./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok_longer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8 --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 f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a --- 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-e04fb08 [2022-11-16 12:20:28,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:20:28,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:20:28,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:20:28,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:20:28,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:20:28,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:20:28,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:20:28,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:20:28,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:20:28,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:20:28,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:20:28,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:20:28,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:20:28,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:20:28,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:20:28,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:20:28,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:20:28,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:20:28,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:20:28,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:20:28,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:20:28,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:20:28,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:20:28,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:20:28,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:20:28,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:20:28,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:20:28,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:20:28,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:20:28,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:20:28,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:20:28,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:20:28,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:20:28,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:20:28,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:20:28,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:20:28,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:20:28,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:20:28,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:20:28,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:20:28,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:20:28,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:20:28,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:20:28,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:20:28,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:20:28,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:20:28,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:20:28,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:20:28,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:20:28,330 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:20:28,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:20:28,331 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:20:28,331 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:20:28,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:20:28,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:20:28,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:20:28,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:20:28,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:20:28,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:20:28,332 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:20:28,333 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:20:28,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:20:28,333 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:20:28,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:20:28,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:20:28,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:20:28,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:20:28,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:20:28,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:20:28,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:20:28,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:20:28,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:20:28,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:20:28,337 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:20:28,337 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:20:28,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:20:28,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a [2022-11-16 12:20:28,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:20:28,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:20:28,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:20:28,654 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:20:28,655 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:20:28,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread/queue_ok_longer.i [2022-11-16 12:20:28,748 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/data/dbdf4275e/21387232a34e4dc6ade9208f0d3e033a/FLAG21ec48937 [2022-11-16 12:20:29,303 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:20:29,303 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/sv-benchmarks/c/pthread/queue_ok_longer.i [2022-11-16 12:20:29,327 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/data/dbdf4275e/21387232a34e4dc6ade9208f0d3e033a/FLAG21ec48937 [2022-11-16 12:20:29,704 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/data/dbdf4275e/21387232a34e4dc6ade9208f0d3e033a [2022-11-16 12:20:29,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:20:29,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:20:29,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:20:29,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:20:29,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:20:29,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:29" (1/1) ... [2022-11-16 12:20:29,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf27b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:29, skipping insertion in model container [2022-11-16 12:20:29,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:29" (1/1) ... [2022-11-16 12:20:29,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:20:29,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:20:30,341 WARN L229 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_9803f95c-a804-4a61-b25f-c9d90e3c28ca/sv-benchmarks/c/pthread/queue_ok_longer.i[43272,43285] [2022-11-16 12:20:30,344 WARN L229 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_9803f95c-a804-4a61-b25f-c9d90e3c28ca/sv-benchmarks/c/pthread/queue_ok_longer.i[43545,43558] [2022-11-16 12:20:30,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:20:30,360 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:20:30,460 WARN L229 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_9803f95c-a804-4a61-b25f-c9d90e3c28ca/sv-benchmarks/c/pthread/queue_ok_longer.i[43272,43285] [2022-11-16 12:20:30,476 WARN L229 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_9803f95c-a804-4a61-b25f-c9d90e3c28ca/sv-benchmarks/c/pthread/queue_ok_longer.i[43545,43558] [2022-11-16 12:20:30,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:20:30,553 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:20:30,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:30 WrapperNode [2022-11-16 12:20:30,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:20:30,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:20:30,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:20:30,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:20:30,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:30" (1/1) ... [2022-11-16 12:20:30,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:30" (1/1) ... [2022-11-16 12:20:30,668 INFO L138 Inliner]: procedures = 274, calls = 59, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 389 [2022-11-16 12:20:30,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:20:30,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:20:30,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:20:30,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:20:30,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:30" (1/1) ... [2022-11-16 12:20:30,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:30" (1/1) ... [2022-11-16 12:20:30,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:30" (1/1) ... [2022-11-16 12:20:30,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:30" (1/1) ... [2022-11-16 12:20:30,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:30" (1/1) ... [2022-11-16 12:20:30,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:30" (1/1) ... [2022-11-16 12:20:30,723 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:30" (1/1) ... [2022-11-16 12:20:30,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:30" (1/1) ... [2022-11-16 12:20:30,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:20:30,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:20:30,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:20:30,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:20:30,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:30" (1/1) ... [2022-11-16 12:20:30,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:20:30,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:20:30,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:20:30,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9803f95c-a804-4a61-b25f-c9d90e3c28ca/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:20:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-16 12:20:30,826 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-16 12:20:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-16 12:20:30,826 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-16 12:20:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:20:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:20:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:20:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:20:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:20:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:20:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:20:30,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:20:30,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:20:30,829 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:20:31,042 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:20:31,044 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:20:31,805 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:20:31,815 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:20:31,815 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:20:31,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:31 BoogieIcfgContainer [2022-11-16 12:20:31,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:20:31,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:20:31,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:20:31,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:20:31,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:20:29" (1/3) ... [2022-11-16 12:20:31,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7650d6ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:31, skipping insertion in model container [2022-11-16 12:20:31,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:30" (2/3) ... [2022-11-16 12:20:31,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7650d6ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:31, skipping insertion in model container [2022-11-16 12:20:31,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:31" (3/3) ... [2022-11-16 12:20:31,876 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longer.i [2022-11-16 12:20:31,886 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:20:31,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:20:31,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-11-16 12:20:31,897 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:20:32,117 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:20:32,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 443 places, 449 transitions, 914 flow [2022-11-16 12:20:32,483 INFO L130 PetriNetUnfolder]: 13/447 cut-off events. [2022-11-16 12:20:32,483 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:20:32,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 447 events. 13/447 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 785 event pairs, 0 based on Foata normal form. 0/399 useless extension candidates. Maximal degree in co-relation 315. Up to 3 conditions per place. [2022-11-16 12:20:32,499 INFO L82 GeneralOperation]: Start removeDead. Operand has 443 places, 449 transitions, 914 flow [2022-11-16 12:20:32,512 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 431 places, 437 transitions, 883 flow [2022-11-16 12:20:32,534 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:20:32,541 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;@470aa169, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:20:32,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-16 12:20:32,548 INFO L130 PetriNetUnfolder]: 0/34 cut-off events. [2022-11-16 12:20:32,549 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:20:32,549 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:32,550 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:32,551 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-16 12:20:32,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:32,559 INFO L85 PathProgramCache]: Analyzing trace with hash -993445977, now seen corresponding path program 1 times [2022-11-16 12:20:32,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:32,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487324188] [2022-11-16 12:20:32,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:32,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:32,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:32,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:32,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487324188] [2022-11-16 12:20:32,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487324188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:32,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:32,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:32,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854632116] [2022-11-16 12:20:32,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:32,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:32,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:32,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:32,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:32,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 449 [2022-11-16 12:20:32,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 437 transitions, 883 flow. Second operand has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2022-11-16 12:20:32,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:32,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 449 [2022-11-16 12:20:32,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:33,223 INFO L130 PetriNetUnfolder]: 42/754 cut-off events. [2022-11-16 12:20:33,223 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-16 12:20:33,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 849 conditions, 754 events. 42/754 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2899 event pairs, 27 based on Foata normal form. 10/668 useless extension candidates. Maximal degree in co-relation 687. Up to 70 conditions per place. [2022-11-16 12:20:33,238 INFO L137 encePairwiseOnDemand]: 442/449 looper letters, 15 selfloop transitions, 2 changer transitions 0/428 dead transitions. [2022-11-16 12:20:33,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 428 transitions, 899 flow [2022-11-16 12:20:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:33,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:33,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1291 transitions. [2022-11-16 12:20:33,256 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9584261321455085 [2022-11-16 12:20:33,257 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1291 transitions. [2022-11-16 12:20:33,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1291 transitions. [2022-11-16 12:20:33,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:33,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1291 transitions. [2022-11-16 12:20:33,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2022-11-16 12:20:33,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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) [2022-11-16 12:20:33,281 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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) [2022-11-16 12:20:33,283 INFO L175 Difference]: Start difference. First operand has 431 places, 437 transitions, 883 flow. Second operand 3 states and 1291 transitions. [2022-11-16 12:20:33,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 428 transitions, 899 flow [2022-11-16 12:20:33,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 428 transitions, 894 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:20:33,299 INFO L231 Difference]: Finished difference. Result has 425 places, 428 transitions, 864 flow [2022-11-16 12:20:33,302 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=864, PETRI_PLACES=425, PETRI_TRANSITIONS=428} [2022-11-16 12:20:33,305 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -6 predicate places. [2022-11-16 12:20:33,306 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 428 transitions, 864 flow [2022-11-16 12:20:33,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2022-11-16 12:20:33,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:33,307 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:33,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:20:33,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-16 12:20:33,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:33,308 INFO L85 PathProgramCache]: Analyzing trace with hash -41684230, now seen corresponding path program 1 times [2022-11-16 12:20:33,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:33,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635570223] [2022-11-16 12:20:33,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:33,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:33,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:33,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:33,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635570223] [2022-11-16 12:20:33,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635570223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:33,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:33,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:33,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190874215] [2022-11-16 12:20:33,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:33,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:33,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:33,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:33,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:33,443 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 449 [2022-11-16 12:20:33,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 428 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2022-11-16 12:20:33,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:33,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 449 [2022-11-16 12:20:33,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:33,718 INFO L130 PetriNetUnfolder]: 53/835 cut-off events. [2022-11-16 12:20:33,718 INFO L131 PetriNetUnfolder]: For 14/25 co-relation queries the response was YES. [2022-11-16 12:20:33,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 835 events. 53/835 cut-off events. For 14/25 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3245 event pairs, 27 based on Foata normal form. 0/729 useless extension candidates. Maximal degree in co-relation 885. Up to 77 conditions per place. [2022-11-16 12:20:33,730 INFO L137 encePairwiseOnDemand]: 446/449 looper letters, 15 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2022-11-16 12:20:33,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 427 transitions, 896 flow [2022-11-16 12:20:33,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:33,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:33,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1287 transitions. [2022-11-16 12:20:33,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.955456570155902 [2022-11-16 12:20:33,734 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1287 transitions. [2022-11-16 12:20:33,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1287 transitions. [2022-11-16 12:20:33,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:33,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1287 transitions. [2022-11-16 12:20:33,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.0) internal successors, (1287), 3 states have internal predecessors, (1287), 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) [2022-11-16 12:20:33,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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) [2022-11-16 12:20:33,743 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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) [2022-11-16 12:20:33,744 INFO L175 Difference]: Start difference. First operand has 425 places, 428 transitions, 864 flow. Second operand 3 states and 1287 transitions. [2022-11-16 12:20:33,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 427 transitions, 896 flow [2022-11-16 12:20:33,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 427 transitions, 892 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:33,754 INFO L231 Difference]: Finished difference. Result has 424 places, 427 transitions, 862 flow [2022-11-16 12:20:33,755 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=424, PETRI_TRANSITIONS=427} [2022-11-16 12:20:33,756 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -7 predicate places. [2022-11-16 12:20:33,756 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 427 transitions, 862 flow [2022-11-16 12:20:33,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2022-11-16 12:20:33,758 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:33,758 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:33,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:20:33,759 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-16 12:20:33,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:33,759 INFO L85 PathProgramCache]: Analyzing trace with hash 444774095, now seen corresponding path program 1 times [2022-11-16 12:20:33,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:33,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963546261] [2022-11-16 12:20:33,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:33,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:34,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:34,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:34,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963546261] [2022-11-16 12:20:34,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963546261] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:34,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:34,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:20:34,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452850363] [2022-11-16 12:20:34,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:34,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:20:34,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:34,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:20:34,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:34,353 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 449 [2022-11-16 12:20:34,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 427 transitions, 862 flow. Second operand has 6 states, 6 states have (on average 270.5) internal successors, (1623), 6 states have internal predecessors, (1623), 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) [2022-11-16 12:20:34,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:34,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 449 [2022-11-16 12:20:34,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:57,442 INFO L130 PetriNetUnfolder]: 49837/114533 cut-off events. [2022-11-16 12:20:57,442 INFO L131 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2022-11-16 12:20:57,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190081 conditions, 114533 events. 49837/114533 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 1053. Compared 1230938 event pairs, 47568 based on Foata normal form. 0/98421 useless extension candidates. Maximal degree in co-relation 190035. Up to 75428 conditions per place. [2022-11-16 12:20:58,532 INFO L137 encePairwiseOnDemand]: 443/449 looper letters, 166 selfloop transitions, 5 changer transitions 0/426 dead transitions. [2022-11-16 12:20:58,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 426 transitions, 1202 flow [2022-11-16 12:20:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:20:58,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:20:58,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1786 transitions. [2022-11-16 12:20:58,539 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6629547141796585 [2022-11-16 12:20:58,540 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1786 transitions. [2022-11-16 12:20:58,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1786 transitions. [2022-11-16 12:20:58,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:58,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1786 transitions. [2022-11-16 12:20:58,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 297.6666666666667) internal successors, (1786), 6 states have internal predecessors, (1786), 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) [2022-11-16 12:20:58,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 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) [2022-11-16 12:20:58,558 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 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) [2022-11-16 12:20:58,559 INFO L175 Difference]: Start difference. First operand has 424 places, 427 transitions, 862 flow. Second operand 6 states and 1786 transitions. [2022-11-16 12:20:58,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 426 transitions, 1202 flow [2022-11-16 12:20:58,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 426 transitions, 1198 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:58,570 INFO L231 Difference]: Finished difference. Result has 426 places, 426 transitions, 866 flow [2022-11-16 12:20:58,571 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=866, PETRI_PLACES=426, PETRI_TRANSITIONS=426} [2022-11-16 12:20:58,574 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -5 predicate places. [2022-11-16 12:20:58,574 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 426 transitions, 866 flow [2022-11-16 12:20:58,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.5) internal successors, (1623), 6 states have internal predecessors, (1623), 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) [2022-11-16 12:20:58,576 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:58,576 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:58,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:20:58,576 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-16 12:20:58,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:58,577 INFO L85 PathProgramCache]: Analyzing trace with hash -940177759, now seen corresponding path program 1 times [2022-11-16 12:20:58,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:58,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987379731] [2022-11-16 12:20:58,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:58,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:59,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:59,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:59,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987379731] [2022-11-16 12:20:59,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987379731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:59,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:59,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:20:59,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992546008] [2022-11-16 12:20:59,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:59,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:20:59,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:59,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:20:59,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:59,181 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 449 [2022-11-16 12:20:59,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 426 transitions, 866 flow. Second operand has 6 states, 6 states have (on average 271.5) internal successors, (1629), 6 states have internal predecessors, (1629), 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) [2022-11-16 12:20:59,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:59,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 449 [2022-11-16 12:20:59,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand