./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:11:20,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:11:20,565 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-19 05:11:20,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:11:20,571 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:11:20,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:11:20,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:11:20,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:11:20,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:11:20,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:11:20,601 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:11:20,602 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:11:20,602 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:11:20,603 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:11:20,603 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:11:20,604 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:11:20,604 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:11:20,605 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:11:20,605 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:11:20,606 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:11:20,606 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:11:20,608 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:11:20,609 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:11:20,609 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:11:20,610 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:11:20,610 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:11:20,611 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:11:20,611 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:11:20,612 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:11:20,612 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:11:20,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:11:20,614 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 05:11:20,614 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:11:20,614 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:11:20,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:11:20,615 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:11:20,615 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:11:20,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:11:20,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:11:20,616 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:11:20,616 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:11:20,616 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:11:20,616 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:11:20,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:11:20,617 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:11:20,617 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:11:20,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:11:20,618 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2023-11-19 05:11:20,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:11:21,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:11:21,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:11:21,013 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:11:21,014 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:11:21,015 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-19 05:11:24,204 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:11:24,705 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:11:24,709 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-19 05:11:24,743 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ/data/a956ce4bf/52f2c5d75d644dcf9ab7a2ed648bf5dd/FLAGb7141843c [2023-11-19 05:11:24,761 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ/data/a956ce4bf/52f2c5d75d644dcf9ab7a2ed648bf5dd [2023-11-19 05:11:24,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:11:24,771 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:11:24,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:11:24,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:11:24,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:11:24,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:11:24" (1/1) ... [2023-11-19 05:11:24,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24000c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:24, skipping insertion in model container [2023-11-19 05:11:24,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:11:24" (1/1) ... [2023-11-19 05:11:24,880 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:11:25,077 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:11:26,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:11:26,042 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:11:26,056 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:11:26,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:11:26,308 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:11:26,308 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:11:26,309 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:11:26,317 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:11:26,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:26 WrapperNode [2023-11-19 05:11:26,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:11:26,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:11:26,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:11:26,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:11:26,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:26" (1/1) ... [2023-11-19 05:11:26,368 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:26" (1/1) ... [2023-11-19 05:11:26,411 INFO L138 Inliner]: procedures = 468, calls = 49, calls flagged for inlining = 11, calls inlined = 14, statements flattened = 186 [2023-11-19 05:11:26,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:11:26,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:11:26,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:11:26,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:11:26,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:26" (1/1) ... [2023-11-19 05:11:26,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:26" (1/1) ... [2023-11-19 05:11:26,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:26" (1/1) ... [2023-11-19 05:11:26,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:26" (1/1) ... [2023-11-19 05:11:26,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:26" (1/1) ... [2023-11-19 05:11:26,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:26" (1/1) ... [2023-11-19 05:11:26,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:26" (1/1) ... [2023-11-19 05:11:26,491 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:26" (1/1) ... [2023-11-19 05:11:26,498 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:11:26,501 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:11:26,501 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:11:26,502 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:11:26,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:26" (1/1) ... [2023-11-19 05:11:26,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:11:26,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:11:26,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:11:26,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b9f8ed2-3f42-47cf-a9c3-68e82817bd2e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:11:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 05:11:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:11:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 05:11:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:11:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:11:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:11:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:11:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:11:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-19 05:11:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-19 05:11:26,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:11:26,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:11:26,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:11:26,580 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 05:11:26,875 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:11:26,877 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:11:27,264 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:11:27,347 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:11:27,347 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:11:27,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:11:27 BoogieIcfgContainer [2023-11-19 05:11:27,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:11:27,354 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:11:27,355 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:11:27,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:11:27,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:11:24" (1/3) ... [2023-11-19 05:11:27,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf1f91b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:11:27, skipping insertion in model container [2023-11-19 05:11:27,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:26" (2/3) ... [2023-11-19 05:11:27,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf1f91b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:11:27, skipping insertion in model container [2023-11-19 05:11:27,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:11:27" (3/3) ... [2023-11-19 05:11:27,367 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-11-19 05:11:27,375 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 05:11:27,384 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:11:27,384 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-19 05:11:27,384 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:11:27,480 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 05:11:27,535 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:11:27,559 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 255 transitions, 524 flow [2023-11-19 05:11:27,564 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 255 transitions, 524 flow [2023-11-19 05:11:27,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 255 transitions, 524 flow [2023-11-19 05:11:27,749 INFO L124 PetriNetUnfolderBase]: 14/343 cut-off events. [2023-11-19 05:11:27,750 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 05:11:27,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 343 events. 14/343 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 720 event pairs, 0 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 172. Up to 4 conditions per place. [2023-11-19 05:11:27,767 INFO L119 LiptonReduction]: Number of co-enabled transitions 7008