./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2013_variant-1.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_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/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_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2013_variant-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/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_2971d4cf-86ca-46ef-aa01-3b7234aef4be/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 6f1a33edf94ce8e584ad249b95ad5bb2102c6ab4d820eebd8874b39ecbf22785 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:50:03,640 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:50:03,742 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 02:50:03,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:50:03,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:50:03,784 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:50:03,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:50:03,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:50:03,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:50:03,788 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:50:03,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:50:03,789 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:50:03,789 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:50:03,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:50:03,790 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:50:03,790 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:50:03,790 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:50:03,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:50:03,791 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:50:03,791 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:50:03,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:50:03,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:50:03,791 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 02:50:03,791 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:50:03,792 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:50:03,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:50:03,792 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:50:03,792 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:50:03,792 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:50:03,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:50:03,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:50:03,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:50:03,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:50:03,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:50:03,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:50:03,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:50:03,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:50:03,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:50:03,795 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:50:03,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:50:03,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:50:03,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:50:03,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:50:03,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:50:03,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:50:03,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:50:03,796 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_2971d4cf-86ca-46ef-aa01-3b7234aef4be/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 -> 6f1a33edf94ce8e584ad249b95ad5bb2102c6ab4d820eebd8874b39ecbf22785 [2024-11-28 02:50:04,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:50:04,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:50:04,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:50:04,116 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:50:04,116 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:50:04,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-lit/fkp2013_variant-1.i [2024-11-28 02:50:07,294 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/data/8cb9cc430/dd28a0f966184b238e32af2933a3a3a1/FLAGa01f0d802 [2024-11-28 02:50:07,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:50:07,669 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/sv-benchmarks/c/pthread-lit/fkp2013_variant-1.i [2024-11-28 02:50:07,684 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/data/8cb9cc430/dd28a0f966184b238e32af2933a3a3a1/FLAGa01f0d802 [2024-11-28 02:50:07,698 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/data/8cb9cc430/dd28a0f966184b238e32af2933a3a3a1 [2024-11-28 02:50:07,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:50:07,702 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:50:07,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:50:07,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:50:07,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:50:07,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:50:07" (1/1) ... [2024-11-28 02:50:07,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14837426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:07, skipping insertion in model container [2024-11-28 02:50:07,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:50:07" (1/1) ... [2024-11-28 02:50:07,748 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:50:08,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:50:08,260 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:50:08,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:50:08,355 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:50:08,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08 WrapperNode [2024-11-28 02:50:08,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:50:08,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:50:08,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:50:08,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:50:08,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08" (1/1) ... [2024-11-28 02:50:08,386 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08" (1/1) ... [2024-11-28 02:50:08,406 INFO L138 Inliner]: procedures = 171, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-28 02:50:08,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:50:08,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:50:08,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:50:08,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:50:08,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08" (1/1) ... [2024-11-28 02:50:08,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08" (1/1) ... [2024-11-28 02:50:08,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08" (1/1) ... [2024-11-28 02:50:08,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08" (1/1) ... [2024-11-28 02:50:08,423 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08" (1/1) ... [2024-11-28 02:50:08,424 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08" (1/1) ... [2024-11-28 02:50:08,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08" (1/1) ... [2024-11-28 02:50:08,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08" (1/1) ... [2024-11-28 02:50:08,430 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08" (1/1) ... [2024-11-28 02:50:08,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:50:08,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:50:08,437 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:50:08,437 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:50:08,438 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08" (1/1) ... [2024-11-28 02:50:08,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:50:08,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:50:08,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:50:08,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:50:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-28 02:50:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-28 02:50:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-28 02:50:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-28 02:50:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:50:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 02:50:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:50:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:50:08,527 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 02:50:08,671 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:50:08,673 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:50:08,857 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:50:08,857 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:50:08,873 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:50:08,873 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:50:08,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:08 BoogieIcfgContainer [2024-11-28 02:50:08,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:50:08,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:50:08,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:50:08,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:50:08,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:50:07" (1/3) ... [2024-11-28 02:50:08,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea13d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:50:08, skipping insertion in model container [2024-11-28 02:50:08,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:08" (2/3) ... [2024-11-28 02:50:08,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea13d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:50:08, skipping insertion in model container [2024-11-28 02:50:08,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:08" (3/3) ... [2024-11-28 02:50:08,885 INFO L128 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-1.i [2024-11-28 02:50:08,905 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:50:08,906 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fkp2013_variant-1.i that has 3 procedures, 102 locations, 1 initial locations, 1 loop locations, and 8 error locations. [2024-11-28 02:50:08,907 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:50:08,977 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 02:50:09,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 106 transitions, 220 flow [2024-11-28 02:50:09,083 INFO L124 PetriNetUnfolderBase]: 5/119 cut-off events. [2024-11-28 02:50:09,086 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:50:09,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 119 events. 5/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 175 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2024-11-28 02:50:09,093 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 106 transitions, 220 flow [2024-11-28 02:50:09,098 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 105 transitions, 217 flow [2024-11-28 02:50:09,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:50:09,123 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;@17ce6e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:50:09,123 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-28 02:50:09,131 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:50:09,131 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2024-11-28 02:50:09,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:50:09,132 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:50:09,132 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:50:09,133 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 02:50:09,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:50:09,139 INFO L85 PathProgramCache]: Analyzing trace with hash 635331828, now seen corresponding path program 1 times [2024-11-28 02:50:09,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:50:09,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693695401] [2024-11-28 02:50:09,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:50:09,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:50:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:50:09,372 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 02:50:09,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:50:09,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693695401] [2024-11-28 02:50:09,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693695401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:50:09,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:50:09,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:50:09,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238202716] [2024-11-28 02:50:09,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:50:09,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:50:09,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:50:09,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:50:09,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:50:09,460 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 106 [2024-11-28 02:50:09,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 105 transitions, 217 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 02:50:09,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:50:09,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 106 [2024-11-28 02:50:09,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:50:09,581 INFO L124 PetriNetUnfolderBase]: 11/231 cut-off events. [2024-11-28 02:50:09,583 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 02:50:09,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 231 events. 11/231 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 811 event pairs, 11 based on Foata normal form. 18/209 useless extension candidates. Maximal degree in co-relation 218. Up to 31 conditions per place. [2024-11-28 02:50:09,590 INFO L140 encePairwiseOnDemand]: 99/106 looper letters, 9 selfloop transitions, 2 changer transitions 1/98 dead transitions. [2024-11-28 02:50:09,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 98 transitions, 225 flow [2024-11-28 02:50:09,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:50:09,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:50:09,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2024-11-28 02:50:09,610 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.889937106918239 [2024-11-28 02:50:09,613 INFO L175 Difference]: Start difference. First operand has 107 places, 105 transitions, 217 flow. Second operand 3 states and 283 transitions. [2024-11-28 02:50:09,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 98 transitions, 225 flow [2024-11-28 02:50:09,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 98 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:50:09,627 INFO L231 Difference]: Finished difference. Result has 105 places, 97 transitions, 204 flow [2024-11-28 02:50:09,630 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=105, PETRI_TRANSITIONS=97} [2024-11-28 02:50:09,634 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, -2 predicate places. [2024-11-28 02:50:09,636 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 97 transitions, 204 flow [2024-11-28 02:50:09,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 02:50:09,639 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:50:09,639 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:50:09,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:50:09,640 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 02:50:09,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:50:09,641 INFO L85 PathProgramCache]: Analyzing trace with hash 869271049, now seen corresponding path program 1 times [2024-11-28 02:50:09,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:50:09,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291041826] [2024-11-28 02:50:09,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:50:09,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:50:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:50:09,775 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 02:50:09,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:50:09,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291041826] [2024-11-28 02:50:09,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291041826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:50:09,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:50:09,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:50:09,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995594407] [2024-11-28 02:50:09,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:50:09,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:50:09,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:50:09,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:50:09,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:50:09,831 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 106 [2024-11-28 02:50:09,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 97 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 02:50:09,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:50:09,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 106 [2024-11-28 02:50:09,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:50:09,879 INFO L124 PetriNetUnfolderBase]: 5/161 cut-off events. [2024-11-28 02:50:09,879 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 02:50:09,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 161 events. 5/161 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 442 event pairs, 5 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 169. Up to 22 conditions per place. [2024-11-28 02:50:09,881 INFO L140 encePairwiseOnDemand]: 103/106 looper letters, 9 selfloop transitions, 2 changer transitions 0/96 dead transitions. [2024-11-28 02:50:09,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 96 transitions, 224 flow [2024-11-28 02:50:09,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:50:09,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:50:09,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2024-11-28 02:50:09,883 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8773584905660378 [2024-11-28 02:50:09,883 INFO L175 Difference]: Start difference. First operand has 105 places, 97 transitions, 204 flow. Second operand 3 states and 279 transitions. [2024-11-28 02:50:09,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 96 transitions, 224 flow [2024-11-28 02:50:09,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 96 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:50:09,889 INFO L231 Difference]: Finished difference. Result has 103 places, 96 transitions, 202 flow [2024-11-28 02:50:09,890 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=103, PETRI_TRANSITIONS=96} [2024-11-28 02:50:09,891 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, -4 predicate places. [2024-11-28 02:50:09,892 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 96 transitions, 202 flow [2024-11-28 02:50:09,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 02:50:09,893 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:50:09,893 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:50:09,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:50:09,894 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 02:50:09,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:50:09,896 INFO L85 PathProgramCache]: Analyzing trace with hash 557523060, now seen corresponding path program 1 times [2024-11-28 02:50:09,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:50:09,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104481410] [2024-11-28 02:50:09,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:50:09,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:50:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:50:09,975 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 02:50:09,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:50:09,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104481410] [2024-11-28 02:50:09,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104481410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:50:09,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:50:09,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:50:09,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779393516] [2024-11-28 02:50:09,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:50:09,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:50:09,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:50:09,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:50:09,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:50:10,001 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 106 [2024-11-28 02:50:10,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 96 transitions, 202 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 02:50:10,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:50:10,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 106 [2024-11-28 02:50:10,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:50:10,059 INFO L124 PetriNetUnfolderBase]: 10/216 cut-off events. [2024-11-28 02:50:10,060 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 02:50:10,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 216 events. 10/216 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 812 event pairs, 10 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 226. Up to 30 conditions per place. [2024-11-28 02:50:10,062 INFO L140 encePairwiseOnDemand]: 102/106 looper letters, 8 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2024-11-28 02:50:10,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 93 transitions, 214 flow [2024-11-28 02:50:10,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:50:10,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:50:10,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2024-11-28 02:50:10,064 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8773584905660378 [2024-11-28 02:50:10,065 INFO L175 Difference]: Start difference. First operand has 103 places, 96 transitions, 202 flow. Second operand 3 states and 279 transitions. [2024-11-28 02:50:10,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 93 transitions, 214 flow [2024-11-28 02:50:10,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 93 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:50:10,068 INFO L231 Difference]: Finished difference. Result has 100 places, 93 transitions, 194 flow [2024-11-28 02:50:10,068 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=100, PETRI_TRANSITIONS=93} [2024-11-28 02:50:10,072 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, -7 predicate places. [2024-11-28 02:50:10,072 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 93 transitions, 194 flow [2024-11-28 02:50:10,073 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 02:50:10,073 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:50:10,073 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:50:10,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:50:10,073 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 02:50:10,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:50:10,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1675451985, now seen corresponding path program 1 times [2024-11-28 02:50:10,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:50:10,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632520172] [2024-11-28 02:50:10,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:50:10,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:50:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:50:10,191 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 02:50:10,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:50:10,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632520172] [2024-11-28 02:50:10,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632520172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:50:10,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:50:10,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:50:10,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079849674] [2024-11-28 02:50:10,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:50:10,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:50:10,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:50:10,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:50:10,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:50:10,228 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 106 [2024-11-28 02:50:10,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 93 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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 02:50:10,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:50:10,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 106 [2024-11-28 02:50:10,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:50:10,288 INFO L124 PetriNetUnfolderBase]: 7/176 cut-off events. [2024-11-28 02:50:10,288 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 02:50:10,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 176 events. 7/176 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 511 event pairs, 2 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 180. Up to 19 conditions per place. [2024-11-28 02:50:10,291 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 9 selfloop transitions, 4 changer transitions 0/96 dead transitions. [2024-11-28 02:50:10,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 96 transitions, 229 flow [2024-11-28 02:50:10,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:50:10,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:50:10,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2024-11-28 02:50:10,327 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9056603773584906 [2024-11-28 02:50:10,327 INFO L175 Difference]: Start difference. First operand has 100 places, 93 transitions, 194 flow. Second operand 3 states and 288 transitions. [2024-11-28 02:50:10,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 96 transitions, 229 flow [2024-11-28 02:50:10,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 96 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:50:10,330 INFO L231 Difference]: Finished difference. Result has 102 places, 95 transitions, 221 flow [2024-11-28 02:50:10,331 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=102, PETRI_TRANSITIONS=95} [2024-11-28 02:50:10,331 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, -5 predicate places. [2024-11-28 02:50:10,332 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 95 transitions, 221 flow [2024-11-28 02:50:10,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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 02:50:10,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:50:10,332 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:50:10,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:50:10,333 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 02:50:10,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:50:10,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1635746629, now seen corresponding path program 1 times [2024-11-28 02:50:10,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:50:10,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231394119] [2024-11-28 02:50:10,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:50:10,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:50:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:50:10,394 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 02:50:10,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:50:10,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231394119] [2024-11-28 02:50:10,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231394119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:50:10,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:50:10,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:50:10,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751275607] [2024-11-28 02:50:10,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:50:10,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:50:10,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:50:10,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:50:10,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:50:10,423 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 106 [2024-11-28 02:50:10,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 95 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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 02:50:10,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:50:10,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 106 [2024-11-28 02:50:10,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:50:10,466 INFO L124 PetriNetUnfolderBase]: 6/214 cut-off events. [2024-11-28 02:50:10,467 INFO L125 PetriNetUnfolderBase]: For 23/25 co-relation queries the response was YES. [2024-11-28 02:50:10,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 214 events. 6/214 cut-off events. For 23/25 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 739 event pairs, 2 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 250. Up to 23 conditions per place. [2024-11-28 02:50:10,469 INFO L140 encePairwiseOnDemand]: 101/106 looper letters, 11 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2024-11-28 02:50:10,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 98 transitions, 261 flow [2024-11-28 02:50:10,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:50:10,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:50:10,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2024-11-28 02:50:10,470 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9025157232704403 [2024-11-28 02:50:10,471 INFO L175 Difference]: Start difference. First operand has 102 places, 95 transitions, 221 flow. Second operand 3 states and 287 transitions. [2024-11-28 02:50:10,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 98 transitions, 261 flow [2024-11-28 02:50:10,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 98 transitions, 251 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:50:10,474 INFO L231 Difference]: Finished difference. Result has 104 places, 98 transitions, 245 flow [2024-11-28 02:50:10,474 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=245, PETRI_PLACES=104, PETRI_TRANSITIONS=98} [2024-11-28 02:50:10,475 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, -3 predicate places. [2024-11-28 02:50:10,475 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 98 transitions, 245 flow [2024-11-28 02:50:10,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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 02:50:10,476 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:50:10,476 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:50:10,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:50:10,476 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 02:50:10,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:50:10,479 INFO L85 PathProgramCache]: Analyzing trace with hash -939722879, now seen corresponding path program 1 times [2024-11-28 02:50:10,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:50:10,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840464353] [2024-11-28 02:50:10,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:50:10,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:50:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:50:10,526 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:50:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:50:10,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:50:10,591 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:50:10,592 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2024-11-28 02:50:10,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-28 02:50:10,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-28 02:50:10,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-28 02:50:10,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-11-28 02:50:10,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2024-11-28 02:50:10,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2024-11-28 02:50:10,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-11-28 02:50:10,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-28 02:50:10,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 14 remaining) [2024-11-28 02:50:10,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 14 remaining) [2024-11-28 02:50:10,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-28 02:50:10,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-28 02:50:10,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-28 02:50:10,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:50:10,602 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 02:50:10,683 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 02:50:10,683 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:50:10,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:50:10 BasicIcfg [2024-11-28 02:50:10,692 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:50:10,693 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:50:10,693 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:50:10,693 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:50:10,697 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:08" (3/4) ... [2024-11-28 02:50:10,698 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 02:50:10,790 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 5. [2024-11-28 02:50:10,843 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:50:10,844 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:50:10,844 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:50:10,845 INFO L158 Benchmark]: Toolchain (without parser) took 3143.26ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 48.6MB in the end (delta: 43.1MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2024-11-28 02:50:10,846 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:50:10,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 654.52ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 71.7MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:50:10,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.37ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 70.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:50:10,848 INFO L158 Benchmark]: Boogie Preprocessor took 24.83ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 69.1MB in the end (delta: 884.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:50:10,848 INFO L158 Benchmark]: RCFGBuilder took 440.81ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 56.2MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:50:10,848 INFO L158 Benchmark]: TraceAbstraction took 1815.75ms. Allocated memory is still 117.4MB. Free memory was 55.8MB in the beginning and 57.8MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:50:10,850 INFO L158 Benchmark]: Witness Printer took 151.63ms. Allocated memory is still 117.4MB. Free memory was 57.8MB in the beginning and 48.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:50:10,852 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 654.52ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 71.7MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.37ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 70.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.83ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 69.1MB in the end (delta: 884.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 440.81ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 56.2MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1815.75ms. Allocated memory is still 117.4MB. Free memory was 55.8MB in the beginning and 57.8MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 151.63ms. Allocated memory is still 117.4MB. Free memory was 57.8MB in the beginning and 48.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 700]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int x; VAL [x=0] [L698] 0 volatile int n; VAL [n=0, x=0] [L710] 0 pthread_t t1, t2; VAL [\old(argc)=51, \old(argv)={53:50}, argc=51, n=0, x=0] [L711] 0 int i; VAL [\old(argc)=51, \old(argv)={53:50}, argc=51, n=0, x=0] [L712] 0 x = 0 VAL [\old(argc)=51, \old(argv)={53:50}, argc=51, n=0, x=0] [L713] 0 n = __VERIFIER_nondet_int() VAL [\old(argc)=51, \old(argv)={53:50}, argc=51, n=1, x=0] [L714] EXPR 0 n > 0 [L714] CALL 0 assume_abort_if_not(n > 0) [L686] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, n=1, x=0] [L714] RET 0 assume_abort_if_not(n > 0) [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=51, \old(argv)={53:50}, argc=51, n=1, t1=-1, x=0] [L716] 0 i = 0 VAL [\old(argc)=51, \old(argv)={53:50}, argc=51, i=0, n=1, t1=-1, x=0] [L716] 0 i < n VAL [\old(argc)=51, \old(argv)={53:50}, argc=51, i=0, n=1, t1=-1, x=0] [L716] COND TRUE 0 i < n VAL [\old(argc)=51, \old(argv)={53:50}, argc=51, i=0, n=1, t1=-1, x=0] [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(arg)={0:0}, \old(argc)=51, \old(argv)={53:50}, argc=51, i=0, n=1, t1=-1, t2=0, x=0] [L704] 2 int t; VAL [\old(arg)={0:0}, arg={0:0}, n=1, x=0] [L700] 1 x <= n VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, n=1, x=0] [L705] 2 t = x VAL [\old(arg)={0:0}, arg={0:0}, n=1, t=0, x=0] [L706] 2 x = t + 1 VAL [\old(arg)={0:0}, arg={0:0}, n=1, t=0, x=1] [L700] 1 x <= n VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1] Now there is a data race on ~x~0 between C: x = t + 1 [706] and C: x <= n [700] - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 140 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 106 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 20 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=245occurred in iteration=5, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 238 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 02:50:10,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2971d4cf-86ca-46ef-aa01-3b7234aef4be/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)