./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl --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 a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:10:26,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:10:26,335 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:10:26,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:10:26,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:10:26,400 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:10:26,401 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:10:26,402 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:10:26,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:10:26,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:10:26,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:10:26,409 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:10:26,410 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:10:26,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:10:26,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:10:26,412 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:10:26,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:10:26,413 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:10:26,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:10:26,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:10:26,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:10:26,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:10:26,415 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:10:26,416 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:10:26,416 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:10:26,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:10:26,417 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:10:26,418 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:10:26,418 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:10:26,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:10:26,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:10:26,420 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:10:26,420 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:10:26,420 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:10:26,421 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:10:26,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:10:26,421 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:10:26,421 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:10:26,421 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:10:26,422 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:10:26,422 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:10:26,422 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_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2023-11-12 02:10:26,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:10:26,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:10:26,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:10:26,808 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:10:26,809 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:10:26,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2023-11-12 02:10:30,022 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:10:30,390 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:10:30,391 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2023-11-12 02:10:30,427 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl/data/c2dc3f673/2c15234fb2af4e97afc694b2ab9e855f/FLAG1a7da2d15 [2023-11-12 02:10:30,441 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl/data/c2dc3f673/2c15234fb2af4e97afc694b2ab9e855f [2023-11-12 02:10:30,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:10:30,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:10:30,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:10:30,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:10:30,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:10:30,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:10:30" (1/1) ... [2023-11-12 02:10:30,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42728d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:30, skipping insertion in model container [2023-11-12 02:10:30,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:10:30" (1/1) ... [2023-11-12 02:10:30,517 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:10:31,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:10:31,214 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:10:31,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:10:31,420 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:10:31,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:31 WrapperNode [2023-11-12 02:10:31,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:10:31,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:10:31,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:10:31,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:10:31,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:31" (1/1) ... [2023-11-12 02:10:31,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:31" (1/1) ... [2023-11-12 02:10:31,509 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 235 [2023-11-12 02:10:31,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:10:31,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:10:31,511 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:10:31,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:10:31,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:31" (1/1) ... [2023-11-12 02:10:31,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:31" (1/1) ... [2023-11-12 02:10:31,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:31" (1/1) ... [2023-11-12 02:10:31,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:31" (1/1) ... [2023-11-12 02:10:31,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:31" (1/1) ... [2023-11-12 02:10:31,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:31" (1/1) ... [2023-11-12 02:10:31,578 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:31" (1/1) ... [2023-11-12 02:10:31,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:31" (1/1) ... [2023-11-12 02:10:31,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:10:31,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:10:31,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:10:31,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:10:31,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:31" (1/1) ... [2023-11-12 02:10:31,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:10:31,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:31,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:31,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae8c914-730d-4efe-9ce0-bf3a08fa71b4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:10:31,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:10:31,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:10:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:10:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:10:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:10:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:10:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:10:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:10:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:10:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:10:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 02:10:31,672 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 02:10:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:10:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:10:31,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:10:31,674 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:10:31,863 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:10:31,865 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:10:32,578 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:10:32,589 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:10:32,589 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:10:32,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:10:32 BoogieIcfgContainer [2023-11-12 02:10:32,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:10:32,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:10:32,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:10:32,598 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:10:32,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:10:30" (1/3) ... [2023-11-12 02:10:32,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fdde0f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:10:32, skipping insertion in model container [2023-11-12 02:10:32,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:31" (2/3) ... [2023-11-12 02:10:32,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fdde0f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:10:32, skipping insertion in model container [2023-11-12 02:10:32,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:10:32" (3/3) ... [2023-11-12 02:10:32,602 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2023-11-12 02:10:32,612 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:10:32,624 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:10:32,624 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-12 02:10:32,624 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:10:32,763 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:10:32,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 270 transitions, 544 flow [2023-11-12 02:10:33,028 INFO L124 PetriNetUnfolderBase]: 2/269 cut-off events. [2023-11-12 02:10:33,030 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:10:33,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 269 events. 2/269 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2023-11-12 02:10:33,044 INFO L82 GeneralOperation]: Start removeDead. Operand has 272 places, 270 transitions, 544 flow [2023-11-12 02:10:33,058 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 271 places, 269 transitions, 541 flow [2023-11-12 02:10:33,063 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:10:33,094 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 271 places, 269 transitions, 541 flow [2023-11-12 02:10:33,099 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 271 places, 269 transitions, 541 flow [2023-11-12 02:10:33,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 271 places, 269 transitions, 541 flow [2023-11-12 02:10:33,222 INFO L124 PetriNetUnfolderBase]: 2/269 cut-off events. [2023-11-12 02:10:33,223 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:10:33,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 269 events. 2/269 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2023-11-12 02:10:33,242 INFO L119 LiptonReduction]: Number of co-enabled transitions 19488 [2023-11-12 02:11:23,902 WARN L293 SmtUtils]: Spent 36.22s on a formula simplification. DAG size of input: 143 DAG size of output: 137 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-12 02:11:30,787 WARN L293 SmtUtils]: Spent 6.88s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)