./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 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_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/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_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/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_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/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 530cbf448b6cf17c0bca095a1467011270d511aa4e4e955e07dc3df8c3dfe236 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:46:30,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:46:30,212 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DataRace-32bit-Taipan_Default.epf [2024-11-09 04:46:30,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:46:30,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:46:30,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:46:30,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:46:30,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:46:30,260 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:46:30,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:46:30,265 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:46:30,266 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:46:30,266 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:46:30,266 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:46:30,267 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:46:30,267 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:46:30,267 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:46:30,268 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:46:30,268 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:46:30,268 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:46:30,269 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:46:30,269 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:46:30,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:46:30,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:46:30,271 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:46:30,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:46:30,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:46:30,272 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:46:30,273 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:46:30,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:46:30,274 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:46:30,274 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 04:46:30,274 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:46:30,274 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:46:30,275 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:46:30,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:46:30,275 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:46:30,276 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:46:30,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:46:30,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:46:30,279 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:46:30,280 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:46:30,280 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:46:30,280 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:46:30,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:46:30,281 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:46:30,282 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:46:30,282 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:46:30,282 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_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 530cbf448b6cf17c0bca095a1467011270d511aa4e4e955e07dc3df8c3dfe236 [2024-11-09 04:46:30,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:46:30,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:46:30,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:46:30,610 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:46:30,611 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:46:30,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i Unable to find full path for "g++" [2024-11-09 04:46:32,645 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:46:32,986 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:46:32,986 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2024-11-09 04:46:33,004 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje/data/fc25f142b/585c5ff5d8c34f99a114974ca2de74a0/FLAGd421fd67a [2024-11-09 04:46:33,261 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje/data/fc25f142b/585c5ff5d8c34f99a114974ca2de74a0 [2024-11-09 04:46:33,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:46:33,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:46:33,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:46:33,267 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:46:33,274 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:46:33,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:46:33" (1/1) ... [2024-11-09 04:46:33,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba983a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33, skipping insertion in model container [2024-11-09 04:46:33,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:46:33" (1/1) ... [2024-11-09 04:46:33,343 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:46:33,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:46:33,869 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:46:33,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:46:33,997 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:46:33,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33 WrapperNode [2024-11-09 04:46:33,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:46:33,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:46:34,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:46:34,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:46:34,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33" (1/1) ... [2024-11-09 04:46:34,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33" (1/1) ... [2024-11-09 04:46:34,057 INFO L138 Inliner]: procedures = 165, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-09 04:46:34,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:46:34,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:46:34,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:46:34,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:46:34,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33" (1/1) ... [2024-11-09 04:46:34,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33" (1/1) ... [2024-11-09 04:46:34,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33" (1/1) ... [2024-11-09 04:46:34,075 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33" (1/1) ... [2024-11-09 04:46:34,084 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33" (1/1) ... [2024-11-09 04:46:34,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33" (1/1) ... [2024-11-09 04:46:34,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33" (1/1) ... [2024-11-09 04:46:34,092 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33" (1/1) ... [2024-11-09 04:46:34,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:46:34,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:46:34,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:46:34,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:46:34,102 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33" (1/1) ... [2024-11-09 04:46:34,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:46:34,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:46:34,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:46:34,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:46:34,185 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2024-11-09 04:46:34,185 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-09 04:46:34,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-09 04:46:34,186 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2024-11-09 04:46:34,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 04:46:34,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:46:34,187 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2024-11-09 04:46:34,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:46:34,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 04:46:34,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:46:34,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:46:34,192 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 04:46:34,358 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:46:34,362 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:46:34,651 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 04:46:34,652 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:46:34,734 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:46:34,735 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:46:34,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:34 BoogieIcfgContainer [2024-11-09 04:46:34,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:46:34,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:46:34,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:46:34,743 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:46:34,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:46:33" (1/3) ... [2024-11-09 04:46:34,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142949c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:46:34, skipping insertion in model container [2024-11-09 04:46:34,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:33" (2/3) ... [2024-11-09 04:46:34,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142949c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:46:34, skipping insertion in model container [2024-11-09 04:46:34,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:34" (3/3) ... [2024-11-09 04:46:34,748 INFO L112 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2024-11-09 04:46:34,770 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:46:34,770 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-09 04:46:34,770 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 04:46:34,838 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 04:46:34,878 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 77 transitions, 158 flow [2024-11-09 04:46:34,973 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 396 states, 387 states have (on average 1.8914728682170543) internal successors, (732), 395 states have internal predecessors, (732), 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 04:46:35,017 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:46:35,023 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;@1d05ed37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:46:35,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 04:46:35,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 387 states have (on average 1.8914728682170543) internal successors, (732), 395 states have internal predecessors, (732), 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 04:46:35,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 04:46:35,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:46:35,048 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] [2024-11-09 04:46:35,049 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-09 04:46:35,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:46:35,055 INFO L85 PathProgramCache]: Analyzing trace with hash -431428100, now seen corresponding path program 1 times [2024-11-09 04:46:35,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:46:35,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557705579] [2024-11-09 04:46:35,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:46:35,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:46:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:46:35,344 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 04:46:35,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:46:35,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557705579] [2024-11-09 04:46:35,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557705579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:46:35,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:46:35,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:46:35,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707030398] [2024-11-09 04:46:35,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:46:35,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:46:35,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:46:35,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:46:35,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:46:35,390 INFO L87 Difference]: Start difference. First operand has 396 states, 387 states have (on average 1.8914728682170543) internal successors, (732), 395 states have internal predecessors, (732), 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 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 04:46:35,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:46:35,523 INFO L93 Difference]: Finished difference Result 521 states and 969 transitions. [2024-11-09 04:46:35,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:46:35,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 35 [2024-11-09 04:46:35,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:46:35,545 INFO L225 Difference]: With dead ends: 521 [2024-11-09 04:46:35,546 INFO L226 Difference]: Without dead ends: 150 [2024-11-09 04:46:35,550 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 04:46:35,554 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 26 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:46:35,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 133 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:46:35,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-09 04:46:35,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-09 04:46:35,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 148 states have (on average 1.5743243243243243) internal successors, (233), 149 states have internal predecessors, (233), 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 04:46:35,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 233 transitions. [2024-11-09 04:46:35,616 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 233 transitions. Word has length 35 [2024-11-09 04:46:35,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:46:35,620 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 233 transitions. [2024-11-09 04:46:35,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 04:46:35,620 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 233 transitions. [2024-11-09 04:46:35,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 04:46:35,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:46:35,622 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] [2024-11-09 04:46:35,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:46:35,623 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-09 04:46:35,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:46:35,624 INFO L85 PathProgramCache]: Analyzing trace with hash 63744941, now seen corresponding path program 1 times [2024-11-09 04:46:35,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:46:35,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644992601] [2024-11-09 04:46:35,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:46:35,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:46:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:46:36,010 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 04:46:36,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:46:36,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644992601] [2024-11-09 04:46:36,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644992601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:46:36,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:46:36,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:46:36,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964752185] [2024-11-09 04:46:36,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:46:36,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:46:36,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:46:36,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:46:36,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:46:36,018 INFO L87 Difference]: Start difference. First operand 150 states and 233 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 04:46:36,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:46:36,092 INFO L93 Difference]: Finished difference Result 191 states and 298 transitions. [2024-11-09 04:46:36,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:46:36,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2024-11-09 04:46:36,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:46:36,098 INFO L225 Difference]: With dead ends: 191 [2024-11-09 04:46:36,098 INFO L226 Difference]: Without dead ends: 93 [2024-11-09 04:46:36,099 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 04:46:36,100 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 13 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:46:36,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 74 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:46:36,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-09 04:46:36,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-09 04:46:36,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 91 states have (on average 1.4285714285714286) internal successors, (130), 92 states have internal predecessors, (130), 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 04:46:36,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 130 transitions. [2024-11-09 04:46:36,110 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 130 transitions. Word has length 44 [2024-11-09 04:46:36,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:46:36,114 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 130 transitions. [2024-11-09 04:46:36,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 04:46:36,114 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 130 transitions. [2024-11-09 04:46:36,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 04:46:36,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:46:36,115 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] [2024-11-09 04:46:36,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:46:36,116 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-09 04:46:36,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:46:36,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1628178581, now seen corresponding path program 2 times [2024-11-09 04:46:36,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:46:36,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873860510] [2024-11-09 04:46:36,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:46:36,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:46:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:46:36,311 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 04:46:36,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:46:36,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873860510] [2024-11-09 04:46:36,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873860510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:46:36,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:46:36,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:46:36,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020706937] [2024-11-09 04:46:36,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:46:36,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:46:36,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:46:36,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:46:36,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:46:36,316 INFO L87 Difference]: Start difference. First operand 93 states and 130 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 04:46:36,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:46:36,358 INFO L93 Difference]: Finished difference Result 93 states and 130 transitions. [2024-11-09 04:46:36,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:46:36,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2024-11-09 04:46:36,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:46:36,360 INFO L225 Difference]: With dead ends: 93 [2024-11-09 04:46:36,360 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:46:36,361 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 04:46:36,362 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 4 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:46:36,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 58 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:46:36,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:46:36,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:46:36,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 04:46:36,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:46:36,367 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2024-11-09 04:46:36,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:46:36,368 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:46:36,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 04:46:36,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:46:36,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:46:36,374 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-09 04:46:36,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-09 04:46:36,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-09 04:46:36,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-09 04:46:36,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-09 04:46:36,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-09 04:46:36,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-09 04:46:36,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:46:36,382 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-09 04:46:36,387 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 04:46:36,387 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:46:36,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:46:36 BasicIcfg [2024-11-09 04:46:36,392 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:46:36,393 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:46:36,393 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:46:36,393 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:46:36,394 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:34" (3/4) ... [2024-11-09 04:46:36,400 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:46:36,404 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-11-09 04:46:36,409 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-09 04:46:36,410 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 04:46:36,410 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 04:46:36,410 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:46:36,522 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:46:36,522 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:46:36,522 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:46:36,525 INFO L158 Benchmark]: Toolchain (without parser) took 3257.85ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 98.6MB in the beginning and 118.9MB in the end (delta: -20.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-09 04:46:36,526 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 136.3MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:46:36,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 731.09ms. Allocated memory is still 136.3MB. Free memory was 98.3MB in the beginning and 76.0MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 04:46:36,527 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.54ms. Allocated memory is still 136.3MB. Free memory was 76.0MB in the beginning and 73.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:46:36,527 INFO L158 Benchmark]: Boogie Preprocessor took 40.56ms. Allocated memory is still 136.3MB. Free memory was 73.8MB in the beginning and 72.5MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:46:36,527 INFO L158 Benchmark]: RCFGBuilder took 636.20ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 72.5MB in the beginning and 149.7MB in the end (delta: -77.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2024-11-09 04:46:36,528 INFO L158 Benchmark]: TraceAbstraction took 1653.35ms. Allocated memory is still 188.7MB. Free memory was 149.7MB in the beginning and 124.1MB in the end (delta: 25.6MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2024-11-09 04:46:36,528 INFO L158 Benchmark]: Witness Printer took 129.71ms. Allocated memory is still 188.7MB. Free memory was 123.1MB in the beginning and 118.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:46:36,532 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 136.3MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 731.09ms. Allocated memory is still 136.3MB. Free memory was 98.3MB in the beginning and 76.0MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.54ms. Allocated memory is still 136.3MB. Free memory was 76.0MB in the beginning and 73.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.56ms. Allocated memory is still 136.3MB. Free memory was 73.8MB in the beginning and 72.5MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 636.20ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 72.5MB in the beginning and 149.7MB in the end (delta: -77.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1653.35ms. Allocated memory is still 188.7MB. Free memory was 149.7MB in the beginning and 124.1MB in the end (delta: 25.6MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * Witness Printer took 129.71ms. Allocated memory is still 188.7MB. Free memory was 123.1MB in the beginning and 118.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 704]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 265 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 166 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=396occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 04:46:36,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0edacf7-c7a7-42b7-b58d-48d60fc60c6b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE