./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX --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 47827fdca8ccc83dae99015d656cdcf2872ea585121905304e5ffb2ef40b4eac --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:08:56,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:08:57,027 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 16:08:57,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:08:57,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:08:57,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:08:57,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:08:57,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:08:57,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:08:57,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:08:57,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:08:57,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:08:57,084 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:08:57,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:08:57,085 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:08:57,085 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:08:57,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:08:57,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:08:57,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:08:57,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:08:57,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:08:57,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:08:57,088 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 16:08:57,088 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:08:57,089 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:08:57,089 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:08:57,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:08:57,089 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:08:57,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:08:57,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:08:57,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:08:57,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:08:57,095 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:08:57,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:08:57,096 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:08:57,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:08:57,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:08:57,104 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:08:57,105 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:08:57,105 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:08:57,105 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:08:57,106 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_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47827fdca8ccc83dae99015d656cdcf2872ea585121905304e5ffb2ef40b4eac [2024-11-08 16:08:57,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:08:57,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:08:57,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:08:57,455 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:08:57,456 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:08:57,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i Unable to find full path for "g++" [2024-11-08 16:08:59,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:08:59,647 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:08:59,651 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i [2024-11-08 16:08:59,669 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/data/658aa0b6b/fdbd53d24ed1441e93c28c266673ecac/FLAGce87eaaf7 [2024-11-08 16:08:59,717 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/data/658aa0b6b/fdbd53d24ed1441e93c28c266673ecac [2024-11-08 16:08:59,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:08:59,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:08:59,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:08:59,728 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:08:59,734 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:08:59,735 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:08:59" (1/1) ... [2024-11-08 16:08:59,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61883f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:59, skipping insertion in model container [2024-11-08 16:08:59,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:08:59" (1/1) ... [2024-11-08 16:08:59,807 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:09:00,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:09:00,243 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:09:00,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:09:00,365 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:09:00,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:00 WrapperNode [2024-11-08 16:09:00,366 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:09:00,367 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:09:00,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:09:00,368 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:09:00,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:00" (1/1) ... [2024-11-08 16:09:00,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:00" (1/1) ... [2024-11-08 16:09:00,410 INFO L138 Inliner]: procedures = 159, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57 [2024-11-08 16:09:00,411 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:09:00,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:09:00,412 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:09:00,412 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:09:00,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:00" (1/1) ... [2024-11-08 16:09:00,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:00" (1/1) ... [2024-11-08 16:09:00,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:00" (1/1) ... [2024-11-08 16:09:00,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:00" (1/1) ... [2024-11-08 16:09:00,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:00" (1/1) ... [2024-11-08 16:09:00,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:00" (1/1) ... [2024-11-08 16:09:00,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:00" (1/1) ... [2024-11-08 16:09:00,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:00" (1/1) ... [2024-11-08 16:09:00,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:09:00,438 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:09:00,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:09:00,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:09:00,439 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:00" (1/1) ... [2024-11-08 16:09:00,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:09:00,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:09:00,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:09:00,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:09:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:09:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:09:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 16:09:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-08 16:09:00,527 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-08 16:09:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:09:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:09:00,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:09:00,532 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:09:00,688 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:09:00,690 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:09:00,876 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:09:00,876 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:09:00,896 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:09:00,896 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 16:09:00,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:09:00 BoogieIcfgContainer [2024-11-08 16:09:00,897 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:09:00,899 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:09:00,899 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:09:00,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:09:00,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:08:59" (1/3) ... [2024-11-08 16:09:00,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2096c649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:09:00, skipping insertion in model container [2024-11-08 16:09:00,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:00" (2/3) ... [2024-11-08 16:09:00,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2096c649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:09:00, skipping insertion in model container [2024-11-08 16:09:00,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:09:00" (3/3) ... [2024-11-08 16:09:00,905 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-outer-race.i [2024-11-08 16:09:00,922 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:09:00,923 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-08 16:09:00,923 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:09:00,994 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 16:09:01,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions, 196 flow [2024-11-08 16:09:01,085 INFO L124 PetriNetUnfolderBase]: 7/129 cut-off events. [2024-11-08 16:09:01,085 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:09:01,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 129 events. 7/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 185 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 68. Up to 4 conditions per place. [2024-11-08 16:09:01,090 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 96 transitions, 196 flow [2024-11-08 16:09:01,098 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 96 transitions, 196 flow [2024-11-08 16:09:01,113 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:09:01,121 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@427bb8f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:09:01,121 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-08 16:09:01,133 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:09:01,133 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-08 16:09:01,133 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:09:01,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:01,134 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:01,135 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 16:09:01,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:01,141 INFO L85 PathProgramCache]: Analyzing trace with hash -152699460, now seen corresponding path program 1 times [2024-11-08 16:09:01,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:01,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363860880] [2024-11-08 16:09:01,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:01,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:01,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:01,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:09:01,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363860880] [2024-11-08 16:09:01,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363860880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:01,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:01,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:09:01,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256607116] [2024-11-08 16:09:01,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:01,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:09:01,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:09:01,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:09:01,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:09:01,470 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 96 [2024-11-08 16:09:01,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 96 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:01,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:01,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 96 [2024-11-08 16:09:01,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:01,581 INFO L124 PetriNetUnfolderBase]: 34/297 cut-off events. [2024-11-08 16:09:01,581 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:09:01,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 297 events. 34/297 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1193 event pairs, 7 based on Foata normal form. 1/265 useless extension candidates. Maximal degree in co-relation 312. Up to 59 conditions per place. [2024-11-08 16:09:01,587 INFO L140 encePairwiseOnDemand]: 83/96 looper letters, 16 selfloop transitions, 8 changer transitions 1/104 dead transitions. [2024-11-08 16:09:01,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 104 transitions, 260 flow [2024-11-08 16:09:01,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:09:01,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:09:01,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2024-11-08 16:09:01,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9375 [2024-11-08 16:09:01,606 INFO L175 Difference]: Start difference. First operand has 95 places, 96 transitions, 196 flow. Second operand 3 states and 270 transitions. [2024-11-08 16:09:01,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 104 transitions, 260 flow [2024-11-08 16:09:01,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 104 transitions, 260 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:09:01,617 INFO L231 Difference]: Finished difference. Result has 99 places, 101 transitions, 260 flow [2024-11-08 16:09:01,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=99, PETRI_TRANSITIONS=101} [2024-11-08 16:09:01,627 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 4 predicate places. [2024-11-08 16:09:01,627 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 101 transitions, 260 flow [2024-11-08 16:09:01,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:01,628 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:01,629 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:01,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:09:01,629 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 16:09:01,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:01,630 INFO L85 PathProgramCache]: Analyzing trace with hash -699033465, now seen corresponding path program 1 times [2024-11-08 16:09:01,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:01,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573059147] [2024-11-08 16:09:01,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:01,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:01,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:01,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:09:01,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573059147] [2024-11-08 16:09:01,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573059147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:01,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:01,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:09:01,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359756028] [2024-11-08 16:09:01,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:01,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:09:01,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:09:01,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:09:01,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:09:01,753 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 96 [2024-11-08 16:09:01,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 101 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 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) [2024-11-08 16:09:01,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:01,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 96 [2024-11-08 16:09:01,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:01,858 INFO L124 PetriNetUnfolderBase]: 29/312 cut-off events. [2024-11-08 16:09:01,858 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 16:09:01,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 312 events. 29/312 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1413 event pairs, 5 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 361. Up to 45 conditions per place. [2024-11-08 16:09:01,861 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 8 selfloop transitions, 3 changer transitions 0/105 dead transitions. [2024-11-08 16:09:01,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 105 transitions, 290 flow [2024-11-08 16:09:01,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:09:01,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:09:01,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2024-11-08 16:09:01,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9479166666666666 [2024-11-08 16:09:01,868 INFO L175 Difference]: Start difference. First operand has 99 places, 101 transitions, 260 flow. Second operand 3 states and 273 transitions. [2024-11-08 16:09:01,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 105 transitions, 290 flow [2024-11-08 16:09:01,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 105 transitions, 274 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:09:01,875 INFO L231 Difference]: Finished difference. Result has 100 places, 103 transitions, 266 flow [2024-11-08 16:09:01,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=100, PETRI_TRANSITIONS=103} [2024-11-08 16:09:01,878 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 5 predicate places. [2024-11-08 16:09:01,878 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 103 transitions, 266 flow [2024-11-08 16:09:01,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 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) [2024-11-08 16:09:01,879 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:01,879 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:01,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:09:01,880 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 16:09:01,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:01,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1097334428, now seen corresponding path program 1 times [2024-11-08 16:09:01,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:01,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36331924] [2024-11-08 16:09:01,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:01,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:01,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:01,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:09:01,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36331924] [2024-11-08 16:09:01,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36331924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:01,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:01,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:09:01,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677378224] [2024-11-08 16:09:01,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:01,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:09:01,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:09:01,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:09:01,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:09:02,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 96 [2024-11-08 16:09:02,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 103 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:02,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:02,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 96 [2024-11-08 16:09:02,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:02,126 INFO L124 PetriNetUnfolderBase]: 56/460 cut-off events. [2024-11-08 16:09:02,126 INFO L125 PetriNetUnfolderBase]: For 63/71 co-relation queries the response was YES. [2024-11-08 16:09:02,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 460 events. 56/460 cut-off events. For 63/71 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2510 event pairs, 23 based on Foata normal form. 4/418 useless extension candidates. Maximal degree in co-relation 629. Up to 104 conditions per place. [2024-11-08 16:09:02,130 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 19 selfloop transitions, 7 changer transitions 0/110 dead transitions. [2024-11-08 16:09:02,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 110 transitions, 338 flow [2024-11-08 16:09:02,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:09:02,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:09:02,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2024-11-08 16:09:02,132 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.90625 [2024-11-08 16:09:02,133 INFO L175 Difference]: Start difference. First operand has 100 places, 103 transitions, 266 flow. Second operand 3 states and 261 transitions. [2024-11-08 16:09:02,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 110 transitions, 338 flow [2024-11-08 16:09:02,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 110 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:09:02,138 INFO L231 Difference]: Finished difference. Result has 102 places, 108 transitions, 316 flow [2024-11-08 16:09:02,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=102, PETRI_TRANSITIONS=108} [2024-11-08 16:09:02,139 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 7 predicate places. [2024-11-08 16:09:02,139 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 108 transitions, 316 flow [2024-11-08 16:09:02,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:02,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:02,140 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:02,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:09:02,141 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 16:09:02,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:02,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1655493897, now seen corresponding path program 1 times [2024-11-08 16:09:02,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:02,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723522819] [2024-11-08 16:09:02,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:02,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:02,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:02,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:09:02,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723522819] [2024-11-08 16:09:02,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723522819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:02,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:02,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:09:02,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086839490] [2024-11-08 16:09:02,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:02,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:09:02,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:09:02,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:09:02,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:09:02,251 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 96 [2024-11-08 16:09:02,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 108 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:02,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:02,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 96 [2024-11-08 16:09:02,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:02,314 INFO L124 PetriNetUnfolderBase]: 38/370 cut-off events. [2024-11-08 16:09:02,315 INFO L125 PetriNetUnfolderBase]: For 62/69 co-relation queries the response was YES. [2024-11-08 16:09:02,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 370 events. 38/370 cut-off events. For 62/69 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1957 event pairs, 8 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 497. Up to 51 conditions per place. [2024-11-08 16:09:02,317 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 8 selfloop transitions, 5 changer transitions 0/111 dead transitions. [2024-11-08 16:09:02,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 111 transitions, 350 flow [2024-11-08 16:09:02,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:09:02,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:09:02,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2024-11-08 16:09:02,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9305555555555556 [2024-11-08 16:09:02,319 INFO L175 Difference]: Start difference. First operand has 102 places, 108 transitions, 316 flow. Second operand 3 states and 268 transitions. [2024-11-08 16:09:02,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 111 transitions, 350 flow [2024-11-08 16:09:02,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 111 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:09:02,324 INFO L231 Difference]: Finished difference. Result has 104 places, 111 transitions, 338 flow [2024-11-08 16:09:02,324 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=104, PETRI_TRANSITIONS=111} [2024-11-08 16:09:02,325 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 9 predicate places. [2024-11-08 16:09:02,325 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 111 transitions, 338 flow [2024-11-08 16:09:02,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:02,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:02,326 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:02,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:09:02,326 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 16:09:02,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:02,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1380578591, now seen corresponding path program 1 times [2024-11-08 16:09:02,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:02,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53115304] [2024-11-08 16:09:02,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:02,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:02,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:09:02,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53115304] [2024-11-08 16:09:02,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53115304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:02,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:02,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:09:02,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406467354] [2024-11-08 16:09:02,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:02,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:09:02,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:09:02,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:09:02,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:09:02,435 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 96 [2024-11-08 16:09:02,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 111 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:02,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:02,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 96 [2024-11-08 16:09:02,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:02,514 INFO L124 PetriNetUnfolderBase]: 66/483 cut-off events. [2024-11-08 16:09:02,514 INFO L125 PetriNetUnfolderBase]: For 156/164 co-relation queries the response was YES. [2024-11-08 16:09:02,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 483 events. 66/483 cut-off events. For 156/164 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2694 event pairs, 13 based on Foata normal form. 1/449 useless extension candidates. Maximal degree in co-relation 798. Up to 109 conditions per place. [2024-11-08 16:09:02,518 INFO L140 encePairwiseOnDemand]: 89/96 looper letters, 16 selfloop transitions, 11 changer transitions 1/118 dead transitions. [2024-11-08 16:09:02,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 118 transitions, 420 flow [2024-11-08 16:09:02,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:09:02,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:09:02,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2024-11-08 16:09:02,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2024-11-08 16:09:02,520 INFO L175 Difference]: Start difference. First operand has 104 places, 111 transitions, 338 flow. Second operand 3 states and 264 transitions. [2024-11-08 16:09:02,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 118 transitions, 420 flow [2024-11-08 16:09:02,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 118 transitions, 410 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:09:02,524 INFO L231 Difference]: Finished difference. Result has 106 places, 117 transitions, 412 flow [2024-11-08 16:09:02,525 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=106, PETRI_TRANSITIONS=117} [2024-11-08 16:09:02,525 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 11 predicate places. [2024-11-08 16:09:02,526 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 117 transitions, 412 flow [2024-11-08 16:09:02,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:02,526 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:02,526 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:02,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:09:02,527 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 16:09:02,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:02,527 INFO L85 PathProgramCache]: Analyzing trace with hash 684372105, now seen corresponding path program 1 times [2024-11-08 16:09:02,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:02,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465244741] [2024-11-08 16:09:02,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:02,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:02,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:02,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:09:02,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465244741] [2024-11-08 16:09:02,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465244741] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:09:02,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478078399] [2024-11-08 16:09:02,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:02,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:02,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:09:02,779 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:09:02,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:09:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:02,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:09:02,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:09:03,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:03,098 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:09:03,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478078399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:03,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:09:03,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-08 16:09:03,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311762557] [2024-11-08 16:09:03,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:03,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:09:03,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:09:03,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:09:03,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:09:03,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 96 [2024-11-08 16:09:03,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 117 transitions, 412 flow. Second operand has 5 states, 5 states have (on average 83.6) internal successors, (418), 5 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:03,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:03,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 96 [2024-11-08 16:09:03,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:03,299 INFO L124 PetriNetUnfolderBase]: 81/554 cut-off events. [2024-11-08 16:09:03,299 INFO L125 PetriNetUnfolderBase]: For 321/336 co-relation queries the response was YES. [2024-11-08 16:09:03,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1119 conditions, 554 events. 81/554 cut-off events. For 321/336 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3387 event pairs, 9 based on Foata normal form. 5/528 useless extension candidates. Maximal degree in co-relation 1017. Up to 85 conditions per place. [2024-11-08 16:09:03,304 INFO L140 encePairwiseOnDemand]: 89/96 looper letters, 13 selfloop transitions, 10 changer transitions 2/124 dead transitions. [2024-11-08 16:09:03,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 124 transitions, 460 flow [2024-11-08 16:09:03,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:09:03,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 16:09:03,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 600 transitions. [2024-11-08 16:09:03,308 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2024-11-08 16:09:03,308 INFO L175 Difference]: Start difference. First operand has 106 places, 117 transitions, 412 flow. Second operand 7 states and 600 transitions. [2024-11-08 16:09:03,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 124 transitions, 460 flow [2024-11-08 16:09:03,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 124 transitions, 424 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-08 16:09:03,314 INFO L231 Difference]: Finished difference. Result has 107 places, 118 transitions, 400 flow [2024-11-08 16:09:03,315 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=400, PETRI_PLACES=107, PETRI_TRANSITIONS=118} [2024-11-08 16:09:03,315 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 12 predicate places. [2024-11-08 16:09:03,316 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 118 transitions, 400 flow [2024-11-08 16:09:03,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.6) internal successors, (418), 5 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:03,316 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:03,317 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:03,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:09:03,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-08 16:09:03,521 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-08 16:09:03,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:03,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1755087472, now seen corresponding path program 1 times [2024-11-08 16:09:03,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:03,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112445140] [2024-11-08 16:09:03,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:03,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:09:03,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:09:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:09:03,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:09:03,572 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:09:03,573 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-08 16:09:03,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-08 16:09:03,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-08 16:09:03,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-08 16:09:03,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-08 16:09:03,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-08 16:09:03,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2024-11-08 16:09:03,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-08 16:09:03,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-08 16:09:03,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-08 16:09:03,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-08 16:09:03,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:09:03,577 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:03,580 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:09:03,580 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 16:09:03,602 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 16:09:03,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 124 transitions, 258 flow [2024-11-08 16:09:03,626 INFO L124 PetriNetUnfolderBase]: 10/198 cut-off events. [2024-11-08 16:09:03,626 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-08 16:09:03,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 198 events. 10/198 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 318 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 130. Up to 6 conditions per place. [2024-11-08 16:09:03,627 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 124 transitions, 258 flow [2024-11-08 16:09:03,629 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 124 transitions, 258 flow [2024-11-08 16:09:03,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:09:03,631 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@427bb8f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:09:03,631 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-08 16:09:03,634 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:09:03,635 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-08 16:09:03,635 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:09:03,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:03,635 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:03,635 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-08 16:09:03,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:03,636 INFO L85 PathProgramCache]: Analyzing trace with hash 707802812, now seen corresponding path program 1 times [2024-11-08 16:09:03,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:03,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555054532] [2024-11-08 16:09:03,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:03,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:03,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:09:03,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555054532] [2024-11-08 16:09:03,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555054532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:03,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:03,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:09:03,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4878075] [2024-11-08 16:09:03,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:03,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:09:03,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:09:03,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:09:03,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:09:03,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 124 [2024-11-08 16:09:03,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 124 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:03,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:03,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 124 [2024-11-08 16:09:03,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:04,064 INFO L124 PetriNetUnfolderBase]: 568/2355 cut-off events. [2024-11-08 16:09:04,064 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-08 16:09:04,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3385 conditions, 2355 events. 568/2355 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 19491 event pairs, 195 based on Foata normal form. 1/2094 useless extension candidates. Maximal degree in co-relation 2681. Up to 666 conditions per place. [2024-11-08 16:09:04,079 INFO L140 encePairwiseOnDemand]: 107/124 looper letters, 26 selfloop transitions, 11 changer transitions 1/138 dead transitions. [2024-11-08 16:09:04,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 138 transitions, 365 flow [2024-11-08 16:09:04,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:09:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:09:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2024-11-08 16:09:04,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9327956989247311 [2024-11-08 16:09:04,081 INFO L175 Difference]: Start difference. First operand has 125 places, 124 transitions, 258 flow. Second operand 3 states and 347 transitions. [2024-11-08 16:09:04,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 138 transitions, 365 flow [2024-11-08 16:09:04,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 138 transitions, 365 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:09:04,084 INFO L231 Difference]: Finished difference. Result has 129 places, 132 transitions, 348 flow [2024-11-08 16:09:04,084 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=129, PETRI_TRANSITIONS=132} [2024-11-08 16:09:04,085 INFO L277 CegarLoopForPetriNet]: 125 programPoint places, 4 predicate places. [2024-11-08 16:09:04,085 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 132 transitions, 348 flow [2024-11-08 16:09:04,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:04,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:04,086 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:04,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:09:04,086 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-08 16:09:04,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:04,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2135515005, now seen corresponding path program 1 times [2024-11-08 16:09:04,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:04,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463714196] [2024-11-08 16:09:04,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:04,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:04,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:04,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:09:04,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463714196] [2024-11-08 16:09:04,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463714196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:04,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:04,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:09:04,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916758421] [2024-11-08 16:09:04,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:04,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:09:04,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:09:04,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:09:04,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:09:04,126 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2024-11-08 16:09:04,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 132 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:04,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:04,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2024-11-08 16:09:04,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:04,533 INFO L124 PetriNetUnfolderBase]: 492/2662 cut-off events. [2024-11-08 16:09:04,534 INFO L125 PetriNetUnfolderBase]: For 238/246 co-relation queries the response was YES. [2024-11-08 16:09:04,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4064 conditions, 2662 events. 492/2662 cut-off events. For 238/246 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 24817 event pairs, 174 based on Foata normal form. 0/2377 useless extension candidates. Maximal degree in co-relation 3292. Up to 500 conditions per place. [2024-11-08 16:09:04,552 INFO L140 encePairwiseOnDemand]: 119/124 looper letters, 14 selfloop transitions, 4 changer transitions 0/139 dead transitions. [2024-11-08 16:09:04,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 139 transitions, 398 flow [2024-11-08 16:09:04,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:09:04,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:09:04,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 352 transitions. [2024-11-08 16:09:04,555 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.946236559139785 [2024-11-08 16:09:04,556 INFO L175 Difference]: Start difference. First operand has 129 places, 132 transitions, 348 flow. Second operand 3 states and 352 transitions. [2024-11-08 16:09:04,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 139 transitions, 398 flow [2024-11-08 16:09:04,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 139 transitions, 376 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:09:04,561 INFO L231 Difference]: Finished difference. Result has 130 places, 135 transitions, 356 flow [2024-11-08 16:09:04,562 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=130, PETRI_TRANSITIONS=135} [2024-11-08 16:09:04,562 INFO L277 CegarLoopForPetriNet]: 125 programPoint places, 5 predicate places. [2024-11-08 16:09:04,563 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 135 transitions, 356 flow [2024-11-08 16:09:04,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:04,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:04,564 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:04,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:09:04,565 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-08 16:09:04,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:04,565 INFO L85 PathProgramCache]: Analyzing trace with hash -676919528, now seen corresponding path program 1 times [2024-11-08 16:09:04,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:04,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537354947] [2024-11-08 16:09:04,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:04,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:04,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:04,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:09:04,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537354947] [2024-11-08 16:09:04,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537354947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:04,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:04,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:09:04,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410111070] [2024-11-08 16:09:04,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:04,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:09:04,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:09:04,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:09:04,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:09:04,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 124 [2024-11-08 16:09:04,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 135 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:04,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:04,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 124 [2024-11-08 16:09:04,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:04,855 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([316] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [124#true, Black: 128#true, 138#true, Black: 135#(= |#race~data~0| 0), 133#true, 36#L692-2true, 82#L689-3true, 126#true, 68#L704-1true]) [2024-11-08 16:09:04,855 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2024-11-08 16:09:04,855 INFO L297 olderBase$Statistics]: existing Event has 92 ancestors and is cut-off event [2024-11-08 16:09:04,855 INFO L297 olderBase$Statistics]: existing Event has 95 ancestors and is cut-off event [2024-11-08 16:09:04,856 INFO L297 olderBase$Statistics]: existing Event has 92 ancestors and is cut-off event [2024-11-08 16:09:05,077 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([316] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [8#L691-3true, 124#true, Black: 128#true, Black: 135#(= |#race~data~0| 0), 138#true, 133#true, 36#L692-2true, 126#true, 68#L704-1true]) [2024-11-08 16:09:05,077 INFO L294 olderBase$Statistics]: this new event has 105 ancestors and is cut-off event [2024-11-08 16:09:05,077 INFO L297 olderBase$Statistics]: existing Event has 102 ancestors and is cut-off event [2024-11-08 16:09:05,077 INFO L297 olderBase$Statistics]: existing Event has 102 ancestors and is cut-off event [2024-11-08 16:09:05,077 INFO L297 olderBase$Statistics]: existing Event has 105 ancestors and is cut-off event [2024-11-08 16:09:05,364 INFO L124 PetriNetUnfolderBase]: 1083/4642 cut-off events. [2024-11-08 16:09:05,365 INFO L125 PetriNetUnfolderBase]: For 832/973 co-relation queries the response was YES. [2024-11-08 16:09:05,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7784 conditions, 4642 events. 1083/4642 cut-off events. For 832/973 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 46318 event pairs, 540 based on Foata normal form. 39/4078 useless extension candidates. Maximal degree in co-relation 6531. Up to 1374 conditions per place. [2024-11-08 16:09:05,401 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 28 selfloop transitions, 12 changer transitions 0/149 dead transitions. [2024-11-08 16:09:05,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 149 transitions, 480 flow [2024-11-08 16:09:05,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:09:05,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:09:05,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2024-11-08 16:09:05,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9112903225806451 [2024-11-08 16:09:05,403 INFO L175 Difference]: Start difference. First operand has 130 places, 135 transitions, 356 flow. Second operand 3 states and 339 transitions. [2024-11-08 16:09:05,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 149 transitions, 480 flow [2024-11-08 16:09:05,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 149 transitions, 472 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:09:05,408 INFO L231 Difference]: Finished difference. Result has 132 places, 145 transitions, 454 flow [2024-11-08 16:09:05,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=454, PETRI_PLACES=132, PETRI_TRANSITIONS=145} [2024-11-08 16:09:05,410 INFO L277 CegarLoopForPetriNet]: 125 programPoint places, 7 predicate places. [2024-11-08 16:09:05,410 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 145 transitions, 454 flow [2024-11-08 16:09:05,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:05,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:05,411 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:05,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:09:05,411 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-08 16:09:05,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:05,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1082019786, now seen corresponding path program 1 times [2024-11-08 16:09:05,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:05,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917124883] [2024-11-08 16:09:05,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:05,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:05,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:05,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:09:05,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917124883] [2024-11-08 16:09:05,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917124883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:05,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:05,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:09:05,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87991768] [2024-11-08 16:09:05,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:05,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:09:05,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:09:05,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:09:05,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:09:05,497 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 124 [2024-11-08 16:09:05,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 145 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:05,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:05,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 124 [2024-11-08 16:09:05,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:06,036 INFO L124 PetriNetUnfolderBase]: 786/4028 cut-off events. [2024-11-08 16:09:06,037 INFO L125 PetriNetUnfolderBase]: For 1046/1295 co-relation queries the response was YES. [2024-11-08 16:09:06,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6890 conditions, 4028 events. 786/4028 cut-off events. For 1046/1295 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 42200 event pairs, 261 based on Foata normal form. 5/3543 useless extension candidates. Maximal degree in co-relation 5949. Up to 716 conditions per place. [2024-11-08 16:09:06,122 INFO L140 encePairwiseOnDemand]: 118/124 looper letters, 16 selfloop transitions, 7 changer transitions 0/153 dead transitions. [2024-11-08 16:09:06,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 153 transitions, 527 flow [2024-11-08 16:09:06,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:09:06,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:09:06,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2024-11-08 16:09:06,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9354838709677419 [2024-11-08 16:09:06,128 INFO L175 Difference]: Start difference. First operand has 132 places, 145 transitions, 454 flow. Second operand 3 states and 348 transitions. [2024-11-08 16:09:06,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 153 transitions, 527 flow [2024-11-08 16:09:06,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 153 transitions, 503 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:09:06,138 INFO L231 Difference]: Finished difference. Result has 134 places, 150 transitions, 486 flow [2024-11-08 16:09:06,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=134, PETRI_TRANSITIONS=150} [2024-11-08 16:09:06,139 INFO L277 CegarLoopForPetriNet]: 125 programPoint places, 9 predicate places. [2024-11-08 16:09:06,140 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 150 transitions, 486 flow [2024-11-08 16:09:06,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:06,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:06,140 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:06,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:09:06,141 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-08 16:09:06,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:06,141 INFO L85 PathProgramCache]: Analyzing trace with hash 935207036, now seen corresponding path program 1 times [2024-11-08 16:09:06,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:06,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215246921] [2024-11-08 16:09:06,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:06,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:06,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:06,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:09:06,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215246921] [2024-11-08 16:09:06,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215246921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:06,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:06,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:09:06,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482770379] [2024-11-08 16:09:06,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:06,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:09:06,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:09:06,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:09:06,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:09:06,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 124 [2024-11-08 16:09:06,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 150 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:06,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:06,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 124 [2024-11-08 16:09:06,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:06,427 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([316] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [124#true, Black: 145#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 128#true, 143#true, Black: 135#(= |#race~data~0| 0), 148#true, 36#L692-2true, 82#L689-3true, 126#true, Black: 140#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 68#L704-1true]) [2024-11-08 16:09:06,428 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2024-11-08 16:09:06,428 INFO L297 olderBase$Statistics]: existing Event has 92 ancestors and is cut-off event [2024-11-08 16:09:06,428 INFO L297 olderBase$Statistics]: existing Event has 95 ancestors and is cut-off event [2024-11-08 16:09:06,428 INFO L297 olderBase$Statistics]: existing Event has 92 ancestors and is cut-off event [2024-11-08 16:09:06,642 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([316] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [8#L691-3true, 124#true, Black: 145#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 128#true, 143#true, Black: 135#(= |#race~data~0| 0), 148#true, 36#L692-2true, 126#true, Black: 140#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 68#L704-1true]) [2024-11-08 16:09:06,642 INFO L294 olderBase$Statistics]: this new event has 105 ancestors and is cut-off event [2024-11-08 16:09:06,642 INFO L297 olderBase$Statistics]: existing Event has 102 ancestors and is cut-off event [2024-11-08 16:09:06,643 INFO L297 olderBase$Statistics]: existing Event has 105 ancestors and is cut-off event [2024-11-08 16:09:06,643 INFO L297 olderBase$Statistics]: existing Event has 102 ancestors and is cut-off event [2024-11-08 16:09:06,893 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([316] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][120], [75#L692-7true, 111#L692-2true, Black: 145#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), 124#true, Black: 128#true, 143#true, Black: 135#(= |#race~data~0| 0), 148#true, 68#L704-1true, 126#true, Black: 140#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|)]) [2024-11-08 16:09:06,893 INFO L294 olderBase$Statistics]: this new event has 113 ancestors and is cut-off event [2024-11-08 16:09:06,894 INFO L297 olderBase$Statistics]: existing Event has 113 ancestors and is cut-off event [2024-11-08 16:09:06,894 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-08 16:09:06,894 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-08 16:09:06,984 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([316] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [111#L692-2true, 124#true, Black: 145#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 128#true, 143#true, Black: 135#(= |#race~data~0| 0), 148#true, 68#L704-1true, 126#true, Black: 140#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 52#L693true]) [2024-11-08 16:09:06,984 INFO L294 olderBase$Statistics]: this new event has 115 ancestors and is cut-off event [2024-11-08 16:09:06,985 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2024-11-08 16:09:06,985 INFO L297 olderBase$Statistics]: existing Event has 115 ancestors and is cut-off event [2024-11-08 16:09:06,985 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2024-11-08 16:09:07,207 INFO L124 PetriNetUnfolderBase]: 1594/6331 cut-off events. [2024-11-08 16:09:07,208 INFO L125 PetriNetUnfolderBase]: For 3304/3584 co-relation queries the response was YES. [2024-11-08 16:09:07,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12406 conditions, 6331 events. 1594/6331 cut-off events. For 3304/3584 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 66600 event pairs, 516 based on Foata normal form. 46/5559 useless extension candidates. Maximal degree in co-relation 10316. Up to 1835 conditions per place. [2024-11-08 16:09:07,254 INFO L140 encePairwiseOnDemand]: 115/124 looper letters, 31 selfloop transitions, 19 changer transitions 0/168 dead transitions. [2024-11-08 16:09:07,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 168 transitions, 671 flow [2024-11-08 16:09:07,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:09:07,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:09:07,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2024-11-08 16:09:07,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9220430107526881 [2024-11-08 16:09:07,256 INFO L175 Difference]: Start difference. First operand has 134 places, 150 transitions, 486 flow. Second operand 3 states and 343 transitions. [2024-11-08 16:09:07,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 168 transitions, 671 flow [2024-11-08 16:09:07,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 168 transitions, 657 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:09:07,261 INFO L231 Difference]: Finished difference. Result has 136 places, 165 transitions, 654 flow [2024-11-08 16:09:07,262 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=136, PETRI_TRANSITIONS=165} [2024-11-08 16:09:07,262 INFO L277 CegarLoopForPetriNet]: 125 programPoint places, 11 predicate places. [2024-11-08 16:09:07,262 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 165 transitions, 654 flow [2024-11-08 16:09:07,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:07,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:07,263 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:07,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:09:07,263 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-08 16:09:07,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:07,264 INFO L85 PathProgramCache]: Analyzing trace with hash 194433546, now seen corresponding path program 1 times [2024-11-08 16:09:07,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:07,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734755928] [2024-11-08 16:09:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:07,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:07,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:07,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:09:07,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734755928] [2024-11-08 16:09:07,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734755928] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:09:07,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122793363] [2024-11-08 16:09:07,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:07,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:07,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:09:07,363 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:09:07,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:09:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:07,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:09:07,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:09:07,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:07,570 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:09:07,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122793363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:07,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:09:07,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-08 16:09:07,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701051469] [2024-11-08 16:09:07,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:07,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:09:07,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:09:07,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:09:07,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:09:07,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 124 [2024-11-08 16:09:07,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 165 transitions, 654 flow. Second operand has 5 states, 5 states have (on average 107.6) internal successors, (538), 5 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:07,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:07,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 124 [2024-11-08 16:09:07,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:08,727 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([316] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][122], [75#L692-7true, 111#L692-2true, 124#true, Black: 145#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 128#true, Black: 150#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), Black: 135#(= |#race~data~0| 0), 148#true, 153#true, Black: 140#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 68#L704-1true, 126#true]) [2024-11-08 16:09:08,727 INFO L294 olderBase$Statistics]: this new event has 113 ancestors and is cut-off event [2024-11-08 16:09:08,727 INFO L297 olderBase$Statistics]: existing Event has 113 ancestors and is cut-off event [2024-11-08 16:09:08,728 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-08 16:09:08,728 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-08 16:09:08,731 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([316] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][122], [75#L692-7true, 111#L692-2true, 124#true, Black: 145#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 128#true, Black: 135#(= |#race~data~0| 0), Black: 150#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 157#(<= 1 ~threads_alive~0), 148#true, 68#L704-1true, 126#true, Black: 140#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|)]) [2024-11-08 16:09:08,731 INFO L294 olderBase$Statistics]: this new event has 113 ancestors and is cut-off event [2024-11-08 16:09:08,731 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-08 16:09:08,731 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-08 16:09:08,731 INFO L297 olderBase$Statistics]: existing Event has 113 ancestors and is cut-off event [2024-11-08 16:09:08,957 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([316] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [124#true, Black: 145#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 128#true, 79#L692-1true, Black: 135#(= |#race~data~0| 0), Black: 150#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 148#true, 153#true, 52#L693true, Black: 140#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 126#true, 68#L704-1true]) [2024-11-08 16:09:08,958 INFO L294 olderBase$Statistics]: this new event has 114 ancestors and is cut-off event [2024-11-08 16:09:08,958 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2024-11-08 16:09:08,958 INFO L297 olderBase$Statistics]: existing Event has 114 ancestors and is cut-off event [2024-11-08 16:09:08,958 INFO L297 olderBase$Statistics]: existing Event has 114 ancestors and is cut-off event [2024-11-08 16:09:08,961 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([316] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [111#L692-2true, Black: 145#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), 124#true, Black: 128#true, Black: 150#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), Black: 135#(= |#race~data~0| 0), 148#true, 153#true, 68#L704-1true, 52#L693true, Black: 140#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 126#true]) [2024-11-08 16:09:08,961 INFO L294 olderBase$Statistics]: this new event has 115 ancestors and is cut-off event [2024-11-08 16:09:08,961 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2024-11-08 16:09:08,961 INFO L297 olderBase$Statistics]: existing Event has 115 ancestors and is cut-off event [2024-11-08 16:09:08,961 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2024-11-08 16:09:09,019 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([316] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [111#L692-2true, 124#true, Black: 145#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 128#true, Black: 150#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), Black: 135#(= |#race~data~0| 0), 148#true, 153#true, 52#L693true, Black: 140#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 126#true, 68#L704-1true]) [2024-11-08 16:09:09,019 INFO L294 olderBase$Statistics]: this new event has 115 ancestors and is cut-off event [2024-11-08 16:09:09,019 INFO L297 olderBase$Statistics]: existing Event has 115 ancestors and is cut-off event [2024-11-08 16:09:09,019 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2024-11-08 16:09:09,019 INFO L297 olderBase$Statistics]: existing Event has 115 ancestors and is cut-off event [2024-11-08 16:09:09,020 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2024-11-08 16:09:09,021 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([316] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [111#L692-2true, 124#true, Black: 145#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 128#true, Black: 135#(= |#race~data~0| 0), Black: 150#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 157#(<= 1 ~threads_alive~0), 148#true, 68#L704-1true, 52#L693true, 126#true, Black: 140#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|)]) [2024-11-08 16:09:09,022 INFO L294 olderBase$Statistics]: this new event has 115 ancestors and is cut-off event [2024-11-08 16:09:09,022 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2024-11-08 16:09:09,022 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2024-11-08 16:09:09,022 INFO L297 olderBase$Statistics]: existing Event has 115 ancestors and is cut-off event [2024-11-08 16:09:09,221 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([295] L699-5-->L699-6: Formula: (= |v_ULTIMATE.start_main_#t~nondet8#1_3| |v_#race~threads_alive~0_4|) InVars {ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_3|} OutVars{ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_3|, #race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][43], [111#L692-2true, 124#true, Black: 130#(= |#race~threads_alive~0| 0), Black: 145#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 135#(= |#race~data~0| 0), Black: 150#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 349#(and (<= 0 |ULTIMATE.start_main_#t~post7#1|) (<= 1 ~threads_alive~0)), 148#true, 62#L699-6true, 126#true, 52#L693true, Black: 138#true]) [2024-11-08 16:09:09,222 INFO L294 olderBase$Statistics]: this new event has 117 ancestors and is not cut-off event [2024-11-08 16:09:09,222 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is not cut-off event [2024-11-08 16:09:09,222 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is not cut-off event [2024-11-08 16:09:09,222 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is not cut-off event [2024-11-08 16:09:09,381 INFO L124 PetriNetUnfolderBase]: 2681/9870 cut-off events. [2024-11-08 16:09:09,381 INFO L125 PetriNetUnfolderBase]: For 7612/8558 co-relation queries the response was YES. [2024-11-08 16:09:09,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21279 conditions, 9870 events. 2681/9870 cut-off events. For 7612/8558 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 113264 event pairs, 388 based on Foata normal form. 102/8807 useless extension candidates. Maximal degree in co-relation 16922. Up to 2237 conditions per place. [2024-11-08 16:09:09,453 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 36 selfloop transitions, 14 changer transitions 2/200 dead transitions. [2024-11-08 16:09:09,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 200 transitions, 829 flow [2024-11-08 16:09:09,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:09:09,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 16:09:09,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 795 transitions. [2024-11-08 16:09:09,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9158986175115207 [2024-11-08 16:09:09,456 INFO L175 Difference]: Start difference. First operand has 136 places, 165 transitions, 654 flow. Second operand 7 states and 795 transitions. [2024-11-08 16:09:09,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 200 transitions, 829 flow [2024-11-08 16:09:09,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 200 transitions, 791 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:09:09,494 INFO L231 Difference]: Finished difference. Result has 143 places, 178 transitions, 695 flow [2024-11-08 16:09:09,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=695, PETRI_PLACES=143, PETRI_TRANSITIONS=178} [2024-11-08 16:09:09,495 INFO L277 CegarLoopForPetriNet]: 125 programPoint places, 18 predicate places. [2024-11-08 16:09:09,495 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 178 transitions, 695 flow [2024-11-08 16:09:09,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 107.6) internal successors, (538), 5 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:09,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:09,496 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:09,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:09:09,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 16:09:09,700 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-08 16:09:09,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:09,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1948766920, now seen corresponding path program 1 times [2024-11-08 16:09:09,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:09,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028830694] [2024-11-08 16:09:09,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:09,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:09:09,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:09:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:09:09,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:09:09,742 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:09:09,745 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2024-11-08 16:09:09,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-08 16:09:09,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-08 16:09:09,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-08 16:09:09,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 14 remaining) [2024-11-08 16:09:09,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2024-11-08 16:09:09,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2024-11-08 16:09:09,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-11-08 16:09:09,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-08 16:09:09,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-11-08 16:09:09,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-11-08 16:09:09,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-08 16:09:09,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-08 16:09:09,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-08 16:09:09,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:09:09,747 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:09,805 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-11-08 16:09:09,810 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-11-08 16:09:09,810 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-08 16:09:09,817 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-11-08 16:09:09,818 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:09:09,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:09:09 BasicIcfg [2024-11-08 16:09:09,824 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:09:09,825 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:09:09,825 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:09:09,825 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:09:09,826 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:09:00" (3/4) ... [2024-11-08 16:09:09,826 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 16:09:09,859 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-11-08 16:09:09,859 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-11-08 16:09:09,859 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-08 16:09:09,903 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 16:09:09,906 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:09:09,907 INFO L158 Benchmark]: Toolchain (without parser) took 10182.09ms. Allocated memory was 167.8MB in the beginning and 471.9MB in the end (delta: 304.1MB). Free memory was 139.0MB in the beginning and 246.7MB in the end (delta: -107.7MB). Peak memory consumption was 194.6MB. Max. memory is 16.1GB. [2024-11-08 16:09:09,907 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 130.0MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:09:09,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 639.07ms. Allocated memory is still 167.8MB. Free memory was 138.8MB in the beginning and 118.4MB in the end (delta: 20.4MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2024-11-08 16:09:09,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.59ms. Allocated memory is still 167.8MB. Free memory was 118.4MB in the beginning and 116.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:09:09,908 INFO L158 Benchmark]: Boogie Preprocessor took 25.60ms. Allocated memory is still 167.8MB. Free memory was 116.4MB in the beginning and 115.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:09:09,908 INFO L158 Benchmark]: RCFGBuilder took 459.19ms. Allocated memory is still 167.8MB. Free memory was 114.3MB in the beginning and 124.9MB in the end (delta: -10.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 16:09:09,909 INFO L158 Benchmark]: TraceAbstraction took 8925.38ms. Allocated memory was 167.8MB in the beginning and 471.9MB in the end (delta: 304.1MB). Free memory was 124.5MB in the beginning and 256.2MB in the end (delta: -131.6MB). Peak memory consumption was 175.6MB. Max. memory is 16.1GB. [2024-11-08 16:09:09,909 INFO L158 Benchmark]: Witness Printer took 81.42ms. Allocated memory is still 471.9MB. Free memory was 256.2MB in the beginning and 246.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 16:09:09,911 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 130.0MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 639.07ms. Allocated memory is still 167.8MB. Free memory was 138.8MB in the beginning and 118.4MB in the end (delta: 20.4MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.59ms. Allocated memory is still 167.8MB. Free memory was 118.4MB in the beginning and 116.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.60ms. Allocated memory is still 167.8MB. Free memory was 116.4MB in the beginning and 115.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.19ms. Allocated memory is still 167.8MB. Free memory was 114.3MB in the beginning and 124.9MB in the end (delta: -10.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8925.38ms. Allocated memory was 167.8MB in the beginning and 471.9MB in the end (delta: 304.1MB). Free memory was 124.5MB in the beginning and 256.2MB in the end (delta: -131.6MB). Peak memory consumption was 175.6MB. Max. memory is 16.1GB. * Witness Printer took 81.42ms. Allocated memory is still 471.9MB. Free memory was 256.2MB in the beginning and 246.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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: The program execution was not completely translated back. - 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: The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 704]: Data race detected Data race detected The following path leads to a data race: [L685] 0 int threads_alive = 0; VAL [threads_alive=0] [L686] 0 int data = 0; VAL [data=0, threads_alive=0] [L687] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={1:0}, threads_alive=0] [L696] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, data_mutex={1:0}, threads_alive=0, threads_total=1] [L697] CALL 0 assume_abort_if_not(threads_total >= 0) [L682] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data=0, data_mutex={1:0}, threads_alive=0] [L697] RET 0 assume_abort_if_not(threads_total >= 0) [L698] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_alive=0, threads_total=1] [L698] COND FALSE 0 !(i < threads_total) VAL [data=0, data_mutex={1:0}, i=0, threads_alive=0, threads_total=1] [L698] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={1:0}, i=0, threads_alive=0, threads_total=1] [L699] 0 threads_alive++ VAL [data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=1] [L700] 0 pthread_t tid; VAL [data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=1] [L701] FCALL, FORK 0 pthread_create(&tid, ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=1, tid=-1] [L690] 1 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_alive=1] [L698] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=1, threads_total=1] [L698] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=1, threads_total=1] [L692] 1 threads_alive-- VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_alive=0] Now there is a data race on ~threads_alive~0 between C: threads_alive-- [692] and C: while (threads_alive); [704] - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: 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: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: 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, 121 locations, 11 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: 2.5s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 38 mSDtfsCounter, 172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=412occurred in iteration=5, InterpolantAutomatonStates: 22, 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, 0.7s InterpolantComputationTime, 391 NumberOfCodeBlocks, 391 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 320 ConstructedInterpolants, 0 QuantifiedInterpolants, 530 SizeOfPredicates, 2 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 1/2 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, 149 locations, 14 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: 6.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 233 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 297 IncrementalHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 44 mSDtfsCounter, 297 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=695occurred in iteration=6, InterpolantAutomatonStates: 22, 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, 0.4s InterpolantComputationTime, 398 NumberOfCodeBlocks, 398 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 320 ConstructedInterpolants, 0 QuantifiedInterpolants, 530 SizeOfPredicates, 2 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 1/2 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! [2024-11-08 16:09:09,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f55569-691e-43cc-b860-7f51dd02a0ef/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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