:16,542 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:18:16,542 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 [2022-11-25 18:18:16,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:18:16,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:18:16,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:18:16,891 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:18:16,892 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:18:16,893 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread/queue_ok.i [2022-11-25 18:18:20,055 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:18:20,349 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:18:20,365 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/sv-benchmarks/c/pthread/queue_ok.i [2022-11-25 18:18:20,380 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R/data/dfc78711c/3c8c1fd3bb1545a9a0588308e97f1df8/FLAGf48caccc5 [2022-11-25 18:18:20,395 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R/data/dfc78711c/3c8c1fd3bb1545a9a0588308e97f1df8 [2022-11-25 18:18:20,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:18:20,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:18:20,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:18:20,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:18:20,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:18:20,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:18:20" (1/1) ... [2022-11-25 18:18:20,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3524f237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:20, skipping insertion in model container [2022-11-25 18:18:20,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:18:20" (1/1) ... [2022-11-25 18:18:20,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:18:20,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:18:21,119 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/sv-benchmarks/c/pthread/queue_ok.i[43266,43279] [2022-11-25 18:18:21,123 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/sv-benchmarks/c/pthread/queue_ok.i[43543,43556] [2022-11-25 18:18:21,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:18:21,142 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:18:21,213 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/sv-benchmarks/c/pthread/queue_ok.i[43266,43279] [2022-11-25 18:18:21,230 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/sv-benchmarks/c/pthread/queue_ok.i[43543,43556] [2022-11-25 18:18:21,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:18:21,305 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:18:21,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:21 WrapperNode [2022-11-25 18:18:21,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:18:21,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:18:21,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:18:21,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:18:21,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:21" (1/1) ... [2022-11-25 18:18:21,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:21" (1/1) ... [2022-11-25 18:18:21,396 INFO L138 Inliner]: procedures = 274, calls = 57, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 387 [2022-11-25 18:18:21,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:18:21,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:18:21,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:18:21,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:18:21,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:21" (1/1) ... [2022-11-25 18:18:21,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:21" (1/1) ... [2022-11-25 18:18:21,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:21" (1/1) ... [2022-11-25 18:18:21,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:21" (1/1) ... [2022-11-25 18:18:21,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:21" (1/1) ... [2022-11-25 18:18:21,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:21" (1/1) ... [2022-11-25 18:18:21,460 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:21" (1/1) ... [2022-11-25 18:18:21,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:21" (1/1) ... [2022-11-25 18:18:21,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:18:21,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:18:21,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:18:21,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:18:21,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:21" (1/1) ... [2022-11-25 18:18:21,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:18:21,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:18:21,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:18:21,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c94a7e32-ceb0-415a-9886-6b31ad01b992/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:18:21,586 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-25 18:18:21,586 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-25 18:18:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-25 18:18:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-25 18:18:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:18:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:18:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:18:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:18:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 18:18:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:18:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:18:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:18:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:18:21,592 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:18:21,834 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:18:21,836 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:18:22,707 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:18:22,719 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:18:22,719 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 18:18:22,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:18:22 BoogieIcfgContainer [2022-11-25 18:18:22,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:18:22,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:18:22,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:18:22,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:18:22,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:18:20" (1/3) ... [2022-11-25 18:18:22,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f698cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:18:22, skipping insertion in model container [2022-11-25 18:18:22,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:18:21" (2/3) ... [2022-11-25 18:18:22,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f698cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:18:22, skipping insertion in model container [2022-11-25 18:18:22,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:18:22" (3/3) ... [2022-11-25 18:18:22,731 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2022-11-25 18:18:22,741 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:18:22,753 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:18:22,753 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-11-25 18:18:22,753 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:18:22,966 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 18:18:23,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 447 transitions, 910 flow [2022-11-25 18:18:23,338 INFO L130 PetriNetUnfolder]: 13/445 cut-off events. [2022-11-25 18:18:23,338 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 18:18:23,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 445 events. 13/445 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 784 event pairs, 0 based on Foata normal form. 0/397 useless extension candidates. Maximal degree in co-relation 315. Up to 3 conditions per place. [2022-11-25 18:18:23,355 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 447 transitions, 910 flow [2022-11-25 18:18:23,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 429 places, 435 transitions, 879 flow [2022-11-25 18:18:23,373 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:18:23,402 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 429 places, 435 transitions, 879 flow [2022-11-25 18:18:23,404 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 429 places, 435 transitions, 879 flow [2022-11-25 18:18:23,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 435 transitions, 879 flow [2022-11-25 18:18:23,519 INFO L130 PetriNetUnfolder]: 13/435 cut-off events. [2022-11-25 18:18:23,519 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 18:18:23,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 435 events. 13/435 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 710 event pairs, 0 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 315. Up to 3 conditions per place. [2022-11-25 18:18:23,577 INFO L119 LiptonReduction]: Number of co-enabled transitions 53036 [2022-11-25 18:19:14,650 WARN L233 SmtUtils]: Spent 19.05s on a formula simplification. DAG size of input: 202 DAG size of output: 196 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 18:19:36,128 WARN L233 SmtUtils]: Spent 17.38s on a formula simplification. DAG size of input: 202 DAG size of output: 196 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 18:19:42,854 WARN L233 SmtUtils]: Spent 6.72s on a formula simplification that was a NOOP. DAG size: 192 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 18:20:16,703 WARN L233 SmtUtils]: Spent 33.48s on a formula simplification. DAG size of input: 214 DAG size of output: 209 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 18:20:37,687 WARN L233 SmtUtils]: Spent 20.98s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 18:21:20,962 WARN L233 SmtUtils]: Spent 43.27s on a formula simplification. DAG size of input: 217 DAG size of output: 212 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 18:21:45,797 WARN L233 SmtUtils]: Spent 24.83s on a formula simplification that was a NOOP. DAG size: 210 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 18:21:45,814 INFO L134 LiptonReduction]: Checked pairs total: 419781 [2022-11-25 18:21:45,814 INFO L136 LiptonReduction]: Total number of compositions: 300 [2022-11-25 18:21:45,836 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:21:45,842 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;@4492329, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:21:45,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-25 18:21:45,844 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 18:21:45,844 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:21:45,845 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:21:45,845 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 18:21:45,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 18:21:45,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:21:45,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1570, now seen corresponding path program 1 times [2022-11-25 18:21:45,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:21:45,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552469490] [2022-11-25 18:21:45,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:45,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:21:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:46,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:21:46,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:21:46,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552469490] [2022-11-25 18:21:46,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552469490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:21:46,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:21:46,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 18:21:46,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651374662] [2022-11-25 18:21:46,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:21:46,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:21:46,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:21:46,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:21:46,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:21:46,064 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 747 [2022-11-25 18:21:46,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 203 transitions, 415 flow. Second operand has 2 states, 2 states have (on average 436.5) internal successors, (873), 2 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:46,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:21:46,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 747 [2022-11-25 18:21:46,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:21:47,661 INFO L130 PetriNetUnfolder]: 2479/7772 cut-off events. [2022-11-25 18:21:47,661 INFO L131 PetriNetUnfolder]: For 116/166 co-relation queries the response was YES. [2022-11-25 18:21:47,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11842 conditions, 7772 events. 2479/7772 cut-off events. For 116/166 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 65301 event pairs, 2097 based on Foata normal form. 0/7215 useless extension candidates. Maximal degree in co-relation 11402. Up to 3987 conditions per place. [2022-11-25 18:21:47,726 INFO L137 encePairwiseOnDemand]: 740/747 looper letters, 65 selfloop transitions, 0 changer transitions 0/196 dead transitions. [2022-11-25 18:21:47,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 196 transitions, 531 flow [2022-11-25 18:21:47,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:21:47,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:21:47,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 944 transitions. [2022-11-25 18:21:47,749 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6318607764390897 [2022-11-25 18:21:47,750 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 944 transitions. [2022-11-25 18:21:47,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 944 transitions. [2022-11-25 18:21:47,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:21:47,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 944 transitions. [2022-11-25 18:21:47,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 472.0) internal successors, (944), 2 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:47,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 747.0) internal successors, (2241), 3 states have internal predecessors, (2241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:47,783 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 747.0) internal successors, (2241), 3 states have internal predecessors, (2241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:47,785 INFO L175 Difference]: Start difference. First operand has 203 places, 203 transitions, 415 flow. Second operand 2 states and 944 transitions. [2022-11-25 18:21:47,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 196 transitions, 531 flow [2022-11-25 18:21:47,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 196 transitions, 526 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 18:21:47,803 INFO L231 Difference]: Finished difference. Result has 194 places, 196 transitions, 396 flow [2022-11-25 18:21:47,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=747, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=396, PETRI_PLACES=194, PETRI_TRANSITIONS=196} [2022-11-25 18:21:47,815 INFO L288 CegarLoopForPetriNet]: 203 programPoint places, -9 predicate places. [2022-11-25 18:21:47,816 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 196 transitions, 396 flow [2022-11-25 18:21:47,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 436.5) internal successors, (873), 2 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:47,817 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:21:47,818 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:21:47,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:21:47,820 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 18:21:47,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:21:47,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1499681632, now seen corresponding path program 1 times [2022-11-25 18:21:47,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:21:47,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533552251] [2022-11-25 18:21:47,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:47,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:21:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:48,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:21:48,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:21:48,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533552251] [2022-11-25 18:21:48,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533552251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:21:48,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:21:48,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:21:48,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058279881] [2022-11-25 18:21:48,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:21:48,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:21:48,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:21:48,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:21:48,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:21:48,191 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 747 [2022-11-25 18:21:48,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 196 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 431.6666666666667) internal successors, (1295), 3 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:48,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:21:48,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 747 [2022-11-25 18:21:48,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:21:49,900 INFO L130 PetriNetUnfolder]: 2859/8607 cut-off events. [2022-11-25 18:21:49,900 INFO L131 PetriNetUnfolder]: For 20/113 co-relation queries the response was YES. [2022-11-25 18:21:49,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13351 conditions, 8607 events. 2859/8607 cut-off events. For 20/113 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 73929 event pairs, 543 based on Foata normal form. 1/7824 useless extension candidates. Maximal degree in co-relation 13348. Up to 3496 conditions per place. [2022-11-25 18:21:49,971 INFO L137 encePairwiseOnDemand]: 741/747 looper letters, 123 selfloop transitions, 5 changer transitions 0/256 dead transitions. [2022-11-25 18:21:49,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 256 transitions, 775 flow [2022-11-25 18:21:49,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:21:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:21:49,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1419 transitions. [2022-11-25 18:21:49,977 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6331994645247657 [2022-11-25 18:21:49,977 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1419 transitions. [2022-11-25 18:21:49,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1419 transitions. [2022-11-25 18:21:49,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:21:49,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1419 transitions. [2022-11-25 18:21:49,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 473.0) internal successors, (1419), 3 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:49,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 747.0) internal successors, (2988), 4 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:49,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 747.0) internal successors, (2988), 4 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:49,993 INFO L175 Difference]: Start difference. First operand has 194 places, 196 transitions, 396 flow. Second operand 3 states and 1419 transitions. [2022-11-25 18:21:49,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 256 transitions, 775 flow [2022-11-25 18:21:49,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 256 transitions, 775 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:21:50,000 INFO L231 Difference]: Finished difference. Result has 198 places, 200 transitions, 434 flow [2022-11-25 18:21:50,000 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=747, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=434, PETRI_PLACES=198, PETRI_TRANSITIONS=200} [2022-11-25 18:21:50,001 INFO L288 CegarLoopForPetriNet]: 203 programPoint places, -5 predicate places. [2022-11-25 18:21:50,002 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 200 transitions, 434 flow [2022-11-25 18:21:50,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 431.6666666666667) internal successors, (1295), 3 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:50,003 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:21:50,003 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:21:50,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:21:50,004 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 18:21:50,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:21:50,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1918665186, now seen corresponding path program 1 times [2022-11-25 18:21:50,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:21:50,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144605316] [2022-11-25 18:21:50,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:50,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:21:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:50,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:21:50,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:21:50,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144605316] [2022-11-25 18:21:50,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144605316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:21:50,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:21:50,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:21:50,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420798382] [2022-11-25 18:21:50,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:21:50,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:21:50,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:21:50,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:21:50,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:21:50,143 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 747 [2022-11-25 18:21:50,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 200 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:50,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:21:50,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 747 [2022-11-25 18:21:50,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:21:52,319 INFO L130 PetriNetUnfolder]: 3049/9738 cut-off events. [2022-11-25 18:21:52,319 INFO L131 PetriNetUnfolder]: For 413/552 co-relation queries the response was YES. [2022-11-25 18:21:52,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15192 conditions, 9738 events. 3049/9738 cut-off events. For 413/552 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 88358 event pairs, 696 based on Foata normal form. 57/8954 useless extension candidates. Maximal degree in co-relation 15187. Up to 3618 conditions per place. [2022-11-25 18:21:52,410 INFO L137 encePairwiseOnDemand]: 741/747 looper letters, 124 selfloop transitions, 5 changer transitions 0/258 dead transitions. [2022-11-25 18:21:52,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 258 transitions, 815 flow [2022-11-25 18:21:52,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:21:52,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:21:52,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1417 transitions. [2022-11-25 18:21:52,417 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6323070058009818 [2022-11-25 18:21:52,417 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1417 transitions. [2022-11-25 18:21:52,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1417 transitions. [2022-11-25 18:21:52,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:21:52,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1417 transitions. [2022-11-25 18:21:52,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:52,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 747.0) internal successors, (2988), 4 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:52,434 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 747.0) internal successors, (2988), 4 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:52,434 INFO L175 Difference]: Start difference. First operand has 198 places, 200 transitions, 434 flow. Second operand 3 states and 1417 transitions. [2022-11-25 18:21:52,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 258 transitions, 815 flow [2022-11-25 18:21:52,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 258 transitions, 803 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:21:52,445 INFO L231 Difference]: Finished difference. Result has 200 places, 204 transitions, 462 flow [2022-11-25 18:21:52,446 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=747, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=200, PETRI_TRANSITIONS=204} [2022-11-25 18:21:52,447 INFO L288 CegarLoopForPetriNet]: 203 programPoint places, -3 predicate places. [2022-11-25 18:21:52,448 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 204 transitions, 462 flow [2022-11-25 18:21:52,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:52,449 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:21:52,449 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:21:52,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:21:52,450 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 18:21:52,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:21:52,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1992270440, now seen corresponding path program 1 times [2022-11-25 18:21:52,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:21:52,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099264170] [2022-11-25 18:21:52,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:52,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:21:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:52,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:21:52,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:21:52,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099264170] [2022-11-25 18:21:52,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099264170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:21:52,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:21:52,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:21:52,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840398221] [2022-11-25 18:21:52,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:21:52,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:21:52,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:21:52,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:21:52,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:21:52,671 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 747 [2022-11-25 18:21:52,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 204 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:52,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:21:52,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 747 [2022-11-25 18:21:52,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:21:55,663 INFO L130 PetriNetUnfolder]: 4580/15205 cut-off events. [2022-11-25 18:21:55,663 INFO L131 PetriNetUnfolder]: For 861/1103 co-relation queries the response was YES. [2022-11-25 18:21:55,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23687 conditions, 15205 events. 4580/15205 cut-off events. For 861/1103 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 144574 event pairs, 2515 based on Foata normal form. 55/14266 useless extension candidates. Maximal degree in co-relation 23681. Up to 4761 conditions per place. [2022-11-25 18:21:55,789 INFO L137 encePairwiseOnDemand]: 744/747 looper letters, 120 selfloop transitions, 2 changer transitions 0/256 dead transitions. [2022-11-25 18:21:55,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 256 transitions, 824 flow [2022-11-25 18:21:55,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:21:55,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:21:55,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1414 transitions. [2022-11-25 18:21:55,795 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6309683177153057 [2022-11-25 18:21:55,795 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1414 transitions. [2022-11-25 18:21:55,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1414 transitions. [2022-11-25 18:21:55,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:21:55,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1414 transitions. [2022-11-25 18:21:55,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:55,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 747.0) internal successors, (2988), 4 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:55,810 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 747.0) internal successors, (2988), 4 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:55,810 INFO L175 Difference]: Start difference. First operand has 200 places, 204 transitions, 462 flow. Second operand 3 states and 1414 transitions. [2022-11-25 18:21:55,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 256 transitions, 824 flow [2022-11-25 18:21:55,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 256 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:21:55,820 INFO L231 Difference]: Finished difference. Result has 201 places, 205 transitions, 464 flow [2022-11-25 18:21:55,821 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=747, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=464, PETRI_PLACES=201, PETRI_TRANSITIONS=205} [2022-11-25 18:21:55,822 INFO L288 CegarLoopForPetriNet]: 203 programPoint places, -2 predicate places. [2022-11-25 18:21:55,822 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 205 transitions, 464 flow [2022-11-25 18:21:55,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:55,823 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:21:55,823 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:21:55,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:21:55,824 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 18:21:55,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:21:55,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1024182960, now seen corresponding path program 1 times [2022-11-25 18:21:55,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:21:55,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240078470] [2022-11-25 18:21:55,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:55,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:21:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:56,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:21:56,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:21:56,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240078470] [2022-11-25 18:21:56,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240078470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:21:56,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:21:56,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:21:56,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377195035] [2022-11-25 18:21:56,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:21:56,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:21:56,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:21:56,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:21:56,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:21:57,852 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 747 [2022-11-25 18:21:57,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 205 transitions, 464 flow. Second operand has 6 states, 6 states have (on average 384.6666666666667) internal successors, (2308), 6 states have internal predecessors, (2308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:57,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:21:57,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 747 [2022-11-25 18:21:57,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:22:17,244 INFO L130 PetriNetUnfolder]: 81273/148789 cut-off events. [2022-11-25 18:22:17,244 INFO L131 PetriNetUnfolder]: For 7386/9331 co-relation queries the response was YES. [2022-11-25 18:22:17,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281625 conditions, 148789 events. 81273/148789 cut-off events. For 7386/9331 co-relation queries the response was YES. Maximal size of possible extension queue 1781. Compared 1428053 event pairs, 30046 based on Foata normal form. 468/139702 useless extension candidates. Maximal degree in co-relation 281618. Up to 83696 conditions per place. [2022-11-25 18:22:18,192 INFO L137 encePairwiseOnDemand]: 709/747 looper letters, 346 selfloop transitions, 133 changer transitions 0/579 dead transitions. [2022-11-25 18:22:18,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 579 transitions, 2299 flow [2022-11-25 18:22:18,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:22:18,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 18:22:18,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2748 transitions. [2022-11-25 18:22:18,202 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6131191432396251 [2022-11-25 18:22:18,202 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2748 transitions. [2022-11-25 18:22:18,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2748 transitions. [2022-11-25 18:22:18,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:22:18,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2748 transitions. [2022-11-25 18:22:18,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 458.0) internal successors, (2748), 6 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:22:18,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 747.0) internal successors, (5229), 7 states have internal predecessors, (5229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:22:18,228 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 747.0) internal successors, (5229), 7 states have internal predecessors, (5229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:22:18,228 INFO L175 Difference]: Start difference. First operand has 201 places, 205 transitions, 464 flow. Second operand 6 states and 2748 transitions. [2022-11-25 18:22:18,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 579 transitions, 2299 flow [2022-11-25 18:22:18,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 579 transitions, 2289 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:22:18,268 INFO L231 Difference]: Finished difference. Result has 210 places, 337 transitions, 1332 flow [2022-11-25 18:22:18,269 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=747, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1332, PETRI_PLACES=210, PETRI_TRANSITIONS=337} [2022-11-25 18:22:18,271 INFO L288 CegarLoopForPetriNet]: 203 programPoint places, 7 predicate places. [2022-11-25 18:22:18,272 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 337 transitions, 1332 flow [2022-11-25 18:22:18,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 384.6666666666667) internal successors, (2308), 6 states have internal predecessors, (2308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:22:18,274 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:22:18,274 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:22:18,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:22:18,275 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-25 18:22:18,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:22:18,275 INFO L85 PathProgramCache]: Analyzing trace with hash -135006055, now seen corresponding path program 1 times [2022-11-25 18:22:18,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:22:18,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656988511] [2022-11-25 18:22:18,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:22:18,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:22:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:22:18,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:22:18,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:22:18,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656988511] [2022-11-25 18:22:18,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656988511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:22:18,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:22:18,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:22:18,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509437930] [2022-11-25 18:22:18,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:22:18,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:22:18,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:22:18,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:22:18,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:22:18,407 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 747 [2022-11-25 18:22:18,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 337 transitions, 1332 flow. Second operand has 3 states, 3 states have (on average 435.0) internal successors, (1305), 3 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:22:18,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:22:18,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 747 [2022-11-25 18:22:18,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand