./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/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_e48ae979-8ee1-445d-a79d-ecbd2052c04e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/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_e48ae979-8ee1-445d-a79d-ecbd2052c04e/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 ec72a571c515701a06aa24404f70bcf9f40028e7df85d67cfca81a233c8469ca --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:45:58,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:45:58,487 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:45:58,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:45:58,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:45:58,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:45:58,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:45:58,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:45:58,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:45:58,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:45:58,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:45:58,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:45:58,553 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:45:58,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:45:58,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:45:58,556 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:45:58,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:45:58,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:45:58,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:45:58,558 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:45:58,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:45:58,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:45:58,560 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:45:58,560 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:45:58,561 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:45:58,561 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:45:58,562 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:45:58,563 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:45:58,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:45:58,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:45:58,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:58,566 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:45:58,566 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:45:58,567 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:45:58,567 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:45:58,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:45:58,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:45:58,568 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:45:58,568 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:45:58,568 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:45:58,569 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:45:58,569 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_e48ae979-8ee1-445d-a79d-ecbd2052c04e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec72a571c515701a06aa24404f70bcf9f40028e7df85d67cfca81a233c8469ca [2023-11-19 07:45:58,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:45:58,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:45:58,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:45:58,915 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:45:58,916 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:45:58,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race.i [2023-11-19 07:46:02,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:02,458 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:02,461 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race.i [2023-11-19 07:46:02,493 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/bin/uautomizer-verify-uCwYo4JHxu/data/3ab520ae9/24a3c23bde0d40a38c049d473e3771bc/FLAG6c8d4831d [2023-11-19 07:46:02,509 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/bin/uautomizer-verify-uCwYo4JHxu/data/3ab520ae9/24a3c23bde0d40a38c049d473e3771bc [2023-11-19 07:46:02,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:02,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:02,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:02,515 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:02,522 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:02,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:02" (1/1) ... [2023-11-19 07:46:02,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c20900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:02, skipping insertion in model container [2023-11-19 07:46:02,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:02" (1/1) ... [2023-11-19 07:46:02,576 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:02,811 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:46:03,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:03,078 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:03,093 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:46:03,123 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:03,235 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:03,242 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:03,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:03 WrapperNode [2023-11-19 07:46:03,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:03,244 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:03,244 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:03,244 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:03,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:03" (1/1) ... [2023-11-19 07:46:03,278 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:03" (1/1) ... [2023-11-19 07:46:03,315 INFO L138 Inliner]: procedures = 269, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2023-11-19 07:46:03,316 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:03,317 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:03,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:03,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:03,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:03" (1/1) ... [2023-11-19 07:46:03,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:03" (1/1) ... [2023-11-19 07:46:03,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:03" (1/1) ... [2023-11-19 07:46:03,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:03" (1/1) ... [2023-11-19 07:46:03,361 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:03" (1/1) ... [2023-11-19 07:46:03,364 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:03" (1/1) ... [2023-11-19 07:46:03,367 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:03" (1/1) ... [2023-11-19 07:46:03,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:03" (1/1) ... [2023-11-19 07:46:03,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:03,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:03,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:03,380 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:03,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:03" (1/1) ... [2023-11-19 07:46:03,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:03,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:03,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:03,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:46:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:46:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:46:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:46:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:46:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:46:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:46:03,445 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-19 07:46:03,445 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-19 07:46:03,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:03,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:03,447 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 07:46:03,604 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:03,606 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:03,880 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:03,891 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:03,897 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:46:03,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:03 BoogieIcfgContainer [2023-11-19 07:46:03,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:03,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:03,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:03,911 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:03,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:02" (1/3) ... [2023-11-19 07:46:03,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44df14e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:03, skipping insertion in model container [2023-11-19 07:46:03,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:03" (2/3) ... [2023-11-19 07:46:03,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44df14e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:03, skipping insertion in model container [2023-11-19 07:46:03,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:03" (3/3) ... [2023-11-19 07:46:03,917 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic-race.i [2023-11-19 07:46:03,927 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:46:03,939 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:03,939 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:46:03,939 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:46:04,020 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:46:04,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 109 transitions, 225 flow [2023-11-19 07:46:04,161 INFO L124 PetriNetUnfolderBase]: 6/160 cut-off events. [2023-11-19 07:46:04,161 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:46:04,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 160 events. 6/160 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 320 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 80. Up to 4 conditions per place. [2023-11-19 07:46:04,167 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 109 transitions, 225 flow [2023-11-19 07:46:04,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 109 transitions, 225 flow [2023-11-19 07:46:04,177 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:46:04,187 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 109 transitions, 225 flow [2023-11-19 07:46:04,190 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 109 transitions, 225 flow [2023-11-19 07:46:04,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 109 transitions, 225 flow [2023-11-19 07:46:04,241 INFO L124 PetriNetUnfolderBase]: 6/160 cut-off events. [2023-11-19 07:46:04,248 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:46:04,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 160 events. 6/160 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 320 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 80. Up to 4 conditions per place. [2023-11-19 07:46:04,254 INFO L119 LiptonReduction]: Number of co-enabled transitions 1740 [2023-11-19 07:46:09,761 INFO L134 LiptonReduction]: Checked pairs total: 2171 [2023-11-19 07:46:09,761 INFO L136 LiptonReduction]: Total number of compositions: 101 [2023-11-19 07:46:09,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:09,785 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;@1d3c288d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:09,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 07:46:09,789 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:46:09,789 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-19 07:46:09,789 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:09,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:09,790 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-19 07:46:09,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:46:09,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:09,796 INFO L85 PathProgramCache]: Analyzing trace with hash 12350, now seen corresponding path program 1 times [2023-11-19 07:46:09,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:09,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878257405] [2023-11-19 07:46:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:09,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:09,981 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 07:46:09,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:09,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878257405] [2023-11-19 07:46:09,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878257405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:09,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:09,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:46:09,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011538057] [2023-11-19 07:46:09,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:09,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:46:10,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:10,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:46:10,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:46:10,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 210 [2023-11-19 07:46:10,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 49 flow. Second operand has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 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 07:46:10,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:10,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 210 [2023-11-19 07:46:10,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:10,128 INFO L124 PetriNetUnfolderBase]: 19/69 cut-off events. [2023-11-19 07:46:10,128 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:46:10,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 69 events. 19/69 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 235 event pairs, 18 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 101. Up to 55 conditions per place. [2023-11-19 07:46:10,132 INFO L140 encePairwiseOnDemand]: 206/210 looper letters, 13 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2023-11-19 07:46:10,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 17 transitions, 67 flow [2023-11-19 07:46:10,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:46:10,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:46:10,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 225 transitions. [2023-11-19 07:46:10,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2023-11-19 07:46:10,155 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 225 transitions. [2023-11-19 07:46:10,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 225 transitions. [2023-11-19 07:46:10,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:10,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 225 transitions. [2023-11-19 07:46:10,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 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 07:46:10,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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 07:46:10,175 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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 07:46:10,177 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 49 flow. Second operand 2 states and 225 transitions. [2023-11-19 07:46:10,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 17 transitions, 67 flow [2023-11-19 07:46:10,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 17 transitions, 67 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:46:10,183 INFO L231 Difference]: Finished difference. Result has 20 places, 17 transitions, 41 flow [2023-11-19 07:46:10,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=41, PETRI_PLACES=20, PETRI_TRANSITIONS=17} [2023-11-19 07:46:10,191 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -3 predicate places. [2023-11-19 07:46:10,191 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 17 transitions, 41 flow [2023-11-19 07:46:10,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 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 07:46:10,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:10,192 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:46:10,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:46:10,193 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:46:10,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:10,195 INFO L85 PathProgramCache]: Analyzing trace with hash 11855336, now seen corresponding path program 1 times [2023-11-19 07:46:10,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:10,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661416004] [2023-11-19 07:46:10,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:10,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:10,339 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 07:46:10,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:10,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661416004] [2023-11-19 07:46:10,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661416004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:10,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:10,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:46:10,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641520644] [2023-11-19 07:46:10,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:10,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:46:10,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:10,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:46:10,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:10,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 210 [2023-11-19 07:46:10,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 17 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 07:46:10,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:10,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 210 [2023-11-19 07:46:10,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:10,433 INFO L124 PetriNetUnfolderBase]: 24/82 cut-off events. [2023-11-19 07:46:10,434 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:46:10,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 82 events. 24/82 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 299 event pairs, 13 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 157. Up to 50 conditions per place. [2023-11-19 07:46:10,435 INFO L140 encePairwiseOnDemand]: 206/210 looper letters, 14 selfloop transitions, 3 changer transitions 3/22 dead transitions. [2023-11-19 07:46:10,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 22 transitions, 91 flow [2023-11-19 07:46:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:46:10,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:46:10,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2023-11-19 07:46:10,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5095238095238095 [2023-11-19 07:46:10,440 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 321 transitions. [2023-11-19 07:46:10,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 321 transitions. [2023-11-19 07:46:10,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:10,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 321 transitions. [2023-11-19 07:46:10,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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 07:46:10,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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 07:46:10,446 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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 07:46:10,446 INFO L175 Difference]: Start difference. First operand has 20 places, 17 transitions, 41 flow. Second operand 3 states and 321 transitions. [2023-11-19 07:46:10,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 22 transitions, 91 flow [2023-11-19 07:46:10,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 22 transitions, 91 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:46:10,448 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 56 flow [2023-11-19 07:46:10,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2023-11-19 07:46:10,449 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places. [2023-11-19 07:46:10,449 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 56 flow [2023-11-19 07:46:10,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 07:46:10,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:10,450 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:46:10,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:46:10,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:46:10,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:10,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1472376656, now seen corresponding path program 1 times [2023-11-19 07:46:10,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:10,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191514706] [2023-11-19 07:46:10,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:10,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:10,501 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:46:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:10,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:46:10,553 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:46:10,554 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-11-19 07:46:10,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-11-19 07:46:10,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-11-19 07:46:10,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2023-11-19 07:46:10,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-11-19 07:46:10,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-11-19 07:46:10,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-11-19 07:46:10,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-11-19 07:46:10,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:46:10,562 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:46:10,566 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:46:10,566 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:46:10,602 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:46:10,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 126 transitions, 268 flow [2023-11-19 07:46:10,677 INFO L124 PetriNetUnfolderBase]: 11/282 cut-off events. [2023-11-19 07:46:10,678 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:46:10,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 282 events. 11/282 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 666 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 162. Up to 8 conditions per place. [2023-11-19 07:46:10,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 126 transitions, 268 flow [2023-11-19 07:46:10,684 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 126 transitions, 268 flow [2023-11-19 07:46:10,684 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:46:10,684 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 126 transitions, 268 flow [2023-11-19 07:46:10,684 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 126 transitions, 268 flow [2023-11-19 07:46:10,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 126 transitions, 268 flow [2023-11-19 07:46:10,726 INFO L124 PetriNetUnfolderBase]: 11/282 cut-off events. [2023-11-19 07:46:10,727 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:46:10,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 282 events. 11/282 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 666 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 162. Up to 8 conditions per place. [2023-11-19 07:46:10,735 INFO L119 LiptonReduction]: Number of co-enabled transitions 4320 [2023-11-19 07:46:15,492 INFO L134 LiptonReduction]: Checked pairs total: 7761 [2023-11-19 07:46:15,493 INFO L136 LiptonReduction]: Total number of compositions: 108 [2023-11-19 07:46:15,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:15,497 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;@1d3c288d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:15,497 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-19 07:46:15,499 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:46:15,499 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-19 07:46:15,499 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:15,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:15,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-19 07:46:15,500 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:46:15,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:15,501 INFO L85 PathProgramCache]: Analyzing trace with hash 20445, now seen corresponding path program 1 times [2023-11-19 07:46:15,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:15,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455718982] [2023-11-19 07:46:15,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:15,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:15,523 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 07:46:15,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:15,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455718982] [2023-11-19 07:46:15,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455718982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:15,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:15,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:46:15,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917788092] [2023-11-19 07:46:15,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:15,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:46:15,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:15,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:46:15,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:46:15,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 234 [2023-11-19 07:46:15,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 82 flow. Second operand has 2 states, 2 states have (on average 120.0) internal successors, (240), 2 states have internal predecessors, (240), 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 07:46:15,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:15,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 234 [2023-11-19 07:46:15,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:15,686 INFO L124 PetriNetUnfolderBase]: 382/792 cut-off events. [2023-11-19 07:46:15,687 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-19 07:46:15,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 792 events. 382/792 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4100 event pairs, 374 based on Foata normal form. 0/695 useless extension candidates. Maximal degree in co-relation 630. Up to 673 conditions per place. [2023-11-19 07:46:15,696 INFO L140 encePairwiseOnDemand]: 230/234 looper letters, 21 selfloop transitions, 0 changer transitions 0/29 dead transitions. [2023-11-19 07:46:15,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 116 flow [2023-11-19 07:46:15,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:46:15,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:46:15,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 263 transitions. [2023-11-19 07:46:15,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.561965811965812 [2023-11-19 07:46:15,701 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 263 transitions. [2023-11-19 07:46:15,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 263 transitions. [2023-11-19 07:46:15,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:15,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 263 transitions. [2023-11-19 07:46:15,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 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 07:46:15,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 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 07:46:15,707 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 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 07:46:15,707 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 82 flow. Second operand 2 states and 263 transitions. [2023-11-19 07:46:15,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 116 flow [2023-11-19 07:46:15,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 29 transitions, 116 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:46:15,711 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 74 flow [2023-11-19 07:46:15,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=74, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2023-11-19 07:46:15,715 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-11-19 07:46:15,715 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 74 flow [2023-11-19 07:46:15,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 120.0) internal successors, (240), 2 states have internal predecessors, (240), 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 07:46:15,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:15,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:46:15,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:46:15,717 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:46:15,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:15,718 INFO L85 PathProgramCache]: Analyzing trace with hash 19644592, now seen corresponding path program 1 times [2023-11-19 07:46:15,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:15,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722626866] [2023-11-19 07:46:15,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:15,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:15,793 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 07:46:15,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:15,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722626866] [2023-11-19 07:46:15,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722626866] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:15,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:15,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:46:15,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644621759] [2023-11-19 07:46:15,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:15,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:46:15,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:15,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:46:15,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:15,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 234 [2023-11-19 07:46:15,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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 07:46:15,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:15,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 234 [2023-11-19 07:46:15,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:16,040 INFO L124 PetriNetUnfolderBase]: 574/1132 cut-off events. [2023-11-19 07:46:16,041 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-19 07:46:16,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2196 conditions, 1132 events. 574/1132 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 6180 event pairs, 350 based on Foata normal form. 0/1015 useless extension candidates. Maximal degree in co-relation 2191. Up to 736 conditions per place. [2023-11-19 07:46:16,048 INFO L140 encePairwiseOnDemand]: 229/234 looper letters, 30 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2023-11-19 07:46:16,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 40 transitions, 164 flow [2023-11-19 07:46:16,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:46:16,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:46:16,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2023-11-19 07:46:16,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5370370370370371 [2023-11-19 07:46:16,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 377 transitions. [2023-11-19 07:46:16,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 377 transitions. [2023-11-19 07:46:16,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:16,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 377 transitions. [2023-11-19 07:46:16,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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 07:46:16,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 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 07:46:16,058 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 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 07:46:16,059 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 74 flow. Second operand 3 states and 377 transitions. [2023-11-19 07:46:16,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 40 transitions, 164 flow [2023-11-19 07:46:16,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:46:16,062 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 104 flow [2023-11-19 07:46:16,062 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2023-11-19 07:46:16,064 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2023-11-19 07:46:16,064 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 104 flow [2023-11-19 07:46:16,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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 07:46:16,065 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:16,065 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:16,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:46:16,067 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:46:16,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:16,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1655234422, now seen corresponding path program 1 times [2023-11-19 07:46:16,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:16,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197873045] [2023-11-19 07:46:16,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:16,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:16,143 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 07:46:16,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:16,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197873045] [2023-11-19 07:46:16,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197873045] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:16,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:16,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:46:16,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091505920] [2023-11-19 07:46:16,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:16,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:46:16,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:16,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:46:16,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:16,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 234 [2023-11-19 07:46:16,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 07:46:16,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:16,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 234 [2023-11-19 07:46:16,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:16,400 INFO L124 PetriNetUnfolderBase]: 643/1292 cut-off events. [2023-11-19 07:46:16,400 INFO L125 PetriNetUnfolderBase]: For 357/367 co-relation queries the response was YES. [2023-11-19 07:46:16,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2827 conditions, 1292 events. 643/1292 cut-off events. For 357/367 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7656 event pairs, 370 based on Foata normal form. 0/1181 useless extension candidates. Maximal degree in co-relation 2820. Up to 837 conditions per place. [2023-11-19 07:46:16,411 INFO L140 encePairwiseOnDemand]: 228/234 looper letters, 33 selfloop transitions, 7 changer transitions 0/48 dead transitions. [2023-11-19 07:46:16,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 234 flow [2023-11-19 07:46:16,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:46:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:46:16,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2023-11-19 07:46:16,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5327635327635327 [2023-11-19 07:46:16,414 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 374 transitions. [2023-11-19 07:46:16,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions. [2023-11-19 07:46:16,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:16,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions. [2023-11-19 07:46:16,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 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 07:46:16,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 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 07:46:16,419 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 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 07:46:16,420 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 104 flow. Second operand 3 states and 374 transitions. [2023-11-19 07:46:16,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 234 flow [2023-11-19 07:46:16,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:46:16,429 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 152 flow [2023-11-19 07:46:16,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2023-11-19 07:46:16,434 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2023-11-19 07:46:16,434 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 152 flow [2023-11-19 07:46:16,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 07:46:16,435 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:16,435 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:16,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:46:16,435 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:46:16,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:16,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1011210458, now seen corresponding path program 1 times [2023-11-19 07:46:16,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:16,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761382867] [2023-11-19 07:46:16,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:16,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:16,509 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:46:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:16,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:46:16,553 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:46:16,554 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-11-19 07:46:16,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-11-19 07:46:16,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-11-19 07:46:16,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-11-19 07:46:16,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2023-11-19 07:46:16,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2023-11-19 07:46:16,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-11-19 07:46:16,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-11-19 07:46:16,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-11-19 07:46:16,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:46:16,558 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:46:16,564 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-11-19 07:46:16,564 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:46:16,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem10 [2023-11-19 07:46:16,607 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 07:46:16,608 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 07:46:16,608 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 07:46:16,609 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 07:46:16,609 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 07:46:16,610 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 07:46:16,610 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 07:46:16,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:46:16 BasicIcfg [2023-11-19 07:46:16,629 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:46:16,630 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:46:16,630 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:46:16,631 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:46:16,632 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:03" (3/4) ... [2023-11-19 07:46:16,634 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:46:16,635 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:46:16,636 INFO L158 Benchmark]: Toolchain (without parser) took 14122.64ms. Allocated memory was 117.4MB in the beginning and 188.7MB in the end (delta: 71.3MB). Free memory was 70.2MB in the beginning and 146.1MB in the end (delta: -75.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:46:16,636 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:46:16,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 728.57ms. Allocated memory was 117.4MB in the beginning and 157.3MB in the end (delta: 39.8MB). Free memory was 69.9MB in the beginning and 126.0MB in the end (delta: -56.1MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2023-11-19 07:46:16,637 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.97ms. Allocated memory is still 157.3MB. Free memory was 126.0MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:16,640 INFO L158 Benchmark]: Boogie Preprocessor took 62.41ms. Allocated memory is still 157.3MB. Free memory was 123.9MB in the beginning and 121.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:16,644 INFO L158 Benchmark]: RCFGBuilder took 522.54ms. Allocated memory is still 157.3MB. Free memory was 121.7MB in the beginning and 105.0MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:46:16,644 INFO L158 Benchmark]: TraceAbstraction took 12722.61ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 103.7MB in the beginning and 146.1MB in the end (delta: -42.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:46:16,644 INFO L158 Benchmark]: Witness Printer took 5.51ms. Allocated memory is still 188.7MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:46:16,648 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 728.57ms. Allocated memory was 117.4MB in the beginning and 157.3MB in the end (delta: 39.8MB). Free memory was 69.9MB in the beginning and 126.0MB in the end (delta: -56.1MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.97ms. Allocated memory is still 157.3MB. Free memory was 126.0MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.41ms. Allocated memory is still 157.3MB. Free memory was 123.9MB in the beginning and 121.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 522.54ms. Allocated memory is still 157.3MB. Free memory was 121.7MB in the beginning and 105.0MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12722.61ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 103.7MB in the beginning and 146.1MB in the end (delta: -42.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.51ms. Allocated memory is still 188.7MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem10 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6s, 108 PlacesBefore, 23 PlacesAfterwards, 109 TransitionsBefore, 21 TransitionsAfterwards, 1740 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 101 TotalNumberOfCompositions, 2171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1601, independent: 1530, independent conditional: 0, independent unconditional: 1530, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 907, independent: 888, independent conditional: 0, independent unconditional: 888, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1601, independent: 642, independent conditional: 0, independent unconditional: 642, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 907, unknown conditional: 0, unknown unconditional: 907] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8s, 126 PlacesBefore, 36 PlacesAfterwards, 126 TransitionsBefore, 33 TransitionsAfterwards, 4320 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 108 TotalNumberOfCompositions, 7761 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4108, independent: 3950, independent conditional: 0, independent unconditional: 3950, dependent: 158, dependent conditional: 0, dependent unconditional: 158, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2172, independent: 2143, independent conditional: 0, independent unconditional: 2143, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4108, independent: 1807, independent conditional: 0, independent unconditional: 1807, dependent: 129, dependent conditional: 0, dependent unconditional: 129, unknown: 2172, unknown conditional: 0, unknown unconditional: 2172] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1038]: Data race detected [2023-11-19 07:46:16,676 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem10 [2023-11-19 07:46:16,679 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 07:46:16,679 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 07:46:16,680 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 07:46:16,681 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 07:46:16,681 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 07:46:16,682 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 07:46:16,688 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 07:46:16,695 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 07:46:16,697 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem10 [2023-11-19 07:46:16,698 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 07:46:16,699 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 07:46:16,700 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 07:46:16,700 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 07:46:16,700 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 07:46:16,701 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated Data race detected The following path leads to a data race: [L1019] 0 int data = 0; [L1020] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1028] 0 int threads_total = __VERIFIER_nondet_int(); [L1029] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) [L1029] RET 0 assume_abort_if_not(threads_total >= 0) [L1030] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); [L1030] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); [L1031] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_total=1, tids={5:0}] [L1031] COND TRUE 0 i < threads_total [L1032] EXPR 0 \read(*tids) [L1032] EXPR 0 tids[i] [L1032] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=1, tids={5:0}] [L1031] 0 i++ VAL [arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=1, tids={5:0}] [L1031] COND FALSE 0 !(i < threads_total) [L1034] 0 int i = 0; VAL [arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=1, tids={5:0}] [L1034] COND FALSE 0 !(i < threads_total - 1) [L1037] EXPR 0 \read(*tids) [L1037] 0 free(tids) [L1038] 0 return data; VAL [arg={0:0}, data=0, data_mutex={1:0}, threads_total=1, tids={5:0}] [L1023] 1 data = __VERIFIER_nondet_int() VAL [arg={0:0}, arg={0:0}, data=-2, data_mutex={1:0}] [L1038] 0 return data; VAL [arg={0:0}, arg={0:0}, data=-2, data_mutex={1:0}, threads_total=1, tids={5:0}] Now there is a data race on ~data~0 between C: data = __VERIFIER_nondet_int() [1023] and C: return data; [1038] - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1023]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 122 locations, 8 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: 6.5s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=2, InterpolantAutomatonStates: 5, 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, 0.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 138 locations, 9 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: 6.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 157 IncrementalHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 1 mSDtfsCounter, 157 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=3, InterpolantAutomatonStates: 8, 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, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:46:16,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e48ae979-8ee1-445d-a79d-ecbd2052c04e/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE