./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB/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_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB --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 0.3.0-dev-d790fec [2024-11-27 20:31:20,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:31:20,171 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-27 20:31:20,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:31:20,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:31:20,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:31:20,209 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:31:20,209 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:31:20,210 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:31:20,210 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:31:20,210 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:31:20,211 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:31:20,211 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:31:20,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:31:20,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:31:20,211 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:31:20,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:31:20,212 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:31:20,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:31:20,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:31:20,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:31:20,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:31:20,213 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-27 20:31:20,213 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:31:20,213 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:31:20,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:31:20,213 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:31:20,214 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:31:20,214 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:31:20,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:31:20,214 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:31:20,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:31:20,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:31:20,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:31:20,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:31:20,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:31:20,215 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:31:20,215 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:31:20,215 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:31:20,215 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:31:20,216 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:31:20,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:31:20,216 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:31:20,216 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:31:20,216 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:31:20,216 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:31:20,216 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB 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 [2024-11-27 20:31:20,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:31:20,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:31:20,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:31:20,594 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:31:20,596 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:31:20,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2024-11-27 20:31:24,083 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB/data/0d0dba382/6ddca12e36ad46ceb4bbd6dbab7533aa/FLAG54650c766 [2024-11-27 20:31:24,573 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:31:24,574 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2024-11-27 20:31:24,599 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB/data/0d0dba382/6ddca12e36ad46ceb4bbd6dbab7533aa/FLAG54650c766 [2024-11-27 20:31:24,617 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB/data/0d0dba382/6ddca12e36ad46ceb4bbd6dbab7533aa [2024-11-27 20:31:24,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:31:24,621 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:31:24,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:31:24,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:31:24,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:31:24,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:31:24" (1/1) ... [2024-11-27 20:31:24,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24aaf659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:24, skipping insertion in model container [2024-11-27 20:31:24,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:31:24" (1/1) ... [2024-11-27 20:31:24,679 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:31:25,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:31:25,191 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:31:25,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:31:25,395 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:31:25,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25 WrapperNode [2024-11-27 20:31:25,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:31:25,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:31:25,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:31:25,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:31:25,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25" (1/1) ... [2024-11-27 20:31:25,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25" (1/1) ... [2024-11-27 20:31:25,502 INFO L138 Inliner]: procedures = 174, calls = 94, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 896 [2024-11-27 20:31:25,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:31:25,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:31:25,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:31:25,504 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:31:25,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25" (1/1) ... [2024-11-27 20:31:25,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25" (1/1) ... [2024-11-27 20:31:25,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25" (1/1) ... [2024-11-27 20:31:25,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25" (1/1) ... [2024-11-27 20:31:25,627 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25" (1/1) ... [2024-11-27 20:31:25,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25" (1/1) ... [2024-11-27 20:31:25,640 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25" (1/1) ... [2024-11-27 20:31:25,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25" (1/1) ... [2024-11-27 20:31:25,649 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25" (1/1) ... [2024-11-27 20:31:25,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:31:25,659 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:31:25,659 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:31:25,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:31:25,661 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25" (1/1) ... [2024-11-27 20:31:25,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:31:25,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:25,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:31:25,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e13d05d-9482-444d-9203-da83a4568b22/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:31:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 20:31:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 20:31:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-27 20:31:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-27 20:31:25,765 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-27 20:31:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:31:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-27 20:31:25,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:31:25,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-27 20:31:25,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:31:25,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 20:31:25,767 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-27 20:31:25,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:31:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:31:25,770 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:31:26,013 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:31:26,016 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:31:28,098 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:31:28,098 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:31:28,209 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:31:28,209 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-27 20:31:28,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:31:28 BoogieIcfgContainer [2024-11-27 20:31:28,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:31:28,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:31:28,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:31:28,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:31:28,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:31:24" (1/3) ... [2024-11-27 20:31:28,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5e5bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:31:28, skipping insertion in model container [2024-11-27 20:31:28,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:25" (2/3) ... [2024-11-27 20:31:28,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5e5bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:31:28, skipping insertion in model container [2024-11-27 20:31:28,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:31:28" (3/3) ... [2024-11-27 20:31:28,233 INFO L128 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_3t.i [2024-11-27 20:31:28,256 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:31:28,258 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_twice_3t.i that has 2 procedures, 978 locations, 1 initial locations, 16 loop locations, and 79 error locations. [2024-11-27 20:31:28,258 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:31:28,676 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-27 20:31:28,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 981 places, 1069 transitions, 2145 flow [2024-11-27 20:31:30,044 INFO L124 PetriNetUnfolderBase]: 137/1569 cut-off events. [2024-11-27 20:31:30,047 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 20:31:30,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1574 conditions, 1569 events. 137/1569 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5635 event pairs, 0 based on Foata normal form. 0/1312 useless extension candidates. Maximal degree in co-relation 926. Up to 4 conditions per place. [2024-11-27 20:31:30,114 INFO L82 GeneralOperation]: Start removeDead. Operand has 981 places, 1069 transitions, 2145 flow [2024-11-27 20:31:30,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 981 places, 1069 transitions, 2145 flow [2024-11-27 20:31:30,175 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:31:30,198 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c2d65f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:31:30,201 INFO L334 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2024-11-27 20:31:30,214 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:31:30,214 INFO L124 PetriNetUnfolderBase]: 1/55 cut-off events. [2024-11-27 20:31:30,214 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:31:30,214 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:31:30,217 INFO L206 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] [2024-11-27 20:31:30,217 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-27 20:31:30,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:30,226 INFO L85 PathProgramCache]: Analyzing trace with hash -361000276, now seen corresponding path program 1 times [2024-11-27 20:31:30,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:30,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850008146] [2024-11-27 20:31:30,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:30,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:31,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:31:31,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:31,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850008146] [2024-11-27 20:31:31,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850008146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:31,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:31,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:31:31,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174603186] [2024-11-27 20:31:31,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:31,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:31:31,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:31,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:31:31,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:34,235 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 1069 [2024-11-27 20:31:34,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 981 places, 1069 transitions, 2145 flow. Second operand has 6 states, 6 states have (on average 753.5) internal successors, (4521), 6 states have internal predecessors, (4521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:31:34,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:31:34,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 1069 [2024-11-27 20:31:34,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:31:51,494 INFO L124 PetriNetUnfolderBase]: 12703/59334 cut-off events. [2024-11-27 20:31:51,494 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-11-27 20:31:51,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82751 conditions, 59334 events. 12703/59334 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 691253 event pairs, 11413 based on Foata normal form. 7036/59259 useless extension candidates. Maximal degree in co-relation 82018. Up to 23407 conditions per place. [2024-11-27 20:31:51,955 INFO L140 encePairwiseOnDemand]: 991/1069 looper letters, 239 selfloop transitions, 5 changer transitions 6/968 dead transitions. [2024-11-27 20:31:51,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 968 transitions, 2431 flow [2024-11-27 20:31:51,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:31:51,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:31:51,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4829 transitions. [2024-11-27 20:31:52,003 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7528843155597131 [2024-11-27 20:31:52,008 INFO L175 Difference]: Start difference. First operand has 981 places, 1069 transitions, 2145 flow. Second operand 6 states and 4829 transitions. [2024-11-27 20:31:52,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 968 transitions, 2431 flow [2024-11-27 20:31:52,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 968 transitions, 2431 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 20:31:52,056 INFO L231 Difference]: Finished difference. Result has 957 places, 962 transitions, 1941 flow [2024-11-27 20:31:52,062 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1069, PETRI_DIFFERENCE_MINUEND_FLOW=1943, PETRI_DIFFERENCE_MINUEND_PLACES=952, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=963, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1941, PETRI_PLACES=957, PETRI_TRANSITIONS=962} [2024-11-27 20:31:52,071 INFO L279 CegarLoopForPetriNet]: 981 programPoint places, -24 predicate places. [2024-11-27 20:31:52,071 INFO L471 AbstractCegarLoop]: Abstraction has has 957 places, 962 transitions, 1941 flow [2024-11-27 20:31:52,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 753.5) internal successors, (4521), 6 states have internal predecessors, (4521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:31:52,076 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:31:52,076 INFO L206 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] [2024-11-27 20:31:52,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:31:52,078 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-27 20:31:52,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:52,080 INFO L85 PathProgramCache]: Analyzing trace with hash 393961428, now seen corresponding path program 1 times [2024-11-27 20:31:52,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:52,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484616642] [2024-11-27 20:31:52,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:52,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:31:52,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:52,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484616642] [2024-11-27 20:31:52,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484616642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:52,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:52,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:31:52,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246112717] [2024-11-27 20:31:52,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:52,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:31:52,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:52,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:31:52,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:31:52,322 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 969 out of 1069 [2024-11-27 20:31:52,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 962 transitions, 1941 flow. Second operand has 3 states, 3 states have (on average 970.3333333333334) internal successors, (2911), 3 states have internal predecessors, (2911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:31:52,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:31:52,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 969 of 1069 [2024-11-27 20:31:52,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:31:54,412 INFO L124 PetriNetUnfolderBase]: 247/4828 cut-off events. [2024-11-27 20:31:54,412 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-27 20:31:54,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5151 conditions, 4828 events. 247/4828 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36262 event pairs, 110 based on Foata normal form. 1/4167 useless extension candidates. Maximal degree in co-relation 5062. Up to 306 conditions per place. [2024-11-27 20:31:54,450 INFO L140 encePairwiseOnDemand]: 1066/1069 looper letters, 27 selfloop transitions, 2 changer transitions 0/963 dead transitions. [2024-11-27 20:31:54,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 963 transitions, 2001 flow [2024-11-27 20:31:54,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:31:54,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:31:54,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2937 transitions. [2024-11-27 20:31:54,458 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9158091674462114 [2024-11-27 20:31:54,458 INFO L175 Difference]: Start difference. First operand has 957 places, 962 transitions, 1941 flow. Second operand 3 states and 2937 transitions. [2024-11-27 20:31:54,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 963 transitions, 2001 flow [2024-11-27 20:31:54,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 948 places, 963 transitions, 1991 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 20:31:54,480 INFO L231 Difference]: Finished difference. Result has 949 places, 963 transitions, 1943 flow [2024-11-27 20:31:54,482 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1069, PETRI_DIFFERENCE_MINUEND_FLOW=1931, PETRI_DIFFERENCE_MINUEND_PLACES=946, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=960, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1943, PETRI_PLACES=949, PETRI_TRANSITIONS=963} [2024-11-27 20:31:54,483 INFO L279 CegarLoopForPetriNet]: 981 programPoint places, -32 predicate places. [2024-11-27 20:31:54,483 INFO L471 AbstractCegarLoop]: Abstraction has has 949 places, 963 transitions, 1943 flow [2024-11-27 20:31:54,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 970.3333333333334) internal successors, (2911), 3 states have internal predecessors, (2911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:31:54,486 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:31:54,486 INFO L206 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] [2024-11-27 20:31:54,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:31:54,486 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-27 20:31:54,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:54,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1776568676, now seen corresponding path program 1 times [2024-11-27 20:31:54,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:54,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349483981] [2024-11-27 20:31:54,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:54,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:31:55,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:55,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349483981] [2024-11-27 20:31:55,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349483981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:55,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:55,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:31:55,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039424398] [2024-11-27 20:31:55,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:55,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:31:55,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:55,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:31:55,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:57,723 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 1069 [2024-11-27 20:31:57,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 963 transitions, 1943 flow. Second operand has 6 states, 6 states have (on average 753.5) internal successors, (4521), 6 states have internal predecessors, (4521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:31:57,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:31:57,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 1069 [2024-11-27 20:31:57,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:32:14,713 INFO L124 PetriNetUnfolderBase]: 12703/59355 cut-off events. [2024-11-27 20:32:14,713 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-27 20:32:14,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82787 conditions, 59355 events. 12703/59355 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 690952 event pairs, 11413 based on Foata normal form. 0/52247 useless extension candidates. Maximal degree in co-relation 82703. Up to 23410 conditions per place. [2024-11-27 20:32:14,924 INFO L140 encePairwiseOnDemand]: 1063/1069 looper letters, 240 selfloop transitions, 5 changer transitions 0/962 dead transitions. [2024-11-27 20:32:14,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 962 transitions, 2431 flow [2024-11-27 20:32:14,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:32:14,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:32:14,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4757 transitions. [2024-11-27 20:32:14,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.741658871219208 [2024-11-27 20:32:14,943 INFO L175 Difference]: Start difference. First operand has 949 places, 963 transitions, 1943 flow. Second operand 6 states and 4757 transitions. [2024-11-27 20:32:14,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 962 transitions, 2431 flow [2024-11-27 20:32:14,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 952 places, 962 transitions, 2429 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:32:14,968 INFO L231 Difference]: Finished difference. Result has 952 places, 962 transitions, 1949 flow [2024-11-27 20:32:14,970 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1069, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=947, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1949, PETRI_PLACES=952, PETRI_TRANSITIONS=962} [2024-11-27 20:32:14,971 INFO L279 CegarLoopForPetriNet]: 981 programPoint places, -29 predicate places. [2024-11-27 20:32:14,972 INFO L471 AbstractCegarLoop]: Abstraction has has 952 places, 962 transitions, 1949 flow [2024-11-27 20:32:14,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 753.5) internal successors, (4521), 6 states have internal predecessors, (4521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:14,975 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:32:14,975 INFO L206 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] [2024-11-27 20:32:14,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:32:14,976 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-27 20:32:14,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:14,977 INFO L85 PathProgramCache]: Analyzing trace with hash -612279079, now seen corresponding path program 1 times [2024-11-27 20:32:14,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:14,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897394720] [2024-11-27 20:32:14,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:14,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:15,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:15,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897394720] [2024-11-27 20:32:15,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897394720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:15,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:15,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:32:15,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245881195] [2024-11-27 20:32:15,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:15,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:32:15,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:15,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:32:15,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:32:17,873 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 1069 [2024-11-27 20:32:17,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 962 transitions, 1949 flow. Second operand has 6 states, 6 states have (on average 753.5) internal successors, (4521), 6 states have internal predecessors, (4521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:17,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:32:17,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 1069 [2024-11-27 20:32:17,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand