./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje --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 f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:39:23,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:39:23,870 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DataRace-32bit-Taipan_Default.epf [2024-11-09 06:39:23,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:39:23,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:39:23,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:39:23,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:39:23,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:39:23,926 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:39:23,926 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:39:23,927 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:39:23,927 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:39:23,927 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:39:23,928 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:39:23,928 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:39:23,928 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:39:23,928 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:39:23,929 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:39:23,929 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:39:23,930 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:39:23,930 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:39:23,931 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:39:23,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:39:23,935 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:39:23,936 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:39:23,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:39:23,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:39:23,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:39:23,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:39:23,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:39:23,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:39:23,942 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:39:23,942 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:39:23,942 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:39:23,943 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:39:23,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:39:23,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:39:23,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:39:23,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:39:23,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:39:23,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:39:23,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:39:23,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:39:23,948 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:39:23,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:39:23,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:39:23,949 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:39:23,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:39:23,950 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_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e [2024-11-09 06:39:24,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:39:24,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:39:24,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:39:24,262 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:39:24,262 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:39:24,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i Unable to find full path for "g++" [2024-11-09 06:39:26,198 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:39:26,601 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:39:26,602 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2024-11-09 06:39:26,625 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje/data/037ed9915/2a8824aec9a149bf98baca41f0e56c37/FLAG9a6e6db5a [2024-11-09 06:39:26,643 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje/data/037ed9915/2a8824aec9a149bf98baca41f0e56c37 [2024-11-09 06:39:26,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:39:26,650 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:39:26,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:39:26,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:39:26,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:39:26,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:39:26" (1/1) ... [2024-11-09 06:39:26,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d36217d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:26, skipping insertion in model container [2024-11-09 06:39:26,664 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:39:26" (1/1) ... [2024-11-09 06:39:26,725 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:39:27,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:39:27,219 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:39:27,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:39:27,322 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:39:27,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:27 WrapperNode [2024-11-09 06:39:27,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:39:27,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:39:27,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:39:27,325 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:39:27,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:27" (1/1) ... [2024-11-09 06:39:27,349 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:27" (1/1) ... [2024-11-09 06:39:27,384 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 164 [2024-11-09 06:39:27,384 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:39:27,385 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:39:27,385 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:39:27,386 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:39:27,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:27" (1/1) ... [2024-11-09 06:39:27,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:27" (1/1) ... [2024-11-09 06:39:27,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:27" (1/1) ... [2024-11-09 06:39:27,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:27" (1/1) ... [2024-11-09 06:39:27,426 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:27" (1/1) ... [2024-11-09 06:39:27,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:27" (1/1) ... [2024-11-09 06:39:27,433 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:27" (1/1) ... [2024-11-09 06:39:27,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:27" (1/1) ... [2024-11-09 06:39:27,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:39:27,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:39:27,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:39:27,440 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:39:27,441 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:27" (1/1) ... [2024-11-09 06:39:27,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:39:27,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:39:27,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:39:27,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae651c1f-7a3d-48fe-a8c7-c09a35111ed9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:39:27,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:39:27,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:39:27,532 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:39:27,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:39:27,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:39:27,532 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:39:27,533 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:39:27,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:39:27,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:39:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:39:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:39:27,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:39:27,539 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:39:27,773 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:39:27,775 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:39:28,393 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:39:28,394 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:39:28,452 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:39:28,453 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-09 06:39:28,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:39:28 BoogieIcfgContainer [2024-11-09 06:39:28,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:39:28,456 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:39:28,456 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:39:28,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:39:28,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:39:26" (1/3) ... [2024-11-09 06:39:28,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e61ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:39:28, skipping insertion in model container [2024-11-09 06:39:28,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:27" (2/3) ... [2024-11-09 06:39:28,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e61ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:39:28, skipping insertion in model container [2024-11-09 06:39:28,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:39:28" (3/3) ... [2024-11-09 06:39:28,462 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_51-mutexptr_racefree.i [2024-11-09 06:39:28,481 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:39:28,482 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-09 06:39:28,482 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:39:28,594 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 06:39:28,635 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 242 places, 252 transitions, 511 flow [2024-11-09 06:39:28,912 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5408 states, 5329 states have (on average 2.1371739538374928) internal successors, (11389), 5407 states have internal predecessors, (11389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:28,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:39:28,948 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@405755f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:39:28,948 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-09 06:39:28,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 5408 states, 5329 states have (on average 2.1371739538374928) internal successors, (11389), 5407 states have internal predecessors, (11389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:28,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 06:39:28,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:28,972 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:28,973 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-09 06:39:28,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:28,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1932346002, now seen corresponding path program 1 times [2024-11-09 06:39:28,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:28,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219815776] [2024-11-09 06:39:28,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:28,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:29,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:29,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:29,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219815776] [2024-11-09 06:39:29,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219815776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:29,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:29,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:39:29,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757583243] [2024-11-09 06:39:29,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:29,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:39:29,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:29,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:39:29,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:39:29,379 INFO L87 Difference]: Start difference. First operand has 5408 states, 5329 states have (on average 2.1371739538374928) internal successors, (11389), 5407 states have internal predecessors, (11389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:29,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:29,664 INFO L93 Difference]: Finished difference Result 10235 states and 21709 transitions. [2024-11-09 06:39:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:39:29,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-09 06:39:29,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:29,727 INFO L225 Difference]: With dead ends: 10235 [2024-11-09 06:39:29,727 INFO L226 Difference]: Without dead ends: 5206 [2024-11-09 06:39:29,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:39:29,749 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 1 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:29,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 429 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:39:29,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5206 states. [2024-11-09 06:39:29,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5206 to 5206. [2024-11-09 06:39:30,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5206 states, 5123 states have (on average 2.0017567831348817) internal successors, (10255), 5205 states have internal predecessors, (10255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:30,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5206 states to 5206 states and 10255 transitions. [2024-11-09 06:39:30,049 INFO L78 Accepts]: Start accepts. Automaton has 5206 states and 10255 transitions. Word has length 88 [2024-11-09 06:39:30,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:30,050 INFO L471 AbstractCegarLoop]: Abstraction has 5206 states and 10255 transitions. [2024-11-09 06:39:30,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:30,050 INFO L276 IsEmpty]: Start isEmpty. Operand 5206 states and 10255 transitions. [2024-11-09 06:39:30,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 06:39:30,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:30,053 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:30,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:39:30,054 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-09 06:39:30,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:30,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1353204556, now seen corresponding path program 1 times [2024-11-09 06:39:30,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:30,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972363800] [2024-11-09 06:39:30,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:30,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:30,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:30,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:30,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972363800] [2024-11-09 06:39:30,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972363800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:30,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:30,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:39:30,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780075915] [2024-11-09 06:39:30,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:30,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:39:30,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:30,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:39:30,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:39:30,298 INFO L87 Difference]: Start difference. First operand 5206 states and 10255 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:30,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:30,500 INFO L93 Difference]: Finished difference Result 5215 states and 10263 transitions. [2024-11-09 06:39:30,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:39:30,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-09 06:39:30,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:30,534 INFO L225 Difference]: With dead ends: 5215 [2024-11-09 06:39:30,534 INFO L226 Difference]: Without dead ends: 5171 [2024-11-09 06:39:30,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:39:30,542 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 83 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:30,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 427 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:39:30,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5171 states. [2024-11-09 06:39:30,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5171 to 5171. [2024-11-09 06:39:30,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5092 states have (on average 2.0066771406127257) internal successors, (10218), 5170 states have internal predecessors, (10218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:30,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 10218 transitions. [2024-11-09 06:39:30,751 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 10218 transitions. Word has length 95 [2024-11-09 06:39:30,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:30,754 INFO L471 AbstractCegarLoop]: Abstraction has 5171 states and 10218 transitions. [2024-11-09 06:39:30,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:30,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 10218 transitions. [2024-11-09 06:39:30,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 06:39:30,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:30,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:30,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:39:30,759 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-09 06:39:30,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:30,761 INFO L85 PathProgramCache]: Analyzing trace with hash -570841595, now seen corresponding path program 1 times [2024-11-09 06:39:30,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:30,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883809213] [2024-11-09 06:39:30,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:30,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:31,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:31,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:31,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883809213] [2024-11-09 06:39:31,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883809213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:31,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:31,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:39:31,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427945814] [2024-11-09 06:39:31,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:31,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:39:31,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:31,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:39:31,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:39:31,882 INFO L87 Difference]: Start difference. First operand 5171 states and 10218 transitions. Second operand has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:32,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:32,711 INFO L93 Difference]: Finished difference Result 5542 states and 10900 transitions. [2024-11-09 06:39:32,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:39:32,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-09 06:39:32,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:32,754 INFO L225 Difference]: With dead ends: 5542 [2024-11-09 06:39:32,754 INFO L226 Difference]: Without dead ends: 5471 [2024-11-09 06:39:32,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:39:32,759 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 216 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:32,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 854 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:39:32,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5471 states. [2024-11-09 06:39:32,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5471 to 5365. [2024-11-09 06:39:32,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5365 states, 5289 states have (on average 2.0047267914539613) internal successors, (10603), 5364 states have internal predecessors, (10603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:32,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 10603 transitions. [2024-11-09 06:39:32,980 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 10603 transitions. Word has length 102 [2024-11-09 06:39:32,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:32,981 INFO L471 AbstractCegarLoop]: Abstraction has 5365 states and 10603 transitions. [2024-11-09 06:39:32,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:32,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 10603 transitions. [2024-11-09 06:39:32,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 06:39:32,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:32,986 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:32,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:39:32,986 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-09 06:39:32,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:32,987 INFO L85 PathProgramCache]: Analyzing trace with hash -504959972, now seen corresponding path program 1 times [2024-11-09 06:39:32,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:32,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703660465] [2024-11-09 06:39:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:32,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:33,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:33,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703660465] [2024-11-09 06:39:33,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703660465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:33,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:33,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:39:33,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443163313] [2024-11-09 06:39:33,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:33,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:39:33,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:33,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:39:33,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:39:33,117 INFO L87 Difference]: Start difference. First operand 5365 states and 10603 transitions. Second operand has 3 states, 2 states have (on average 54.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:33,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:33,242 INFO L93 Difference]: Finished difference Result 5365 states and 10603 transitions. [2024-11-09 06:39:33,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:39:33,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 54.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-11-09 06:39:33,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:33,277 INFO L225 Difference]: With dead ends: 5365 [2024-11-09 06:39:33,278 INFO L226 Difference]: Without dead ends: 4844 [2024-11-09 06:39:33,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:39:33,283 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 135 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:33,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 348 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:39:33,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2024-11-09 06:39:33,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4844. [2024-11-09 06:39:33,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4844 states, 4811 states have (on average 1.9854500103928496) internal successors, (9552), 4843 states have internal predecessors, (9552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:33,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 9552 transitions. [2024-11-09 06:39:33,454 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 9552 transitions. Word has length 108 [2024-11-09 06:39:33,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:33,455 INFO L471 AbstractCegarLoop]: Abstraction has 4844 states and 9552 transitions. [2024-11-09 06:39:33,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 54.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:33,455 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 9552 transitions. [2024-11-09 06:39:33,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 06:39:33,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:33,458 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:33,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:39:33,459 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-09 06:39:33,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:33,460 INFO L85 PathProgramCache]: Analyzing trace with hash 371208795, now seen corresponding path program 1 times [2024-11-09 06:39:33,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:33,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916624326] [2024-11-09 06:39:33,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:33,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:39:33,503 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:39:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:39:33,627 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:39:33,628 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:39:33,629 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-09 06:39:33,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-09 06:39:33,632 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-09 06:39:33,633 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-09 06:39:33,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-09 06:39:33,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-09 06:39:33,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2024-11-09 06:39:33,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-09 06:39:33,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-09 06:39:33,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-09 06:39:33,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-09 06:39:33,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-09 06:39:33,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-09 06:39:33,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-09 06:39:33,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-09 06:39:33,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-09 06:39:33,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-09 06:39:33,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-09 06:39:33,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-09 06:39:33,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-09 06:39:33,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-09 06:39:33,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-09 06:39:33,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:39:33,644 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-09 06:39:33,647 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:39:33,648 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 06:39:33,718 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 06:39:33,726 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 314 places, 329 transitions, 674 flow [2024-11-09 06:39:45,627 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 374518 states, 373863 states have (on average 3.1948467754230827) internal successors, (1194435), 374517 states have internal predecessors, (1194435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:45,633 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:39:45,638 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@405755f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:39:45,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-09 06:39:46,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 374518 states, 373863 states have (on average 3.1948467754230827) internal successors, (1194435), 374517 states have internal predecessors, (1194435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:46,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 06:39:46,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:46,241 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:46,241 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 06:39:46,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:46,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1720402194, now seen corresponding path program 1 times [2024-11-09 06:39:46,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:46,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079858747] [2024-11-09 06:39:46,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:46,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:46,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:46,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:46,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079858747] [2024-11-09 06:39:46,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079858747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:46,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:46,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:39:46,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525954583] [2024-11-09 06:39:46,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:46,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:39:46,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:46,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:39:46,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:39:46,775 INFO L87 Difference]: Start difference. First operand has 374518 states, 373863 states have (on average 3.1948467754230827) internal successors, (1194435), 374517 states have internal predecessors, (1194435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:58,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:58,665 INFO L93 Difference]: Finished difference Result 734779 states and 2345205 transitions. [2024-11-09 06:39:58,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:39:58,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-09 06:39:58,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:02,674 INFO L225 Difference]: With dead ends: 734779 [2024-11-09 06:40:02,674 INFO L226 Difference]: Without dead ends: 364201 [2024-11-09 06:40:03,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:40:03,262 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 1 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:03,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 546 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:40:04,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364201 states. [2024-11-09 06:40:16,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364201 to 364201. [2024-11-09 06:40:16,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364201 states, 363481 states have (on average 2.972667072006515) internal successors, (1080508), 364200 states have internal predecessors, (1080508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:40:19,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364201 states to 364201 states and 1080508 transitions. [2024-11-09 06:40:20,286 INFO L78 Accepts]: Start accepts. Automaton has 364201 states and 1080508 transitions. Word has length 88 [2024-11-09 06:40:20,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:20,287 INFO L471 AbstractCegarLoop]: Abstraction has 364201 states and 1080508 transitions. [2024-11-09 06:40:20,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:40:20,287 INFO L276 IsEmpty]: Start isEmpty. Operand 364201 states and 1080508 transitions. [2024-11-09 06:40:20,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 06:40:20,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:20,289 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:40:20,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:40:20,290 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 06:40:20,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:20,291 INFO L85 PathProgramCache]: Analyzing trace with hash 999087029, now seen corresponding path program 1 times [2024-11-09 06:40:20,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:40:20,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816416254] [2024-11-09 06:40:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:20,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:40:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:20,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:40:20,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:40:20,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816416254] [2024-11-09 06:40:20,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816416254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:40:20,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:40:20,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:40:20,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052397321] [2024-11-09 06:40:20,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:20,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:40:20,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:40:20,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:40:20,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:40:20,385 INFO L87 Difference]: Start difference. First operand 364201 states and 1080508 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)