./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.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_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/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_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/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_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/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 e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:15:30,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:15:30,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-27 23:15:30,922 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:15:30,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:15:30,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:15:30,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:15:30,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:15:30,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:15:30,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:15:30,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:15:30,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:15:30,949 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:15:30,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:15:30,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:15:30,949 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:15:30,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:15:30,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:15:30,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:15:30,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:15:30,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:15:30,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:15:30,950 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-27 23:15:30,951 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:15:30,951 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:15:30,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:15:30,951 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:15:30,951 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:15:30,951 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:15:30,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:15:30,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:15:30,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:30,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:15:30,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:15:30,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:15:30,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:30,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:15:30,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:15:30,953 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:15:30,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:15:30,953 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:15:30,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:15:30,953 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:15:30,953 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:15:30,953 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:15:30,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:15:30,953 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_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/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 -> e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f [2024-11-27 23:15:31,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:15:31,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:15:31,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:15:31,260 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:15:31,260 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:15:31,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2024-11-27 23:15:34,252 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/data/db3fcb37e/2e3efa5c91864f84b5184e3cccec52fc/FLAG4ca0407f2 [2024-11-27 23:15:34,704 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:15:34,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2024-11-27 23:15:34,731 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/data/db3fcb37e/2e3efa5c91864f84b5184e3cccec52fc/FLAG4ca0407f2 [2024-11-27 23:15:34,756 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/data/db3fcb37e/2e3efa5c91864f84b5184e3cccec52fc [2024-11-27 23:15:34,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:15:34,760 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:15:34,761 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:15:34,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:15:34,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:15:34,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:15:34" (1/1) ... [2024-11-27 23:15:34,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22409fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:34, skipping insertion in model container [2024-11-27 23:15:34,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:15:34" (1/1) ... [2024-11-27 23:15:34,821 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:15:35,430 WARN L640 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2024-11-27 23:15:35,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:15:35,463 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:15:35,517 WARN L640 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2024-11-27 23:15:35,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:15:35,569 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2024-11-27 23:15:35,575 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:15:35,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35 WrapperNode [2024-11-27 23:15:35,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:15:35,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:15:35,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:15:35,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:15:35,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35" (1/1) ... [2024-11-27 23:15:35,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35" (1/1) ... [2024-11-27 23:15:35,626 INFO L138 Inliner]: procedures = 264, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-11-27 23:15:35,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:15:35,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:15:35,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:15:35,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:15:35,635 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35" (1/1) ... [2024-11-27 23:15:35,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35" (1/1) ... [2024-11-27 23:15:35,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35" (1/1) ... [2024-11-27 23:15:35,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35" (1/1) ... [2024-11-27 23:15:35,653 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35" (1/1) ... [2024-11-27 23:15:35,654 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35" (1/1) ... [2024-11-27 23:15:35,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35" (1/1) ... [2024-11-27 23:15:35,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35" (1/1) ... [2024-11-27 23:15:35,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35" (1/1) ... [2024-11-27 23:15:35,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:15:35,663 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:15:35,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:15:35,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:15:35,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35" (1/1) ... [2024-11-27 23:15:35,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:35,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:35,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:15:35,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:15:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 23:15:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 23:15:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 23:15:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 23:15:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:15:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 23:15:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-27 23:15:35,743 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-27 23:15:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:15:35,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:15:35,745 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:15:35,870 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:15:35,872 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:15:36,095 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:15:36,095 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:15:36,112 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:15:36,112 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-27 23:15:36,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:36 BoogieIcfgContainer [2024-11-27 23:15:36,113 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:15:36,118 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:15:36,118 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:15:36,124 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:15:36,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:15:34" (1/3) ... [2024-11-27 23:15:36,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54de76af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:15:36, skipping insertion in model container [2024-11-27 23:15:36,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:35" (2/3) ... [2024-11-27 23:15:36,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54de76af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:15:36, skipping insertion in model container [2024-11-27 23:15:36,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:36" (3/3) ... [2024-11-27 23:15:36,127 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.i [2024-11-27 23:15:36,146 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:15:36,148 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG atomic-gcc.i that has 2 procedures, 74 locations, 1 initial locations, 3 loop locations, and 3 error locations. [2024-11-27 23:15:36,148 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:15:36,228 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-27 23:15:36,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 79 transitions, 165 flow [2024-11-27 23:15:36,361 INFO L124 PetriNetUnfolderBase]: 7/110 cut-off events. [2024-11-27 23:15:36,364 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 23:15:36,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 110 events. 7/110 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 156 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 54. Up to 4 conditions per place. [2024-11-27 23:15:36,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 79 transitions, 165 flow [2024-11-27 23:15:36,379 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 79 transitions, 165 flow [2024-11-27 23:15:36,392 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:15:36,404 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;@2d05d29b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:15:36,404 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-27 23:15:36,434 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:15:36,438 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-27 23:15:36,438 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:15:36,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:36,439 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] [2024-11-27 23:15:36,441 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:15:36,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:36,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1737486019, now seen corresponding path program 1 times [2024-11-27 23:15:36,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:36,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046143366] [2024-11-27 23:15:36,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:36,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:36,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:36,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:36,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046143366] [2024-11-27 23:15:36,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046143366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:36,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:36,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:36,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138626297] [2024-11-27 23:15:36,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:36,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:15:36,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:37,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:15:37,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:15:37,186 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 79 [2024-11-27 23:15:37,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 79 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 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) [2024-11-27 23:15:37,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:15:37,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 79 [2024-11-27 23:15:37,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:15:37,265 INFO L124 PetriNetUnfolderBase]: 0/84 cut-off events. [2024-11-27 23:15:37,265 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 23:15:37,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 84 events. 0/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 10/90 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2024-11-27 23:15:37,269 INFO L140 encePairwiseOnDemand]: 66/79 looper letters, 9 selfloop transitions, 2 changer transitions 6/68 dead transitions. [2024-11-27 23:15:37,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 68 transitions, 172 flow [2024-11-27 23:15:37,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:37,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:15:37,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 392 transitions. [2024-11-27 23:15:37,289 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8270042194092827 [2024-11-27 23:15:37,290 INFO L175 Difference]: Start difference. First operand has 77 places, 79 transitions, 165 flow. Second operand 6 states and 392 transitions. [2024-11-27 23:15:37,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 68 transitions, 172 flow [2024-11-27 23:15:37,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 23:15:37,305 INFO L231 Difference]: Finished difference. Result has 75 places, 62 transitions, 146 flow [2024-11-27 23:15:37,310 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=146, PETRI_PLACES=75, PETRI_TRANSITIONS=62} [2024-11-27 23:15:37,314 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -2 predicate places. [2024-11-27 23:15:37,314 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 62 transitions, 146 flow [2024-11-27 23:15:37,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 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) [2024-11-27 23:15:37,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:37,315 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] [2024-11-27 23:15:37,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:15:37,315 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:15:37,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:37,316 INFO L85 PathProgramCache]: Analyzing trace with hash -306830226, now seen corresponding path program 1 times [2024-11-27 23:15:37,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:37,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883000846] [2024-11-27 23:15:37,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:37,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:38,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:38,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:38,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883000846] [2024-11-27 23:15:38,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883000846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:38,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:38,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:38,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502405526] [2024-11-27 23:15:38,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:38,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:38,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:38,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:38,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:38,271 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 79 [2024-11-27 23:15:38,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 62 transitions, 146 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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) [2024-11-27 23:15:38,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:15:38,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 79 [2024-11-27 23:15:38,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:15:38,346 INFO L124 PetriNetUnfolderBase]: 0/71 cut-off events. [2024-11-27 23:15:38,346 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-27 23:15:38,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 71 events. 0/71 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2024-11-27 23:15:38,348 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 13 selfloop transitions, 5 changer transitions 0/61 dead transitions. [2024-11-27 23:15:38,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 61 transitions, 180 flow [2024-11-27 23:15:38,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:38,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:15:38,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 343 transitions. [2024-11-27 23:15:38,355 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7236286919831224 [2024-11-27 23:15:38,355 INFO L175 Difference]: Start difference. First operand has 75 places, 62 transitions, 146 flow. Second operand 6 states and 343 transitions. [2024-11-27 23:15:38,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 61 transitions, 180 flow [2024-11-27 23:15:38,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 61 transitions, 166 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-27 23:15:38,358 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 140 flow [2024-11-27 23:15:38,359 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=140, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2024-11-27 23:15:38,360 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -7 predicate places. [2024-11-27 23:15:38,360 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 140 flow [2024-11-27 23:15:38,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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) [2024-11-27 23:15:38,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:38,361 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] [2024-11-27 23:15:38,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:15:38,361 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:15:38,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:38,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1797742842, now seen corresponding path program 1 times [2024-11-27 23:15:38,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:38,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490537667] [2024-11-27 23:15:38,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:38,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:38,408 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:15:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:38,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:15:38,450 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:15:38,451 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2024-11-27 23:15:38,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2024-11-27 23:15:38,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2024-11-27 23:15:38,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-27 23:15:38,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2024-11-27 23:15:38,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:15:38,456 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-27 23:15:38,484 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 23:15:38,484 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:15:38,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:15:38 BasicIcfg [2024-11-27 23:15:38,489 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:15:38,490 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:15:38,490 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:15:38,490 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:15:38,491 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:36" (3/4) ... [2024-11-27 23:15:38,493 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 23:15:38,494 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:15:38,495 INFO L158 Benchmark]: Toolchain (without parser) took 3734.75ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 91.4MB in the beginning and 245.8MB in the end (delta: -154.4MB). Peak memory consumption was 82.5MB. Max. memory is 16.1GB. [2024-11-27 23:15:38,495 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:15:38,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 814.56ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 63.8MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 23:15:38,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.18ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 61.8MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:15:38,496 INFO L158 Benchmark]: Boogie Preprocessor took 35.25ms. Allocated memory is still 117.4MB. Free memory was 61.8MB in the beginning and 60.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:15:38,496 INFO L158 Benchmark]: RCFGBuilder took 449.46ms. Allocated memory is still 117.4MB. Free memory was 60.4MB in the beginning and 46.6MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:15:38,497 INFO L158 Benchmark]: TraceAbstraction took 2371.90ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 46.2MB in the beginning and 245.9MB in the end (delta: -199.6MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2024-11-27 23:15:38,497 INFO L158 Benchmark]: Witness Printer took 3.62ms. Allocated memory is still 352.3MB. Free memory was 245.9MB in the beginning and 245.8MB in the end (delta: 11.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:15:38,499 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 814.56ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 63.8MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.18ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 61.8MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.25ms. Allocated memory is still 117.4MB. Free memory was 61.8MB in the beginning and 60.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 449.46ms. Allocated memory is still 117.4MB. Free memory was 60.4MB in the beginning and 46.6MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2371.90ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 46.2MB in the beginning and 245.9MB in the end (delta: -199.6MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * Witness Printer took 3.62ms. Allocated memory is still 352.3MB. Free memory was 245.9MB in the beginning and 245.8MB in the end (delta: 11.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1021]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of __sync_fetch_and_add at line 1021. Possible FailurePath: [L1019] 0 int data; VAL [data={1:0}] [L1025] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data={1:0}, threads_total=2] [L1026] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data={1:0}] [L1026] RET 0 assume_abort_if_not(threads_total >= 0) [L1027] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data={1:0}, threads_total=2, tids={-2:0}] [L1028] 0 int i = 0; VAL [data={1:0}, i=0, threads_total=2, tids={-2:0}] [L1028] COND TRUE 0 i < threads_total VAL [data={1:0}, i=0, threads_total=2, tids={-2:0}] [L1029] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=2, tids={-2:0}] [L1029] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=2, tids={-2:0}] [L1021] CALL 1 __sync_fetch_and_add(&data, 1) - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1029]: 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 3 procedures, 87 locations, 5 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: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 199 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 2 mSDtfsCounter, 199 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 1.1s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces [2024-11-27 23:15:38,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/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_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/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 e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:15:41,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:15:41,362 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2024-11-27 23:15:41,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:15:41,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:15:41,422 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:15:41,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:15:41,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:15:41,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:15:41,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:15:41,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:15:41,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:15:41,426 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:15:41,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:15:41,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:15:41,427 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:15:41,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:15:41,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:15:41,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:15:41,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:15:41,428 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:15:41,428 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-27 23:15:41,428 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 23:15:41,428 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 23:15:41,428 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:15:41,428 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:15:41,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:15:41,429 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:15:41,429 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:15:41,429 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:15:41,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:15:41,429 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:15:41,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:41,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:15:41,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:15:41,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:15:41,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:41,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:15:41,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:15:41,431 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:15:41,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:15:41,431 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 23:15:41,431 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 23:15:41,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:15:41,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:15:41,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:15:41,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:15:41,432 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_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/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 -> e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f [2024-11-27 23:15:41,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:15:41,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:15:41,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:15:41,752 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:15:41,752 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:15:41,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2024-11-27 23:15:44,723 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/data/c0722b2c6/4363192358a04f898f03f23dc27bee6e/FLAG0b9ce5a98 [2024-11-27 23:15:45,105 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:15:45,106 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2024-11-27 23:15:45,129 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/data/c0722b2c6/4363192358a04f898f03f23dc27bee6e/FLAG0b9ce5a98 [2024-11-27 23:15:45,149 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/data/c0722b2c6/4363192358a04f898f03f23dc27bee6e [2024-11-27 23:15:45,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:15:45,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:15:45,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:15:45,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:15:45,161 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:15:45,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785434d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45, skipping insertion in model container [2024-11-27 23:15:45,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,226 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:15:45,611 WARN L640 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2024-11-27 23:15:45,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:15:45,650 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:15:45,706 WARN L640 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2024-11-27 23:15:45,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:15:45,767 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2024-11-27 23:15:45,775 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:15:45,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45 WrapperNode [2024-11-27 23:15:45,775 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:15:45,776 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:15:45,777 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:15:45,777 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:15:45,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,800 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,823 INFO L138 Inliner]: procedures = 265, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2024-11-27 23:15:45,823 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:15:45,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:15:45,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:15:45,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:15:45,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,837 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,838 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,856 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:15:45,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:15:45,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:15:45,881 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:15:45,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45" (1/1) ... [2024-11-27 23:15:45,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:45,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:45,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:15:45,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:15:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-27 23:15:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 23:15:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-27 23:15:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-27 23:15:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 23:15:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:15:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-27 23:15:45,950 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-27 23:15:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:15:45,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:15:45,952 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:15:46,159 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:15:46,161 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:15:46,463 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:15:46,463 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:15:46,476 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:15:46,477 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-27 23:15:46,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:46 BoogieIcfgContainer [2024-11-27 23:15:46,478 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:15:46,480 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:15:46,480 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:15:46,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:15:46,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:15:45" (1/3) ... [2024-11-27 23:15:46,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516c6d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:15:46, skipping insertion in model container [2024-11-27 23:15:46,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:45" (2/3) ... [2024-11-27 23:15:46,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516c6d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:15:46, skipping insertion in model container [2024-11-27 23:15:46,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:46" (3/3) ... [2024-11-27 23:15:46,490 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.i [2024-11-27 23:15:46,506 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:15:46,508 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG atomic-gcc.i that has 2 procedures, 73 locations, 1 initial locations, 3 loop locations, and 3 error locations. [2024-11-27 23:15:46,508 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:15:46,601 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-27 23:15:46,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 78 transitions, 163 flow [2024-11-27 23:15:46,723 INFO L124 PetriNetUnfolderBase]: 7/109 cut-off events. [2024-11-27 23:15:46,729 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 23:15:46,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 109 events. 7/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 151 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 54. Up to 4 conditions per place. [2024-11-27 23:15:46,736 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 78 transitions, 163 flow [2024-11-27 23:15:46,741 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 78 transitions, 163 flow [2024-11-27 23:15:46,758 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:15:46,777 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;@95ff346, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:15:46,777 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-27 23:15:46,812 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:15:46,812 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-27 23:15:46,812 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:15:46,812 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:46,813 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] [2024-11-27 23:15:46,813 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:15:46,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:46,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1317451248, now seen corresponding path program 1 times [2024-11-27 23:15:46,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:46,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051745873] [2024-11-27 23:15:46,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:46,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:46,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:46,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:15:46,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:15:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:46,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:15:47,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:47,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:47,111 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:47,111 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:47,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051745873] [2024-11-27 23:15:47,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051745873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:47,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:47,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:47,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490941629] [2024-11-27 23:15:47,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:47,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:15:47,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:47,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:15:47,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:15:47,415 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 78 [2024-11-27 23:15:47,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 78 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 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) [2024-11-27 23:15:47,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:15:47,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 78 [2024-11-27 23:15:47,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:15:47,478 INFO L124 PetriNetUnfolderBase]: 0/84 cut-off events. [2024-11-27 23:15:47,479 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 23:15:47,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 84 events. 0/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 10/90 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2024-11-27 23:15:47,481 INFO L140 encePairwiseOnDemand]: 65/78 looper letters, 9 selfloop transitions, 2 changer transitions 6/68 dead transitions. [2024-11-27 23:15:47,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 68 transitions, 172 flow [2024-11-27 23:15:47,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:47,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:15:47,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 386 transitions. [2024-11-27 23:15:47,496 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8247863247863247 [2024-11-27 23:15:47,497 INFO L175 Difference]: Start difference. First operand has 76 places, 78 transitions, 163 flow. Second operand 6 states and 386 transitions. [2024-11-27 23:15:47,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 68 transitions, 172 flow [2024-11-27 23:15:47,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 23:15:47,506 INFO L231 Difference]: Finished difference. Result has 75 places, 62 transitions, 146 flow [2024-11-27 23:15:47,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=146, PETRI_PLACES=75, PETRI_TRANSITIONS=62} [2024-11-27 23:15:47,515 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, -1 predicate places. [2024-11-27 23:15:47,515 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 62 transitions, 146 flow [2024-11-27 23:15:47,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 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) [2024-11-27 23:15:47,515 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:47,516 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] [2024-11-27 23:15:47,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:15:47,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:47,719 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:15:47,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:47,720 INFO L85 PathProgramCache]: Analyzing trace with hash -58286362, now seen corresponding path program 1 times [2024-11-27 23:15:47,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:47,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [170094071] [2024-11-27 23:15:47,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:47,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:47,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:47,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:15:47,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:15:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:47,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 23:15:47,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:48,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-27 23:15:48,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2024-11-27 23:15:48,301 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:15:48,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 38 [2024-11-27 23:15:48,423 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:15:48,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 52 [2024-11-27 23:15:48,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:48,500 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:48,500 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:48,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170094071] [2024-11-27 23:15:48,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170094071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:48,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:48,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 23:15:48,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506593277] [2024-11-27 23:15:48,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:48,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:15:48,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:48,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:15:48,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:15:49,017 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 78 [2024-11-27 23:15:49,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 62 transitions, 146 flow. Second operand has 11 states, 11 states have (on average 46.54545454545455) internal successors, (512), 11 states have internal predecessors, (512), 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) [2024-11-27 23:15:49,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:15:49,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 78 [2024-11-27 23:15:49,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:15:49,163 INFO L124 PetriNetUnfolderBase]: 0/72 cut-off events. [2024-11-27 23:15:49,164 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-27 23:15:49,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 72 events. 0/72 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2024-11-27 23:15:49,164 INFO L140 encePairwiseOnDemand]: 62/78 looper letters, 17 selfloop transitions, 15 changer transitions 0/68 dead transitions. [2024-11-27 23:15:49,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 68 transitions, 222 flow [2024-11-27 23:15:49,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:15:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-27 23:15:49,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 573 transitions. [2024-11-27 23:15:49,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6121794871794872 [2024-11-27 23:15:49,171 INFO L175 Difference]: Start difference. First operand has 75 places, 62 transitions, 146 flow. Second operand 12 states and 573 transitions. [2024-11-27 23:15:49,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 68 transitions, 222 flow [2024-11-27 23:15:49,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 68 transitions, 208 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-27 23:15:49,176 INFO L231 Difference]: Finished difference. Result has 82 places, 66 transitions, 192 flow [2024-11-27 23:15:49,176 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=192, PETRI_PLACES=82, PETRI_TRANSITIONS=66} [2024-11-27 23:15:49,177 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 6 predicate places. [2024-11-27 23:15:49,177 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 66 transitions, 192 flow [2024-11-27 23:15:49,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 46.54545454545455) internal successors, (512), 11 states have internal predecessors, (512), 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) [2024-11-27 23:15:49,178 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:15:49,178 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] [2024-11-27 23:15:49,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:15:49,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:49,382 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:15:49,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:49,383 INFO L85 PathProgramCache]: Analyzing trace with hash 439188095, now seen corresponding path program 1 times [2024-11-27 23:15:49,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:49,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41662002] [2024-11-27 23:15:49,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:49,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:49,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:49,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:15:49,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:15:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:49,497 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:15:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:49,563 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-27 23:15:49,564 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:15:49,565 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2024-11-27 23:15:49,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2024-11-27 23:15:49,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2024-11-27 23:15:49,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-27 23:15:49,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2024-11-27 23:15:49,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:15:49,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:49,770 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-27 23:15:49,819 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 23:15:49,819 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:15:49,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:15:49 BasicIcfg [2024-11-27 23:15:49,829 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:15:49,831 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:15:49,831 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:15:49,831 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:15:49,832 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:46" (3/4) ... [2024-11-27 23:15:49,834 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 23:15:49,835 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:15:49,837 INFO L158 Benchmark]: Toolchain (without parser) took 4681.64ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 91.8MB in the beginning and 187.0MB in the end (delta: -95.2MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2024-11-27 23:15:49,839 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:15:49,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 620.23ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 63.4MB in the end (delta: 28.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:15:49,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.96ms. Allocated memory is still 117.4MB. Free memory was 63.4MB in the beginning and 61.4MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:15:49,840 INFO L158 Benchmark]: Boogie Preprocessor took 56.49ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 59.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:15:49,841 INFO L158 Benchmark]: RCFGBuilder took 597.11ms. Allocated memory is still 117.4MB. Free memory was 59.5MB in the beginning and 88.7MB in the end (delta: -29.2MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-11-27 23:15:49,842 INFO L158 Benchmark]: TraceAbstraction took 3349.52ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 87.7MB in the beginning and 187.0MB in the end (delta: -99.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-27 23:15:49,842 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 251.7MB. Free memory was 187.0MB in the beginning and 187.0MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:15:49,846 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 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 620.23ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 63.4MB in the end (delta: 28.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.96ms. Allocated memory is still 117.4MB. Free memory was 63.4MB in the beginning and 61.4MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.49ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 59.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 597.11ms. Allocated memory is still 117.4MB. Free memory was 59.5MB in the beginning and 88.7MB in the end (delta: -29.2MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3349.52ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 87.7MB in the beginning and 187.0MB in the end (delta: -99.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 251.7MB. Free memory was 187.0MB in the beginning and 187.0MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1021]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of __sync_fetch_and_add at line 1021. Possible FailurePath: [L1019] 0 int data; VAL [data={1:0}] [L1025] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data={1:0}, threads_total=1073741824] [L1026] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data={1:0}] [L1026] RET 0 assume_abort_if_not(threads_total >= 0) [L1027] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data={1:0}, threads_total=1073741824, tids={2:0}] [L1028] 0 int i = 0; VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L1028] COND TRUE 0 i < threads_total VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L1029] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L1029] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L1021] CALL 1 __sync_fetch_and_add(&data, 1) - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1029]: 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 3 procedures, 85 locations, 5 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: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 299 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 349 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 270 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 485 IncrementalHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 79 mSDtfsCounter, 485 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=2, InterpolantAutomatonStates: 18, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 249 SizeOfPredicates, 5 NumberOfNonLiveVariables, 104 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces [2024-11-27 23:15:49,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b14b7d0c-cbf7-4322-83b4-f72b68ac75da/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample