./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1-pthread.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1-pthread.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 04a1d4ff1109dce80fd92bb8b947109ce8379b8f1a452f4ba67af1891a651644 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:35:13,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:35:13,575 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:35:13,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:35:13,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:35:13,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:35:13,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:35:13,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:35:13,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:35:13,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:35:13,627 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:35:13,627 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:35:13,628 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:35:13,628 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:35:13,629 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:35:13,629 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:35:13,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:35:13,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:35:13,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:35:13,631 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:35:13,632 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:35:13,632 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:35:13,633 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:35:13,633 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:35:13,634 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:35:13,634 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:35:13,642 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:35:13,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:35:13,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:35:13,648 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:35:13,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:13,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:35:13,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:35:13,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:35:13,650 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:35:13,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:35:13,651 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:35:13,651 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:35:13,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:35:13,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:35:13,653 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:35:13,655 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04a1d4ff1109dce80fd92bb8b947109ce8379b8f1a452f4ba67af1891a651644 [2023-11-19 07:35:13,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:35:13,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:35:13,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:35:13,958 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:35:13,958 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:35:13,960 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1-pthread.i [2023-11-19 07:35:17,089 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:35:17,402 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:35:17,407 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/sv-benchmarks/c/pthread-atomic/read_write_lock-1-pthread.i [2023-11-19 07:35:17,424 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/data/60941cc15/e4232c86c8704260ac8d3aa43258bef3/FLAG1565e70a7 [2023-11-19 07:35:17,441 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/data/60941cc15/e4232c86c8704260ac8d3aa43258bef3 [2023-11-19 07:35:17,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:35:17,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:35:17,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:17,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:35:17,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:35:17,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:17,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27feaf43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17, skipping insertion in model container [2023-11-19 07:35:17,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:17,507 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:35:17,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:17,944 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:35:18,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:18,083 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:35:18,083 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:35:18,092 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:35:18,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:18 WrapperNode [2023-11-19 07:35:18,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:18,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:18,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:35:18,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:35:18,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:18" (1/1) ... [2023-11-19 07:35:18,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:18" (1/1) ... [2023-11-19 07:35:18,183 INFO L138 Inliner]: procedures = 166, calls = 55, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 137 [2023-11-19 07:35:18,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:18,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:35:18,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:35:18,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:35:18,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:18" (1/1) ... [2023-11-19 07:35:18,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:18" (1/1) ... [2023-11-19 07:35:18,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:18" (1/1) ... [2023-11-19 07:35:18,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:18" (1/1) ... [2023-11-19 07:35:18,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:18" (1/1) ... [2023-11-19 07:35:18,220 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:18" (1/1) ... [2023-11-19 07:35:18,223 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:18" (1/1) ... [2023-11-19 07:35:18,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:18" (1/1) ... [2023-11-19 07:35:18,229 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:35:18,230 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:35:18,230 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:35:18,230 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:35:18,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:18" (1/1) ... [2023-11-19 07:35:18,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:18,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:18,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:18,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:35:18,319 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2023-11-19 07:35:18,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:35:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:35:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2023-11-19 07:35:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:35:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:35:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2023-11-19 07:35:18,322 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2023-11-19 07:35:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:35:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2023-11-19 07:35:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:35:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:35:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:35:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:35:18,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:35:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2023-11-19 07:35:18,328 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2023-11-19 07:35:18,330 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:35:18,559 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:35:18,562 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:35:19,037 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:35:19,097 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:35:19,097 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:35:19,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:19 BoogieIcfgContainer [2023-11-19 07:35:19,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:35:19,106 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:35:19,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:35:19,110 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:35:19,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:35:17" (1/3) ... [2023-11-19 07:35:19,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35336ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:19, skipping insertion in model container [2023-11-19 07:35:19,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:18" (2/3) ... [2023-11-19 07:35:19,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35336ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:19, skipping insertion in model container [2023-11-19 07:35:19,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:19" (3/3) ... [2023-11-19 07:35:19,116 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1-pthread.i [2023-11-19 07:35:19,127 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:35:19,140 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:35:19,140 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-19 07:35:19,140 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:35:19,256 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 07:35:19,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 177 transitions, 382 flow [2023-11-19 07:35:19,400 INFO L124 PetriNetUnfolderBase]: 4/173 cut-off events. [2023-11-19 07:35:19,400 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 07:35:19,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 173 events. 4/173 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 251 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2023-11-19 07:35:19,409 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 177 transitions, 382 flow [2023-11-19 07:35:19,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 168 places, 159 transitions, 339 flow [2023-11-19 07:35:19,430 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:35:19,447 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 159 transitions, 339 flow [2023-11-19 07:35:19,450 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 159 transitions, 339 flow [2023-11-19 07:35:19,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 159 transitions, 339 flow [2023-11-19 07:35:19,507 INFO L124 PetriNetUnfolderBase]: 4/159 cut-off events. [2023-11-19 07:35:19,507 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:35:19,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 159 events. 4/159 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 251 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2023-11-19 07:35:19,517 INFO L119 LiptonReduction]: Number of co-enabled transitions 8714 [2023-11-19 07:35:26,013 INFO L134 LiptonReduction]: Checked pairs total: 25264 [2023-11-19 07:35:26,013 INFO L136 LiptonReduction]: Total number of compositions: 122 [2023-11-19 07:35:26,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:35:26,037 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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;@38f3f2b3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:35:26,037 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-11-19 07:35:26,062 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:35:26,062 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-19 07:35:26,063 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:35:26,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:26,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:35:26,064 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-19 07:35:26,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:26,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1206249242, now seen corresponding path program 1 times [2023-11-19 07:35:26,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:26,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659603400] [2023-11-19 07:35:26,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:26,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:26,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:26,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:26,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659603400] [2023-11-19 07:35:26,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659603400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:26,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:26,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:35:26,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182280476] [2023-11-19 07:35:26,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:26,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:26,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:26,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:26,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:26,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 299 [2023-11-19 07:35:26,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 55 transitions, 131 flow. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2023-11-19 07:35:26,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:26,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 299 [2023-11-19 07:35:26,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:28,923 INFO L124 PetriNetUnfolderBase]: 14053/19566 cut-off events. [2023-11-19 07:35:28,923 INFO L125 PetriNetUnfolderBase]: For 1034/1034 co-relation queries the response was YES. [2023-11-19 07:35:28,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39665 conditions, 19566 events. 14053/19566 cut-off events. For 1034/1034 co-relation queries the response was YES. Maximal size of possible extension queue 611. Compared 105729 event pairs, 11694 based on Foata normal form. 0/18693 useless extension candidates. Maximal degree in co-relation 35498. Up to 17302 conditions per place. [2023-11-19 07:35:29,098 INFO L140 encePairwiseOnDemand]: 277/299 looper letters, 52 selfloop transitions, 7 changer transitions 2/63 dead transitions. [2023-11-19 07:35:29,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 63 transitions, 278 flow [2023-11-19 07:35:29,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:29,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:35:29,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2023-11-19 07:35:29,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5752508361204013 [2023-11-19 07:35:29,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 516 transitions. [2023-11-19 07:35:29,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 516 transitions. [2023-11-19 07:35:29,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:29,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 516 transitions. [2023-11-19 07:35:29,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2023-11-19 07:35:29,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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) [2023-11-19 07:35:29,134 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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) [2023-11-19 07:35:29,136 INFO L175 Difference]: Start difference. First operand has 66 places, 55 transitions, 131 flow. Second operand 3 states and 516 transitions. [2023-11-19 07:35:29,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 63 transitions, 278 flow [2023-11-19 07:35:29,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 63 transitions, 260 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-19 07:35:29,156 INFO L231 Difference]: Finished difference. Result has 48 places, 43 transitions, 128 flow [2023-11-19 07:35:29,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2023-11-19 07:35:29,162 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -18 predicate places. [2023-11-19 07:35:29,162 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 128 flow [2023-11-19 07:35:29,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2023-11-19 07:35:29,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:29,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:29,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:35:29,164 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-19 07:35:29,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:29,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1924749992, now seen corresponding path program 1 times [2023-11-19 07:35:29,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:29,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825616357] [2023-11-19 07:35:29,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:29,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:29,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:29,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:29,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825616357] [2023-11-19 07:35:29,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825616357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:29,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:29,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:35:29,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348111855] [2023-11-19 07:35:29,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:29,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:29,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:29,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:29,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:29,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 299 [2023-11-19 07:35:29,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2023-11-19 07:35:29,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:29,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 299 [2023-11-19 07:35:29,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:29,878 INFO L124 PetriNetUnfolderBase]: 1614/2975 cut-off events. [2023-11-19 07:35:29,878 INFO L125 PetriNetUnfolderBase]: For 551/589 co-relation queries the response was YES. [2023-11-19 07:35:29,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7009 conditions, 2975 events. 1614/2975 cut-off events. For 551/589 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 19221 event pairs, 152 based on Foata normal form. 1440/4267 useless extension candidates. Maximal degree in co-relation 4473. Up to 2302 conditions per place. [2023-11-19 07:35:29,898 INFO L140 encePairwiseOnDemand]: 291/299 looper letters, 41 selfloop transitions, 2 changer transitions 4/51 dead transitions. [2023-11-19 07:35:29,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 245 flow [2023-11-19 07:35:29,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:29,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:35:29,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 470 transitions. [2023-11-19 07:35:29,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5239687848383501 [2023-11-19 07:35:29,902 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 470 transitions. [2023-11-19 07:35:29,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 470 transitions. [2023-11-19 07:35:29,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:29,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 470 transitions. [2023-11-19 07:35:29,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 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) [2023-11-19 07:35:29,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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) [2023-11-19 07:35:29,909 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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) [2023-11-19 07:35:29,909 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 128 flow. Second operand 3 states and 470 transitions. [2023-11-19 07:35:29,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 245 flow [2023-11-19 07:35:29,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 239 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:35:29,923 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 109 flow [2023-11-19 07:35:29,924 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2023-11-19 07:35:29,925 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -24 predicate places. [2023-11-19 07:35:29,925 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 109 flow [2023-11-19 07:35:29,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2023-11-19 07:35:29,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:29,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:29,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:35:29,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-19 07:35:29,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:29,928 INFO L85 PathProgramCache]: Analyzing trace with hash -858648680, now seen corresponding path program 2 times [2023-11-19 07:35:29,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:29,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356683568] [2023-11-19 07:35:29,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:29,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:30,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:30,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:30,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356683568] [2023-11-19 07:35:30,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356683568] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:30,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:30,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:35:30,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306122848] [2023-11-19 07:35:30,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:30,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:30,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:30,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:30,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:30,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 299 [2023-11-19 07:35:30,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2023-11-19 07:35:30,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:30,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 299 [2023-11-19 07:35:30,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:30,214 INFO L124 PetriNetUnfolderBase]: 128/271 cut-off events. [2023-11-19 07:35:30,215 INFO L125 PetriNetUnfolderBase]: For 516/516 co-relation queries the response was YES. [2023-11-19 07:35:30,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 673 conditions, 271 events. 128/271 cut-off events. For 516/516 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1002 event pairs, 40 based on Foata normal form. 198/465 useless extension candidates. Maximal degree in co-relation 571. Up to 246 conditions per place. [2023-11-19 07:35:30,216 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 14 selfloop transitions, 1 changer transitions 19/36 dead transitions. [2023-11-19 07:35:30,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 173 flow [2023-11-19 07:35:30,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:30,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:35:30,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2023-11-19 07:35:30,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5094760312151616 [2023-11-19 07:35:30,219 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 457 transitions. [2023-11-19 07:35:30,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 457 transitions. [2023-11-19 07:35:30,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:30,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 457 transitions. [2023-11-19 07:35:30,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) [2023-11-19 07:35:30,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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) [2023-11-19 07:35:30,245 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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) [2023-11-19 07:35:30,245 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 109 flow. Second operand 3 states and 457 transitions. [2023-11-19 07:35:30,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 173 flow [2023-11-19 07:35:30,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 36 transitions, 169 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-19 07:35:30,247 INFO L231 Difference]: Finished difference. Result has 39 places, 14 transitions, 37 flow [2023-11-19 07:35:30,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=39, PETRI_TRANSITIONS=14} [2023-11-19 07:35:30,248 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -27 predicate places. [2023-11-19 07:35:30,248 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 14 transitions, 37 flow [2023-11-19 07:35:30,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2023-11-19 07:35:30,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:30,249 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:30,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:35:30,250 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-19 07:35:30,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:30,250 INFO L85 PathProgramCache]: Analyzing trace with hash -502638188, now seen corresponding path program 1 times [2023-11-19 07:35:30,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:30,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399605159] [2023-11-19 07:35:30,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:30,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:30,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:30,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:30,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399605159] [2023-11-19 07:35:30,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399605159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:30,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:30,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:35:30,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416205321] [2023-11-19 07:35:30,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:30,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:30,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:30,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:30,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:30,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 299 [2023-11-19 07:35:30,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 14 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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) [2023-11-19 07:35:30,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:30,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 299 [2023-11-19 07:35:30,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:30,340 INFO L124 PetriNetUnfolderBase]: 12/37 cut-off events. [2023-11-19 07:35:30,341 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-19 07:35:30,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 37 events. 12/37 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 6 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 95. Up to 24 conditions per place. [2023-11-19 07:35:30,341 INFO L140 encePairwiseOnDemand]: 297/299 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2023-11-19 07:35:30,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 16 transitions, 75 flow [2023-11-19 07:35:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:30,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:35:30,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2023-11-19 07:35:30,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4972129319955407 [2023-11-19 07:35:30,344 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2023-11-19 07:35:30,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2023-11-19 07:35:30,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:30,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2023-11-19 07:35:30,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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) [2023-11-19 07:35:30,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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) [2023-11-19 07:35:30,351 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 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) [2023-11-19 07:35:30,351 INFO L175 Difference]: Start difference. First operand has 39 places, 14 transitions, 37 flow. Second operand 3 states and 446 transitions. [2023-11-19 07:35:30,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 16 transitions, 75 flow [2023-11-19 07:35:30,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 16 transitions, 73 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:35:30,352 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2023-11-19 07:35:30,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2023-11-19 07:35:30,363 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -42 predicate places. [2023-11-19 07:35:30,364 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2023-11-19 07:35:30,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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) [2023-11-19 07:35:30,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (22 of 23 remaining) [2023-11-19 07:35:30,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2023-11-19 07:35:30,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2023-11-19 07:35:30,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2023-11-19 07:35:30,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2023-11-19 07:35:30,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2023-11-19 07:35:30,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2023-11-19 07:35:30,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2023-11-19 07:35:30,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 23 remaining) [2023-11-19 07:35:30,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 23 remaining) [2023-11-19 07:35:30,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 23 remaining) [2023-11-19 07:35:30,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 23 remaining) [2023-11-19 07:35:30,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2023-11-19 07:35:30,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2023-11-19 07:35:30,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2023-11-19 07:35:30,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2023-11-19 07:35:30,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2023-11-19 07:35:30,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2023-11-19 07:35:30,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2023-11-19 07:35:30,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2023-11-19 07:35:30,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2023-11-19 07:35:30,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2023-11-19 07:35:30,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2023-11-19 07:35:30,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:35:30,373 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-11-19 07:35:30,379 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:35:30,380 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:35:30,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:35:30 BasicIcfg [2023-11-19 07:35:30,384 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:35:30,385 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:35:30,385 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:35:30,386 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:35:30,386 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:19" (3/4) ... [2023-11-19 07:35:30,388 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:35:30,391 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2023-11-19 07:35:30,392 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2023-11-19 07:35:30,397 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-19 07:35:30,398 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:35:30,398 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:35:30,398 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:35:30,493 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:35:30,493 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:35:30,493 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:35:30,494 INFO L158 Benchmark]: Toolchain (without parser) took 13048.96ms. Allocated memory was 134.2MB in the beginning and 333.4MB in the end (delta: 199.2MB). Free memory was 87.6MB in the beginning and 177.5MB in the end (delta: -89.9MB). Peak memory consumption was 111.9MB. Max. memory is 16.1GB. [2023-11-19 07:35:30,495 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:35:30,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 646.45ms. Allocated memory is still 134.2MB. Free memory was 87.6MB in the beginning and 67.1MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:35:30,495 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.13ms. Allocated memory is still 134.2MB. Free memory was 67.1MB in the beginning and 64.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:30,496 INFO L158 Benchmark]: Boogie Preprocessor took 44.83ms. Allocated memory is still 134.2MB. Free memory was 64.6MB in the beginning and 62.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:30,496 INFO L158 Benchmark]: RCFGBuilder took 872.90ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 62.5MB in the beginning and 141.4MB in the end (delta: -78.9MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2023-11-19 07:35:30,497 INFO L158 Benchmark]: TraceAbstraction took 11278.49ms. Allocated memory was 176.2MB in the beginning and 333.4MB in the end (delta: 157.3MB). Free memory was 140.4MB in the beginning and 182.8MB in the end (delta: -42.4MB). Peak memory consumption was 114.8MB. Max. memory is 16.1GB. [2023-11-19 07:35:30,497 INFO L158 Benchmark]: Witness Printer took 108.58ms. Allocated memory is still 333.4MB. Free memory was 182.8MB in the beginning and 177.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:35:30,499 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 646.45ms. Allocated memory is still 134.2MB. Free memory was 87.6MB in the beginning and 67.1MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.13ms. Allocated memory is still 134.2MB. Free memory was 67.1MB in the beginning and 64.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.83ms. Allocated memory is still 134.2MB. Free memory was 64.6MB in the beginning and 62.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 872.90ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 62.5MB in the beginning and 141.4MB in the end (delta: -78.9MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * TraceAbstraction took 11278.49ms. Allocated memory was 176.2MB in the beginning and 333.4MB in the end (delta: 157.3MB). Free memory was 140.4MB in the beginning and 182.8MB in the end (delta: -42.4MB). Peak memory consumption was 114.8MB. Max. memory is 16.1GB. * Witness Printer took 108.58ms. Allocated memory is still 333.4MB. Free memory was 182.8MB in the beginning and 177.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6s, 168 PlacesBefore, 66 PlacesAfterwards, 159 TransitionsBefore, 55 TransitionsAfterwards, 8714 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 80 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 122 TotalNumberOfCompositions, 25264 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9203, independent: 8775, independent conditional: 0, independent unconditional: 8775, dependent: 428, dependent conditional: 0, dependent unconditional: 428, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4489, independent: 4434, independent conditional: 0, independent unconditional: 4434, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9203, independent: 4341, independent conditional: 0, independent unconditional: 4341, dependent: 373, dependent conditional: 0, dependent unconditional: 373, unknown: 4489, unknown conditional: 0, unknown unconditional: 4489] , Statistics on independence cache: Total cache size (in pairs): 443, Positive cache size: 412, Positive conditional cache size: 0, Positive unconditional cache size: 412, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: 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 7 procedures, 215 locations, 23 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 304 IncrementalHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 28 mSDtfsCounter, 304 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:35:30,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b111307d-eeb0-4680-b13c-0df28bbc0478/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE