./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC --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 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:25:15,690 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:25:15,758 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-23 18:25:15,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:25:15,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:25:15,789 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:25:15,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:25:15,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:25:15,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:25:15,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:25:15,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:25:15,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:25:15,795 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:25:15,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:25:15,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:25:15,796 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:25:15,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:25:15,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:25:15,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:25:15,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:25:15,798 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:25:15,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:25:15,799 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-23 18:25:15,799 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 18:25:15,799 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:25:15,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:25:15,799 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:25:15,799 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:25:15,799 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:25:15,799 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:25:15,799 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:25:15,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:25:15,800 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:25:15,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:25:15,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:25:15,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:25:15,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:25:15,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:25:15,800 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:25:15,800 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:25:15,801 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:25:15,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:25:15,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:25:15,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:25:15,802 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:25:15,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:25:15,802 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_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC 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 -> 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f [2024-11-23 18:25:16,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:25:16,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:25:16,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:25:16,105 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:25:16,105 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:25:16,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2024-11-23 18:25:19,146 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/data/4758fcd82/5c8efe79047e4c549c2466b61e4a1f42/FLAG937ada3fb [2024-11-23 18:25:19,519 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:25:19,520 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2024-11-23 18:25:19,544 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/data/4758fcd82/5c8efe79047e4c549c2466b61e4a1f42/FLAG937ada3fb [2024-11-23 18:25:19,569 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/data/4758fcd82/5c8efe79047e4c549c2466b61e4a1f42 [2024-11-23 18:25:19,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:25:19,576 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:25:19,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:25:19,578 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:25:19,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:25:19,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:25:19" (1/1) ... [2024-11-23 18:25:19,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b156afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:19, skipping insertion in model container [2024-11-23 18:25:19,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:25:19" (1/1) ... [2024-11-23 18:25:19,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:25:19,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:25:19,951 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:25:20,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:25:20,100 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:25:20,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20 WrapperNode [2024-11-23 18:25:20,101 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:25:20,102 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:25:20,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:25:20,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:25:20,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20" (1/1) ... [2024-11-23 18:25:20,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20" (1/1) ... [2024-11-23 18:25:20,180 INFO L138 Inliner]: procedures = 165, calls = 74, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 117 [2024-11-23 18:25:20,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:25:20,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:25:20,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:25:20,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:25:20,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20" (1/1) ... [2024-11-23 18:25:20,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20" (1/1) ... [2024-11-23 18:25:20,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20" (1/1) ... [2024-11-23 18:25:20,203 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20" (1/1) ... [2024-11-23 18:25:20,218 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20" (1/1) ... [2024-11-23 18:25:20,223 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20" (1/1) ... [2024-11-23 18:25:20,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20" (1/1) ... [2024-11-23 18:25:20,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20" (1/1) ... [2024-11-23 18:25:20,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20" (1/1) ... [2024-11-23 18:25:20,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:25:20,243 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:25:20,243 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:25:20,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:25:20,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20" (1/1) ... [2024-11-23 18:25:20,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:25:20,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:25:20,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:25:20,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:25:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 18:25:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 18:25:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 18:25:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:25:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-23 18:25:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-23 18:25:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 18:25:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 18:25:20,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:25:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:25:20,334 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 18:25:20,486 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:25:20,487 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:25:20,874 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 18:25:20,875 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:25:20,917 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:25:20,917 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 18:25:20,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:25:20 BoogieIcfgContainer [2024-11-23 18:25:20,918 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:25:20,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:25:20,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:25:20,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:25:20,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:25:19" (1/3) ... [2024-11-23 18:25:20,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7b453b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:25:20, skipping insertion in model container [2024-11-23 18:25:20,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:25:20" (2/3) ... [2024-11-23 18:25:20,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7b453b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:25:20, skipping insertion in model container [2024-11-23 18:25:20,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:25:20" (3/3) ... [2024-11-23 18:25:20,933 INFO L128 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_13-idxunknown_lock.i [2024-11-23 18:25:20,953 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:25:20,954 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 05-lval_ls_13-idxunknown_lock.i that has 2 procedures, 148 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-23 18:25:20,954 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 18:25:21,046 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 18:25:21,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 150 transitions, 304 flow [2024-11-23 18:25:21,252 INFO L124 PetriNetUnfolderBase]: 3/149 cut-off events. [2024-11-23 18:25:21,257 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:25:21,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 149 events. 3/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2024-11-23 18:25:21,266 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 150 transitions, 304 flow [2024-11-23 18:25:21,273 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 149 transitions, 301 flow [2024-11-23 18:25:21,282 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:25:21,303 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;@13025612, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:25:21,303 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-23 18:25:21,343 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 18:25:21,343 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2024-11-23 18:25:21,343 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:25:21,344 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:25:21,345 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:25:21,345 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 18:25:21,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:25:21,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1028426299, now seen corresponding path program 1 times [2024-11-23 18:25:21,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:25:21,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458243856] [2024-11-23 18:25:21,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:25:21,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:25:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:25:21,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:25:21,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:25:21,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458243856] [2024-11-23 18:25:21,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458243856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:25:21,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:25:21,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:25:21,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525705092] [2024-11-23 18:25:21,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:25:21,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:25:21,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:25:21,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:25:21,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:25:22,017 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 150 [2024-11-23 18:25:22,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 149 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2024-11-23 18:25:22,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:25:22,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 150 [2024-11-23 18:25:22,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:25:22,109 INFO L124 PetriNetUnfolderBase]: 7/232 cut-off events. [2024-11-23 18:25:22,109 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 18:25:22,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 232 events. 7/232 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 328 event pairs, 6 based on Foata normal form. 2/221 useless extension candidates. Maximal degree in co-relation 153. Up to 24 conditions per place. [2024-11-23 18:25:22,113 INFO L140 encePairwiseOnDemand]: 145/150 looper letters, 10 selfloop transitions, 2 changer transitions 1/148 dead transitions. [2024-11-23 18:25:22,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 148 transitions, 323 flow [2024-11-23 18:25:22,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:25:22,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:25:22,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2024-11-23 18:25:22,133 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9488888888888889 [2024-11-23 18:25:22,136 INFO L175 Difference]: Start difference. First operand has 150 places, 149 transitions, 301 flow. Second operand 3 states and 427 transitions. [2024-11-23 18:25:22,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 148 transitions, 323 flow [2024-11-23 18:25:22,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 148 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 18:25:22,154 INFO L231 Difference]: Finished difference. Result has 152 places, 147 transitions, 306 flow [2024-11-23 18:25:22,157 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=152, PETRI_TRANSITIONS=147} [2024-11-23 18:25:22,163 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 2 predicate places. [2024-11-23 18:25:22,163 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 147 transitions, 306 flow [2024-11-23 18:25:22,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2024-11-23 18:25:22,164 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:25:22,164 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:25:22,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:25:22,167 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 18:25:22,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:25:22,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1443569882, now seen corresponding path program 1 times [2024-11-23 18:25:22,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:25:22,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183689920] [2024-11-23 18:25:22,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:25:22,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:25:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:25:22,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:25:22,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:25:22,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183689920] [2024-11-23 18:25:22,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183689920] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:25:22,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306032730] [2024-11-23 18:25:22,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:25:22,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:25:22,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:25:22,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:25:22,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:25:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:25:22,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 18:25:22,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:25:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:25:22,728 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:25:22,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:25:22,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306032730] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:25:22,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:25:22,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-23 18:25:22,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126325444] [2024-11-23 18:25:22,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:25:22,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:25:22,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:25:22,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:25:22,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:25:22,825 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 150 [2024-11-23 18:25:22,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 147 transitions, 306 flow. Second operand has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2024-11-23 18:25:22,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:25:22,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 150 [2024-11-23 18:25:22,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:25:23,050 INFO L124 PetriNetUnfolderBase]: 7/238 cut-off events. [2024-11-23 18:25:23,051 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 18:25:23,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 238 events. 7/238 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 328 event pairs, 6 based on Foata normal form. 2/228 useless extension candidates. Maximal degree in co-relation 200. Up to 24 conditions per place. [2024-11-23 18:25:23,053 INFO L140 encePairwiseOnDemand]: 144/150 looper letters, 14 selfloop transitions, 9 changer transitions 0/155 dead transitions. [2024-11-23 18:25:23,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 155 transitions, 370 flow [2024-11-23 18:25:23,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:25:23,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 18:25:23,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1231 transitions. [2024-11-23 18:25:23,064 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9118518518518518 [2024-11-23 18:25:23,064 INFO L175 Difference]: Start difference. First operand has 152 places, 147 transitions, 306 flow. Second operand 9 states and 1231 transitions. [2024-11-23 18:25:23,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 155 transitions, 370 flow [2024-11-23 18:25:23,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 155 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 18:25:23,069 INFO L231 Difference]: Finished difference. Result has 161 places, 153 transitions, 354 flow [2024-11-23 18:25:23,070 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=354, PETRI_PLACES=161, PETRI_TRANSITIONS=153} [2024-11-23 18:25:23,071 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 11 predicate places. [2024-11-23 18:25:23,071 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 153 transitions, 354 flow [2024-11-23 18:25:23,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2024-11-23 18:25:23,074 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:25:23,076 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:25:23,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 18:25:23,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:25:23,277 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 18:25:23,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:25:23,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1101221958, now seen corresponding path program 2 times [2024-11-23 18:25:23,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:25:23,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431518285] [2024-11-23 18:25:23,278 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 18:25:23,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:25:23,334 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 18:25:23,335 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 18:25:24,184 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 18:25:24,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:25:24,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431518285] [2024-11-23 18:25:24,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431518285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:25:24,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:25:24,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:25:24,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170141878] [2024-11-23 18:25:24,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:25:24,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:25:24,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:25:24,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:25:24,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:25:24,456 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 150 [2024-11-23 18:25:24,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 153 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 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) [2024-11-23 18:25:24,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:25:24,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 150 [2024-11-23 18:25:24,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:25:24,992 INFO L124 PetriNetUnfolderBase]: 261/1018 cut-off events. [2024-11-23 18:25:24,992 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-23 18:25:24,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1621 conditions, 1018 events. 261/1018 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6013 event pairs, 67 based on Foata normal form. 0/983 useless extension candidates. Maximal degree in co-relation 1507. Up to 257 conditions per place. [2024-11-23 18:25:25,005 INFO L140 encePairwiseOnDemand]: 128/150 looper letters, 88 selfloop transitions, 42 changer transitions 0/255 dead transitions. [2024-11-23 18:25:25,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 255 transitions, 818 flow [2024-11-23 18:25:25,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:25:25,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 18:25:25,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 852 transitions. [2024-11-23 18:25:25,010 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9466666666666667 [2024-11-23 18:25:25,010 INFO L175 Difference]: Start difference. First operand has 161 places, 153 transitions, 354 flow. Second operand 6 states and 852 transitions. [2024-11-23 18:25:25,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 255 transitions, 818 flow [2024-11-23 18:25:25,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 255 transitions, 812 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-23 18:25:25,022 INFO L231 Difference]: Finished difference. Result has 170 places, 199 transitions, 664 flow [2024-11-23 18:25:25,023 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=664, PETRI_PLACES=170, PETRI_TRANSITIONS=199} [2024-11-23 18:25:25,024 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 20 predicate places. [2024-11-23 18:25:25,024 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 199 transitions, 664 flow [2024-11-23 18:25:25,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 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) [2024-11-23 18:25:25,027 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:25:25,027 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:25:25,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:25:25,028 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 18:25:25,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:25:25,029 INFO L85 PathProgramCache]: Analyzing trace with hash -494340545, now seen corresponding path program 1 times [2024-11-23 18:25:25,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:25:25,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114828702] [2024-11-23 18:25:25,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:25:25,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:25:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:25:25,308 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:25:25,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:25:25,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114828702] [2024-11-23 18:25:25,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114828702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:25:25,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914183426] [2024-11-23 18:25:25,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:25:25,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:25:25,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:25:25,314 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:25:25,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:25:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:25:25,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 18:25:25,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:25:25,522 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:25:25,524 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:25:25,678 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:25:25,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914183426] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:25:25,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:25:25,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-23 18:25:25,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914231248] [2024-11-23 18:25:25,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:25:25,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 18:25:25,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:25:25,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 18:25:25,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-23 18:25:25,732 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 150 [2024-11-23 18:25:25,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 199 transitions, 664 flow. Second operand has 18 states, 18 states have (on average 136.0) internal successors, (2448), 18 states have internal predecessors, (2448), 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) [2024-11-23 18:25:25,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:25:25,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 150 [2024-11-23 18:25:25,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:25:26,198 INFO L124 PetriNetUnfolderBase]: 122/788 cut-off events. [2024-11-23 18:25:26,198 INFO L125 PetriNetUnfolderBase]: For 128/141 co-relation queries the response was YES. [2024-11-23 18:25:26,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 788 events. 122/788 cut-off events. For 128/141 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4547 event pairs, 40 based on Foata normal form. 4/778 useless extension candidates. Maximal degree in co-relation 1268. Up to 125 conditions per place. [2024-11-23 18:25:26,206 INFO L140 encePairwiseOnDemand]: 144/150 looper letters, 18 selfloop transitions, 21 changer transitions 0/217 dead transitions. [2024-11-23 18:25:26,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 217 transitions, 830 flow [2024-11-23 18:25:26,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 18:25:26,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-23 18:25:26,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2857 transitions. [2024-11-23 18:25:26,218 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.906984126984127 [2024-11-23 18:25:26,218 INFO L175 Difference]: Start difference. First operand has 170 places, 199 transitions, 664 flow. Second operand 21 states and 2857 transitions. [2024-11-23 18:25:26,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 217 transitions, 830 flow [2024-11-23 18:25:26,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 217 transitions, 830 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 18:25:26,232 INFO L231 Difference]: Finished difference. Result has 195 places, 212 transitions, 794 flow [2024-11-23 18:25:26,233 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=794, PETRI_PLACES=195, PETRI_TRANSITIONS=212} [2024-11-23 18:25:26,235 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 45 predicate places. [2024-11-23 18:25:26,235 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 212 transitions, 794 flow [2024-11-23 18:25:26,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 136.0) internal successors, (2448), 18 states have internal predecessors, (2448), 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) [2024-11-23 18:25:26,237 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:25:26,237 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:25:26,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 18:25:26,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:25:26,438 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 18:25:26,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:25:26,439 INFO L85 PathProgramCache]: Analyzing trace with hash -614396929, now seen corresponding path program 2 times [2024-11-23 18:25:26,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:25:26,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229856889] [2024-11-23 18:25:26,439 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 18:25:26,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:25:26,472 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 18:25:26,473 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 18:25:27,059 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 18:25:27,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:25:27,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229856889] [2024-11-23 18:25:27,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229856889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:25:27,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:25:27,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:25:27,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713250226] [2024-11-23 18:25:27,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:25:27,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:25:27,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:25:27,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:25:27,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:25:27,329 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 150 [2024-11-23 18:25:27,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 212 transitions, 794 flow. Second operand has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 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) [2024-11-23 18:25:27,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:25:27,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 150 [2024-11-23 18:25:27,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:25:27,821 INFO L124 PetriNetUnfolderBase]: 417/1432 cut-off events. [2024-11-23 18:25:27,822 INFO L125 PetriNetUnfolderBase]: For 638/673 co-relation queries the response was YES. [2024-11-23 18:25:27,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3436 conditions, 1432 events. 417/1432 cut-off events. For 638/673 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9218 event pairs, 108 based on Foata normal form. 21/1437 useless extension candidates. Maximal degree in co-relation 3238. Up to 602 conditions per place. [2024-11-23 18:25:27,833 INFO L140 encePairwiseOnDemand]: 133/150 looper letters, 99 selfloop transitions, 53 changer transitions 6/295 dead transitions. [2024-11-23 18:25:27,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 295 transitions, 1462 flow [2024-11-23 18:25:27,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:25:27,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 18:25:27,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 812 transitions. [2024-11-23 18:25:27,836 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9022222222222223 [2024-11-23 18:25:27,836 INFO L175 Difference]: Start difference. First operand has 195 places, 212 transitions, 794 flow. Second operand 6 states and 812 transitions. [2024-11-23 18:25:27,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 295 transitions, 1462 flow [2024-11-23 18:25:27,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 295 transitions, 1438 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-23 18:25:27,846 INFO L231 Difference]: Finished difference. Result has 199 places, 263 transitions, 1276 flow [2024-11-23 18:25:27,847 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1276, PETRI_PLACES=199, PETRI_TRANSITIONS=263} [2024-11-23 18:25:27,848 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 49 predicate places. [2024-11-23 18:25:27,848 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 263 transitions, 1276 flow [2024-11-23 18:25:27,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 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) [2024-11-23 18:25:27,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:25:27,849 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:25:27,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:25:27,849 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 18:25:27,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:25:27,850 INFO L85 PathProgramCache]: Analyzing trace with hash -714534056, now seen corresponding path program 1 times [2024-11-23 18:25:27,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:25:27,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802874609] [2024-11-23 18:25:27,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:25:27,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:25:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:25:28,344 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:25:28,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:25:28,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802874609] [2024-11-23 18:25:28,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802874609] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:25:28,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803055770] [2024-11-23 18:25:28,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:25:28,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:25:28,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:25:28,347 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:25:28,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 18:25:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:25:28,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 18:25:28,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:25:28,635 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:25:28,635 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:25:28,921 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:25:28,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803055770] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:25:28,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:25:28,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-23 18:25:28,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560431961] [2024-11-23 18:25:28,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:25:28,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-23 18:25:28,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:25:28,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-23 18:25:28,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-23 18:25:28,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 150 [2024-11-23 18:25:28,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 263 transitions, 1276 flow. Second operand has 23 states, 23 states have (on average 136.08695652173913) internal successors, (3130), 23 states have internal predecessors, (3130), 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) [2024-11-23 18:25:28,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:25:28,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 150 [2024-11-23 18:25:28,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:25:29,621 INFO L124 PetriNetUnfolderBase]: 227/1138 cut-off events. [2024-11-23 18:25:29,622 INFO L125 PetriNetUnfolderBase]: For 973/1002 co-relation queries the response was YES. [2024-11-23 18:25:29,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2859 conditions, 1138 events. 227/1138 cut-off events. For 973/1002 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7349 event pairs, 39 based on Foata normal form. 7/1132 useless extension candidates. Maximal degree in co-relation 2581. Up to 212 conditions per place. [2024-11-23 18:25:29,631 INFO L140 encePairwiseOnDemand]: 144/150 looper letters, 21 selfloop transitions, 30 changer transitions 0/280 dead transitions. [2024-11-23 18:25:29,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 280 transitions, 1500 flow [2024-11-23 18:25:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-23 18:25:29,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-23 18:25:29,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4074 transitions. [2024-11-23 18:25:29,640 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9053333333333333 [2024-11-23 18:25:29,640 INFO L175 Difference]: Start difference. First operand has 199 places, 263 transitions, 1276 flow. Second operand 30 states and 4074 transitions. [2024-11-23 18:25:29,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 280 transitions, 1500 flow [2024-11-23 18:25:29,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 280 transitions, 1492 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-23 18:25:29,655 INFO L231 Difference]: Finished difference. Result has 232 places, 273 transitions, 1420 flow [2024-11-23 18:25:29,655 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1420, PETRI_PLACES=232, PETRI_TRANSITIONS=273} [2024-11-23 18:25:29,656 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 82 predicate places. [2024-11-23 18:25:29,656 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 273 transitions, 1420 flow [2024-11-23 18:25:29,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 136.08695652173913) internal successors, (3130), 23 states have internal predecessors, (3130), 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) [2024-11-23 18:25:29,658 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:25:29,658 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:25:29,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 18:25:29,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:25:29,863 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 18:25:29,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:25:29,864 INFO L85 PathProgramCache]: Analyzing trace with hash 2126180813, now seen corresponding path program 2 times [2024-11-23 18:25:29,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:25:29,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286262802] [2024-11-23 18:25:29,864 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 18:25:29,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:25:29,894 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 18:25:29,895 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 18:25:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 18:25:30,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:25:30,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286262802] [2024-11-23 18:25:30,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286262802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:25:30,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:25:30,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:25:30,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029441070] [2024-11-23 18:25:30,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:25:30,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:25:30,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:25:30,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:25:30,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:25:30,659 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 150 [2024-11-23 18:25:30,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 273 transitions, 1420 flow. Second operand has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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) [2024-11-23 18:25:30,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:25:30,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 150 [2024-11-23 18:25:30,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:25:31,225 INFO L124 PetriNetUnfolderBase]: 571/1827 cut-off events. [2024-11-23 18:25:31,225 INFO L125 PetriNetUnfolderBase]: For 2449/2497 co-relation queries the response was YES. [2024-11-23 18:25:31,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5547 conditions, 1827 events. 571/1827 cut-off events. For 2449/2497 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 12297 event pairs, 127 based on Foata normal form. 25/1828 useless extension candidates. Maximal degree in co-relation 5266. Up to 841 conditions per place. [2024-11-23 18:25:31,238 INFO L140 encePairwiseOnDemand]: 133/150 looper letters, 120 selfloop transitions, 58 changer transitions 39/365 dead transitions. [2024-11-23 18:25:31,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 365 transitions, 2378 flow [2024-11-23 18:25:31,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:25:31,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 18:25:31,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 802 transitions. [2024-11-23 18:25:31,240 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8911111111111111 [2024-11-23 18:25:31,240 INFO L175 Difference]: Start difference. First operand has 232 places, 273 transitions, 1420 flow. Second operand 6 states and 802 transitions. [2024-11-23 18:25:31,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 365 transitions, 2378 flow [2024-11-23 18:25:31,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 365 transitions, 2332 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-23 18:25:31,261 INFO L231 Difference]: Finished difference. Result has 223 places, 300 transitions, 1782 flow [2024-11-23 18:25:31,262 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=1374, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1782, PETRI_PLACES=223, PETRI_TRANSITIONS=300} [2024-11-23 18:25:31,264 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 73 predicate places. [2024-11-23 18:25:31,264 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 300 transitions, 1782 flow [2024-11-23 18:25:31,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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) [2024-11-23 18:25:31,264 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:25:31,265 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:25:31,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:25:31,265 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 18:25:31,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:25:31,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1296366986, now seen corresponding path program 1 times [2024-11-23 18:25:31,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:25:31,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137247597] [2024-11-23 18:25:31,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:25:31,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:25:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:25:31,334 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:25:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:25:31,429 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:25:31,429 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:25:31,430 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-23 18:25:31,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-23 18:25:31,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-23 18:25:31,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-23 18:25:31,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-23 18:25:31,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-23 18:25:31,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-23 18:25:31,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:25:31,435 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2024-11-23 18:25:31,538 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 18:25:31,538 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:25:31,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:25:31 BasicIcfg [2024-11-23 18:25:31,544 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:25:31,545 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:25:31,545 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:25:31,545 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:25:31,546 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:25:20" (3/4) ... [2024-11-23 18:25:31,547 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-23 18:25:31,617 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 15. [2024-11-23 18:25:31,693 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 18:25:31,695 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 18:25:31,695 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:25:31,696 INFO L158 Benchmark]: Toolchain (without parser) took 12120.33ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 91.9MB in the beginning and 119.7MB in the end (delta: -27.8MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. [2024-11-23 18:25:31,696 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:25:31,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.66ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 70.3MB in the end (delta: 21.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:25:31,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.55ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 68.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:25:31,697 INFO L158 Benchmark]: Boogie Preprocessor took 60.86ms. Allocated memory is still 117.4MB. Free memory was 68.1MB in the beginning and 66.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:25:31,697 INFO L158 Benchmark]: RCFGBuilder took 674.91ms. Allocated memory is still 117.4MB. Free memory was 66.4MB in the beginning and 46.4MB in the end (delta: 20.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 18:25:31,697 INFO L158 Benchmark]: TraceAbstraction took 10621.36ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 45.8MB in the beginning and 130.2MB in the end (delta: -84.4MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2024-11-23 18:25:31,697 INFO L158 Benchmark]: Witness Printer took 149.85ms. Allocated memory is still 218.1MB. Free memory was 130.2MB in the beginning and 119.7MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:25:31,702 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 524.66ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 70.3MB in the end (delta: 21.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.55ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 68.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 60.86ms. Allocated memory is still 117.4MB. Free memory was 68.1MB in the beginning and 66.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 674.91ms. Allocated memory is still 117.4MB. Free memory was 66.4MB in the beginning and 46.4MB in the end (delta: 20.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 10621.36ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 45.8MB in the beginning and 130.2MB in the end (delta: -84.4MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Witness Printer took 149.85ms. Allocated memory is still 218.1MB. Free memory was 130.2MB in the beginning and 119.7MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 700]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int data[10]; VAL [data={1:0}] [L685] 0 pthread_mutex_t m[10]; VAL [data={1:0}, m={2:0}] [L693] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=0, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=1, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=2, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=3, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=4, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=5, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=6, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=7, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=8, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=9, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L693] COND FALSE 0 !(i < 10) VAL [data={1:0}, i=10, m={2:0}] [L695] 0 int i = __VERIFIER_nondet_int(); VAL [data={1:0}, i=0, m={2:0}] [L696] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data={1:0}, m={2:0}] [L696] RET 0 assume_abort_if_not(0 <= i && i < 10) [L697] 0 pthread_t id; VAL [data={1:0}, i=0, m={2:0}] [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, data={1:0}, i=0, id=-1, m={2:0}] [L688] EXPR 1 data[4] VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L688] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L700] EXPR 0 data[4] VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, i=0, id=-1, m={2:0}] [L700] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, i=0, id=-1, m={2:0}] [L688] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L700] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, i=0, id=-1, m={2:0}] [L688] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L700] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, i=0, id=-1, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [688] and C: data[4]++ [700] - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 176 locations, 7 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: 10.3s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 503 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 366 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1294 IncrementalHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 52 mSDtfsCounter, 1294 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 794 GetRequests, 691 SyntacticMatches, 11 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1782occurred in iteration=7, InterpolantAutomatonStates: 81, 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: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 1370 NumberOfCodeBlocks, 1270 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1555 ConstructedInterpolants, 0 QuantifiedInterpolants, 2172 SizeOfPredicates, 22 NumberOfNonLiveVariables, 794 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 365/758 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-23 18:25:31,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_909d72eb-4098-4da3-a052-f489f9474750/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)