./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 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_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ --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 f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:38:27,854 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:38:27,928 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 21:38:27,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:38:27,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:38:27,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:38:27,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:38:27,965 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:38:27,966 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:38:27,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:38:27,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:38:27,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:38:27,969 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:38:27,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:38:27,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:38:27,971 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:38:27,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:38:27,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:38:27,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:38:27,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:38:27,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:38:27,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:38:27,976 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 21:38:27,977 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:38:27,978 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:38:27,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:38:27,979 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:38:27,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:38:27,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:38:27,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:38:27,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:38:27,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:38:27,983 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:38:27,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:38:27,984 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:38:27,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:38:27,985 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:38:27,986 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:38:27,987 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:38:27,987 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:38:27,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:38:27,989 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_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 [2023-11-23 21:38:28,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:38:28,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:38:28,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:38:28,313 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:38:28,314 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:38:28,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2023-11-23 21:38:31,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:38:31,830 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:38:31,831 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2023-11-23 21:38:31,851 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ/data/81c2eec34/96e16d8530e94e01bfe85809725c3122/FLAG6987f8b4e [2023-11-23 21:38:31,868 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ/data/81c2eec34/96e16d8530e94e01bfe85809725c3122 [2023-11-23 21:38:31,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:38:31,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:38:31,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:38:31,880 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:38:31,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:38:31,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:38:31" (1/1) ... [2023-11-23 21:38:31,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c39230f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:31, skipping insertion in model container [2023-11-23 21:38:31,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:38:31" (1/1) ... [2023-11-23 21:38:31,939 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:38:32,096 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:38:32,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:38:32,500 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:38:32,524 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:38:32,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:38:32,670 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:38:32,678 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:38:32,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:32 WrapperNode [2023-11-23 21:38:32,679 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:38:32,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:38:32,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:38:32,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:38:32,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:32" (1/1) ... [2023-11-23 21:38:32,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:32" (1/1) ... [2023-11-23 21:38:32,835 INFO L138 Inliner]: procedures = 175, calls = 95, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 937 [2023-11-23 21:38:32,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:38:32,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:38:32,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:38:32,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:38:32,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:32" (1/1) ... [2023-11-23 21:38:32,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:32" (1/1) ... [2023-11-23 21:38:32,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:32" (1/1) ... [2023-11-23 21:38:32,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:32" (1/1) ... [2023-11-23 21:38:32,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:32" (1/1) ... [2023-11-23 21:38:33,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:32" (1/1) ... [2023-11-23 21:38:33,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:32" (1/1) ... [2023-11-23 21:38:33,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:32" (1/1) ... [2023-11-23 21:38:33,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:38:33,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:38:33,072 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:38:33,072 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:38:33,073 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:32" (1/1) ... [2023-11-23 21:38:33,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:38:33,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:38:33,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:38:33,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fceff8d-ea8f-4a4e-bb5b-ecc60f103fa3/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:38:33,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:38:33,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:38:33,179 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 21:38:33,179 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2023-11-23 21:38:33,180 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2023-11-23 21:38:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:38:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:38:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:38:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:38:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:38:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:38:33,185 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 21:38:33,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:38:33,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:38:33,188 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:38:33,474 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:38:33,487 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:38:34,896 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:38:34,968 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:38:34,968 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-23 21:38:34,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:38:34 BoogieIcfgContainer [2023-11-23 21:38:34,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:38:34,973 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:38:34,973 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:38:34,977 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:38:34,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:38:31" (1/3) ... [2023-11-23 21:38:34,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a086ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:38:34, skipping insertion in model container [2023-11-23 21:38:34,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:32" (2/3) ... [2023-11-23 21:38:34,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a086ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:38:34, skipping insertion in model container [2023-11-23 21:38:34,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:38:34" (3/3) ... [2023-11-23 21:38:34,980 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_3t.i [2023-11-23 21:38:34,990 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:38:35,002 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:38:35,002 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2023-11-23 21:38:35,002 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:38:35,284 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-23 21:38:35,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1005 places, 1093 transitions, 2193 flow [2023-11-23 21:38:36,299 INFO L124 PetriNetUnfolderBase]: 137/1600 cut-off events. [2023-11-23 21:38:36,299 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-23 21:38:36,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1600 events. 137/1600 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 5932 event pairs, 0 based on Foata normal form. 0/1345 useless extension candidates. Maximal degree in co-relation 947. Up to 4 conditions per place. [2023-11-23 21:38:36,354 INFO L82 GeneralOperation]: Start removeDead. Operand has 1005 places, 1093 transitions, 2193 flow [2023-11-23 21:38:36,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1005 places, 1093 transitions, 2193 flow [2023-11-23 21:38:36,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:38:36,412 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34cd5687, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:38:36,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2023-11-23 21:38:36,421 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 21:38:36,421 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2023-11-23 21:38:36,421 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:38:36,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:36,422 INFO L208 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] [2023-11-23 21:38:36,423 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-23 21:38:36,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:36,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1414672483, now seen corresponding path program 1 times [2023-11-23 21:38:36,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:36,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374587399] [2023-11-23 21:38:36,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:36,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:37,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:37,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:37,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374587399] [2023-11-23 21:38:37,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374587399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:37,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:37,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:38:37,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045332736] [2023-11-23 21:38:37,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:37,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:38:37,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:37,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:38:37,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:38:39,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 780 out of 1093 [2023-11-23 21:38:39,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1005 places, 1093 transitions, 2193 flow. Second operand has 6 states, 6 states have (on average 781.5) internal successors, (4689), 6 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:39,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:39,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 780 of 1093 [2023-11-23 21:38:39,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:56,788 INFO L124 PetriNetUnfolderBase]: 12308/58388 cut-off events. [2023-11-23 21:38:56,789 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-23 21:38:56,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81005 conditions, 58388 events. 12308/58388 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 679523 event pairs, 11009 based on Foata normal form. 6981/58424 useless extension candidates. Maximal degree in co-relation 80282. Up to 22607 conditions per place. [2023-11-23 21:38:57,226 INFO L140 encePairwiseOnDemand]: 1015/1093 looper letters, 235 selfloop transitions, 5 changer transitions 6/964 dead transitions. [2023-11-23 21:38:57,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 964 transitions, 2415 flow [2023-11-23 21:38:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:38:57,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 21:38:57,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4993 transitions. [2023-11-23 21:38:57,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7613601707837755 [2023-11-23 21:38:57,273 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4993 transitions. [2023-11-23 21:38:57,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4993 transitions. [2023-11-23 21:38:57,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:57,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4993 transitions. [2023-11-23 21:38:57,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 832.1666666666666) internal successors, (4993), 6 states have internal predecessors, (4993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,351 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,353 INFO L175 Difference]: Start difference. First operand has 1005 places, 1093 transitions, 2193 flow. Second operand 6 states and 4993 transitions. [2023-11-23 21:38:57,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 964 transitions, 2415 flow [2023-11-23 21:38:57,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 953 places, 964 transitions, 2415 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 21:38:57,404 INFO L231 Difference]: Finished difference. Result has 953 places, 958 transitions, 1933 flow [2023-11-23 21:38:57,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1093, PETRI_DIFFERENCE_MINUEND_FLOW=1935, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=964, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1933, PETRI_PLACES=953, PETRI_TRANSITIONS=958} [2023-11-23 21:38:57,413 INFO L281 CegarLoopForPetriNet]: 1005 programPoint places, -52 predicate places. [2023-11-23 21:38:57,414 INFO L495 AbstractCegarLoop]: Abstraction has has 953 places, 958 transitions, 1933 flow [2023-11-23 21:38:57,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 781.5) internal successors, (4689), 6 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:57,419 INFO L208 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] [2023-11-23 21:38:57,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:38:57,420 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-23 21:38:57,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:57,422 INFO L85 PathProgramCache]: Analyzing trace with hash 755806166, now seen corresponding path program 1 times [2023-11-23 21:38:57,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:57,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28937376] [2023-11-23 21:38:57,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:57,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:57,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:57,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:57,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28937376] [2023-11-23 21:38:57,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28937376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:57,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:57,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:38:57,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78634265] [2023-11-23 21:38:57,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:57,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:57,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:57,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:57,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:57,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 993 out of 1093 [2023-11-23 21:38:57,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 953 places, 958 transitions, 1933 flow. Second operand has 3 states, 3 states have (on average 994.3333333333334) internal successors, (2983), 3 states have internal predecessors, (2983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:57,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:38:57,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 993 of 1093 [2023-11-23 21:38:57,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:38:59,196 INFO L124 PetriNetUnfolderBase]: 243/4813 cut-off events. [2023-11-23 21:38:59,196 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-23 21:38:59,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5132 conditions, 4813 events. 243/4813 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 36263 event pairs, 110 based on Foata normal form. 1/4158 useless extension candidates. Maximal degree in co-relation 5043. Up to 302 conditions per place. [2023-11-23 21:38:59,264 INFO L140 encePairwiseOnDemand]: 1090/1093 looper letters, 27 selfloop transitions, 2 changer transitions 0/959 dead transitions. [2023-11-23 21:38:59,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 959 transitions, 1993 flow [2023-11-23 21:38:59,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:59,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:38:59,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3009 transitions. [2023-11-23 21:38:59,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9176578225068619 [2023-11-23 21:38:59,275 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3009 transitions. [2023-11-23 21:38:59,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3009 transitions. [2023-11-23 21:38:59,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:38:59,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3009 transitions. [2023-11-23 21:38:59,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1003.0) internal successors, (3009), 3 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:59,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1093.0) internal successors, (4372), 4 states have internal predecessors, (4372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:59,304 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1093.0) internal successors, (4372), 4 states have internal predecessors, (4372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:59,304 INFO L175 Difference]: Start difference. First operand has 953 places, 958 transitions, 1933 flow. Second operand 3 states and 3009 transitions. [2023-11-23 21:38:59,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 949 places, 959 transitions, 1993 flow [2023-11-23 21:38:59,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 944 places, 959 transitions, 1983 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 21:38:59,332 INFO L231 Difference]: Finished difference. Result has 945 places, 959 transitions, 1935 flow [2023-11-23 21:38:59,335 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1093, PETRI_DIFFERENCE_MINUEND_FLOW=1923, PETRI_DIFFERENCE_MINUEND_PLACES=942, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1935, PETRI_PLACES=945, PETRI_TRANSITIONS=959} [2023-11-23 21:38:59,336 INFO L281 CegarLoopForPetriNet]: 1005 programPoint places, -60 predicate places. [2023-11-23 21:38:59,337 INFO L495 AbstractCegarLoop]: Abstraction has has 945 places, 959 transitions, 1935 flow [2023-11-23 21:38:59,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 994.3333333333334) internal successors, (2983), 3 states have internal predecessors, (2983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:38:59,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:38:59,344 INFO L208 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] [2023-11-23 21:38:59,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:38:59,344 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-23 21:38:59,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:59,355 INFO L85 PathProgramCache]: Analyzing trace with hash -52067411, now seen corresponding path program 1 times [2023-11-23 21:38:59,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:59,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536198606] [2023-11-23 21:38:59,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:59,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:59,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:59,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:59,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536198606] [2023-11-23 21:38:59,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536198606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:59,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:59,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:38:59,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604065854] [2023-11-23 21:38:59,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:59,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:38:59,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:59,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:38:59,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:39:01,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 780 out of 1093 [2023-11-23 21:39:01,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 959 transitions, 1935 flow. Second operand has 6 states, 6 states have (on average 781.5) internal successors, (4689), 6 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:01,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:39:01,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 780 of 1093 [2023-11-23 21:39:01,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:39:18,153 INFO L124 PetriNetUnfolderBase]: 12308/58409 cut-off events. [2023-11-23 21:39:18,154 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-23 21:39:18,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81041 conditions, 58409 events. 12308/58409 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 679870 event pairs, 11009 based on Foata normal form. 0/51467 useless extension candidates. Maximal degree in co-relation 80957. Up to 22610 conditions per place. [2023-11-23 21:39:18,500 INFO L140 encePairwiseOnDemand]: 1087/1093 looper letters, 236 selfloop transitions, 5 changer transitions 0/958 dead transitions. [2023-11-23 21:39:18,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 958 transitions, 2415 flow [2023-11-23 21:39:18,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:39:18,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 21:39:18,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4921 transitions. [2023-11-23 21:39:18,525 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7503812137846905 [2023-11-23 21:39:18,526 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4921 transitions. [2023-11-23 21:39:18,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4921 transitions. [2023-11-23 21:39:18,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:39:18,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4921 transitions. [2023-11-23 21:39:18,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 820.1666666666666) internal successors, (4921), 6 states have internal predecessors, (4921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:18,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:18,598 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1093.0) internal successors, (7651), 7 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:18,608 INFO L175 Difference]: Start difference. First operand has 945 places, 959 transitions, 1935 flow. Second operand 6 states and 4921 transitions. [2023-11-23 21:39:18,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 949 places, 958 transitions, 2415 flow [2023-11-23 21:39:18,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 948 places, 958 transitions, 2413 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:39:18,648 INFO L231 Difference]: Finished difference. Result has 948 places, 958 transitions, 1941 flow [2023-11-23 21:39:18,652 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1093, PETRI_DIFFERENCE_MINUEND_FLOW=1931, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=953, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1941, PETRI_PLACES=948, PETRI_TRANSITIONS=958} [2023-11-23 21:39:18,654 INFO L281 CegarLoopForPetriNet]: 1005 programPoint places, -57 predicate places. [2023-11-23 21:39:18,655 INFO L495 AbstractCegarLoop]: Abstraction has has 948 places, 958 transitions, 1941 flow [2023-11-23 21:39:18,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 781.5) internal successors, (4689), 6 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:18,658 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:39:18,659 INFO L208 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] [2023-11-23 21:39:18,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:39:18,659 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2023-11-23 21:39:18,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:18,661 INFO L85 PathProgramCache]: Analyzing trace with hash -855045044, now seen corresponding path program 1 times [2023-11-23 21:39:18,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:18,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302207485] [2023-11-23 21:39:18,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:18,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:19,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:39:19,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:19,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302207485] [2023-11-23 21:39:19,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302207485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:19,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:19,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:39:19,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075914699] [2023-11-23 21:39:19,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:19,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:39:19,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:19,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:39:19,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30