./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/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_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/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_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/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 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 --- 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 17:43:08,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:43:08,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:43:08,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:43:08,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:43:08,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:43:08,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:43:08,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:43:08,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:43:08,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:43:08,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:43:08,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:43:08,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:43:08,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:43:08,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:43:08,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:43:08,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:43:08,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:43:08,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:43:08,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:43:08,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:43:08,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:43:08,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:43:08,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:43:08,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:43:08,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:43:08,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:43:08,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:43:08,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:43:08,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:43:08,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:43:08,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:43:08,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:43:08,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:43:08,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:43:08,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:43:08,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:43:08,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:43:08,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:43:08,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:43:08,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:43:08,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:43:08,473 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:43:08,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:43:08,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:43:08,474 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:43:08,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:43:08,475 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:43:08,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:43:08,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:43:08,476 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:43:08,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:43:08,477 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:43:08,477 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:43:08,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:43:08,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:43:08,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:43:08,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:43:08,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:43:08,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:43:08,479 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:43:08,479 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:43:08,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:43:08,479 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:43:08,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:43:08,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:43:08,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:43:08,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:43:08,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:43:08,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:43:08,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:43:08,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:43:08,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:43:08,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:43:08,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:43:08,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:43:08,482 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:43:08,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:43:08,483 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_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 [2022-11-25 17:43:08,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:43:08,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:43:08,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:43:08,875 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:43:08,875 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:43:08,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i [2022-11-25 17:43:12,005 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:43:12,309 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:43:12,312 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i [2022-11-25 17:43:12,334 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/bin/uautomizer-ZsLfNo2U6R/data/1dfb48f12/da0cfa6b60a8418eb7ce189750836e77/FLAG2491610f5 [2022-11-25 17:43:12,358 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/bin/uautomizer-ZsLfNo2U6R/data/1dfb48f12/da0cfa6b60a8418eb7ce189750836e77 [2022-11-25 17:43:12,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:43:12,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:43:12,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:43:12,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:43:12,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:43:12,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:43:12" (1/1) ... [2022-11-25 17:43:12,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12816494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12, skipping insertion in model container [2022-11-25 17:43:12,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:43:12" (1/1) ... [2022-11-25 17:43:12,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:43:12,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:43:12,857 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_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i[30176,30189] [2022-11-25 17:43:12,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:43:12,904 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:43:12,943 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_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i[30176,30189] [2022-11-25 17:43:12,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:43:12,995 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:43:12,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12 WrapperNode [2022-11-25 17:43:12,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:43:12,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:43:12,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:43:12,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:43:13,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12" (1/1) ... [2022-11-25 17:43:13,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12" (1/1) ... [2022-11-25 17:43:13,051 INFO L138 Inliner]: procedures = 172, calls = 43, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 237 [2022-11-25 17:43:13,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:43:13,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:43:13,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:43:13,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:43:13,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12" (1/1) ... [2022-11-25 17:43:13,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12" (1/1) ... [2022-11-25 17:43:13,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12" (1/1) ... [2022-11-25 17:43:13,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12" (1/1) ... [2022-11-25 17:43:13,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12" (1/1) ... [2022-11-25 17:43:13,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12" (1/1) ... [2022-11-25 17:43:13,085 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12" (1/1) ... [2022-11-25 17:43:13,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12" (1/1) ... [2022-11-25 17:43:13,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:43:13,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:43:13,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:43:13,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:43:13,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12" (1/1) ... [2022-11-25 17:43:13,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:43:13,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:43:13,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:43:13,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f00186-b426-4aed-a37e-9ef1fd9ca9e5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:43:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:43:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-25 17:43:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-25 17:43:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:43:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:43:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:43:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:43:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-25 17:43:13,218 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-25 17:43:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:43:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:43:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:43:13,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:43:13,220 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 17:43:13,399 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:43:13,402 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:43:13,957 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:43:13,972 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:43:13,972 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-11-25 17:43:13,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:43:13 BoogieIcfgContainer [2022-11-25 17:43:13,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:43:13,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:43:13,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:43:13,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:43:13,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:43:12" (1/3) ... [2022-11-25 17:43:13,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4899cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:43:13, skipping insertion in model container [2022-11-25 17:43:13,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:43:12" (2/3) ... [2022-11-25 17:43:13,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4899cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:43:13, skipping insertion in model container [2022-11-25 17:43:13,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:43:13" (3/3) ... [2022-11-25 17:43:13,985 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_03-munge_racing.i [2022-11-25 17:43:13,995 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:43:14,007 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:43:14,007 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-25 17:43:14,007 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:43:14,168 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-25 17:43:14,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 256 transitions, 534 flow [2022-11-25 17:43:14,495 INFO L130 PetriNetUnfolder]: 58/474 cut-off events. [2022-11-25 17:43:14,495 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-25 17:43:14,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 474 events. 58/474 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2336 event pairs, 0 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 257. Up to 8 conditions per place. [2022-11-25 17:43:14,517 INFO L82 GeneralOperation]: Start removeDead. Operand has 229 places, 256 transitions, 534 flow [2022-11-25 17:43:14,529 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 256 transitions, 534 flow [2022-11-25 17:43:14,534 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:43:14,555 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 256 transitions, 534 flow [2022-11-25 17:43:14,558 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 256 transitions, 534 flow [2022-11-25 17:43:14,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 256 transitions, 534 flow [2022-11-25 17:43:14,683 INFO L130 PetriNetUnfolder]: 58/474 cut-off events. [2022-11-25 17:43:14,684 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-25 17:43:14,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 474 events. 58/474 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2336 event pairs, 0 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 257. Up to 8 conditions per place. [2022-11-25 17:43:14,709 INFO L119 LiptonReduction]: Number of co-enabled transitions 29100 [2022-11-25 17:43:21,490 INFO L134 LiptonReduction]: Checked pairs total: 86756 [2022-11-25 17:43:21,492 INFO L136 LiptonReduction]: Total number of compositions: 209 [2022-11-25 17:43:21,534 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:43:21,546 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;@6842dcc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:43:21,547 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-25 17:43:21,552 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-11-25 17:43:21,552 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:43:21,552 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:43:21,554 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 17:43:21,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 17:43:21,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:43:21,565 INFO L85 PathProgramCache]: Analyzing trace with hash 31161903, now seen corresponding path program 1 times [2022-11-25 17:43:21,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:43:21,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342872282] [2022-11-25 17:43:21,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:43:21,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:43:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:21,886 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 17:43:21,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:43:21,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342872282] [2022-11-25 17:43:21,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342872282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:43:21,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:43:21,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:43:21,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142508030] [2022-11-25 17:43:21,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:43:21,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:43:21,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:43:21,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:43:21,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:43:21,955 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 465 [2022-11-25 17:43:21,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 109 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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 17:43:21,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:43:21,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 465 [2022-11-25 17:43:21,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:43:23,066 INFO L130 PetriNetUnfolder]: 4297/8875 cut-off events. [2022-11-25 17:43:23,066 INFO L131 PetriNetUnfolder]: For 130/130 co-relation queries the response was YES. [2022-11-25 17:43:23,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15688 conditions, 8875 events. 4297/8875 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 72213 event pairs, 1904 based on Foata normal form. 1280/8677 useless extension candidates. Maximal degree in co-relation 15017. Up to 6640 conditions per place. [2022-11-25 17:43:23,166 INFO L137 encePairwiseOnDemand]: 440/465 looper letters, 64 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2022-11-25 17:43:23,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 103 transitions, 360 flow [2022-11-25 17:43:23,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:43:23,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:43:23,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2022-11-25 17:43:23,188 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5397849462365591 [2022-11-25 17:43:23,189 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2022-11-25 17:43:23,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2022-11-25 17:43:23,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:43:23,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2022-11-25 17:43:23,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 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 17:43:23,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 17:43:23,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 465.0) internal successors, (1860), 4 states have internal predecessors, (1860), 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 17:43:23,218 INFO L175 Difference]: Start difference. First operand has 88 places, 109 transitions, 240 flow. Second operand 3 states and 753 transitions. [2022-11-25 17:43:23,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 103 transitions, 360 flow [2022-11-25 17:43:23,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 103 transitions, 360 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:43:23,229 INFO L231 Difference]: Finished difference. Result has 89 places, 87 transitions, 204 flow [2022-11-25 17:43:23,231 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=89, PETRI_TRANSITIONS=87} [2022-11-25 17:43:23,235 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2022-11-25 17:43:23,236 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 87 transitions, 204 flow [2022-11-25 17:43:23,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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 17:43:23,237 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:43:23,237 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-11-25 17:43:23,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:43:23,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 17:43:23,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:43:23,249 INFO L85 PathProgramCache]: Analyzing trace with hash -124889349, now seen corresponding path program 1 times [2022-11-25 17:43:23,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:43:23,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081145232] [2022-11-25 17:43:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:43:23,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:43:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:43:23,319 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:43:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:43:23,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:43:23,384 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:43:23,391 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2022-11-25 17:43:23,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-11-25 17:43:23,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-11-25 17:43:23,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-11-25 17:43:23,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-11-25 17:43:23,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-11-25 17:43:23,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-11-25 17:43:23,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-11-25 17:43:23,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 24 remaining) [2022-11-25 17:43:23,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-11-25 17:43:23,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2022-11-25 17:43:23,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2022-11-25 17:43:23,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-11-25 17:43:23,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-11-25 17:43:23,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2022-11-25 17:43:23,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2022-11-25 17:43:23,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-11-25 17:43:23,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-11-25 17:43:23,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-11-25 17:43:23,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-11-25 17:43:23,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-11-25 17:43:23,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-11-25 17:43:23,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-11-25 17:43:23,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-11-25 17:43:23,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:43:23,412 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:43:23,419 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 17:43:23,419 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 17:43:23,481 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-25 17:43:23,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 361 places, 412 transitions, 872 flow [2022-11-25 17:43:23,948 INFO L130 PetriNetUnfolder]: 197/1423 cut-off events. [2022-11-25 17:43:23,949 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-25 17:43:23,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1520 conditions, 1423 events. 197/1423 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9377 event pairs, 1 based on Foata normal form. 0/1167 useless extension candidates. Maximal degree in co-relation 857. Up to 32 conditions per place. [2022-11-25 17:43:23,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 361 places, 412 transitions, 872 flow [2022-11-25 17:43:24,023 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 361 places, 412 transitions, 872 flow [2022-11-25 17:43:24,023 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:43:24,024 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 361 places, 412 transitions, 872 flow [2022-11-25 17:43:24,024 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 361 places, 412 transitions, 872 flow [2022-11-25 17:43:24,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 361 places, 412 transitions, 872 flow [2022-11-25 17:43:24,411 INFO L130 PetriNetUnfolder]: 197/1423 cut-off events. [2022-11-25 17:43:24,411 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-25 17:43:24,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1520 conditions, 1423 events. 197/1423 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9377 event pairs, 1 based on Foata normal form. 0/1167 useless extension candidates. Maximal degree in co-relation 857. Up to 32 conditions per place. [2022-11-25 17:43:24,576 INFO L119 LiptonReduction]: Number of co-enabled transitions 106200 [2022-11-25 17:43:34,079 INFO L134 LiptonReduction]: Checked pairs total: 401509 [2022-11-25 17:43:34,080 INFO L136 LiptonReduction]: Total number of compositions: 334 [2022-11-25 17:43:34,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:43:34,089 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;@6842dcc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:43:34,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-11-25 17:43:34,092 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-11-25 17:43:34,093 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:43:34,093 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:43:34,093 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 17:43:34,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2022-11-25 17:43:34,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:43:34,095 INFO L85 PathProgramCache]: Analyzing trace with hash 58727680, now seen corresponding path program 1 times [2022-11-25 17:43:34,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:43:34,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389367744] [2022-11-25 17:43:34,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:43:34,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:43:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:43:34,220 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 17:43:34,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:43:34,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389367744] [2022-11-25 17:43:34,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389367744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:43:34,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:43:34,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:43:34,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844225028] [2022-11-25 17:43:34,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:43:34,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:43:34,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:43:34,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:43:34,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:43:34,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 344 out of 746 [2022-11-25 17:43:34,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 201 transitions, 450 flow. Second operand has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 3 states have internal predecessors, (1036), 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 17:43:34,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:43:34,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 344 of 746 [2022-11-25 17:43:34,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand