./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC --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 f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:08:59,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:08:59,339 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-24 01:08:59,344 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:08:59,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:08:59,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:08:59,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:08:59,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:08:59,376 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:08:59,376 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:08:59,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:08:59,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:08:59,378 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:08:59,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:08:59,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:08:59,379 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:08:59,379 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:08:59,379 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:08:59,379 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:08:59,379 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:08:59,379 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:08:59,379 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:08:59,379 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 01:08:59,380 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:08:59,380 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:08:59,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:08:59,380 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:08:59,380 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:08:59,380 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:08:59,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:08:59,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:08:59,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:08:59,381 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:08:59,381 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:08:59,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:08:59,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:08:59,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:08:59,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:08:59,381 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:08:59,381 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:08:59,382 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:08:59,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:08:59,382 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:08:59,382 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:08:59,382 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:08:59,382 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:08:59,382 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_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC 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 -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2024-11-24 01:08:59,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:08:59,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:08:59,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:08:59,727 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:08:59,727 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:08:59,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2024-11-24 01:09:02,715 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC/data/64736991b/520dc6ea535e45478acae2b4e1e21ef8/FLAG404e7a431 [2024-11-24 01:09:03,193 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:09:03,194 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2024-11-24 01:09:03,222 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC/data/64736991b/520dc6ea535e45478acae2b4e1e21ef8/FLAG404e7a431 [2024-11-24 01:09:03,281 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC/data/64736991b/520dc6ea535e45478acae2b4e1e21ef8 [2024-11-24 01:09:03,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:09:03,285 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:09:03,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:09:03,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:09:03,293 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:09:03,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:09:03" (1/1) ... [2024-11-24 01:09:03,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae18f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:03, skipping insertion in model container [2024-11-24 01:09:03,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:09:03" (1/1) ... [2024-11-24 01:09:03,347 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:09:03,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:09:04,010 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:09:04,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:09:04,155 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:09:04,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04 WrapperNode [2024-11-24 01:09:04,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:09:04,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:09:04,157 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:09:04,157 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:09:04,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04" (1/1) ... [2024-11-24 01:09:04,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04" (1/1) ... [2024-11-24 01:09:04,243 INFO L138 Inliner]: procedures = 280, calls = 99, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 630 [2024-11-24 01:09:04,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:09:04,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:09:04,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:09:04,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:09:04,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04" (1/1) ... [2024-11-24 01:09:04,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04" (1/1) ... [2024-11-24 01:09:04,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04" (1/1) ... [2024-11-24 01:09:04,266 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04" (1/1) ... [2024-11-24 01:09:04,299 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04" (1/1) ... [2024-11-24 01:09:04,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04" (1/1) ... [2024-11-24 01:09:04,308 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04" (1/1) ... [2024-11-24 01:09:04,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04" (1/1) ... [2024-11-24 01:09:04,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04" (1/1) ... [2024-11-24 01:09:04,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:09:04,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:09:04,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:09:04,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:09:04,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04" (1/1) ... [2024-11-24 01:09:04,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:09:04,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:09:04,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:09:04,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02d9b4b-7dcd-47a4-9d64-df1d3082dd2b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:09:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:09:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-24 01:09:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-24 01:09:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-24 01:09:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:09:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 01:09:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 01:09:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-24 01:09:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-24 01:09:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 01:09:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 01:09:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:09:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:09:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-24 01:09:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-11-24 01:09:04,396 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-11-24 01:09:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 01:09:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:09:04,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:09:04,398 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 01:09:04,628 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:09:04,630 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:09:05,818 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 01:09:05,819 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:09:05,871 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:09:05,871 INFO L312 CfgBuilder]: Removed 19 assume(true) statements. [2024-11-24 01:09:05,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:09:05 BoogieIcfgContainer [2024-11-24 01:09:05,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:09:05,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:09:05,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:09:05,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:09:05,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:09:03" (1/3) ... [2024-11-24 01:09:05,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a02ee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:09:05, skipping insertion in model container [2024-11-24 01:09:05,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:04" (2/3) ... [2024-11-24 01:09:05,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a02ee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:09:05, skipping insertion in model container [2024-11-24 01:09:05,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:09:05" (3/3) ... [2024-11-24 01:09:05,881 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2024-11-24 01:09:05,895 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:09:05,897 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_84-list2_racing2.i that has 4 procedures, 645 locations, 1 initial locations, 19 loop locations, and 44 error locations. [2024-11-24 01:09:05,897 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 01:09:06,146 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-11-24 01:09:06,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 654 places, 698 transitions, 1435 flow [2024-11-24 01:09:07,618 INFO L124 PetriNetUnfolderBase]: 195/2491 cut-off events. [2024-11-24 01:09:07,622 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-24 01:09:07,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2545 conditions, 2491 events. 195/2491 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 18089 event pairs, 0 based on Foata normal form. 0/2137 useless extension candidates. Maximal degree in co-relation 1264. Up to 16 conditions per place. [2024-11-24 01:09:07,737 INFO L82 GeneralOperation]: Start removeDead. Operand has 654 places, 698 transitions, 1435 flow [2024-11-24 01:09:07,867 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 654 places, 698 transitions, 1435 flow [2024-11-24 01:09:07,878 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:09:07,894 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;@39fab2fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:09:07,895 INFO L334 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2024-11-24 01:09:07,907 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 01:09:07,908 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2024-11-24 01:09:07,908 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:09:07,908 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:09:07,909 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] [2024-11-24 01:09:07,912 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-24 01:09:07,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:07,918 INFO L85 PathProgramCache]: Analyzing trace with hash 2103733037, now seen corresponding path program 1 times [2024-11-24 01:09:07,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:07,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128306082] [2024-11-24 01:09:07,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:07,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:08,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:09:08,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:08,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128306082] [2024-11-24 01:09:08,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128306082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:08,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:08,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:09:08,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046923599] [2024-11-24 01:09:08,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:08,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:08,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:08,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:08,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:08,385 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 698 [2024-11-24 01:09:08,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 698 transitions, 1435 flow. Second operand has 3 states, 3 states have (on average 615.3333333333334) internal successors, (1846), 3 states have internal predecessors, (1846), 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) [2024-11-24 01:09:08,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:09:08,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 698 [2024-11-24 01:09:08,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:09:30,557 INFO L124 PetriNetUnfolderBase]: 14982/93326 cut-off events. [2024-11-24 01:09:30,557 INFO L125 PetriNetUnfolderBase]: For 2600/2600 co-relation queries the response was YES. [2024-11-24 01:09:31,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113616 conditions, 93326 events. 14982/93326 cut-off events. For 2600/2600 co-relation queries the response was YES. Maximal size of possible extension queue 1314. Compared 1461149 event pairs, 12992 based on Foata normal form. 13305/98048 useless extension candidates. Maximal degree in co-relation 86628. Up to 19299 conditions per place. [2024-11-24 01:09:32,038 INFO L140 encePairwiseOnDemand]: 662/698 looper letters, 46 selfloop transitions, 2 changer transitions 0/660 dead transitions. [2024-11-24 01:09:32,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 651 places, 660 transitions, 1455 flow [2024-11-24 01:09:32,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:32,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:09:32,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1924 transitions. [2024-11-24 01:09:32,056 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9188156638013372 [2024-11-24 01:09:32,058 INFO L175 Difference]: Start difference. First operand has 654 places, 698 transitions, 1435 flow. Second operand 3 states and 1924 transitions. [2024-11-24 01:09:32,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 651 places, 660 transitions, 1455 flow [2024-11-24 01:09:32,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 651 places, 660 transitions, 1455 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 01:09:32,093 INFO L231 Difference]: Finished difference. Result has 651 places, 660 transitions, 1363 flow [2024-11-24 01:09:32,096 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=1359, PETRI_DIFFERENCE_MINUEND_PLACES=649, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=658, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1363, PETRI_PLACES=651, PETRI_TRANSITIONS=660} [2024-11-24 01:09:32,099 INFO L279 CegarLoopForPetriNet]: 654 programPoint places, -3 predicate places. [2024-11-24 01:09:32,100 INFO L471 AbstractCegarLoop]: Abstraction has has 651 places, 660 transitions, 1363 flow [2024-11-24 01:09:32,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 615.3333333333334) internal successors, (1846), 3 states have internal predecessors, (1846), 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) [2024-11-24 01:09:32,101 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:09:32,101 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] [2024-11-24 01:09:32,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:09:32,102 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-24 01:09:32,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:32,103 INFO L85 PathProgramCache]: Analyzing trace with hash 329675670, now seen corresponding path program 1 times [2024-11-24 01:09:32,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:32,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674015607] [2024-11-24 01:09:32,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:32,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:32,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:09:32,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:32,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674015607] [2024-11-24 01:09:32,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674015607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:32,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:32,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:09:32,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821574246] [2024-11-24 01:09:32,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:32,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:32,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:32,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:32,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:32,270 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 612 out of 698 [2024-11-24 01:09:32,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 651 places, 660 transitions, 1363 flow. Second operand has 3 states, 3 states have (on average 613.0) internal successors, (1839), 3 states have internal predecessors, (1839), 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) [2024-11-24 01:09:32,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:09:32,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 612 of 698 [2024-11-24 01:09:32,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand