./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1458378674bd140ace04512980940eeb05aa22f50528a181d147a292aa3349d2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:52:26,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:52:26,404 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:52:26,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:52:26,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:52:26,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:52:26,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:52:26,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:52:26,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:52:26,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:52:26,482 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:52:26,483 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:52:26,485 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:52:26,490 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:52:26,491 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:52:26,491 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:52:26,492 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:52:26,493 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:52:26,493 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:52:26,494 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:52:26,494 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:52:26,495 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:52:26,496 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:52:26,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:52:26,497 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:52:26,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:52:26,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:52:26,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:52:26,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:52:26,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:52:26,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:52:26,500 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:52:26,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:52:26,506 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:52:26,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:52:26,506 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:52:26,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:52:26,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:26,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:52:26,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:52:26,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:52:26,509 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:52:26,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:52:26,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:52:26,509 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:52:26,510 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:52:26,510 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:52:26,510 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_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1458378674bd140ace04512980940eeb05aa22f50528a181d147a292aa3349d2 [2023-11-24 23:52:26,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:52:26,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:52:26,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:52:26,872 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:52:26,873 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:52:26,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2023-11-24 23:52:29,920 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:52:30,207 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:52:30,208 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2023-11-24 23:52:30,227 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/data/7ea3a7f43/d9416b62617b44a092d148e97d2f0cc2/FLAG9b1b7fd68 [2023-11-24 23:52:30,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/data/7ea3a7f43/d9416b62617b44a092d148e97d2f0cc2 [2023-11-24 23:52:30,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:52:30,246 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:52:30,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:30,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:52:30,256 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:52:30,257 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:30" (1/1) ... [2023-11-24 23:52:30,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60931aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:30, skipping insertion in model container [2023-11-24 23:52:30,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:30" (1/1) ... [2023-11-24 23:52:30,335 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:52:30,669 WARN L240 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_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2023-11-24 23:52:30,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:52:30,856 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:52:30,902 WARN L240 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_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2023-11-24 23:52:30,951 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:52:30,997 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:52:30,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:30 WrapperNode [2023-11-24 23:52:30,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:30,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:52:30,999 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:52:30,999 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:52:31,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:30" (1/1) ... [2023-11-24 23:52:31,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:30" (1/1) ... [2023-11-24 23:52:31,176 INFO L138 Inliner]: procedures = 145, calls = 279, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 557 [2023-11-24 23:52:31,176 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:52:31,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:52:31,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:52:31,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:52:31,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:30" (1/1) ... [2023-11-24 23:52:31,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:30" (1/1) ... [2023-11-24 23:52:31,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:30" (1/1) ... [2023-11-24 23:52:31,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:30" (1/1) ... [2023-11-24 23:52:31,242 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:30" (1/1) ... [2023-11-24 23:52:31,252 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:30" (1/1) ... [2023-11-24 23:52:31,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:30" (1/1) ... [2023-11-24 23:52:31,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:30" (1/1) ... [2023-11-24 23:52:31,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:52:31,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:52:31,291 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:52:31,295 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:52:31,296 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:30" (1/1) ... [2023-11-24 23:52:31,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:31,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:31,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:52:31,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:52:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:52:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:52:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:52:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:52:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:52:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:52:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:52:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-24 23:52:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-24 23:52:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:52:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-24 23:52:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-24 23:52:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-24 23:52:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-24 23:52:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:52:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-24 23:52:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-24 23:52:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:52:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assume [2023-11-24 23:52:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assume [2023-11-24 23:52:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:52:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:52:31,574 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:52:31,577 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:52:32,162 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-24 23:52:32,162 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);reader_#res#1.base, reader_#res#1.offset := 0, 0; [2023-11-24 23:52:34,528 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:52:34,761 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc __VERIFIER_atomic_take_write_lock_#t~mem21#1;havoc __VERIFIER_atomic_take_write_lock_#t~mem22#1;havoc __VERIFIER_atomic_take_write_lock_#t~short23#1;call write~int(1, ~#w~0.base, ~#w~0.offset + 4 * (if ~__CS_round~0 % 256 % 4294967296 <= 2147483647 then ~__CS_round~0 % 256 % 4294967296 else ~__CS_round~0 % 256 % 4294967296 - 4294967296), 4);havoc __VERIFIER_atomic_take_write_lock_#t~mem21#1, __VERIFIER_atomic_take_write_lock_#t~mem22#1, __VERIFIER_atomic_take_write_lock_#t~short23#1;assume { :end_inline___VERIFIER_atomic_take_write_lock } true;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-24 23:52:34,770 INFO L158 Benchmark]: Toolchain (without parser) took 4522.30ms. Allocated memory is still 167.8MB. Free memory was 135.0MB in the beginning and 116.1MB in the end (delta: 18.9MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. [2023-11-24 23:52:34,770 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:52:34,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 750.80ms. Allocated memory is still 167.8MB. Free memory was 134.5MB in the beginning and 107.8MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-24 23:52:34,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 177.77ms. Allocated memory is still 167.8MB. Free memory was 107.8MB in the beginning and 132.9MB in the end (delta: -25.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 23:52:34,773 INFO L158 Benchmark]: Boogie Preprocessor took 110.79ms. Allocated memory is still 167.8MB. Free memory was 132.9MB in the beginning and 128.0MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 23:52:34,774 INFO L158 Benchmark]: RCFGBuilder took 3477.26ms. Allocated memory is still 167.8MB. Free memory was 128.0MB in the beginning and 116.1MB in the end (delta: 11.9MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2023-11-24 23:52:34,778 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 750.80ms. Allocated memory is still 167.8MB. Free memory was 134.5MB in the beginning and 107.8MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 177.77ms. Allocated memory is still 167.8MB. Free memory was 107.8MB in the beginning and 132.9MB in the end (delta: -25.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 110.79ms. Allocated memory is still 167.8MB. Free memory was 132.9MB in the beginning and 128.0MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 3477.26ms. Allocated memory is still 167.8MB. Free memory was 128.0MB in the beginning and 116.1MB in the end (delta: 11.9MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc __VERIFIER_atomic_take_write_lock_#t~mem21#1;havoc __VERIFIER_atomic_take_write_lock_#t~mem22#1;havoc __VERIFIER_atomic_take_write_lock_#t~short23#1;call write~int(1, ~#w~0.base, ~#w~0.offset + 4 * (if ~__CS_round~0 % 256 % 4294967296 <= 2147483647 then ~__CS_round~0 % 256 % 4294967296 else ~__CS_round~0 % 256 % 4294967296 - 4294967296), 4);havoc __VERIFIER_atomic_take_write_lock_#t~mem21#1, __VERIFIER_atomic_take_write_lock_#t~mem22#1, __VERIFIER_atomic_take_write_lock_#t~short23#1;assume { :end_inline___VERIFIER_atomic_take_write_lock } true;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc __VERIFIER_atomic_take_write_lock_#t~mem21#1;havoc __VERIFIER_atomic_take_write_lock_#t~mem22#1;havoc __VERIFIER_atomic_take_write_lock_#t~short23#1;call write~int(1, ~#w~0.base, ~#w~0.offset + 4 * (if ~__CS_round~0 % 256 % 4294967296 <= 2147483647 then ~__CS_round~0 % 256 % 4294967296 else ~__CS_round~0 % 256 % 4294967296 - 4294967296), 4);havoc __VERIFIER_atomic_take_write_lock_#t~mem21#1, __VERIFIER_atomic_take_write_lock_#t~mem22#1, __VERIFIER_atomic_take_write_lock_#t~short23#1;assume { :end_inline___VERIFIER_atomic_take_write_lock } true;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-24 23:52:34,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1458378674bd140ace04512980940eeb05aa22f50528a181d147a292aa3349d2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:52:37,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:52:37,689 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:52:37,697 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:52:37,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:52:37,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:52:37,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:52:37,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:52:37,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:52:37,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:52:37,760 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:52:37,761 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:52:37,761 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:52:37,763 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:52:37,763 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:52:37,763 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:52:37,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:52:37,765 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:52:37,765 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:52:37,766 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:52:37,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:52:37,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:52:37,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:52:37,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:52:37,768 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:52:37,769 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:52:37,769 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:52:37,769 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:52:37,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:52:37,770 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:52:37,771 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:52:37,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:52:37,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:52:37,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:52:37,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:37,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:52:37,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:52:37,773 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:52:37,774 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:52:37,774 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:52:37,775 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:52:37,775 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:52:37,775 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:52:37,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:52:37,776 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1458378674bd140ace04512980940eeb05aa22f50528a181d147a292aa3349d2 [2023-11-24 23:52:38,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:52:38,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:52:38,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:52:38,226 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:52:38,227 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:52:38,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2023-11-24 23:52:41,421 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:52:41,825 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:52:41,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2023-11-24 23:52:41,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/data/b470e8198/4383499f56864948beb72a408cdab43a/FLAG2857e41fb [2023-11-24 23:52:41,862 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/data/b470e8198/4383499f56864948beb72a408cdab43a [2023-11-24 23:52:41,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:52:41,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:52:41,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:41,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:52:41,873 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:52:41,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:41" (1/1) ... [2023-11-24 23:52:41,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6300e9fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:41, skipping insertion in model container [2023-11-24 23:52:41,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:41" (1/1) ... [2023-11-24 23:52:41,937 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:52:42,390 WARN L240 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_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2023-11-24 23:52:42,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:52:42,508 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:52:42,542 WARN L240 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_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2023-11-24 23:52:42,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:52:42,695 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:52:42,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:42 WrapperNode [2023-11-24 23:52:42,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:42,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:52:42,698 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:52:42,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:52:42,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:42" (1/1) ... [2023-11-24 23:52:42,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:42" (1/1) ... [2023-11-24 23:52:42,860 INFO L138 Inliner]: procedures = 149, calls = 279, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 550 [2023-11-24 23:52:42,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:52:42,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:52:42,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:52:42,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:52:42,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:42" (1/1) ... [2023-11-24 23:52:42,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:42" (1/1) ... [2023-11-24 23:52:42,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:42" (1/1) ... [2023-11-24 23:52:42,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:42" (1/1) ... [2023-11-24 23:52:42,957 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:42" (1/1) ... [2023-11-24 23:52:42,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:42" (1/1) ... [2023-11-24 23:52:42,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:42" (1/1) ... [2023-11-24 23:52:42,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:42" (1/1) ... [2023-11-24 23:52:42,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:52:42,998 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:52:42,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:52:42,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:52:42,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:42" (1/1) ... [2023-11-24 23:52:43,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:43,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:43,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:52:43,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:52:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-24 23:52:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:52:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:52:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:52:43,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:52:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:52:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:52:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-24 23:52:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-24 23:52:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:52:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-24 23:52:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-24 23:52:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-24 23:52:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-24 23:52:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-24 23:52:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:52:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:52:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:52:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-24 23:52:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-24 23:52:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-24 23:52:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assume [2023-11-24 23:52:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assume [2023-11-24 23:52:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:52:43,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:52:43,394 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:52:43,397 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:52:44,093 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume !(0bv32 != ~zero_extend~32~8(~__CS_ret~0)); [2023-11-24 23:52:44,093 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume 0bv32 != ~zero_extend~32~8(~__CS_ret~0);reader_#res#1.base, reader_#res#1.offset := 0bv32, 0bv32; [2023-11-24 23:52:47,539 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:52:47,705 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: assume { :begin_inline___VERIFIER_atomic_take_read_lock } true;havoc __VERIFIER_atomic_take_read_lock_#t~mem24#1, __VERIFIER_atomic_take_read_lock_#t~mem25#1, __VERIFIER_atomic_take_read_lock_#t~mem26#1, __VERIFIER_atomic_take_read_lock_#t~mem27#1;call __VERIFIER_atomic_take_read_lock_#t~mem24#1 := read~intINTTYPE4(~#w~0.base, ~bvadd~32(~#w~0.offset, ~bvmul~32(4bv32, ~zero_extend~32~8(~__CS_round~0))), 4bv32);). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:356) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-24 23:52:47,711 INFO L158 Benchmark]: Toolchain (without parser) took 5844.51ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 43.4MB in the beginning and 61.8MB in the end (delta: -18.4MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2023-11-24 23:52:47,713 INFO L158 Benchmark]: CDTParser took 1.20ms. Allocated memory is still 69.2MB. Free memory was 44.6MB in the beginning and 44.5MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:52:47,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 829.44ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 43.3MB in the beginning and 56.0MB in the end (delta: -12.8MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2023-11-24 23:52:47,715 INFO L158 Benchmark]: Boogie Procedure Inliner took 168.93ms. Allocated memory is still 94.4MB. Free memory was 56.0MB in the beginning and 51.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:52:47,716 INFO L158 Benchmark]: Boogie Preprocessor took 129.49ms. Allocated memory is still 94.4MB. Free memory was 51.5MB in the beginning and 46.7MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 23:52:47,717 INFO L158 Benchmark]: RCFGBuilder took 4712.03ms. Allocated memory is still 94.4MB. Free memory was 46.7MB in the beginning and 61.8MB in the end (delta: -15.1MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2023-11-24 23:52:47,726 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.20ms. Allocated memory is still 69.2MB. Free memory was 44.6MB in the beginning and 44.5MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 829.44ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 43.3MB in the beginning and 56.0MB in the end (delta: -12.8MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 168.93ms. Allocated memory is still 94.4MB. Free memory was 56.0MB in the beginning and 51.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 129.49ms. Allocated memory is still 94.4MB. Free memory was 51.5MB in the beginning and 46.7MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 4712.03ms. Allocated memory is still 94.4MB. Free memory was 46.7MB in the beginning and 61.8MB in the end (delta: -15.1MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: assume { :begin_inline___VERIFIER_atomic_take_read_lock } true;havoc __VERIFIER_atomic_take_read_lock_#t~mem24#1, __VERIFIER_atomic_take_read_lock_#t~mem25#1, __VERIFIER_atomic_take_read_lock_#t~mem26#1, __VERIFIER_atomic_take_read_lock_#t~mem27#1;call __VERIFIER_atomic_take_read_lock_#t~mem24#1 := read~intINTTYPE4(~#w~0.base, ~bvadd~32(~#w~0.offset, ~bvmul~32(4bv32, ~zero_extend~32~8(~__CS_round~0))), 4bv32);). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: assume { :begin_inline___VERIFIER_atomic_take_read_lock } true;havoc __VERIFIER_atomic_take_read_lock_#t~mem24#1, __VERIFIER_atomic_take_read_lock_#t~mem25#1, __VERIFIER_atomic_take_read_lock_#t~mem26#1, __VERIFIER_atomic_take_read_lock_#t~mem27#1;call __VERIFIER_atomic_take_read_lock_#t~mem24#1 := read~intINTTYPE4(~#w~0.base, ~bvadd~32(~#w~0.offset, ~bvmul~32(4bv32, ~zero_extend~32~8(~__CS_round~0))), 4bv32);). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:356) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-24 23:52:47,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40720c-4da6-4e21-a4a4-d31309a3fc0b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: assume { :begin_inline___VERIFIER_atomic_take_read_lock } true;havoc __VERIFIER_atomic_take_read_lock_#t~mem24#1, __VERIFIER_atomic_take_read_lock_#t~mem25#1, __VERIFIER_atomic_take_read_lock_#t~mem26#1, __VERIFIER_atomic_take_read_lock_#t~mem27#1;call __VERIFIER_atomic_take_read_lock_#t~mem24#1 := read~intINTTYPE4(~#w~0.base, ~bvadd~32(~#w~0.offset, ~bvmul~32(4bv32, ~zero_extend~32~8(~__CS_round~0))), 4bv32);). Is there illegal control flow (e.g. loops) within an atomic block?