./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd --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 ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:20:35,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:20:35,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 13:20:35,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:20:35,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:20:35,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:20:35,446 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:20:35,446 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:20:35,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:20:35,447 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:20:35,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:20:35,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:20:35,447 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:20:35,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:20:35,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:20:35,448 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:20:35,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:20:35,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:20:35,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:20:35,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:20:35,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:20:35,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:20:35,449 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 13:20:35,449 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:20:35,449 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:20:35,449 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:20:35,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:20:35,449 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:20:35,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:20:35,449 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:20:35,449 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:20:35,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:20:35,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:20:35,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:20:35,450 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:20:35,450 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:20:35,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:20:35,450 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:20:35,450 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:20:35,450 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:20:35,451 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:20:35,451 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_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd 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 -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2024-11-13 13:20:35,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:20:35,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:20:35,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:20:35,774 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:20:35,775 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:20:35,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread/singleton.i Unable to find full path for "g++" [2024-11-13 13:20:37,617 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:20:37,960 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:20:37,961 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/sv-benchmarks/c/pthread/singleton.i [2024-11-13 13:20:37,980 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/data/9ff770cc9/43308d09e6294f65afc9d63e1b860a2f/FLAG2d8ea4ee7 [2024-11-13 13:20:37,994 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/data/9ff770cc9/43308d09e6294f65afc9d63e1b860a2f [2024-11-13 13:20:37,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:20:37,998 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:20:37,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:20:37,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:20:38,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:20:38,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:20:37" (1/1) ... [2024-11-13 13:20:38,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1fd05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38, skipping insertion in model container [2024-11-13 13:20:38,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:20:37" (1/1) ... [2024-11-13 13:20:38,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:20:38,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:20:38,675 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:20:38,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:20:38,817 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:20:38,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38 WrapperNode [2024-11-13 13:20:38,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:20:38,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:20:38,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:20:38,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:20:38,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38" (1/1) ... [2024-11-13 13:20:38,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38" (1/1) ... [2024-11-13 13:20:38,857 INFO L138 Inliner]: procedures = 323, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 34 [2024-11-13 13:20:38,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:20:38,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:20:38,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:20:38,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:20:38,865 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38" (1/1) ... [2024-11-13 13:20:38,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38" (1/1) ... [2024-11-13 13:20:38,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38" (1/1) ... [2024-11-13 13:20:38,869 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38" (1/1) ... [2024-11-13 13:20:38,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38" (1/1) ... [2024-11-13 13:20:38,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38" (1/1) ... [2024-11-13 13:20:38,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38" (1/1) ... [2024-11-13 13:20:38,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38" (1/1) ... [2024-11-13 13:20:38,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:20:38,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:20:38,883 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:20:38,883 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:20:38,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38" (1/1) ... [2024-11-13 13:20:38,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:20:38,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:38,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:38,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:20:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 13:20:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 13:20:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 13:20:38,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-11-13 13:20:38,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-11-13 13:20:38,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 13:20:38,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 13:20:38,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-13 13:20:38,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-13 13:20:38,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-13 13:20:38,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-13 13:20:38,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 13:20:38,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 13:20:38,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:20:38,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 13:20:38,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:20:38,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:20:38,956 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 13:20:39,125 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:20:39,127 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:20:39,317 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 13:20:39,317 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:20:39,384 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:20:39,385 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:20:39,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:20:39 BoogieIcfgContainer [2024-11-13 13:20:39,385 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:20:39,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:20:39,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:20:39,392 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:20:39,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:20:37" (1/3) ... [2024-11-13 13:20:39,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f62a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:20:39, skipping insertion in model container [2024-11-13 13:20:39,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:38" (2/3) ... [2024-11-13 13:20:39,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f62a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:20:39, skipping insertion in model container [2024-11-13 13:20:39,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:20:39" (3/3) ... [2024-11-13 13:20:39,396 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2024-11-13 13:20:39,428 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:20:39,429 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG singleton.i that has 5 procedures, 111 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2024-11-13 13:20:39,429 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 13:20:39,560 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-11-13 13:20:39,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 178 places, 169 transitions, 435 flow [2024-11-13 13:20:39,682 INFO L124 PetriNetUnfolderBase]: 7/125 cut-off events. [2024-11-13 13:20:39,688 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 13:20:39,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 125 events. 7/125 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 105. Up to 3 conditions per place. [2024-11-13 13:20:39,694 INFO L82 GeneralOperation]: Start removeDead. Operand has 178 places, 169 transitions, 435 flow [2024-11-13 13:20:39,698 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 106 transitions, 263 flow [2024-11-13 13:20:39,711 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:20:39,728 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;@75b83ae2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:20:39,728 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-13 13:20:39,751 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:20:39,751 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2024-11-13 13:20:39,751 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:20:39,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:20:39,752 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:39,752 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-13 13:20:39,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:39,760 INFO L85 PathProgramCache]: Analyzing trace with hash -924119383, now seen corresponding path program 1 times [2024-11-13 13:20:39,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:39,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587468045] [2024-11-13 13:20:39,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:39,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:40,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:40,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587468045] [2024-11-13 13:20:40,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587468045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:40,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:40,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:20:40,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545129457] [2024-11-13 13:20:40,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:40,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:40,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:40,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:40,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:40,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 171 [2024-11-13 13:20:40,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 106 transitions, 263 flow. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2024-11-13 13:20:40,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:20:40,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 171 [2024-11-13 13:20:40,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:20:40,275 INFO L124 PetriNetUnfolderBase]: 67/252 cut-off events. [2024-11-13 13:20:40,278 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-11-13 13:20:40,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 252 events. 67/252 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 737 event pairs, 51 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 413. Up to 120 conditions per place. [2024-11-13 13:20:40,284 INFO L140 encePairwiseOnDemand]: 160/171 looper letters, 24 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2024-11-13 13:20:40,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 97 transitions, 297 flow [2024-11-13 13:20:40,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:40,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:20:40,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2024-11-13 13:20:40,305 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7641325536062378 [2024-11-13 13:20:40,308 INFO L175 Difference]: Start difference. First operand has 120 places, 106 transitions, 263 flow. Second operand 3 states and 392 transitions. [2024-11-13 13:20:40,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 97 transitions, 297 flow [2024-11-13 13:20:40,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 97 transitions, 263 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-13 13:20:40,325 INFO L231 Difference]: Finished difference. Result has 101 places, 97 transitions, 215 flow [2024-11-13 13:20:40,329 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=101, PETRI_TRANSITIONS=97} [2024-11-13 13:20:40,335 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, -19 predicate places. [2024-11-13 13:20:40,336 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 97 transitions, 215 flow [2024-11-13 13:20:40,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2024-11-13 13:20:40,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:20:40,336 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-13 13:20:40,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:20:40,337 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-13 13:20:40,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:40,337 INFO L85 PathProgramCache]: Analyzing trace with hash 518272125, now seen corresponding path program 1 times [2024-11-13 13:20:40,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:40,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280271930] [2024-11-13 13:20:40,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:40,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:40,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:40,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:40,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280271930] [2024-11-13 13:20:40,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280271930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:40,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:40,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:20:40,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647960838] [2024-11-13 13:20:40,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:40,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:40,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:40,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:40,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:40,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 171 [2024-11-13 13:20:40,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2024-11-13 13:20:40,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:20:40,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 171 [2024-11-13 13:20:40,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:20:40,837 INFO L124 PetriNetUnfolderBase]: 67/272 cut-off events. [2024-11-13 13:20:40,838 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-13 13:20:40,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 272 events. 67/272 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 836 event pairs, 29 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 383. Up to 110 conditions per place. [2024-11-13 13:20:40,841 INFO L140 encePairwiseOnDemand]: 166/171 looper letters, 27 selfloop transitions, 4 changer transitions 0/103 dead transitions. [2024-11-13 13:20:40,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 103 transitions, 292 flow [2024-11-13 13:20:40,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:40,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:20:40,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2024-11-13 13:20:40,848 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7699805068226121 [2024-11-13 13:20:40,848 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 215 flow. Second operand 3 states and 395 transitions. [2024-11-13 13:20:40,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 103 transitions, 292 flow [2024-11-13 13:20:40,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 103 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:20:40,855 INFO L231 Difference]: Finished difference. Result has 101 places, 100 transitions, 237 flow [2024-11-13 13:20:40,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=101, PETRI_TRANSITIONS=100} [2024-11-13 13:20:40,857 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, -19 predicate places. [2024-11-13 13:20:40,857 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 100 transitions, 237 flow [2024-11-13 13:20:40,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2024-11-13 13:20:40,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:20:40,857 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-13 13:20:40,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:20:40,858 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-13 13:20:40,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:40,858 INFO L85 PathProgramCache]: Analyzing trace with hash -437690641, now seen corresponding path program 1 times [2024-11-13 13:20:40,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:40,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550962492] [2024-11-13 13:20:40,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:40,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:41,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:41,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:41,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550962492] [2024-11-13 13:20:41,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550962492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:41,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:41,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:20:41,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466969312] [2024-11-13 13:20:41,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:41,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:41,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:41,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:41,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:41,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 171 [2024-11-13 13:20:41,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2024-11-13 13:20:41,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:20:41,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 171 [2024-11-13 13:20:41,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:20:41,290 INFO L124 PetriNetUnfolderBase]: 67/256 cut-off events. [2024-11-13 13:20:41,290 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-11-13 13:20:41,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 256 events. 67/256 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 750 event pairs, 35 based on Foata normal form. 1/231 useless extension candidates. Maximal degree in co-relation 442. Up to 119 conditions per place. [2024-11-13 13:20:41,291 INFO L140 encePairwiseOnDemand]: 169/171 looper letters, 0 selfloop transitions, 0 changer transitions 99/99 dead transitions. [2024-11-13 13:20:41,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 99 transitions, 291 flow [2024-11-13 13:20:41,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:41,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:20:41,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2024-11-13 13:20:41,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7504873294346979 [2024-11-13 13:20:41,296 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 237 flow. Second operand 3 states and 385 transitions. [2024-11-13 13:20:41,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 99 transitions, 291 flow [2024-11-13 13:20:41,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 99 transitions, 291 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:20:41,300 INFO L231 Difference]: Finished difference. Result has 102 places, 0 transitions, 0 flow [2024-11-13 13:20:41,300 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=102, PETRI_TRANSITIONS=0} [2024-11-13 13:20:41,301 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, -18 predicate places. [2024-11-13 13:20:41,302 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 0 transitions, 0 flow [2024-11-13 13:20:41,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2024-11-13 13:20:41,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 27 remaining) [2024-11-13 13:20:41,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 27 remaining) [2024-11-13 13:20:41,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 27 remaining) [2024-11-13 13:20:41,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 27 remaining) [2024-11-13 13:20:41,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 27 remaining) [2024-11-13 13:20:41,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2024-11-13 13:20:41,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2024-11-13 13:20:41,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2024-11-13 13:20:41,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2024-11-13 13:20:41,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2024-11-13 13:20:41,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2024-11-13 13:20:41,308 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2024-11-13 13:20:41,308 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 27 remaining) [2024-11-13 13:20:41,308 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2024-11-13 13:20:41,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2024-11-13 13:20:41,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 27 remaining) [2024-11-13 13:20:41,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 27 remaining) [2024-11-13 13:20:41,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2024-11-13 13:20:41,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2024-11-13 13:20:41,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2024-11-13 13:20:41,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2024-11-13 13:20:41,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2024-11-13 13:20:41,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2024-11-13 13:20:41,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2024-11-13 13:20:41,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2024-11-13 13:20:41,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2024-11-13 13:20:41,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2024-11-13 13:20:41,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:20:41,310 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-13 13:20:41,319 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 13:20:41,319 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:20:41,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:20:41 BasicIcfg [2024-11-13 13:20:41,326 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:20:41,326 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:20:41,326 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:20:41,326 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:20:41,327 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:20:39" (3/4) ... [2024-11-13 13:20:41,329 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 13:20:41,332 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2024-11-13 13:20:41,332 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-13 13:20:41,333 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-13 13:20:41,333 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-13 13:20:41,338 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-13 13:20:41,338 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 13:20:41,338 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 13:20:41,338 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 13:20:41,415 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:20:41,416 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 13:20:41,416 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:20:41,416 INFO L158 Benchmark]: Toolchain (without parser) took 3418.50ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 117.0MB in the beginning and 385.6MB in the end (delta: -268.6MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2024-11-13 13:20:41,417 INFO L158 Benchmark]: CDTParser took 0.97ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:20:41,417 INFO L158 Benchmark]: CACSL2BoogieTranslator took 818.99ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 84.4MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 13:20:41,417 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.22ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 82.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:20:41,418 INFO L158 Benchmark]: Boogie Preprocessor took 23.60ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 81.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:20:41,419 INFO L158 Benchmark]: RCFGBuilder took 502.35ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 64.7MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:20:41,419 INFO L158 Benchmark]: TraceAbstraction took 1938.58ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 64.2MB in the beginning and 389.1MB in the end (delta: -325.0MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2024-11-13 13:20:41,420 INFO L158 Benchmark]: Witness Printer took 89.54ms. Allocated memory is still 427.8MB. Free memory was 389.1MB in the beginning and 385.6MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:20:41,422 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 818.99ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 84.4MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.22ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 82.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.60ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 81.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 502.35ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 64.7MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1938.58ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 64.2MB in the beginning and 389.1MB in the end (delta: -325.0MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * Witness Printer took 89.54ms. Allocated memory is still 427.8MB. Free memory was 389.1MB in the beginning and 385.6MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 206 locations, 27 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: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 1 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 0.6s InterpolantComputationTime, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 206 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 13:20:41,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0898b3c4-59d1-4a47-89db-b009957b2d27/bin/uautomizer-verify-qhAvR1uOyd/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 Result: TRUE