./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 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_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/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_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/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_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ --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 0.2.3-dev-9bd2c7f [2023-11-19 05:16:03,907 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:16:04,060 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:16:04,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:16:04,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:16:04,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:16:04,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:16:04,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:16:04,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:16:04,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:16:04,130 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:16:04,130 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:16:04,131 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:16:04,133 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:16:04,133 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:16:04,134 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:16:04,134 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:16:04,135 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:16:04,135 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:16:04,136 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:16:04,136 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:16:04,137 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:16:04,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:16:04,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:16:04,140 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:16:04,140 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:16:04,141 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:16:04,141 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:16:04,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:16:04,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:16:04,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:16:04,144 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:16:04,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:16:04,144 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:16:04,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:16:04,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:16:04,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:04,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:16:04,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:16:04,146 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:16:04,146 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:16:04,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:16:04,147 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:16:04,147 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:16:04,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:16:04,148 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_0b7baaf4-2030-4321-9682-ae39aeab85e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1458378674bd140ace04512980940eeb05aa22f50528a181d147a292aa3349d2 [2023-11-19 05:16:04,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:16:04,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:16:04,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:16:04,442 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:16:04,443 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:16:04,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2023-11-19 05:16:07,695 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:16:08,078 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:16:08,083 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2023-11-19 05:16:08,109 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/data/ffa62e8ca/356a2db742804906a8e485489f2b22dc/FLAG3ab074921 [2023-11-19 05:16:08,312 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/data/ffa62e8ca/356a2db742804906a8e485489f2b22dc [2023-11-19 05:16:08,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:16:08,316 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:16:08,318 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:08,318 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:16:08,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:16:08,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:08" (1/1) ... [2023-11-19 05:16:08,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167b81ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:08, skipping insertion in model container [2023-11-19 05:16:08,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:08" (1/1) ... [2023-11-19 05:16:08,393 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:16:08,801 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_0b7baaf4-2030-4321-9682-ae39aeab85e4/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2023-11-19 05:16:08,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:09,007 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:16:09,054 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_0b7baaf4-2030-4321-9682-ae39aeab85e4/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2023-11-19 05:16:09,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:09,162 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:16:09,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:09 WrapperNode [2023-11-19 05:16:09,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:09,164 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:09,164 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:16:09,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:16:09,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:09" (1/1) ... [2023-11-19 05:16:09,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:09" (1/1) ... [2023-11-19 05:16:09,268 INFO L138 Inliner]: procedures = 145, calls = 279, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 557 [2023-11-19 05:16:09,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:09,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:16:09,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:16:09,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:16:09,280 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:09" (1/1) ... [2023-11-19 05:16:09,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:09" (1/1) ... [2023-11-19 05:16:09,291 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:09" (1/1) ... [2023-11-19 05:16:09,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:09" (1/1) ... [2023-11-19 05:16:09,340 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:09" (1/1) ... [2023-11-19 05:16:09,357 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:09" (1/1) ... [2023-11-19 05:16:09,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:09" (1/1) ... [2023-11-19 05:16:09,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:09" (1/1) ... [2023-11-19 05:16:09,401 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:16:09,402 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:16:09,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:16:09,402 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:16:09,407 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:09" (1/1) ... [2023-11-19 05:16:09,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:09,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:16:09,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:16:09,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:16:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:16:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:16:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:16:09,495 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:16:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:16:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:16:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:16:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-19 05:16:09,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-19 05:16:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:16:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-19 05:16:09,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-19 05:16:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 05:16:09,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 05:16:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:16:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-19 05:16:09,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-19 05:16:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:16:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assume [2023-11-19 05:16:09,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assume [2023-11-19 05:16:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:16:09,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:16:09,681 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:16:09,685 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:16:10,423 INFO L767 $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)); [2023-11-19 05:16:10,423 INFO L767 $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; [2023-11-19 05:16:12,767 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:16:12,934 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:16:12,935 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:16:12,939 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:328) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) 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) [2023-11-19 05:16:12,944 INFO L158 Benchmark]: Toolchain (without parser) took 4626.32ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 101.8MB in the beginning and 92.1MB in the end (delta: 9.6MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. [2023-11-19 05:16:12,944 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 138.4MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:16:12,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 845.45ms. Allocated memory is still 138.4MB. Free memory was 101.8MB in the beginning and 75.4MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 05:16:12,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.56ms. Allocated memory is still 138.4MB. Free memory was 75.4MB in the beginning and 70.0MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 05:16:12,947 INFO L158 Benchmark]: Boogie Preprocessor took 131.86ms. Allocated memory is still 138.4MB. Free memory was 70.0MB in the beginning and 65.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:16:12,948 INFO L158 Benchmark]: RCFGBuilder took 3540.00ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 65.8MB in the beginning and 92.1MB in the end (delta: -26.3MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2023-11-19 05:16:12,951 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 138.4MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 845.45ms. Allocated memory is still 138.4MB. Free memory was 101.8MB in the beginning and 75.4MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.56ms. Allocated memory is still 138.4MB. Free memory was 75.4MB in the beginning and 70.0MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 131.86ms. Allocated memory is still 138.4MB. Free memory was 70.0MB in the beginning and 65.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3540.00ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 65.8MB in the beginning and 92.1MB in the end (delta: -26.3MB). Peak memory consumption was 47.7MB. 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:328) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 05:16:12,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/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_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/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_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ --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 0.2.3-dev-9bd2c7f [2023-11-19 05:16:15,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:16:15,972 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:16:15,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:16:15,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:16:16,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:16:16,031 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:16:16,031 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:16:16,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:16:16,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:16:16,038 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:16:16,039 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:16:16,039 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:16:16,041 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:16:16,042 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:16:16,042 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:16:16,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:16:16,044 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:16:16,045 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:16:16,046 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:16:16,046 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:16:16,047 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:16:16,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:16:16,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:16:16,049 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:16:16,049 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:16:16,050 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:16:16,050 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:16:16,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:16:16,051 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:16:16,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:16:16,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:16:16,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:16:16,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:16,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:16:16,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:16:16,055 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:16:16,055 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:16:16,055 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:16:16,056 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:16:16,057 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:16:16,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:16:16,057 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_0b7baaf4-2030-4321-9682-ae39aeab85e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1458378674bd140ace04512980940eeb05aa22f50528a181d147a292aa3349d2 [2023-11-19 05:16:16,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:16:16,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:16:16,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:16:16,538 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:16:16,538 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:16:16,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2023-11-19 05:16:19,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:16:20,405 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:16:20,406 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2023-11-19 05:16:20,431 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/data/c951ce0b2/4b2bbc1fdf5c48adbc6aeeca2afccc98/FLAG739720047 [2023-11-19 05:16:20,458 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/data/c951ce0b2/4b2bbc1fdf5c48adbc6aeeca2afccc98 [2023-11-19 05:16:20,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:16:20,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:16:20,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:20,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:16:20,472 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:16:20,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:20" (1/1) ... [2023-11-19 05:16:20,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f54215f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:20, skipping insertion in model container [2023-11-19 05:16:20,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:20" (1/1) ... [2023-11-19 05:16:20,540 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:16:21,070 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_0b7baaf4-2030-4321-9682-ae39aeab85e4/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2023-11-19 05:16:21,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:21,325 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:16:21,426 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_0b7baaf4-2030-4321-9682-ae39aeab85e4/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2023-11-19 05:16:21,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:21,629 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:16:21,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:21 WrapperNode [2023-11-19 05:16:21,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:21,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:21,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:16:21,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:16:21,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:21" (1/1) ... [2023-11-19 05:16:21,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:21" (1/1) ... [2023-11-19 05:16:21,783 INFO L138 Inliner]: procedures = 149, calls = 279, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 550 [2023-11-19 05:16:21,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:21,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:16:21,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:16:21,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:16:21,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:21" (1/1) ... [2023-11-19 05:16:21,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:21" (1/1) ... [2023-11-19 05:16:21,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:21" (1/1) ... [2023-11-19 05:16:21,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:21" (1/1) ... [2023-11-19 05:16:21,872 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:21" (1/1) ... [2023-11-19 05:16:21,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:21" (1/1) ... [2023-11-19 05:16:21,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:21" (1/1) ... [2023-11-19 05:16:21,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:21" (1/1) ... [2023-11-19 05:16:21,911 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:16:21,912 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:16:21,913 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:16:21,913 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:16:21,914 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:21" (1/1) ... [2023-11-19 05:16:21,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:21,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:16:21,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:16:21,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:16:22,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 05:16:22,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:16:22,014 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:16:22,014 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:16:22,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:16:22,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:16:22,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:16:22,015 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-19 05:16:22,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-19 05:16:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:16:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-19 05:16:22,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-19 05:16:22,019 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 05:16:22,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 05:16:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 05:16:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:16:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:16:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:16:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 05:16:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-19 05:16:22,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-19 05:16:22,022 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assume [2023-11-19 05:16:22,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assume [2023-11-19 05:16:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:16:22,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:16:22,284 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:16:22,287 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:16:23,015 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume !(0bv32 != ~zero_extend~32~8(~__CS_ret~0)); [2023-11-19 05:16:23,015 INFO L767 $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; [2023-11-19 05:16:26,707 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:16:26,752 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:16:26,752 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:16:26,760 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:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) 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) [2023-11-19 05:16:26,766 INFO L158 Benchmark]: Toolchain (without parser) took 6302.40ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 67.3MB in the beginning and 72.8MB in the end (delta: -5.5MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2023-11-19 05:16:26,767 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:16:26,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1165.30ms. Allocated memory is still 92.3MB. Free memory was 67.1MB in the beginning and 61.0MB in the end (delta: 6.1MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-11-19 05:16:26,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 153.04ms. Allocated memory is still 92.3MB. Free memory was 61.0MB in the beginning and 56.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:16:26,770 INFO L158 Benchmark]: Boogie Preprocessor took 125.78ms. Allocated memory is still 92.3MB. Free memory was 56.5MB in the beginning and 51.9MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:16:26,771 INFO L158 Benchmark]: RCFGBuilder took 4852.16ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 51.9MB in the beginning and 72.8MB in the end (delta: -20.9MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2023-11-19 05:16:26,781 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1165.30ms. Allocated memory is still 92.3MB. Free memory was 67.1MB in the beginning and 61.0MB in the end (delta: 6.1MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 153.04ms. Allocated memory is still 92.3MB. Free memory was 61.0MB in the beginning and 56.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 125.78ms. Allocated memory is still 92.3MB. Free memory was 56.5MB in the beginning and 51.9MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 4852.16ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 51.9MB in the beginning and 72.8MB in the end (delta: -20.9MB). Peak memory consumption was 29.3MB. 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:348) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 05:16:26,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b7baaf4-2030-4321-9682-ae39aeab85e4/bin/utaipan-verify-t7M7D8N6sZ/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?