./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 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:41:32,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:41:32,736 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:41:32,753 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:41:32,753 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:41:32,788 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:41:32,790 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:41:32,790 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:41:32,791 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:41:32,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:41:32,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:41:32,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:41:32,794 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:41:32,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:41:32,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:41:32,796 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:41:32,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:41:32,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:41:32,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:41:32,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:41:32,798 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:41:32,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:41:32,798 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:41:32,798 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:41:32,799 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:41:32,799 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:41:32,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:41:32,799 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:41:32,800 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:41:32,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:41:32,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:41:32,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:41:32,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:41:32,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:41:32,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:41:32,802 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:41:32,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:41:32,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:41:32,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:41:32,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:41:32,803 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:41:32,804 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2024-11-16 23:41:33,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:41:33,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:41:33,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:41:33,062 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:41:33,062 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:41:33,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2024-11-16 23:41:34,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:41:34,856 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:41:34,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2024-11-16 23:41:34,877 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21759a4c2/df063083c1cc408797c143913efacf92/FLAGa569d4d9d [2024-11-16 23:41:34,892 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21759a4c2/df063083c1cc408797c143913efacf92 [2024-11-16 23:41:34,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:41:34,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:41:34,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:41:34,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:41:34,902 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:41:34,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:41:34" (1/1) ... [2024-11-16 23:41:34,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@520ff7e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:34, skipping insertion in model container [2024-11-16 23:41:34,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:41:34" (1/1) ... [2024-11-16 23:41:34,953 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:41:35,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:41:35,497 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:41:35,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:41:35,649 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:41:35,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:35 WrapperNode [2024-11-16 23:41:35,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:41:35,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:41:35,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:41:35,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:41:35,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:35" (1/1) ... [2024-11-16 23:41:35,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:35" (1/1) ... [2024-11-16 23:41:35,757 INFO L138 Inliner]: procedures = 280, calls = 99, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 630 [2024-11-16 23:41:35,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:41:35,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:41:35,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:41:35,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:41:35,773 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:35" (1/1) ... [2024-11-16 23:41:35,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:35" (1/1) ... [2024-11-16 23:41:35,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:35" (1/1) ... [2024-11-16 23:41:35,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:35" (1/1) ... [2024-11-16 23:41:35,842 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:35" (1/1) ... [2024-11-16 23:41:35,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:35" (1/1) ... [2024-11-16 23:41:35,848 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:35" (1/1) ... [2024-11-16 23:41:35,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:35" (1/1) ... [2024-11-16 23:41:35,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:41:35,871 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:41:35,871 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:41:35,871 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:41:35,872 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:35" (1/1) ... [2024-11-16 23:41:35,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:41:35,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:41:35,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:41:35,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:41:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:41:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-16 23:41:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-16 23:41:36,007 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-16 23:41:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:41:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:41:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:41:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-16 23:41:36,008 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-16 23:41:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:41:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:41:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:41:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:41:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-16 23:41:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-11-16 23:41:36,009 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-11-16 23:41:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:41:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:41:36,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:41:36,011 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:41:36,200 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:41:36,203 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:41:37,134 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2024-11-16 23:41:37,135 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-1: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2024-11-16 23:41:37,135 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2024-11-16 23:41:37,135 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2024-11-16 23:41:37,135 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055: havoc main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset; [2024-11-16 23:41:37,135 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055-1: SUMMARY for call ULTIMATE.dealloc(main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset); srcloc: null [2024-11-16 23:41:37,137 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:41:37,137 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:41:37,204 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:41:37,205 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:41:37,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:41:37 BoogieIcfgContainer [2024-11-16 23:41:37,208 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:41:37,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:41:37,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:41:37,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:41:37,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:41:34" (1/3) ... [2024-11-16 23:41:37,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465c4e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:41:37, skipping insertion in model container [2024-11-16 23:41:37,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:35" (2/3) ... [2024-11-16 23:41:37,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465c4e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:41:37, skipping insertion in model container [2024-11-16 23:41:37,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:41:37" (3/3) ... [2024-11-16 23:41:37,218 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2024-11-16 23:41:37,269 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:41:37,269 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2024-11-16 23:41:37,270 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:41:37,475 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-11-16 23:41:37,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 669 places, 713 transitions, 1465 flow [2024-11-16 23:41:38,523 INFO L124 PetriNetUnfolderBase]: 195/2561 cut-off events. [2024-11-16 23:41:38,523 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-16 23:41:38,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2615 conditions, 2561 events. 195/2561 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 18753 event pairs, 0 based on Foata normal form. 0/2207 useless extension candidates. Maximal degree in co-relation 1299. Up to 16 conditions per place. [2024-11-16 23:41:38,601 INFO L82 GeneralOperation]: Start removeDead. Operand has 669 places, 713 transitions, 1465 flow [2024-11-16 23:41:38,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 669 places, 713 transitions, 1465 flow [2024-11-16 23:41:38,661 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:41:38,671 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;@1d67f155, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:41:38,671 INFO L334 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2024-11-16 23:41:38,678 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:41:38,679 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2024-11-16 23:41:38,679 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:41:38,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:38,681 INFO L204 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] [2024-11-16 23:41:38,682 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:41:38,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:38,687 INFO L85 PathProgramCache]: Analyzing trace with hash 350102939, now seen corresponding path program 1 times [2024-11-16 23:41:38,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:38,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283772920] [2024-11-16 23:41:38,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:38,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:39,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:39,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:39,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283772920] [2024-11-16 23:41:39,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283772920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:39,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:39,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:41:39,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545049842] [2024-11-16 23:41:39,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:39,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:41:39,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:39,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:41:39,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:41:39,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 713 [2024-11-16 23:41:39,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 669 places, 713 transitions, 1465 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 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) [2024-11-16 23:41:39,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:39,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 713 [2024-11-16 23:41:39,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:02,018 INFO L124 PetriNetUnfolderBase]: 14982/95744 cut-off events. [2024-11-16 23:42:02,019 INFO L125 PetriNetUnfolderBase]: For 2600/2600 co-relation queries the response was YES. [2024-11-16 23:42:03,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116034 conditions, 95744 events. 14982/95744 cut-off events. For 2600/2600 co-relation queries the response was YES. Maximal size of possible extension queue 1287. Compared 1504273 event pairs, 12992 based on Foata normal form. 16162/103335 useless extension candidates. Maximal degree in co-relation 88455. Up to 19299 conditions per place. [2024-11-16 23:42:04,094 INFO L140 encePairwiseOnDemand]: 677/713 looper letters, 46 selfloop transitions, 2 changer transitions 0/675 dead transitions. [2024-11-16 23:42:04,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 666 places, 675 transitions, 1485 flow [2024-11-16 23:42:04,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:42:04,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:42:04,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1969 transitions. [2024-11-16 23:42:04,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9205236091631603 [2024-11-16 23:42:04,125 INFO L175 Difference]: Start difference. First operand has 669 places, 713 transitions, 1465 flow. Second operand 3 states and 1969 transitions. [2024-11-16 23:42:04,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 666 places, 675 transitions, 1485 flow [2024-11-16 23:42:04,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 666 places, 675 transitions, 1485 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:42:04,156 INFO L231 Difference]: Finished difference. Result has 666 places, 675 transitions, 1393 flow [2024-11-16 23:42:04,160 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=713, PETRI_DIFFERENCE_MINUEND_FLOW=1389, PETRI_DIFFERENCE_MINUEND_PLACES=664, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=673, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1393, PETRI_PLACES=666, PETRI_TRANSITIONS=675} [2024-11-16 23:42:04,163 INFO L277 CegarLoopForPetriNet]: 669 programPoint places, -3 predicate places. [2024-11-16 23:42:04,164 INFO L471 AbstractCegarLoop]: Abstraction has has 666 places, 675 transitions, 1393 flow [2024-11-16 23:42:04,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 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) [2024-11-16 23:42:04,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:04,166 INFO L204 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] [2024-11-16 23:42:04,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:42:04,166 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:42:04,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:04,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1974614768, now seen corresponding path program 1 times [2024-11-16 23:42:04,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:04,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477955585] [2024-11-16 23:42:04,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:04,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:04,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:04,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:04,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477955585] [2024-11-16 23:42:04,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477955585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:04,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:42:04,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:42:04,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031387220] [2024-11-16 23:42:04,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:04,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:42:04,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:04,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:42:04,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:42:04,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 627 out of 713 [2024-11-16 23:42:04,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 675 transitions, 1393 flow. Second operand has 3 states, 3 states have (on average 628.0) internal successors, (1884), 3 states have internal predecessors, (1884), 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) [2024-11-16 23:42:04,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:04,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 627 of 713 [2024-11-16 23:42:04,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:30,650 INFO L124 PetriNetUnfolderBase]: 18720/126622 cut-off events. [2024-11-16 23:42:30,650 INFO L125 PetriNetUnfolderBase]: For 3215/3215 co-relation queries the response was YES.