./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme --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 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:45:08,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:45:08,363 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:45:08,371 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:45:08,372 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:45:08,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:45:08,412 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:45:08,412 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:45:08,414 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:45:08,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:45:08,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:45:08,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:45:08,425 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:45:08,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:45:08,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:45:08,428 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:45:08,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:45:08,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:45:08,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:45:08,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:45:08,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:45:08,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:45:08,431 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:45:08,433 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:45:08,434 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:45:08,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:45:08,435 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:45:08,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:45:08,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:45:08,436 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:45:08,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:45:08,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:45:08,439 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:45:08,439 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:45:08,439 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:45:08,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:45:08,440 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:45:08,440 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:45:08,440 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:45:08,440 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:45:08,441 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:45:08,441 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_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb [2023-11-26 10:45:08,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:45:08,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:45:08,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:45:08,732 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:45:08,733 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:45:08,734 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2023-11-26 10:45:11,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:45:12,271 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:45:12,272 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2023-11-26 10:45:12,299 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme/data/0f1f58877/4a7cd9c333524f348fa69559b6cbdb5a/FLAG724693ff2 [2023-11-26 10:45:12,318 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme/data/0f1f58877/4a7cd9c333524f348fa69559b6cbdb5a [2023-11-26 10:45:12,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:45:12,328 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:45:12,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:12,330 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:45:12,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:45:12,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:12" (1/1) ... [2023-11-26 10:45:12,339 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aaa9ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:12, skipping insertion in model container [2023-11-26 10:45:12,339 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:12" (1/1) ... [2023-11-26 10:45:12,422 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:45:12,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:12,949 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:45:13,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:13,123 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:45:13,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:13 WrapperNode [2023-11-26 10:45:13,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:13,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:13,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:45:13,125 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:45:13,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:13" (1/1) ... [2023-11-26 10:45:13,157 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:13" (1/1) ... [2023-11-26 10:45:13,232 INFO L138 Inliner]: procedures = 174, calls = 89, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 932 [2023-11-26 10:45:13,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:13,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:45:13,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:45:13,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:45:13,269 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:13" (1/1) ... [2023-11-26 10:45:13,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:13" (1/1) ... [2023-11-26 10:45:13,285 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:13" (1/1) ... [2023-11-26 10:45:13,286 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:13" (1/1) ... [2023-11-26 10:45:13,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:13" (1/1) ... [2023-11-26 10:45:13,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:13" (1/1) ... [2023-11-26 10:45:13,461 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:13" (1/1) ... [2023-11-26 10:45:13,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:13" (1/1) ... [2023-11-26 10:45:13,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:45:13,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:45:13,490 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:45:13,490 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:45:13,491 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:13" (1/1) ... [2023-11-26 10:45:13,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:45:13,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:13,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:13,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b8276a-f5ca-452a-bf3c-aa64a906796c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:45:13,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:45:13,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:45:13,582 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 10:45:13,582 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2023-11-26 10:45:13,583 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2023-11-26 10:45:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:45:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 10:45:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:45:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 10:45:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:45:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:45:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 10:45:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:45:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:45:13,589 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:45:13,795 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:45:13,797 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:45:15,308 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:45:15,374 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:45:15,374 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-26 10:45:15,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:15 BoogieIcfgContainer [2023-11-26 10:45:15,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:45:15,382 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:45:15,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:45:15,386 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:45:15,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:45:12" (1/3) ... [2023-11-26 10:45:15,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3ba9d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:45:15, skipping insertion in model container [2023-11-26 10:45:15,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:13" (2/3) ... [2023-11-26 10:45:15,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3ba9d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:45:15, skipping insertion in model container [2023-11-26 10:45:15,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:15" (3/3) ... [2023-11-26 10:45:15,390 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_2t.i [2023-11-26 10:45:15,398 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:45:15,407 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:45:15,407 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2023-11-26 10:45:15,408 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:45:15,678 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-26 10:45:15,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1000 places, 1088 transitions, 2183 flow [2023-11-26 10:45:17,081 INFO L124 PetriNetUnfolderBase]: 137/1595 cut-off events. [2023-11-26 10:45:17,082 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 10:45:17,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1600 conditions, 1595 events. 137/1595 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 5917 event pairs, 0 based on Foata normal form. 0/1340 useless extension candidates. Maximal degree in co-relation 947. Up to 4 conditions per place. [2023-11-26 10:45:17,154 INFO L82 GeneralOperation]: Start removeDead. Operand has 1000 places, 1088 transitions, 2183 flow [2023-11-26 10:45:17,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1000 places, 1088 transitions, 2183 flow [2023-11-26 10:45:17,234 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:45:17,245 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;@5a8845c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:45:17,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2023-11-26 10:45:17,256 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:45:17,257 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2023-11-26 10:45:17,257 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:45:17,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:17,258 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] [2023-11-26 10:45:17,259 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)] === [2023-11-26 10:45:17,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:17,266 INFO L85 PathProgramCache]: Analyzing trace with hash -869379895, now seen corresponding path program 1 times [2023-11-26 10:45:17,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:17,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837086331] [2023-11-26 10:45:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:17,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:18,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:18,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:18,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837086331] [2023-11-26 10:45:18,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837086331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:18,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:18,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:45:18,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753013197] [2023-11-26 10:45:18,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:18,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:45:18,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:18,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:45:18,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:45:21,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 775 out of 1088 [2023-11-26 10:45:21,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1000 places, 1088 transitions, 2183 flow. Second operand has 6 states, 6 states have (on average 776.5) internal successors, (4659), 6 states have internal predecessors, (4659), 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) [2023-11-26 10:45:21,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:21,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 775 of 1088 [2023-11-26 10:45:21,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:38,541 INFO L124 PetriNetUnfolderBase]: 12308/58383 cut-off events. [2023-11-26 10:45:38,542 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 10:45:38,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81000 conditions, 58383 events. 12308/58383 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 679838 event pairs, 11009 based on Foata normal form. 6981/58419 useless extension candidates. Maximal degree in co-relation 80282. Up to 22607 conditions per place. [2023-11-26 10:45:39,013 INFO L140 encePairwiseOnDemand]: 1010/1088 looper letters, 235 selfloop transitions, 5 changer transitions 6/959 dead transitions. [2023-11-26 10:45:39,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 959 transitions, 2405 flow [2023-11-26 10:45:39,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:45:39,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:45:39,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4963 transitions. [2023-11-26 10:45:39,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7602634803921569 [2023-11-26 10:45:39,058 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4963 transitions. [2023-11-26 10:45:39,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4963 transitions. [2023-11-26 10:45:39,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:39,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4963 transitions. [2023-11-26 10:45:39,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 827.1666666666666) internal successors, (4963), 6 states have internal predecessors, (4963), 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) [2023-11-26 10:45:39,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1088.0) internal successors, (7616), 7 states have internal predecessors, (7616), 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) [2023-11-26 10:45:39,136 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1088.0) internal successors, (7616), 7 states have internal predecessors, (7616), 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) [2023-11-26 10:45:39,139 INFO L175 Difference]: Start difference. First operand has 1000 places, 1088 transitions, 2183 flow. Second operand 6 states and 4963 transitions. [2023-11-26 10:45:39,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 959 transitions, 2405 flow [2023-11-26 10:45:39,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 948 places, 959 transitions, 2405 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:45:39,194 INFO L231 Difference]: Finished difference. Result has 948 places, 953 transitions, 1923 flow [2023-11-26 10:45:39,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1088, PETRI_DIFFERENCE_MINUEND_FLOW=1925, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=954, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1923, PETRI_PLACES=948, PETRI_TRANSITIONS=953} [2023-11-26 10:45:39,204 INFO L281 CegarLoopForPetriNet]: 1000 programPoint places, -52 predicate places. [2023-11-26 10:45:39,205 INFO L495 AbstractCegarLoop]: Abstraction has has 948 places, 953 transitions, 1923 flow [2023-11-26 10:45:39,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 776.5) internal successors, (4659), 6 states have internal predecessors, (4659), 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) [2023-11-26 10:45:39,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:39,211 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] [2023-11-26 10:45:39,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:45:39,212 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)] === [2023-11-26 10:45:39,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:39,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1264890119, now seen corresponding path program 1 times [2023-11-26 10:45:39,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:39,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211375802] [2023-11-26 10:45:39,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:39,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:39,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:39,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:39,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211375802] [2023-11-26 10:45:39,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211375802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:39,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:39,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:45:39,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492686859] [2023-11-26 10:45:39,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:39,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:39,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:39,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:39,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:39,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 988 out of 1088 [2023-11-26 10:45:39,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 948 places, 953 transitions, 1923 flow. Second operand has 3 states, 3 states have (on average 989.3333333333334) internal successors, (2968), 3 states have internal predecessors, (2968), 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) [2023-11-26 10:45:39,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:39,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 988 of 1088 [2023-11-26 10:45:39,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:41,156 INFO L124 PetriNetUnfolderBase]: 243/4808 cut-off events. [2023-11-26 10:45:41,156 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 10:45:41,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5127 conditions, 4808 events. 243/4808 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 36348 event pairs, 110 based on Foata normal form. 1/4153 useless extension candidates. Maximal degree in co-relation 5043. Up to 302 conditions per place. [2023-11-26 10:45:41,222 INFO L140 encePairwiseOnDemand]: 1085/1088 looper letters, 27 selfloop transitions, 2 changer transitions 0/954 dead transitions. [2023-11-26 10:45:41,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 944 places, 954 transitions, 1983 flow [2023-11-26 10:45:41,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:41,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:41,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2994 transitions. [2023-11-26 10:45:41,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9172794117647058 [2023-11-26 10:45:41,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2994 transitions. [2023-11-26 10:45:41,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2994 transitions. [2023-11-26 10:45:41,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:41,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2994 transitions. [2023-11-26 10:45:41,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 998.0) internal successors, (2994), 3 states have internal predecessors, (2994), 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) [2023-11-26 10:45:41,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1088.0) internal successors, (4352), 4 states have internal predecessors, (4352), 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) [2023-11-26 10:45:41,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1088.0) internal successors, (4352), 4 states have internal predecessors, (4352), 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) [2023-11-26 10:45:41,266 INFO L175 Difference]: Start difference. First operand has 948 places, 953 transitions, 1923 flow. Second operand 3 states and 2994 transitions. [2023-11-26 10:45:41,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 944 places, 954 transitions, 1983 flow [2023-11-26 10:45:41,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 939 places, 954 transitions, 1973 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:45:41,293 INFO L231 Difference]: Finished difference. Result has 940 places, 954 transitions, 1925 flow [2023-11-26 10:45:41,295 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1088, PETRI_DIFFERENCE_MINUEND_FLOW=1913, PETRI_DIFFERENCE_MINUEND_PLACES=937, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=953, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=951, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1925, PETRI_PLACES=940, PETRI_TRANSITIONS=954} [2023-11-26 10:45:41,296 INFO L281 CegarLoopForPetriNet]: 1000 programPoint places, -60 predicate places. [2023-11-26 10:45:41,297 INFO L495 AbstractCegarLoop]: Abstraction has has 940 places, 954 transitions, 1925 flow [2023-11-26 10:45:41,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 989.3333333333334) internal successors, (2968), 3 states have internal predecessors, (2968), 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) [2023-11-26 10:45:41,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:41,301 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] [2023-11-26 10:45:41,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:45:41,301 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)] === [2023-11-26 10:45:41,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:41,302 INFO L85 PathProgramCache]: Analyzing trace with hash -576792649, now seen corresponding path program 1 times [2023-11-26 10:45:41,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:41,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422038199] [2023-11-26 10:45:41,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:41,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:41,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:41,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:41,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422038199] [2023-11-26 10:45:41,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422038199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:41,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:41,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:45:41,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095088916] [2023-11-26 10:45:41,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:41,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:45:41,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:41,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:45:41,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:45:44,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 775 out of 1088 [2023-11-26 10:45:44,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 954 transitions, 1925 flow. Second operand has 6 states, 6 states have (on average 776.5) internal successors, (4659), 6 states have internal predecessors, (4659), 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) [2023-11-26 10:45:44,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:44,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 775 of 1088 [2023-11-26 10:45:44,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand