./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/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_bad23d82-a31b-44a5-94a5-d75d8247db0c/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d3b4a56bf20a7e5cb147a14169234a27b247cfdef3db9f4b8a4f4a17cd6fe47 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:58:57,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:58:57,191 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-19 04:58:57,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:58:57,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:58:57,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:58:57,237 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:58:57,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:58:57,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:58:57,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:58:57,244 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:58:57,244 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:58:57,245 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:58:57,246 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:58:57,247 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:58:57,247 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:58:57,248 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:58:57,248 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:58:57,249 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:58:57,250 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:58:57,250 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:58:57,251 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:58:57,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:58:57,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:58:57,253 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:58:57,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:58:57,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:58:57,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:58:57,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:58:57,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:58:57,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:58:57,257 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 04:58:57,257 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:58:57,258 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:58:57,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:58:57,258 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:58:57,259 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:58:57,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:58:57,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:58:57,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:58:57,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:58:57,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:58:57,261 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:58:57,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:58:57,262 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:58:57,262 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:58:57,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:58:57,263 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_bad23d82-a31b-44a5-94a5-d75d8247db0c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d3b4a56bf20a7e5cb147a14169234a27b247cfdef3db9f4b8a4f4a17cd6fe47 [2023-11-19 04:58:57,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:58:57,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:58:57,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:58:57,610 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:58:57,610 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:58:57,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2023-11-19 04:59:00,646 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:59:00,886 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:59:00,887 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2023-11-19 04:59:00,896 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/bin/utaipan-verify-t7M7D8N6sZ/data/93debc01a/69f79af832a84e17a791eda295e83a66/FLAG8c21b7354 [2023-11-19 04:59:00,911 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/bin/utaipan-verify-t7M7D8N6sZ/data/93debc01a/69f79af832a84e17a791eda295e83a66 [2023-11-19 04:59:00,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:59:00,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:59:00,917 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:00,917 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:59:00,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:59:00,924 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:00" (1/1) ... [2023-11-19 04:59:00,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6116300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:00, skipping insertion in model container [2023-11-19 04:59:00,925 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:00" (1/1) ... [2023-11-19 04:59:00,957 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:59:01,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:01,196 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:59:01,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:01,277 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:59:01,282 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:59:01,290 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:59:01,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:01 WrapperNode [2023-11-19 04:59:01,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:01,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:01,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:59:01,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:59:01,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:01" (1/1) ... [2023-11-19 04:59:01,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:01" (1/1) ... [2023-11-19 04:59:01,384 INFO L138 Inliner]: procedures = 27, calls = 84, calls flagged for inlining = 23, calls inlined = 29, statements flattened = 692 [2023-11-19 04:59:01,384 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:01,385 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:59:01,385 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:59:01,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:59:01,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:01" (1/1) ... [2023-11-19 04:59:01,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:01" (1/1) ... [2023-11-19 04:59:01,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:01" (1/1) ... [2023-11-19 04:59:01,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:01" (1/1) ... [2023-11-19 04:59:01,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:01" (1/1) ... [2023-11-19 04:59:01,459 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:01" (1/1) ... [2023-11-19 04:59:01,465 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:01" (1/1) ... [2023-11-19 04:59:01,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:01" (1/1) ... [2023-11-19 04:59:01,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:59:01,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:59:01,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:59:01,479 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:59:01,480 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:01" (1/1) ... [2023-11-19 04:59:01,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:01,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:59:01,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:59:01,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad23d82-a31b-44a5-94a5-d75d8247db0c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:59:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:59:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:59:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:59:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:59:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 04:59:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 04:59:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 04:59:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 04:59:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 04:59:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 04:59:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-19 04:59:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-19 04:59:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:59:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:59:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:59:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:59:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:59:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:59:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:59:01,558 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:59:01,732 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:59:01,735 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:59:02,920 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:59:03,727 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:59:03,727 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-19 04:59:03,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:03 BoogieIcfgContainer [2023-11-19 04:59:03,733 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:59:03,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:59:03,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:59:03,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:59:03,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:59:00" (1/3) ... [2023-11-19 04:59:03,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4714753f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:03, skipping insertion in model container [2023-11-19 04:59:03,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:01" (2/3) ... [2023-11-19 04:59:03,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4714753f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:03, skipping insertion in model container [2023-11-19 04:59:03,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:03" (3/3) ... [2023-11-19 04:59:03,741 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series2.wvr.c [2023-11-19 04:59:03,753 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 04:59:03,763 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:59:03,763 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 103 error locations. [2023-11-19 04:59:03,763 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:59:03,950 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 04:59:04,005 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:59:04,027 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 467 places, 502 transitions, 1032 flow [2023-11-19 04:59:04,032 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 467 places, 502 transitions, 1032 flow [2023-11-19 04:59:04,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 467 places, 502 transitions, 1032 flow [2023-11-19 04:59:04,250 INFO L124 PetriNetUnfolderBase]: 48/498 cut-off events. [2023-11-19 04:59:04,250 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 04:59:04,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 498 events. 48/498 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 720 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 400. Up to 4 conditions per place. [2023-11-19 04:59:04,278 INFO L119 LiptonReduction]: Number of co-enabled transitions 23662 [2023-11-19 04:59:36,321 INFO L134 LiptonReduction]: Checked pairs total: 35512 [2023-11-19 04:59:36,321 INFO L136 LiptonReduction]: Total number of compositions: 582 [2023-11-19 04:59:36,331 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 150 places, 145 transitions, 318 flow