./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/30_Function_Pointer3_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/30_Function_Pointer3_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8b500e58ad9de43c2267c6cdc33609b02abfe24fc1cf283e17f14a4a70ea61c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:23:42,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:23:42,784 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 04:23:42,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:23:42,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:23:42,830 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:23:42,831 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:23:42,831 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:23:42,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:23:42,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:23:42,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:23:42,833 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:23:42,833 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:23:42,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:23:42,833 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:23:42,833 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:23:42,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:23:42,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:23:42,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:23:42,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:23:42,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:23:42,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:23:42,834 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 04:23:42,834 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:23:42,834 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:23:42,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:23:42,834 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:23:42,835 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:23:42,835 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:23:42,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:23:42,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:23:42,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:23:42,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:23:42,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:23:42,838 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:23:42,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:23:42,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:23:42,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:23:42,839 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:23:42,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:23:42,839 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:23:42,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:23:42,839 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:23:42,840 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:23:42,840 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:23:42,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:23:42,841 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_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8b500e58ad9de43c2267c6cdc33609b02abfe24fc1cf283e17f14a4a70ea61c [2024-11-28 04:23:43,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:23:43,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:23:43,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:23:43,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:23:43,302 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:23:43,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-ext/30_Function_Pointer3_vs.i [2024-11-28 04:23:46,823 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB/data/8a9b8a79c/b914ac11d8224ca88688d2be37769c91/FLAG8d5bf452d [2024-11-28 04:23:47,302 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:23:47,303 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/sv-benchmarks/c/pthread-ext/30_Function_Pointer3_vs.i [2024-11-28 04:23:47,322 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB/data/8a9b8a79c/b914ac11d8224ca88688d2be37769c91/FLAG8d5bf452d [2024-11-28 04:23:47,345 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB/data/8a9b8a79c/b914ac11d8224ca88688d2be37769c91 [2024-11-28 04:23:47,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:23:47,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:23:47,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:23:47,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:23:47,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:23:47,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:47,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4507c7e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47, skipping insertion in model container [2024-11-28 04:23:47,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:47,413 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:23:47,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:23:47,795 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:23:47,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:23:47,898 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:23:47,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47 WrapperNode [2024-11-28 04:23:47,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:23:47,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:23:47,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:23:47,903 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:23:47,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:47,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:47,975 INFO L138 Inliner]: procedures = 173, calls = 16, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 107 [2024-11-28 04:23:47,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:23:47,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:23:47,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:23:47,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:23:47,987 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:47,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:47,990 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:47,994 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:48,003 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:48,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:48,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:48,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:48,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:48,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:23:48,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:23:48,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:23:48,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:23:48,033 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47" (1/1) ... [2024-11-28 04:23:48,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:23:48,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:23:48,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:23:48,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe26cba2-f388-4482-a02d-6cc5d9495702/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:23:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-28 04:23:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-28 04:23:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-28 04:23:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-28 04:23:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:23:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 04:23:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:23:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:23:48,125 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:23:48,326 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:23:48,329 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:23:48,686 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:23:48,686 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:23:48,764 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:23:48,765 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 04:23:48,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:23:48 BoogieIcfgContainer [2024-11-28 04:23:48,765 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:23:48,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:23:48,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:23:48,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:23:48,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:23:47" (1/3) ... [2024-11-28 04:23:48,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134b7505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:23:48, skipping insertion in model container [2024-11-28 04:23:48,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:23:47" (2/3) ... [2024-11-28 04:23:48,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134b7505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:23:48, skipping insertion in model container [2024-11-28 04:23:48,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:23:48" (3/3) ... [2024-11-28 04:23:48,785 INFO L128 eAbstractionObserver]: Analyzing ICFG 30_Function_Pointer3_vs.i [2024-11-28 04:23:48,805 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:23:48,807 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 30_Function_Pointer3_vs.i that has 3 procedures, 101 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2024-11-28 04:23:48,808 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:23:48,956 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:23:49,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 108 transitions, 224 flow [2024-11-28 04:23:49,083 INFO L124 PetriNetUnfolderBase]: 8/115 cut-off events. [2024-11-28 04:23:49,086 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:23:49,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 115 events. 8/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 145 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 102. Up to 4 conditions per place. [2024-11-28 04:23:49,093 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 108 transitions, 224 flow [2024-11-28 04:23:49,099 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 107 transitions, 221 flow [2024-11-28 04:23:49,112 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:23:49,129 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;@3f508372, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:23:49,130 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-28 04:23:49,140 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:23:49,141 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2024-11-28 04:23:49,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:23:49,141 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:23:49,142 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:49,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 04:23:49,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:49,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1567695469, now seen corresponding path program 1 times [2024-11-28 04:23:49,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:49,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581684836] [2024-11-28 04:23:49,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:49,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:49,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:23:49,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:23:49,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581684836] [2024-11-28 04:23:49,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581684836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:23:49,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:23:49,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:23:49,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391488339] [2024-11-28 04:23:49,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:23:49,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:23:49,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:23:49,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:23:49,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:49,510 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 108 [2024-11-28 04:23:49,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 107 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2024-11-28 04:23:49,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:23:49,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 108 [2024-11-28 04:23:49,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:23:49,668 INFO L124 PetriNetUnfolderBase]: 20/207 cut-off events. [2024-11-28 04:23:49,669 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 04:23:49,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 207 events. 20/207 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 531 event pairs, 4 based on Foata normal form. 34/222 useless extension candidates. Maximal degree in co-relation 234. Up to 25 conditions per place. [2024-11-28 04:23:49,682 INFO L140 encePairwiseOnDemand]: 94/108 looper letters, 11 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2024-11-28 04:23:49,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 96 transitions, 230 flow [2024-11-28 04:23:49,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:23:49,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:23:49,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2024-11-28 04:23:49,706 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9320987654320988 [2024-11-28 04:23:49,708 INFO L175 Difference]: Start difference. First operand has 106 places, 107 transitions, 221 flow. Second operand 3 states and 302 transitions. [2024-11-28 04:23:49,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 96 transitions, 230 flow [2024-11-28 04:23:49,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 96 transitions, 229 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:23:49,725 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 212 flow [2024-11-28 04:23:49,729 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2024-11-28 04:23:49,735 INFO L279 CegarLoopForPetriNet]: 106 programPoint places, -10 predicate places. [2024-11-28 04:23:49,735 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 212 flow [2024-11-28 04:23:49,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2024-11-28 04:23:49,739 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:23:49,739 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:49,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:23:49,740 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 04:23:49,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:49,742 INFO L85 PathProgramCache]: Analyzing trace with hash 2021440818, now seen corresponding path program 1 times [2024-11-28 04:23:49,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:49,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684508766] [2024-11-28 04:23:49,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:49,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:23:49,792 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:23:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:23:49,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:23:49,860 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:23:49,862 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-11-28 04:23:49,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-28 04:23:49,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-28 04:23:49,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-28 04:23:49,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-11-28 04:23:49,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2024-11-28 04:23:49,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2024-11-28 04:23:49,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 14 remaining) [2024-11-28 04:23:49,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-28 04:23:49,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-11-28 04:23:49,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-11-28 04:23:49,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-28 04:23:49,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-28 04:23:49,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-28 04:23:49,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:23:49,871 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 04:23:49,874 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:23:49,876 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 04:23:49,976 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:23:49,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 188 transitions, 396 flow [2024-11-28 04:23:50,055 INFO L124 PetriNetUnfolderBase]: 11/188 cut-off events. [2024-11-28 04:23:50,055 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 04:23:50,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 188 events. 11/188 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 375 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 195. Up to 6 conditions per place. [2024-11-28 04:23:50,059 INFO L82 GeneralOperation]: Start removeDead. Operand has 185 places, 188 transitions, 396 flow [2024-11-28 04:23:50,062 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 170 transitions, 353 flow [2024-11-28 04:23:50,064 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:23:50,064 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;@3f508372, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:23:50,064 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-28 04:23:50,070 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:23:50,070 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2024-11-28 04:23:50,070 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:23:50,071 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:23:50,071 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:50,071 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-28 04:23:50,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:50,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1432047548, now seen corresponding path program 1 times [2024-11-28 04:23:50,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:50,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609331945] [2024-11-28 04:23:50,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:50,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:50,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:23:50,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:23:50,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609331945] [2024-11-28 04:23:50,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609331945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:23:50,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:23:50,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:23:50,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224578642] [2024-11-28 04:23:50,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:23:50,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:23:50,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:23:50,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:23:50,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:50,245 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 188 [2024-11-28 04:23:50,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 170 transitions, 353 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2024-11-28 04:23:50,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:23:50,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 188 [2024-11-28 04:23:50,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:23:50,691 INFO L124 PetriNetUnfolderBase]: 184/1312 cut-off events. [2024-11-28 04:23:50,692 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2024-11-28 04:23:50,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1638 conditions, 1312 events. 184/1312 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 8737 event pairs, 59 based on Foata normal form. 171/1375 useless extension candidates. Maximal degree in co-relation 1615. Up to 137 conditions per place. [2024-11-28 04:23:50,714 INFO L140 encePairwiseOnDemand]: 169/188 looper letters, 18 selfloop transitions, 4 changer transitions 0/159 dead transitions. [2024-11-28 04:23:50,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 159 transitions, 383 flow [2024-11-28 04:23:50,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:23:50,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:23:50,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions. [2024-11-28 04:23:50,722 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.898936170212766 [2024-11-28 04:23:50,726 INFO L175 Difference]: Start difference. First operand has 169 places, 170 transitions, 353 flow. Second operand 3 states and 507 transitions. [2024-11-28 04:23:50,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 159 transitions, 383 flow [2024-11-28 04:23:50,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 159 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:23:50,732 INFO L231 Difference]: Finished difference. Result has 155 places, 153 transitions, 344 flow [2024-11-28 04:23:50,732 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=155, PETRI_TRANSITIONS=153} [2024-11-28 04:23:50,734 INFO L279 CegarLoopForPetriNet]: 169 programPoint places, -14 predicate places. [2024-11-28 04:23:50,735 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 153 transitions, 344 flow [2024-11-28 04:23:50,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2024-11-28 04:23:50,737 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:23:50,738 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:50,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:23:50,738 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-28 04:23:50,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:50,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1780815340, now seen corresponding path program 1 times [2024-11-28 04:23:50,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:50,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011965687] [2024-11-28 04:23:50,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:50,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:23:50,785 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:23:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:23:50,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:23:50,828 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:23:50,829 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-28 04:23:50,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-28 04:23:50,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-28 04:23:50,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-28 04:23:50,830 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-28 04:23:50,830 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-28 04:23:50,830 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-28 04:23:50,830 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 20 remaining) [2024-11-28 04:23:50,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-28 04:23:50,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-28 04:23:50,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-28 04:23:50,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-28 04:23:50,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-28 04:23:50,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-28 04:23:50,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-28 04:23:50,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-28 04:23:50,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-28 04:23:50,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-28 04:23:50,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-28 04:23:50,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-28 04:23:50,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:23:50,834 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 04:23:50,835 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:23:50,835 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 04:23:50,961 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:23:50,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 268 transitions, 572 flow [2024-11-28 04:23:51,070 INFO L124 PetriNetUnfolderBase]: 14/261 cut-off events. [2024-11-28 04:23:51,072 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-28 04:23:51,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 261 events. 14/261 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 738 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 272. Up to 8 conditions per place. [2024-11-28 04:23:51,077 INFO L82 GeneralOperation]: Start removeDead. Operand has 263 places, 268 transitions, 572 flow [2024-11-28 04:23:51,082 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 233 transitions, 487 flow [2024-11-28 04:23:51,085 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:23:51,086 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;@3f508372, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:23:51,087 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-28 04:23:51,094 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:23:51,094 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2024-11-28 04:23:51,095 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:23:51,095 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:23:51,097 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:51,098 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:23:51,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:51,099 INFO L85 PathProgramCache]: Analyzing trace with hash -955509477, now seen corresponding path program 1 times [2024-11-28 04:23:51,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:51,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557764870] [2024-11-28 04:23:51,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:51,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:51,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:23:51,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:23:51,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557764870] [2024-11-28 04:23:51,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557764870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:23:51,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:23:51,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:23:51,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056416206] [2024-11-28 04:23:51,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:23:51,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:23:51,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:23:51,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:23:51,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:51,257 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 268 [2024-11-28 04:23:51,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 233 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 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) [2024-11-28 04:23:51,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:23:51,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 268 [2024-11-28 04:23:51,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:23:53,059 INFO L124 PetriNetUnfolderBase]: 1166/6098 cut-off events. [2024-11-28 04:23:53,060 INFO L125 PetriNetUnfolderBase]: For 703/703 co-relation queries the response was YES. [2024-11-28 04:23:53,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7997 conditions, 6098 events. 1166/6098 cut-off events. For 703/703 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 59766 event pairs, 476 based on Foata normal form. 758/6340 useless extension candidates. Maximal degree in co-relation 7973. Up to 831 conditions per place. [2024-11-28 04:23:53,167 INFO L140 encePairwiseOnDemand]: 244/268 looper letters, 25 selfloop transitions, 5 changer transitions 0/222 dead transitions. [2024-11-28 04:23:53,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 222 transitions, 540 flow [2024-11-28 04:23:53,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:23:53,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:23:53,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 712 transitions. [2024-11-28 04:23:53,172 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8855721393034826 [2024-11-28 04:23:53,172 INFO L175 Difference]: Start difference. First operand has 232 places, 233 transitions, 487 flow. Second operand 3 states and 712 transitions. [2024-11-28 04:23:53,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 222 transitions, 540 flow [2024-11-28 04:23:53,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 222 transitions, 535 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-28 04:23:53,180 INFO L231 Difference]: Finished difference. Result has 214 places, 213 transitions, 476 flow [2024-11-28 04:23:53,182 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=476, PETRI_PLACES=214, PETRI_TRANSITIONS=213} [2024-11-28 04:23:53,184 INFO L279 CegarLoopForPetriNet]: 232 programPoint places, -18 predicate places. [2024-11-28 04:23:53,187 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 213 transitions, 476 flow [2024-11-28 04:23:53,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 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) [2024-11-28 04:23:53,188 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:23:53,188 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:53,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:23:53,188 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 04:23:53,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:53,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1872718483, now seen corresponding path program 1 times [2024-11-28 04:23:53,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:53,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462653769] [2024-11-28 04:23:53,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:53,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:23:53,233 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:23:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:23:53,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:23:53,269 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:23:53,269 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-28 04:23:53,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-28 04:23:53,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-28 04:23:53,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-28 04:23:53,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-28 04:23:53,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-28 04:23:53,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-11-28 04:23:53,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 26 remaining) [2024-11-28 04:23:53,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-28 04:23:53,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-28 04:23:53,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2024-11-28 04:23:53,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-28 04:23:53,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-28 04:23:53,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-28 04:23:53,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-28 04:23:53,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-28 04:23:53,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-28 04:23:53,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-28 04:23:53,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-28 04:23:53,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-28 04:23:53,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-28 04:23:53,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-28 04:23:53,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-28 04:23:53,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-28 04:23:53,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-28 04:23:53,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-28 04:23:53,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:23:53,275 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 04:23:53,276 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:23:53,276 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-28 04:23:53,413 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:23:53,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 341 places, 348 transitions, 752 flow [2024-11-28 04:23:53,504 INFO L124 PetriNetUnfolderBase]: 17/334 cut-off events. [2024-11-28 04:23:53,505 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-28 04:23:53,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 334 events. 17/334 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1132 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 350. Up to 10 conditions per place. [2024-11-28 04:23:53,510 INFO L82 GeneralOperation]: Start removeDead. Operand has 341 places, 348 transitions, 752 flow [2024-11-28 04:23:53,515 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 295 places, 296 transitions, 623 flow [2024-11-28 04:23:53,518 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:23:53,519 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;@3f508372, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:23:53,520 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-28 04:23:53,523 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:23:53,524 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2024-11-28 04:23:53,524 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:23:53,524 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:23:53,524 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:53,524 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-28 04:23:53,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:53,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1300008310, now seen corresponding path program 1 times [2024-11-28 04:23:53,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:53,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173177300] [2024-11-28 04:23:53,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:53,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:23:53,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:23:53,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173177300] [2024-11-28 04:23:53,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173177300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:23:53,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:23:53,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:23:53,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89574255] [2024-11-28 04:23:53,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:23:53,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:23:53,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:23:53,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:23:53,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:53,660 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 348 [2024-11-28 04:23:53,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 296 transitions, 623 flow. Second operand has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 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) [2024-11-28 04:23:53,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:23:53,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 348 [2024-11-28 04:23:53,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:24:00,265 INFO L124 PetriNetUnfolderBase]: 6352/26020 cut-off events. [2024-11-28 04:24:00,265 INFO L125 PetriNetUnfolderBase]: For 5308/5308 co-relation queries the response was YES. [2024-11-28 04:24:00,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35984 conditions, 26020 events. 6352/26020 cut-off events. For 5308/5308 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 317956 event pairs, 2991 based on Foata normal form. 3181/26968 useless extension candidates. Maximal degree in co-relation 35959. Up to 4695 conditions per place. [2024-11-28 04:24:00,765 INFO L140 encePairwiseOnDemand]: 319/348 looper letters, 32 selfloop transitions, 6 changer transitions 0/285 dead transitions. [2024-11-28 04:24:00,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 285 transitions, 701 flow [2024-11-28 04:24:00,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:24:00,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:24:00,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 917 transitions. [2024-11-28 04:24:00,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8783524904214559 [2024-11-28 04:24:00,770 INFO L175 Difference]: Start difference. First operand has 295 places, 296 transitions, 623 flow. Second operand 3 states and 917 transitions. [2024-11-28 04:24:00,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 285 transitions, 701 flow [2024-11-28 04:24:00,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 285 transitions, 688 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-28 04:24:00,787 INFO L231 Difference]: Finished difference. Result has 273 places, 273 transitions, 608 flow [2024-11-28 04:24:00,788 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=608, PETRI_PLACES=273, PETRI_TRANSITIONS=273} [2024-11-28 04:24:00,789 INFO L279 CegarLoopForPetriNet]: 295 programPoint places, -22 predicate places. [2024-11-28 04:24:00,789 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 273 transitions, 608 flow [2024-11-28 04:24:00,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 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) [2024-11-28 04:24:00,790 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:24:00,790 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:00,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:24:00,791 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-28 04:24:00,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:00,792 INFO L85 PathProgramCache]: Analyzing trace with hash 70202599, now seen corresponding path program 1 times [2024-11-28 04:24:00,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:00,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429350400] [2024-11-28 04:24:00,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:00,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:24:00,818 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:24:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:24:00,859 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:24:00,859 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:24:00,859 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2024-11-28 04:24:00,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2024-11-28 04:24:00,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2024-11-28 04:24:00,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2024-11-28 04:24:00,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2024-11-28 04:24:00,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2024-11-28 04:24:00,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 32 remaining) [2024-11-28 04:24:00,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 32 remaining) [2024-11-28 04:24:00,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2024-11-28 04:24:00,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2024-11-28 04:24:00,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2024-11-28 04:24:00,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2024-11-28 04:24:00,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2024-11-28 04:24:00,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2024-11-28 04:24:00,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2024-11-28 04:24:00,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2024-11-28 04:24:00,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2024-11-28 04:24:00,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (14 of 32 remaining) [2024-11-28 04:24:00,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (13 of 32 remaining) [2024-11-28 04:24:00,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2024-11-28 04:24:00,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2024-11-28 04:24:00,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2024-11-28 04:24:00,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2024-11-28 04:24:00,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2024-11-28 04:24:00,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2024-11-28 04:24:00,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2024-11-28 04:24:00,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2024-11-28 04:24:00,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2024-11-28 04:24:00,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2024-11-28 04:24:00,865 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2024-11-28 04:24:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2024-11-28 04:24:00,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2024-11-28 04:24:00,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:24:00,866 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 04:24:00,867 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:24:00,867 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-28 04:24:01,007 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:24:01,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 419 places, 428 transitions, 936 flow [2024-11-28 04:24:01,153 INFO L124 PetriNetUnfolderBase]: 20/407 cut-off events. [2024-11-28 04:24:01,153 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-28 04:24:01,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 407 events. 20/407 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1540 event pairs, 0 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 429. Up to 12 conditions per place. [2024-11-28 04:24:01,157 INFO L82 GeneralOperation]: Start removeDead. Operand has 419 places, 428 transitions, 936 flow [2024-11-28 04:24:01,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 358 places, 359 transitions, 761 flow [2024-11-28 04:24:01,165 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:24:01,166 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;@3f508372, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:24:01,166 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-28 04:24:01,169 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:24:01,171 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2024-11-28 04:24:01,171 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:24:01,172 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:24:01,172 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:01,172 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-28 04:24:01,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:01,173 INFO L85 PathProgramCache]: Analyzing trace with hash 398487497, now seen corresponding path program 1 times [2024-11-28 04:24:01,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:01,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511035893] [2024-11-28 04:24:01,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:01,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:01,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:24:01,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:01,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511035893] [2024-11-28 04:24:01,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511035893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:01,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:01,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:24:01,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925169217] [2024-11-28 04:24:01,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:01,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:24:01,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:01,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:24:01,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:01,305 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 428 [2024-11-28 04:24:01,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 359 transitions, 761 flow. Second operand has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 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) [2024-11-28 04:24:01,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:24:01,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 428 [2024-11-28 04:24:01,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:24:29,108 INFO L124 PetriNetUnfolderBase]: 31994/109070 cut-off events. [2024-11-28 04:24:29,108 INFO L125 PetriNetUnfolderBase]: For 34152/34152 co-relation queries the response was YES. [2024-11-28 04:24:30,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158059 conditions, 109070 events. 31994/109070 cut-off events. For 34152/34152 co-relation queries the response was YES. Maximal size of possible extension queue 2092. Compared 1555268 event pairs, 16532 based on Foata normal form. 13020/113005 useless extension candidates. Maximal degree in co-relation 158033. Up to 24103 conditions per place. [2024-11-28 04:24:31,386 INFO L140 encePairwiseOnDemand]: 394/428 looper letters, 39 selfloop transitions, 7 changer transitions 0/348 dead transitions. [2024-11-28 04:24:31,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 348 transitions, 866 flow [2024-11-28 04:24:31,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:24:31,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:24:31,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1122 transitions. [2024-11-28 04:24:31,391 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8738317757009346 [2024-11-28 04:24:31,391 INFO L175 Difference]: Start difference. First operand has 358 places, 359 transitions, 761 flow. Second operand 3 states and 1122 transitions. [2024-11-28 04:24:31,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 348 transitions, 866 flow [2024-11-28 04:24:31,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 348 transitions, 841 flow, removed 12 selfloop flow, removed 1 redundant places. [2024-11-28 04:24:31,442 INFO L231 Difference]: Finished difference. Result has 332 places, 333 transitions, 740 flow [2024-11-28 04:24:31,443 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=740, PETRI_PLACES=332, PETRI_TRANSITIONS=333} [2024-11-28 04:24:31,444 INFO L279 CegarLoopForPetriNet]: 358 programPoint places, -26 predicate places. [2024-11-28 04:24:31,445 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 333 transitions, 740 flow [2024-11-28 04:24:31,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 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) [2024-11-28 04:24:31,447 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:24:31,447 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:31,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:24:31,447 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-28 04:24:31,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:31,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2048065880, now seen corresponding path program 1 times [2024-11-28 04:24:31,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:31,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441629369] [2024-11-28 04:24:31,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:31,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:24:31,488 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:24:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:24:31,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:24:31,515 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:24:31,515 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-28 04:24:31,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-28 04:24:31,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-28 04:24:31,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-28 04:24:31,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-28 04:24:31,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-28 04:24:31,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2024-11-28 04:24:31,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 38 remaining) [2024-11-28 04:24:31,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-28 04:24:31,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-28 04:24:31,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-28 04:24:31,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-28 04:24:31,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-28 04:24:31,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-28 04:24:31,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-28 04:24:31,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-28 04:24:31,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-28 04:24:31,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-11-28 04:24:31,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-28 04:24:31,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-28 04:24:31,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-28 04:24:31,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-28 04:24:31,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-28 04:24:31,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-28 04:24:31,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-28 04:24:31,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-28 04:24:31,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-28 04:24:31,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-28 04:24:31,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-28 04:24:31,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-28 04:24:31,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-28 04:24:31,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2024-11-28 04:24:31,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-28 04:24:31,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-28 04:24:31,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-28 04:24:31,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-28 04:24:31,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-28 04:24:31,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-28 04:24:31,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:24:31,521 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 04:24:31,522 WARN L246 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:24:31,522 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-11-28 04:24:31,658 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:24:31,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 497 places, 508 transitions, 1124 flow [2024-11-28 04:24:32,072 INFO L124 PetriNetUnfolderBase]: 23/480 cut-off events. [2024-11-28 04:24:32,072 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-28 04:24:32,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 480 events. 23/480 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1971 event pairs, 0 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 509. Up to 14 conditions per place. [2024-11-28 04:24:32,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 497 places, 508 transitions, 1124 flow [2024-11-28 04:24:32,081 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 421 places, 422 transitions, 901 flow [2024-11-28 04:24:32,082 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:24:32,083 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;@3f508372, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:24:32,083 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-28 04:24:32,085 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:24:32,085 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2024-11-28 04:24:32,085 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:24:32,085 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:24:32,086 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:32,086 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-28 04:24:32,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:32,086 INFO L85 PathProgramCache]: Analyzing trace with hash -154957576, now seen corresponding path program 1 times [2024-11-28 04:24:32,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:32,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229249889] [2024-11-28 04:24:32,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:32,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:32,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:24:32,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:32,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229249889] [2024-11-28 04:24:32,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229249889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:32,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:32,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:24:32,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889827589] [2024-11-28 04:24:32,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:32,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:24:32,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:32,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:24:32,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:32,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 508 [2024-11-28 04:24:32,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 422 transitions, 901 flow. Second operand has 3 states, 3 states have (on average 405.0) internal successors, (1215), 3 states have internal predecessors, (1215), 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) [2024-11-28 04:24:32,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:24:32,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 508 [2024-11-28 04:24:32,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand