./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.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_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/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_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/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_3d173db1-f56b-4f8c-a514-eb9b781ae96d/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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:42:32,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:42:32,279 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-23 23:42:32,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:42:32,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:42:32,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:42:32,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:42:32,339 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:42:32,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:42:32,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:42:32,341 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:42:32,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:42:32,342 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:42:32,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:42:32,343 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:42:32,343 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:42:32,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:42:32,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:42:32,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:42:32,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:42:32,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:42:32,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:42:32,344 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-23 23:42:32,344 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 23:42:32,344 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:42:32,344 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:42:32,345 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:42:32,345 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:42:32,345 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:42:32,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:42:32,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:42:32,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:42:32,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:42:32,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:42:32,346 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:42:32,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:42:32,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:42:32,347 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:42:32,347 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:42:32,347 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:42:32,347 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:42:32,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:42:32,348 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:42:32,348 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:42:32,348 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:42:32,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:42:32,348 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_3d173db1-f56b-4f8c-a514-eb9b781ae96d/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 -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2024-11-23 23:42:32,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:42:32,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:42:32,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:42:32,749 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:42:32,750 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:42:32,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-23 23:42:35,988 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/data/c5dcd269e/115c4df1335841e6919eeb039574be35/FLAG9b1599164 [2024-11-23 23:42:36,398 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:42:36,399 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-23 23:42:36,418 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/data/c5dcd269e/115c4df1335841e6919eeb039574be35/FLAG9b1599164 [2024-11-23 23:42:36,440 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/data/c5dcd269e/115c4df1335841e6919eeb039574be35 [2024-11-23 23:42:36,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:42:36,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:42:36,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:42:36,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:42:36,452 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:42:36,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:42:36" (1/1) ... [2024-11-23 23:42:36,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7273d5d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:36, skipping insertion in model container [2024-11-23 23:42:36,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:42:36" (1/1) ... [2024-11-23 23:42:36,504 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:42:37,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:42:37,113 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:42:37,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:42:37,260 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:42:37,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37 WrapperNode [2024-11-23 23:42:37,261 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:42:37,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:42:37,262 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:42:37,262 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:42:37,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37" (1/1) ... [2024-11-23 23:42:37,282 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37" (1/1) ... [2024-11-23 23:42:37,312 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 150 [2024-11-23 23:42:37,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:42:37,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:42:37,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:42:37,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:42:37,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37" (1/1) ... [2024-11-23 23:42:37,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37" (1/1) ... [2024-11-23 23:42:37,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37" (1/1) ... [2024-11-23 23:42:37,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37" (1/1) ... [2024-11-23 23:42:37,334 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37" (1/1) ... [2024-11-23 23:42:37,336 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37" (1/1) ... [2024-11-23 23:42:37,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37" (1/1) ... [2024-11-23 23:42:37,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37" (1/1) ... [2024-11-23 23:42:37,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37" (1/1) ... [2024-11-23 23:42:37,348 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:42:37,349 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:42:37,349 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:42:37,349 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:42:37,350 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37" (1/1) ... [2024-11-23 23:42:37,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:42:37,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:42:37,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:42:37,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:42:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 23:42:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 23:42:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 23:42:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 23:42:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:42:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-23 23:42:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-23 23:42:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 23:42:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:42:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:42:37,407 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 23:42:37,576 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:42:37,579 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:42:37,996 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 23:42:37,996 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:42:38,047 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:42:38,048 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 23:42:38,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:42:38 BoogieIcfgContainer [2024-11-23 23:42:38,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:42:38,050 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:42:38,051 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:42:38,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:42:38,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:42:36" (1/3) ... [2024-11-23 23:42:38,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728268db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:42:38, skipping insertion in model container [2024-11-23 23:42:38,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:42:37" (2/3) ... [2024-11-23 23:42:38,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728268db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:42:38, skipping insertion in model container [2024-11-23 23:42:38,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:42:38" (3/3) ... [2024-11-23 23:42:38,058 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2024-11-23 23:42:38,079 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:42:38,080 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_06-tricky_address1.i that has 2 procedures, 158 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-23 23:42:38,080 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 23:42:38,145 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 23:42:38,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 161 transitions, 326 flow [2024-11-23 23:42:38,264 INFO L124 PetriNetUnfolderBase]: 4/160 cut-off events. [2024-11-23 23:42:38,267 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:42:38,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 160 events. 4/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2024-11-23 23:42:38,272 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 161 transitions, 326 flow [2024-11-23 23:42:38,277 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 160 transitions, 323 flow [2024-11-23 23:42:38,286 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:42:38,298 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;@67426fd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:42:38,298 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-23 23:42:38,327 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 23:42:38,327 INFO L124 PetriNetUnfolderBase]: 4/113 cut-off events. [2024-11-23 23:42:38,327 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:42:38,328 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:42:38,328 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] [2024-11-23 23:42:38,329 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:42:38,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:38,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1129090698, now seen corresponding path program 1 times [2024-11-23 23:42:38,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:42:38,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816264668] [2024-11-23 23:42:38,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:38,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:42:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:42:38,863 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 23:42:38,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:42:38,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816264668] [2024-11-23 23:42:38,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816264668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:42:38,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:42:38,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:42:38,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82403189] [2024-11-23 23:42:38,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:42:38,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:42:38,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:42:38,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:42:38,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:42:38,922 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2024-11-23 23:42:38,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 160 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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 23:42:38,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:42:38,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2024-11-23 23:42:38,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:42:39,006 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2024-11-23 23:42:39,006 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 23:42:39,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 221 events. 7/221 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 321 event pairs, 6 based on Foata normal form. 5/214 useless extension candidates. Maximal degree in co-relation 144. Up to 24 conditions per place. [2024-11-23 23:42:39,009 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 10 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2024-11-23 23:42:39,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 158 transitions, 343 flow [2024-11-23 23:42:39,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:42:39,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 23:42:39,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2024-11-23 23:42:39,025 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.94824016563147 [2024-11-23 23:42:39,029 INFO L175 Difference]: Start difference. First operand has 160 places, 160 transitions, 323 flow. Second operand 3 states and 458 transitions. [2024-11-23 23:42:39,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 158 transitions, 343 flow [2024-11-23 23:42:39,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 158 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 23:42:39,047 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 326 flow [2024-11-23 23:42:39,050 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2024-11-23 23:42:39,057 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 2 predicate places. [2024-11-23 23:42:39,057 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 326 flow [2024-11-23 23:42:39,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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 23:42:39,058 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:42:39,058 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] [2024-11-23 23:42:39,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:42:39,059 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:42:39,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:39,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1376573233, now seen corresponding path program 1 times [2024-11-23 23:42:39,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:42:39,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954676607] [2024-11-23 23:42:39,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:39,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:42:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:42:39,489 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 23:42:39,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:42:39,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954676607] [2024-11-23 23:42:39,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954676607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:42:39,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100869175] [2024-11-23 23:42:39,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:39,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:42:39,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:42:39,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:42:39,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:42:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:42:39,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:42:39,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:42:39,773 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 23:42:39,774 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:42:39,857 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 23:42:39,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100869175] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:42:39,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:42:39,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-23 23:42:39,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651223010] [2024-11-23 23:42:39,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:42:39,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:42:39,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:42:39,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:42:39,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:42:39,910 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-23 23:42:39,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 326 flow. Second operand has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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 23:42:39,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:42:39,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-23 23:42:39,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:42:40,152 INFO L124 PetriNetUnfolderBase]: 7/227 cut-off events. [2024-11-23 23:42:40,152 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 23:42:40,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 227 events. 7/227 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 316 event pairs, 6 based on Foata normal form. 2/218 useless extension candidates. Maximal degree in co-relation 191. Up to 24 conditions per place. [2024-11-23 23:42:40,157 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 14 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2024-11-23 23:42:40,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 390 flow [2024-11-23 23:42:40,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:42:40,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 23:42:40,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1321 transitions. [2024-11-23 23:42:40,166 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.911663216011042 [2024-11-23 23:42:40,166 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 326 flow. Second operand 9 states and 1321 transitions. [2024-11-23 23:42:40,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 390 flow [2024-11-23 23:42:40,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 23:42:40,173 INFO L231 Difference]: Finished difference. Result has 171 places, 163 transitions, 374 flow [2024-11-23 23:42:40,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=374, PETRI_PLACES=171, PETRI_TRANSITIONS=163} [2024-11-23 23:42:40,174 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2024-11-23 23:42:40,175 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 163 transitions, 374 flow [2024-11-23 23:42:40,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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 23:42:40,177 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:42:40,178 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] [2024-11-23 23:42:40,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:42:40,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:42:40,380 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:42:40,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:40,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1016235601, now seen corresponding path program 2 times [2024-11-23 23:42:40,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:42:40,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159849218] [2024-11-23 23:42:40,381 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:42:40,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:42:40,436 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:42:40,437 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:42:41,464 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 23:42:41,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:42:41,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159849218] [2024-11-23 23:42:41,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159849218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:42:41,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:42:41,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:42:41,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210945759] [2024-11-23 23:42:41,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:42:41,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:42:41,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:42:41,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:42:41,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:42:42,345 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 161 [2024-11-23 23:42:42,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 163 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 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 23:42:42,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:42:42,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 161 [2024-11-23 23:42:42,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:42:42,665 INFO L124 PetriNetUnfolderBase]: 103/540 cut-off events. [2024-11-23 23:42:42,665 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-23 23:42:42,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 540 events. 103/540 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2330 event pairs, 40 based on Foata normal form. 0/503 useless extension candidates. Maximal degree in co-relation 693. Up to 184 conditions per place. [2024-11-23 23:42:42,670 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 31 selfloop transitions, 22 changer transitions 0/192 dead transitions. [2024-11-23 23:42:42,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 192 transitions, 538 flow [2024-11-23 23:42:42,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:42:42,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 23:42:42,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 858 transitions. [2024-11-23 23:42:42,674 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8881987577639752 [2024-11-23 23:42:42,675 INFO L175 Difference]: Start difference. First operand has 171 places, 163 transitions, 374 flow. Second operand 6 states and 858 transitions. [2024-11-23 23:42:42,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 192 transitions, 538 flow [2024-11-23 23:42:42,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 192 transitions, 532 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-23 23:42:42,685 INFO L231 Difference]: Finished difference. Result has 180 places, 184 transitions, 518 flow [2024-11-23 23:42:42,685 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=518, PETRI_PLACES=180, PETRI_TRANSITIONS=184} [2024-11-23 23:42:42,686 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 20 predicate places. [2024-11-23 23:42:42,687 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 184 transitions, 518 flow [2024-11-23 23:42:42,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 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 23:42:42,688 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:42:42,688 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] [2024-11-23 23:42:42,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:42:42,689 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:42:42,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:42,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1659974846, now seen corresponding path program 1 times [2024-11-23 23:42:42,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:42:42,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957498034] [2024-11-23 23:42:42,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:42,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:42:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:42:42,993 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 23:42:42,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:42:42,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957498034] [2024-11-23 23:42:42,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957498034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:42:42,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690840513] [2024-11-23 23:42:42,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:42,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:42:42,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:42:42,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:42:43,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:42:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:42:43,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:42:43,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:42:43,213 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 23:42:43,213 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:42:43,348 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 23:42:43,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690840513] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:42:43,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:42:43,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-23 23:42:43,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119816073] [2024-11-23 23:42:43,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:42:43,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 23:42:43,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:42:43,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 23:42:43,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:42:43,402 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-23 23:42:43,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 184 transitions, 518 flow. Second operand has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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 23:42:43,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:42:43,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-23 23:42:43,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:42:43,810 INFO L124 PetriNetUnfolderBase]: 47/408 cut-off events. [2024-11-23 23:42:43,810 INFO L125 PetriNetUnfolderBase]: For 54/57 co-relation queries the response was YES. [2024-11-23 23:42:43,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 408 events. 47/408 cut-off events. For 54/57 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1240 event pairs, 11 based on Foata normal form. 4/396 useless extension candidates. Maximal degree in co-relation 506. Up to 51 conditions per place. [2024-11-23 23:42:43,817 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 18 selfloop transitions, 21 changer transitions 0/202 dead transitions. [2024-11-23 23:42:43,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 202 transitions, 684 flow [2024-11-23 23:42:43,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 23:42:43,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-23 23:42:43,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3067 transitions. [2024-11-23 23:42:43,827 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9071280686187518 [2024-11-23 23:42:43,828 INFO L175 Difference]: Start difference. First operand has 180 places, 184 transitions, 518 flow. Second operand 21 states and 3067 transitions. [2024-11-23 23:42:43,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 202 transitions, 684 flow [2024-11-23 23:42:43,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 202 transitions, 684 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 23:42:43,835 INFO L231 Difference]: Finished difference. Result has 205 places, 197 transitions, 648 flow [2024-11-23 23:42:43,836 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=648, PETRI_PLACES=205, PETRI_TRANSITIONS=197} [2024-11-23 23:42:43,836 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 45 predicate places. [2024-11-23 23:42:43,836 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 197 transitions, 648 flow [2024-11-23 23:42:43,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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 23:42:43,838 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:42:43,838 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] [2024-11-23 23:42:43,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:42:44,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:42:44,043 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:42:44,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:44,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1722331522, now seen corresponding path program 2 times [2024-11-23 23:42:44,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:42:44,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647281287] [2024-11-23 23:42:44,046 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:42:44,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:42:44,082 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:42:44,082 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:42:44,649 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 23:42:44,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:42:44,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647281287] [2024-11-23 23:42:44,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647281287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:42:44,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:42:44,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:42:44,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048998433] [2024-11-23 23:42:44,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:42:44,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:42:44,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:42:44,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:42:44,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:42:45,195 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 161 [2024-11-23 23:42:45,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 197 transitions, 648 flow. Second operand has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 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 23:42:45,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:42:45,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 161 [2024-11-23 23:42:45,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:42:45,649 INFO L124 PetriNetUnfolderBase]: 223/892 cut-off events. [2024-11-23 23:42:45,649 INFO L125 PetriNetUnfolderBase]: For 189/195 co-relation queries the response was YES. [2024-11-23 23:42:45,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1763 conditions, 892 events. 223/892 cut-off events. For 189/195 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4681 event pairs, 82 based on Foata normal form. 5/839 useless extension candidates. Maximal degree in co-relation 1566. Up to 407 conditions per place. [2024-11-23 23:42:45,661 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 53 selfloop transitions, 39 changer transitions 5/242 dead transitions. [2024-11-23 23:42:45,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 242 transitions, 962 flow [2024-11-23 23:42:45,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:42:45,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 23:42:45,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 844 transitions. [2024-11-23 23:42:45,665 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8737060041407867 [2024-11-23 23:42:45,665 INFO L175 Difference]: Start difference. First operand has 205 places, 197 transitions, 648 flow. Second operand 6 states and 844 transitions. [2024-11-23 23:42:45,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 242 transitions, 962 flow [2024-11-23 23:42:45,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 242 transitions, 938 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-23 23:42:45,676 INFO L231 Difference]: Finished difference. Result has 209 places, 233 transitions, 912 flow [2024-11-23 23:42:45,677 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=912, PETRI_PLACES=209, PETRI_TRANSITIONS=233} [2024-11-23 23:42:45,679 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 49 predicate places. [2024-11-23 23:42:45,679 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 233 transitions, 912 flow [2024-11-23 23:42:45,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 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 23:42:45,681 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:42:45,681 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 23:42:45,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:42:45,682 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:42:45,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:45,683 INFO L85 PathProgramCache]: Analyzing trace with hash -633472428, now seen corresponding path program 1 times [2024-11-23 23:42:45,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:42:45,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669666414] [2024-11-23 23:42:45,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:45,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:42:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:42:46,215 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 23:42:46,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:42:46,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669666414] [2024-11-23 23:42:46,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669666414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:42:46,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077475270] [2024-11-23 23:42:46,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:46,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:42:46,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:42:46,220 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:42:46,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:42:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:42:46,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 23:42:46,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:42:46,503 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 23:42:46,507 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:42:46,808 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 23:42:46,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077475270] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:42:46,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:42:46,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-23 23:42:46,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467227412] [2024-11-23 23:42:46,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:42:46,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-23 23:42:46,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:42:46,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-23 23:42:46,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:42:46,856 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-23 23:42:46,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 233 transitions, 912 flow. Second operand has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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 23:42:46,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:42:46,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-23 23:42:46,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:42:47,356 INFO L124 PetriNetUnfolderBase]: 117/655 cut-off events. [2024-11-23 23:42:47,356 INFO L125 PetriNetUnfolderBase]: For 327/332 co-relation queries the response was YES. [2024-11-23 23:42:47,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1391 conditions, 655 events. 117/655 cut-off events. For 327/332 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2894 event pairs, 15 based on Foata normal form. 3/630 useless extension candidates. Maximal degree in co-relation 1115. Up to 118 conditions per place. [2024-11-23 23:42:47,361 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 21 selfloop transitions, 30 changer transitions 0/250 dead transitions. [2024-11-23 23:42:47,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 250 transitions, 1136 flow [2024-11-23 23:42:47,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-23 23:42:47,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-23 23:42:47,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4374 transitions. [2024-11-23 23:42:47,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9055900621118013 [2024-11-23 23:42:47,371 INFO L175 Difference]: Start difference. First operand has 209 places, 233 transitions, 912 flow. Second operand 30 states and 4374 transitions. [2024-11-23 23:42:47,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 250 transitions, 1136 flow [2024-11-23 23:42:47,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 250 transitions, 1104 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-11-23 23:42:47,380 INFO L231 Difference]: Finished difference. Result has 241 places, 243 transitions, 1032 flow [2024-11-23 23:42:47,381 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1032, PETRI_PLACES=241, PETRI_TRANSITIONS=243} [2024-11-23 23:42:47,381 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 81 predicate places. [2024-11-23 23:42:47,382 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 243 transitions, 1032 flow [2024-11-23 23:42:47,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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 23:42:47,383 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:42:47,384 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 23:42:47,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:42:47,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:42:47,588 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:42:47,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:47,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1687787697, now seen corresponding path program 2 times [2024-11-23 23:42:47,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:42:47,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798702343] [2024-11-23 23:42:47,589 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:42:47,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:42:47,619 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:42:47,620 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:42:48,058 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 23:42:48,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:42:48,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798702343] [2024-11-23 23:42:48,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798702343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:42:48,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:42:48,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:42:48,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886433779] [2024-11-23 23:42:48,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:42:48,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:42:48,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:42:48,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:42:48,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:42:48,203 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2024-11-23 23:42:48,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 243 transitions, 1032 flow. Second operand has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 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 23:42:48,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:42:48,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2024-11-23 23:42:48,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:42:48,525 INFO L124 PetriNetUnfolderBase]: 212/925 cut-off events. [2024-11-23 23:42:48,525 INFO L125 PetriNetUnfolderBase]: For 576/620 co-relation queries the response was YES. [2024-11-23 23:42:48,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 925 events. 212/925 cut-off events. For 576/620 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4921 event pairs, 40 based on Foata normal form. 1/908 useless extension candidates. Maximal degree in co-relation 1908. Up to 338 conditions per place. [2024-11-23 23:42:48,533 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 72 selfloop transitions, 40 changer transitions 0/282 dead transitions. [2024-11-23 23:42:48,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 282 transitions, 1440 flow [2024-11-23 23:42:48,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:42:48,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 23:42:48,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2024-11-23 23:42:48,535 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9037267080745341 [2024-11-23 23:42:48,535 INFO L175 Difference]: Start difference. First operand has 241 places, 243 transitions, 1032 flow. Second operand 6 states and 873 transitions. [2024-11-23 23:42:48,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 282 transitions, 1440 flow [2024-11-23 23:42:48,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 282 transitions, 1394 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-23 23:42:48,547 INFO L231 Difference]: Finished difference. Result has 233 places, 274 transitions, 1354 flow [2024-11-23 23:42:48,547 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1354, PETRI_PLACES=233, PETRI_TRANSITIONS=274} [2024-11-23 23:42:48,548 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 73 predicate places. [2024-11-23 23:42:48,548 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 274 transitions, 1354 flow [2024-11-23 23:42:48,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 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 23:42:48,549 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:42:48,549 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, 1, 1, 1] [2024-11-23 23:42:48,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:42:48,549 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:42:48,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:48,551 INFO L85 PathProgramCache]: Analyzing trace with hash 82185300, now seen corresponding path program 1 times [2024-11-23 23:42:48,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:42:48,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631622043] [2024-11-23 23:42:48,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:48,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:42:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:42:49,174 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 23:42:49,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:42:49,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631622043] [2024-11-23 23:42:49,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631622043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:42:49,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:42:49,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:42:49,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072890348] [2024-11-23 23:42:49,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:42:49,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:42:49,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:42:49,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:42:49,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:42:49,304 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 161 [2024-11-23 23:42:49,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 274 transitions, 1354 flow. Second operand has 6 states, 6 states have (on average 133.33333333333334) internal successors, (800), 6 states have internal predecessors, (800), 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 23:42:49,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:42:49,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 161 [2024-11-23 23:42:49,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:42:49,757 INFO L124 PetriNetUnfolderBase]: 361/1326 cut-off events. [2024-11-23 23:42:49,758 INFO L125 PetriNetUnfolderBase]: For 1444/1472 co-relation queries the response was YES. [2024-11-23 23:42:49,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3665 conditions, 1326 events. 361/1326 cut-off events. For 1444/1472 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7954 event pairs, 87 based on Foata normal form. 2/1292 useless extension candidates. Maximal degree in co-relation 3405. Up to 610 conditions per place. [2024-11-23 23:42:49,768 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 100 selfloop transitions, 64 changer transitions 10/335 dead transitions. [2024-11-23 23:42:49,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 335 transitions, 2042 flow [2024-11-23 23:42:49,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:42:49,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 23:42:49,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 859 transitions. [2024-11-23 23:42:49,771 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8892339544513458 [2024-11-23 23:42:49,771 INFO L175 Difference]: Start difference. First operand has 233 places, 274 transitions, 1354 flow. Second operand 6 states and 859 transitions. [2024-11-23 23:42:49,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 335 transitions, 2042 flow [2024-11-23 23:42:49,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 335 transitions, 2024 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-23 23:42:49,793 INFO L231 Difference]: Finished difference. Result has 243 places, 321 transitions, 1922 flow [2024-11-23 23:42:49,793 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1922, PETRI_PLACES=243, PETRI_TRANSITIONS=321} [2024-11-23 23:42:49,795 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 83 predicate places. [2024-11-23 23:42:49,796 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 321 transitions, 1922 flow [2024-11-23 23:42:49,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.33333333333334) internal successors, (800), 6 states have internal predecessors, (800), 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 23:42:49,796 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:42:49,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:42:49,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:42:49,797 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:42:49,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:49,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1223242866, now seen corresponding path program 1 times [2024-11-23 23:42:49,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:42:49,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278855440] [2024-11-23 23:42:49,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:49,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:42:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:43:09,067 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 23:43:09,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:43:09,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278855440] [2024-11-23 23:43:09,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278855440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:43:09,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:43:09,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 23:43:09,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829942154] [2024-11-23 23:43:09,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:09,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 23:43:09,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:43:09,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 23:43:09,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:43:14,425 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 161 [2024-11-23 23:43:14,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 321 transitions, 1922 flow. Second operand has 17 states, 17 states have (on average 113.94117647058823) internal successors, (1937), 17 states have internal predecessors, (1937), 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 23:43:14,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:43:14,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 161 [2024-11-23 23:43:14,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:43:17,580 INFO L124 PetriNetUnfolderBase]: 566/1804 cut-off events. [2024-11-23 23:43:17,580 INFO L125 PetriNetUnfolderBase]: For 3423/3503 co-relation queries the response was YES. [2024-11-23 23:43:17,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5866 conditions, 1804 events. 566/1804 cut-off events. For 3423/3503 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 11264 event pairs, 32 based on Foata normal form. 37/1829 useless extension candidates. Maximal degree in co-relation 5589. Up to 562 conditions per place. [2024-11-23 23:43:17,600 INFO L140 encePairwiseOnDemand]: 131/161 looper letters, 227 selfloop transitions, 87 changer transitions 73/530 dead transitions. [2024-11-23 23:43:17,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 530 transitions, 4108 flow [2024-11-23 23:43:17,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-23 23:43:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-23 23:43:17,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2892 transitions. [2024-11-23 23:43:17,609 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7484472049689441 [2024-11-23 23:43:17,609 INFO L175 Difference]: Start difference. First operand has 243 places, 321 transitions, 1922 flow. Second operand 24 states and 2892 transitions. [2024-11-23 23:43:17,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 530 transitions, 4108 flow [2024-11-23 23:43:17,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 530 transitions, 4022 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-23 23:43:17,647 INFO L231 Difference]: Finished difference. Result has 274 places, 358 transitions, 2488 flow [2024-11-23 23:43:17,649 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1848, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2488, PETRI_PLACES=274, PETRI_TRANSITIONS=358} [2024-11-23 23:43:17,650 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 114 predicate places. [2024-11-23 23:43:17,650 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 358 transitions, 2488 flow [2024-11-23 23:43:17,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 113.94117647058823) internal successors, (1937), 17 states have internal predecessors, (1937), 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 23:43:17,651 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:43:17,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:43:17,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:43:17,652 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:43:17,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:43:17,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1348389900, now seen corresponding path program 2 times [2024-11-23 23:43:17,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:43:17,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174854758] [2024-11-23 23:43:17,655 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:43:17,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:43:17,719 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:43:17,719 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:43:22,958 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 23:43:22,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:43:22,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174854758] [2024-11-23 23:43:22,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174854758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:43:22,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:43:22,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 23:43:22,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951507519] [2024-11-23 23:43:22,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:22,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:43:22,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:43:22,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:43:22,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:43:26,544 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 161 [2024-11-23 23:43:26,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 358 transitions, 2488 flow. Second operand has 13 states, 13 states have (on average 120.0) internal successors, (1560), 13 states have internal predecessors, (1560), 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 23:43:26,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:43:26,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 161 [2024-11-23 23:43:26,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:43:28,237 INFO L124 PetriNetUnfolderBase]: 456/1552 cut-off events. [2024-11-23 23:43:28,237 INFO L125 PetriNetUnfolderBase]: For 4321/4450 co-relation queries the response was YES. [2024-11-23 23:43:28,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5962 conditions, 1552 events. 456/1552 cut-off events. For 4321/4450 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9614 event pairs, 80 based on Foata normal form. 63/1598 useless extension candidates. Maximal degree in co-relation 5675. Up to 662 conditions per place. [2024-11-23 23:43:28,257 INFO L140 encePairwiseOnDemand]: 135/161 looper letters, 174 selfloop transitions, 89 changer transitions 32/441 dead transitions. [2024-11-23 23:43:28,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 441 transitions, 3707 flow [2024-11-23 23:43:28,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:43:28,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-23 23:43:28,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1786 transitions. [2024-11-23 23:43:28,263 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7923691215616682 [2024-11-23 23:43:28,263 INFO L175 Difference]: Start difference. First operand has 274 places, 358 transitions, 2488 flow. Second operand 14 states and 1786 transitions. [2024-11-23 23:43:28,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 441 transitions, 3707 flow [2024-11-23 23:43:28,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 441 transitions, 3661 flow, removed 12 selfloop flow, removed 9 redundant places. [2024-11-23 23:43:28,317 INFO L231 Difference]: Finished difference. Result has 276 places, 362 transitions, 2698 flow [2024-11-23 23:43:28,318 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=2447, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2698, PETRI_PLACES=276, PETRI_TRANSITIONS=362} [2024-11-23 23:43:28,319 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 116 predicate places. [2024-11-23 23:43:28,319 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 362 transitions, 2698 flow [2024-11-23 23:43:28,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 120.0) internal successors, (1560), 13 states have internal predecessors, (1560), 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 23:43:28,320 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:43:28,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:43:28,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:43:28,321 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:43:28,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:43:28,323 INFO L85 PathProgramCache]: Analyzing trace with hash 563134084, now seen corresponding path program 3 times [2024-11-23 23:43:28,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:43:28,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276400459] [2024-11-23 23:43:28,324 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:43:28,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:43:28,355 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 23:43:28,355 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:43:29,402 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 23:43:29,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:43:29,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276400459] [2024-11-23 23:43:29,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276400459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:43:29,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:43:29,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:43:29,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512619857] [2024-11-23 23:43:29,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:29,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:43:29,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:43:29,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:43:29,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:43:30,965 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-23 23:43:30,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 362 transitions, 2698 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:43:30,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:43:30,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-23 23:43:30,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:43:32,170 INFO L124 PetriNetUnfolderBase]: 780/2434 cut-off events. [2024-11-23 23:43:32,170 INFO L125 PetriNetUnfolderBase]: For 9350/9485 co-relation queries the response was YES. [2024-11-23 23:43:32,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10410 conditions, 2434 events. 780/2434 cut-off events. For 9350/9485 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 17650 event pairs, 58 based on Foata normal form. 59/2460 useless extension candidates. Maximal degree in co-relation 10120. Up to 632 conditions per place. [2024-11-23 23:43:32,197 INFO L140 encePairwiseOnDemand]: 143/161 looper letters, 348 selfloop transitions, 95 changer transitions 12/611 dead transitions. [2024-11-23 23:43:32,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 611 transitions, 6201 flow [2024-11-23 23:43:32,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:43:32,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-23 23:43:32,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1509 transitions. [2024-11-23 23:43:32,200 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8520609824957651 [2024-11-23 23:43:32,200 INFO L175 Difference]: Start difference. First operand has 276 places, 362 transitions, 2698 flow. Second operand 11 states and 1509 transitions. [2024-11-23 23:43:32,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 611 transitions, 6201 flow [2024-11-23 23:43:32,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 611 transitions, 6039 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-11-23 23:43:32,277 INFO L231 Difference]: Finished difference. Result has 284 places, 442 transitions, 4094 flow [2024-11-23 23:43:32,277 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=2616, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4094, PETRI_PLACES=284, PETRI_TRANSITIONS=442} [2024-11-23 23:43:32,278 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 124 predicate places. [2024-11-23 23:43:32,278 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 442 transitions, 4094 flow [2024-11-23 23:43:32,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:43:32,278 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:43:32,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:43:32,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:43:32,279 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:43:32,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:43:32,280 INFO L85 PathProgramCache]: Analyzing trace with hash -575987128, now seen corresponding path program 4 times [2024-11-23 23:43:32,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:43:32,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114949725] [2024-11-23 23:43:32,281 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:43:32,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:43:32,350 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:43:32,350 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:43:33,988 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-23 23:43:33,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:43:33,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114949725] [2024-11-23 23:43:33,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114949725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:43:33,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:43:33,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 23:43:33,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000198962] [2024-11-23 23:43:33,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:33,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:43:33,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:43:33,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:43:33,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:43:36,577 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2024-11-23 23:43:36,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 442 transitions, 4094 flow. Second operand has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 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 23:43:36,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:43:36,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2024-11-23 23:43:36,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:43:38,326 INFO L124 PetriNetUnfolderBase]: 860/2732 cut-off events. [2024-11-23 23:43:38,326 INFO L125 PetriNetUnfolderBase]: For 13436/13561 co-relation queries the response was YES. [2024-11-23 23:43:38,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11980 conditions, 2732 events. 860/2732 cut-off events. For 13436/13561 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 20286 event pairs, 73 based on Foata normal form. 48/2755 useless extension candidates. Maximal degree in co-relation 11683. Up to 658 conditions per place. [2024-11-23 23:43:38,355 INFO L140 encePairwiseOnDemand]: 136/161 looper letters, 406 selfloop transitions, 115 changer transitions 21/691 dead transitions. [2024-11-23 23:43:38,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 691 transitions, 7540 flow [2024-11-23 23:43:38,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:43:38,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-23 23:43:38,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2108 transitions. [2024-11-23 23:43:38,363 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8183229813664596 [2024-11-23 23:43:38,363 INFO L175 Difference]: Start difference. First operand has 284 places, 442 transitions, 4094 flow. Second operand 16 states and 2108 transitions. [2024-11-23 23:43:38,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 691 transitions, 7540 flow [2024-11-23 23:43:38,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 691 transitions, 7492 flow, removed 24 selfloop flow, removed 0 redundant places. [2024-11-23 23:43:38,493 INFO L231 Difference]: Finished difference. Result has 305 places, 472 transitions, 4855 flow [2024-11-23 23:43:38,496 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=4046, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4855, PETRI_PLACES=305, PETRI_TRANSITIONS=472} [2024-11-23 23:43:38,499 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 145 predicate places. [2024-11-23 23:43:38,499 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 472 transitions, 4855 flow [2024-11-23 23:43:38,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 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 23:43:38,501 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:43:38,501 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:43:38,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:43:38,501 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:43:38,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:43:38,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1952030626, now seen corresponding path program 5 times [2024-11-23 23:43:38,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:43:38,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130835223] [2024-11-23 23:43:38,504 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 23:43:38,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:43:38,640 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 23:43:38,640 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:43:44,955 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:43:44,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:43:44,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130835223] [2024-11-23 23:43:44,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130835223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:43:44,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820863499] [2024-11-23 23:43:44,955 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 23:43:44,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:43:44,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:43:44,957 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:43:44,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:43:45,123 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 23:43:45,123 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:43:45,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-23 23:43:45,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:43:45,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-23 23:43:45,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-23 23:43:45,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-23 23:43:45,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-23 23:43:45,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-23 23:43:46,067 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-23 23:43:46,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-23 23:43:46,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:43:46,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:43:46,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:43:46,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:43:46,313 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:43:46,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-11-23 23:43:46,573 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 23:43:46,573 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:43:47,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-11-23 23:43:47,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2024-11-23 23:43:47,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2024-11-23 23:43:47,813 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-23 23:43:47,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820863499] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:43:47,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:43:47,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [31, 25] total 47 [2024-11-23 23:43:47,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421492302] [2024-11-23 23:43:47,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:47,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:43:47,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:43:47,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:43:47,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=2079, Unknown=0, NotChecked=0, Total=2256 [2024-11-23 23:43:51,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-11-23 23:43:51,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 472 transitions, 4855 flow. Second operand has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 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 23:43:51,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:43:51,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-11-23 23:43:51,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:43:54,365 INFO L124 PetriNetUnfolderBase]: 1329/4017 cut-off events. [2024-11-23 23:43:54,366 INFO L125 PetriNetUnfolderBase]: For 26849/27145 co-relation queries the response was YES. [2024-11-23 23:43:54,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19932 conditions, 4017 events. 1329/4017 cut-off events. For 26849/27145 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 32960 event pairs, 134 based on Foata normal form. 117/4094 useless extension candidates. Maximal degree in co-relation 19627. Up to 1142 conditions per place. [2024-11-23 23:43:54,411 INFO L140 encePairwiseOnDemand]: 133/161 looper letters, 359 selfloop transitions, 278 changer transitions 14/804 dead transitions. [2024-11-23 23:43:54,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 804 transitions, 10376 flow [2024-11-23 23:43:54,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 23:43:54,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-23 23:43:54,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2779 transitions. [2024-11-23 23:43:54,417 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8219461697722568 [2024-11-23 23:43:54,417 INFO L175 Difference]: Start difference. First operand has 305 places, 472 transitions, 4855 flow. Second operand 21 states and 2779 transitions. [2024-11-23 23:43:54,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 804 transitions, 10376 flow [2024-11-23 23:43:54,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 804 transitions, 10156 flow, removed 99 selfloop flow, removed 7 redundant places. [2024-11-23 23:43:54,627 INFO L231 Difference]: Finished difference. Result has 333 places, 646 transitions, 8562 flow [2024-11-23 23:43:54,628 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=4700, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=8562, PETRI_PLACES=333, PETRI_TRANSITIONS=646} [2024-11-23 23:43:54,628 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 173 predicate places. [2024-11-23 23:43:54,628 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 646 transitions, 8562 flow [2024-11-23 23:43:54,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 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 23:43:54,629 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:43:54,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:43:54,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 23:43:54,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-23 23:43:54,830 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:43:54,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:43:54,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1555694604, now seen corresponding path program 1 times [2024-11-23 23:43:54,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:43:54,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378242192] [2024-11-23 23:43:54,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:43:54,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:43:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:01,620 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:44:01,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:01,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378242192] [2024-11-23 23:44:01,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378242192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:44:01,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151353873] [2024-11-23 23:44:01,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:01,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:44:01,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:44:01,625 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:44:01,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:44:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:01,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-23 23:44:01,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:44:02,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-23 23:44:02,414 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-23 23:44:02,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-23 23:44:02,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-23 23:44:02,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-23 23:44:02,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-23 23:44:02,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-23 23:44:03,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:44:03,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:44:03,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:44:03,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:44:03,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 47 [2024-11-23 23:44:03,095 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 23:44:03,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:44:04,695 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-23 23:44:04,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151353873] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:44:04,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:44:04,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12, 25] total 43 [2024-11-23 23:44:04,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413544006] [2024-11-23 23:44:04,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:04,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:44:04,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:04,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:44:04,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1693, Unknown=0, NotChecked=0, Total=1892 [2024-11-23 23:44:13,805 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 161 [2024-11-23 23:44:13,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 646 transitions, 8562 flow. Second operand has 11 states, 11 states have (on average 132.36363636363637) internal successors, (1456), 11 states have internal predecessors, (1456), 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 23:44:13,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:44:13,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 161 [2024-11-23 23:44:13,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:44:16,602 INFO L124 PetriNetUnfolderBase]: 1063/3465 cut-off events. [2024-11-23 23:44:16,602 INFO L125 PetriNetUnfolderBase]: For 33914/34231 co-relation queries the response was YES. [2024-11-23 23:44:16,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19173 conditions, 3465 events. 1063/3465 cut-off events. For 33914/34231 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 28646 event pairs, 45 based on Foata normal form. 91/3534 useless extension candidates. Maximal degree in co-relation 18854. Up to 805 conditions per place. [2024-11-23 23:44:16,650 INFO L140 encePairwiseOnDemand]: 144/161 looper letters, 408 selfloop transitions, 149 changer transitions 39/821 dead transitions. [2024-11-23 23:44:16,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 821 transitions, 11688 flow [2024-11-23 23:44:16,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 23:44:16,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-23 23:44:16,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2491 transitions. [2024-11-23 23:44:16,654 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8595583160800552 [2024-11-23 23:44:16,654 INFO L175 Difference]: Start difference. First operand has 333 places, 646 transitions, 8562 flow. Second operand 18 states and 2491 transitions. [2024-11-23 23:44:16,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 821 transitions, 11688 flow [2024-11-23 23:44:16,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 821 transitions, 11522 flow, removed 83 selfloop flow, removed 0 redundant places. [2024-11-23 23:44:16,944 INFO L231 Difference]: Finished difference. Result has 358 places, 707 transitions, 9852 flow [2024-11-23 23:44:16,945 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=8444, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=9852, PETRI_PLACES=358, PETRI_TRANSITIONS=707} [2024-11-23 23:44:16,947 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 198 predicate places. [2024-11-23 23:44:16,947 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 707 transitions, 9852 flow [2024-11-23 23:44:16,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 132.36363636363637) internal successors, (1456), 11 states have internal predecessors, (1456), 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 23:44:16,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:44:16,948 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:16,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 23:44:17,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-23 23:44:17,149 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:44:17,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:17,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1950771942, now seen corresponding path program 6 times [2024-11-23 23:44:17,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:17,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878058854] [2024-11-23 23:44:17,151 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 23:44:17,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:17,175 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-23 23:44:17,179 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:44:17,959 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:44:17,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:17,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878058854] [2024-11-23 23:44:17,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878058854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:17,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:17,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:44:17,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866095466] [2024-11-23 23:44:17,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:17,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:44:17,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:17,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:44:17,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:44:19,253 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-23 23:44:19,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 707 transitions, 9852 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:44:19,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:44:19,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-23 23:44:19,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:44:20,854 INFO L124 PetriNetUnfolderBase]: 1277/3907 cut-off events. [2024-11-23 23:44:20,854 INFO L125 PetriNetUnfolderBase]: For 41665/42036 co-relation queries the response was YES. [2024-11-23 23:44:20,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23171 conditions, 3907 events. 1277/3907 cut-off events. For 41665/42036 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 32209 event pairs, 160 based on Foata normal form. 196/4042 useless extension candidates. Maximal degree in co-relation 22842. Up to 1814 conditions per place. [2024-11-23 23:44:20,910 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 283 selfloop transitions, 311 changer transitions 14/772 dead transitions. [2024-11-23 23:44:20,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 772 transitions, 12068 flow [2024-11-23 23:44:20,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:44:20,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-23 23:44:20,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1627 transitions. [2024-11-23 23:44:20,913 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8421325051759835 [2024-11-23 23:44:20,913 INFO L175 Difference]: Start difference. First operand has 358 places, 707 transitions, 9852 flow. Second operand 12 states and 1627 transitions. [2024-11-23 23:44:20,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 772 transitions, 12068 flow [2024-11-23 23:44:21,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 772 transitions, 11952 flow, removed 58 selfloop flow, removed 2 redundant places. [2024-11-23 23:44:21,284 INFO L231 Difference]: Finished difference. Result has 367 places, 726 transitions, 10851 flow [2024-11-23 23:44:21,284 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=9744, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=292, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10851, PETRI_PLACES=367, PETRI_TRANSITIONS=726} [2024-11-23 23:44:21,285 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 207 predicate places. [2024-11-23 23:44:21,285 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 726 transitions, 10851 flow [2024-11-23 23:44:21,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:44:21,286 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:44:21,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:21,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:44:21,287 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:44:21,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:21,288 INFO L85 PathProgramCache]: Analyzing trace with hash -863028476, now seen corresponding path program 7 times [2024-11-23 23:44:21,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:21,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843492670] [2024-11-23 23:44:21,288 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 23:44:21,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:34,586 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-23 23:44:34,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:34,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843492670] [2024-11-23 23:44:34,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843492670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:44:34,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578335149] [2024-11-23 23:44:34,587 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 23:44:34,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:44:34,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:44:34,589 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:44:34,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:44:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:44:34,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-23 23:44:34,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:44:34,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-23 23:44:35,065 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-23 23:44:35,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-23 23:44:35,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-23 23:44:35,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-23 23:44:35,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-23 23:44:35,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-23 23:44:35,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:44:35,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:44:35,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:44:35,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:44:35,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:44:35,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-11-23 23:44:35,563 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-23 23:44:35,564 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:44:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:44:36,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578335149] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:44:36,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:44:36,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 15] total 36 [2024-11-23 23:44:36,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415505435] [2024-11-23 23:44:36,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:36,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:44:36,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:36,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:44:36,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1146, Unknown=0, NotChecked=0, Total=1332 [2024-11-23 23:44:44,404 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-11-23 23:44:44,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 726 transitions, 10851 flow. Second operand has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 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 23:44:44,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:44:44,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-11-23 23:44:44,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:44:48,133 INFO L124 PetriNetUnfolderBase]: 1264/3894 cut-off events. [2024-11-23 23:44:48,133 INFO L125 PetriNetUnfolderBase]: For 46013/46313 co-relation queries the response was YES. [2024-11-23 23:44:48,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23877 conditions, 3894 events. 1264/3894 cut-off events. For 46013/46313 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 31999 event pairs, 102 based on Foata normal form. 154/4003 useless extension candidates. Maximal degree in co-relation 23544. Up to 1228 conditions per place. [2024-11-23 23:44:48,169 INFO L140 encePairwiseOnDemand]: 142/161 looper letters, 494 selfloop transitions, 231 changer transitions 19/903 dead transitions. [2024-11-23 23:44:48,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 903 transitions, 14459 flow [2024-11-23 23:44:48,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:44:48,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-23 23:44:48,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1651 transitions. [2024-11-23 23:44:48,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8545548654244306 [2024-11-23 23:44:48,172 INFO L175 Difference]: Start difference. First operand has 367 places, 726 transitions, 10851 flow. Second operand 12 states and 1651 transitions. [2024-11-23 23:44:48,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 903 transitions, 14459 flow [2024-11-23 23:44:48,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 903 transitions, 13836 flow, removed 45 selfloop flow, removed 6 redundant places. [2024-11-23 23:44:48,436 INFO L231 Difference]: Finished difference. Result has 376 places, 760 transitions, 11589 flow [2024-11-23 23:44:48,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=10289, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=726, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11589, PETRI_PLACES=376, PETRI_TRANSITIONS=760} [2024-11-23 23:44:48,437 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 216 predicate places. [2024-11-23 23:44:48,437 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 760 transitions, 11589 flow [2024-11-23 23:44:48,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 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 23:44:48,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:44:48,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:48,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 23:44:48,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-23 23:44:48,638 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:44:48,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:48,639 INFO L85 PathProgramCache]: Analyzing trace with hash -96084428, now seen corresponding path program 8 times [2024-11-23 23:44:48,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:48,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541743235] [2024-11-23 23:44:48,640 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:44:48,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:48,660 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:44:48,661 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:44:49,392 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:44:49,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:49,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541743235] [2024-11-23 23:44:49,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541743235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:49,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:49,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:44:49,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213399218] [2024-11-23 23:44:49,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:49,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:44:49,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:49,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:44:49,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:44:50,904 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-23 23:44:50,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 760 transitions, 11589 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:44:50,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:44:50,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-23 23:44:50,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:44:52,911 INFO L124 PetriNetUnfolderBase]: 1284/3959 cut-off events. [2024-11-23 23:44:52,911 INFO L125 PetriNetUnfolderBase]: For 50399/50687 co-relation queries the response was YES. [2024-11-23 23:44:52,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24882 conditions, 3959 events. 1284/3959 cut-off events. For 50399/50687 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 32904 event pairs, 170 based on Foata normal form. 151/4050 useless extension candidates. Maximal degree in co-relation 24546. Up to 1813 conditions per place. [2024-11-23 23:44:52,946 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 327 selfloop transitions, 333 changer transitions 13/837 dead transitions. [2024-11-23 23:44:52,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 837 transitions, 14277 flow [2024-11-23 23:44:52,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:44:52,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-23 23:44:52,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1874 transitions. [2024-11-23 23:44:52,948 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.831410825199645 [2024-11-23 23:44:52,948 INFO L175 Difference]: Start difference. First operand has 376 places, 760 transitions, 11589 flow. Second operand 14 states and 1874 transitions. [2024-11-23 23:44:52,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 837 transitions, 14277 flow [2024-11-23 23:44:53,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 837 transitions, 14073 flow, removed 35 selfloop flow, removed 6 redundant places. [2024-11-23 23:44:53,212 INFO L231 Difference]: Finished difference. Result has 390 places, 796 transitions, 13056 flow [2024-11-23 23:44:53,213 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=11406, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=760, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=303, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13056, PETRI_PLACES=390, PETRI_TRANSITIONS=796} [2024-11-23 23:44:53,213 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 230 predicate places. [2024-11-23 23:44:53,213 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 796 transitions, 13056 flow [2024-11-23 23:44:53,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:44:53,214 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:44:53,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:53,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:44:53,214 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:44:53,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:53,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1826914000, now seen corresponding path program 9 times [2024-11-23 23:44:53,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:53,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698439282] [2024-11-23 23:44:53,216 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:44:53,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:53,245 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 23:44:53,246 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:44:54,355 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:44:54,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:54,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698439282] [2024-11-23 23:44:54,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698439282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:44:54,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:44:54,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:44:54,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769090960] [2024-11-23 23:44:54,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:44:54,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:44:54,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:44:54,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:44:54,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:44:55,916 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-11-23 23:44:55,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 796 transitions, 13056 flow. Second operand has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 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 23:44:55,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:44:55,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-11-23 23:44:55,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:44:57,619 INFO L124 PetriNetUnfolderBase]: 1361/4048 cut-off events. [2024-11-23 23:44:57,620 INFO L125 PetriNetUnfolderBase]: For 54512/54804 co-relation queries the response was YES. [2024-11-23 23:44:57,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26275 conditions, 4048 events. 1361/4048 cut-off events. For 54512/54804 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 33271 event pairs, 139 based on Foata normal form. 131/4129 useless extension candidates. Maximal degree in co-relation 25933. Up to 1354 conditions per place. [2024-11-23 23:44:57,682 INFO L140 encePairwiseOnDemand]: 140/161 looper letters, 502 selfloop transitions, 280 changer transitions 24/962 dead transitions. [2024-11-23 23:44:57,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 962 transitions, 16726 flow [2024-11-23 23:44:57,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:44:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-23 23:44:57,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1519 transitions. [2024-11-23 23:44:57,684 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.857707509881423 [2024-11-23 23:44:57,684 INFO L175 Difference]: Start difference. First operand has 390 places, 796 transitions, 13056 flow. Second operand 11 states and 1519 transitions. [2024-11-23 23:44:57,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 962 transitions, 16726 flow [2024-11-23 23:44:57,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 962 transitions, 16328 flow, removed 97 selfloop flow, removed 4 redundant places. [2024-11-23 23:44:57,972 INFO L231 Difference]: Finished difference. Result has 401 places, 818 transitions, 13954 flow [2024-11-23 23:44:57,972 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=12670, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=796, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13954, PETRI_PLACES=401, PETRI_TRANSITIONS=818} [2024-11-23 23:44:57,973 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 241 predicate places. [2024-11-23 23:44:57,973 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 818 transitions, 13954 flow [2024-11-23 23:44:57,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 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 23:44:57,973 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:44:57,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:44:57,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:44:57,973 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:44:57,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:57,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1609783948, now seen corresponding path program 10 times [2024-11-23 23:44:57,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:44:57,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536691090] [2024-11-23 23:44:57,975 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:44:57,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:44:58,007 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:44:58,007 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:44:59,266 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-23 23:44:59,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:44:59,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536691090] [2024-11-23 23:44:59,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536691090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:44:59,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958803731] [2024-11-23 23:44:59,266 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:44:59,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:44:59,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:44:59,268 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:44:59,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 23:44:59,453 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:44:59,453 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:44:59,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-23 23:44:59,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:44:59,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-23 23:44:59,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-23 23:45:00,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-23 23:45:00,184 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-23 23:45:00,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-23 23:45:00,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-23 23:45:00,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-23 23:45:00,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:45:00,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:45:00,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:45:00,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:45:00,505 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:45:00,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-11-23 23:45:00,523 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-23 23:45:00,523 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:45:01,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-11-23 23:45:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:45:02,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958803731] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:45:02,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:45:02,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 25] total 45 [2024-11-23 23:45:02,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75023423] [2024-11-23 23:45:02,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:45:02,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:45:02,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:45:02,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:45:02,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1884, Unknown=0, NotChecked=0, Total=2070 [2024-11-23 23:45:10,299 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-11-23 23:45:10,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 818 transitions, 13954 flow. Second operand has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 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 23:45:10,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:45:10,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-11-23 23:45:10,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:45:14,557 INFO L124 PetriNetUnfolderBase]: 1368/4207 cut-off events. [2024-11-23 23:45:14,557 INFO L125 PetriNetUnfolderBase]: For 64632/64974 co-relation queries the response was YES. [2024-11-23 23:45:14,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28190 conditions, 4207 events. 1368/4207 cut-off events. For 64632/64974 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 35362 event pairs, 143 based on Foata normal form. 128/4283 useless extension candidates. Maximal degree in co-relation 27845. Up to 1717 conditions per place. [2024-11-23 23:45:14,607 INFO L140 encePairwiseOnDemand]: 136/161 looper letters, 355 selfloop transitions, 443 changer transitions 10/968 dead transitions. [2024-11-23 23:45:14,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 968 transitions, 18369 flow [2024-11-23 23:45:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:45:14,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-23 23:45:14,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1876 transitions. [2024-11-23 23:45:14,609 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8322981366459627 [2024-11-23 23:45:14,609 INFO L175 Difference]: Start difference. First operand has 401 places, 818 transitions, 13954 flow. Second operand 14 states and 1876 transitions. [2024-11-23 23:45:14,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 968 transitions, 18369 flow [2024-11-23 23:45:15,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 968 transitions, 17738 flow, removed 36 selfloop flow, removed 5 redundant places. [2024-11-23 23:45:15,017 INFO L231 Difference]: Finished difference. Result has 417 places, 884 transitions, 16230 flow [2024-11-23 23:45:15,018 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=13388, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=383, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16230, PETRI_PLACES=417, PETRI_TRANSITIONS=884} [2024-11-23 23:45:15,018 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 257 predicate places. [2024-11-23 23:45:15,018 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 884 transitions, 16230 flow [2024-11-23 23:45:15,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 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 23:45:15,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:45:15,019 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:45:15,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-23 23:45:15,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:45:15,219 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:45:15,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:45:15,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1592873246, now seen corresponding path program 11 times [2024-11-23 23:45:15,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:45:15,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753641977] [2024-11-23 23:45:15,221 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 23:45:15,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:45:15,251 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 23:45:15,251 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:45:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:45:16,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:45:16,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753641977] [2024-11-23 23:45:16,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753641977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:45:16,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:45:16,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:45:16,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315700492] [2024-11-23 23:45:16,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:45:16,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:45:16,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:45:16,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:45:16,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:45:17,525 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-11-23 23:45:17,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 884 transitions, 16230 flow. Second operand has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 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 23:45:17,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:45:17,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-11-23 23:45:17,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:45:19,510 INFO L124 PetriNetUnfolderBase]: 1450/4324 cut-off events. [2024-11-23 23:45:19,510 INFO L125 PetriNetUnfolderBase]: For 71823/72177 co-relation queries the response was YES. [2024-11-23 23:45:19,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30533 conditions, 4324 events. 1450/4324 cut-off events. For 71823/72177 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 36172 event pairs, 136 based on Foata normal form. 145/4418 useless extension candidates. Maximal degree in co-relation 30180. Up to 1506 conditions per place. [2024-11-23 23:45:19,559 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 566 selfloop transitions, 305 changer transitions 22/1049 dead transitions. [2024-11-23 23:45:19,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 1049 transitions, 20284 flow [2024-11-23 23:45:19,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:45:19,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-23 23:45:19,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1639 transitions. [2024-11-23 23:45:19,561 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.848343685300207 [2024-11-23 23:45:19,561 INFO L175 Difference]: Start difference. First operand has 417 places, 884 transitions, 16230 flow. Second operand 12 states and 1639 transitions. [2024-11-23 23:45:19,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 1049 transitions, 20284 flow [2024-11-23 23:45:19,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 1049 transitions, 20063 flow, removed 89 selfloop flow, removed 2 redundant places. [2024-11-23 23:45:19,964 INFO L231 Difference]: Finished difference. Result has 431 places, 904 transitions, 17354 flow [2024-11-23 23:45:19,964 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=16017, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=884, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=285, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=17354, PETRI_PLACES=431, PETRI_TRANSITIONS=904} [2024-11-23 23:45:19,965 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 271 predicate places. [2024-11-23 23:45:19,965 INFO L471 AbstractCegarLoop]: Abstraction has has 431 places, 904 transitions, 17354 flow [2024-11-23 23:45:19,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 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 23:45:19,965 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:45:19,965 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:45:19,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 23:45:19,966 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:45:19,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:45:19,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1278085238, now seen corresponding path program 12 times [2024-11-23 23:45:19,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:45:19,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082011850] [2024-11-23 23:45:19,967 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 23:45:19,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:45:19,991 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-23 23:45:19,991 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:45:22,483 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:45:22,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:45:22,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082011850] [2024-11-23 23:45:22,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082011850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:45:22,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:45:22,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:45:22,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127752633] [2024-11-23 23:45:22,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:45:22,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:45:22,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:45:22,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:45:22,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:45:23,780 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-23 23:45:23,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 904 transitions, 17354 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:45:23,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:45:23,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-23 23:45:23,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:45:25,557 INFO L124 PetriNetUnfolderBase]: 1366/4194 cut-off events. [2024-11-23 23:45:25,557 INFO L125 PetriNetUnfolderBase]: For 77795/78180 co-relation queries the response was YES. [2024-11-23 23:45:25,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30384 conditions, 4194 events. 1366/4194 cut-off events. For 77795/78180 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 35356 event pairs, 115 based on Foata normal form. 146/4280 useless extension candidates. Maximal degree in co-relation 30026. Up to 1366 conditions per place. [2024-11-23 23:45:25,602 INFO L140 encePairwiseOnDemand]: 143/161 looper letters, 579 selfloop transitions, 288 changer transitions 9/1042 dead transitions. [2024-11-23 23:45:25,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 1042 transitions, 20968 flow [2024-11-23 23:45:25,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:45:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-23 23:45:25,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1513 transitions. [2024-11-23 23:45:25,604 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8543195934500283 [2024-11-23 23:45:25,604 INFO L175 Difference]: Start difference. First operand has 431 places, 904 transitions, 17354 flow. Second operand 11 states and 1513 transitions. [2024-11-23 23:45:25,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 1042 transitions, 20968 flow [2024-11-23 23:45:26,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 1042 transitions, 20508 flow, removed 15 selfloop flow, removed 7 redundant places. [2024-11-23 23:45:26,033 INFO L231 Difference]: Finished difference. Result has 438 places, 911 transitions, 17849 flow [2024-11-23 23:45:26,033 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=16899, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=281, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=620, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17849, PETRI_PLACES=438, PETRI_TRANSITIONS=911} [2024-11-23 23:45:26,034 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 278 predicate places. [2024-11-23 23:45:26,034 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 911 transitions, 17849 flow [2024-11-23 23:45:26,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:45:26,034 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:45:26,034 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:45:26,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 23:45:26,034 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:45:26,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:45:26,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1438884652, now seen corresponding path program 13 times [2024-11-23 23:45:26,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:45:26,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653563835] [2024-11-23 23:45:26,036 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 23:45:26,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:45:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:45:38,298 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-23 23:45:38,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:45:38,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653563835] [2024-11-23 23:45:38,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653563835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:45:38,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787077547] [2024-11-23 23:45:38,299 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 23:45:38,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:45:38,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:45:38,301 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:45:38,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 23:45:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:45:38,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-23 23:45:38,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:45:38,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-23 23:45:38,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-23 23:45:38,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-23 23:45:39,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-23 23:45:39,106 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-23 23:45:39,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-23 23:45:39,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-23 23:45:39,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:45:39,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:45:39,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:45:39,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:45:39,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:45:39,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-11-23 23:45:39,501 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 23:45:39,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:45:40,512 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:45:40,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787077547] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:45:40,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:45:40,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 23] total 45 [2024-11-23 23:45:40,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23971578] [2024-11-23 23:45:40,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:45:40,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:45:40,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:45:40,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:45:40,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1865, Unknown=0, NotChecked=0, Total=2070 [2024-11-23 23:45:45,034 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-11-23 23:45:45,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 911 transitions, 17849 flow. Second operand has 11 states, 11 states have (on average 125.9090909090909) internal successors, (1385), 11 states have internal predecessors, (1385), 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 23:45:45,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:45:45,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-11-23 23:45:45,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:45:48,469 INFO L124 PetriNetUnfolderBase]: 1396/4278 cut-off events. [2024-11-23 23:45:48,469 INFO L125 PetriNetUnfolderBase]: For 81218/81593 co-relation queries the response was YES. [2024-11-23 23:45:48,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31028 conditions, 4278 events. 1396/4278 cut-off events. For 81218/81593 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 36028 event pairs, 58 based on Foata normal form. 158/4397 useless extension candidates. Maximal degree in co-relation 30667. Up to 1725 conditions per place. [2024-11-23 23:45:48,526 INFO L140 encePairwiseOnDemand]: 137/161 looper letters, 367 selfloop transitions, 458 changer transitions 15/993 dead transitions. [2024-11-23 23:45:48,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 993 transitions, 20735 flow [2024-11-23 23:45:48,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:45:48,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-23 23:45:48,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1755 transitions. [2024-11-23 23:45:48,528 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8385093167701864 [2024-11-23 23:45:48,528 INFO L175 Difference]: Start difference. First operand has 438 places, 911 transitions, 17849 flow. Second operand 13 states and 1755 transitions. [2024-11-23 23:45:48,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 993 transitions, 20735 flow [2024-11-23 23:45:49,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 993 transitions, 20329 flow, removed 23 selfloop flow, removed 5 redundant places. [2024-11-23 23:45:49,129 INFO L231 Difference]: Finished difference. Result has 448 places, 924 transitions, 18803 flow [2024-11-23 23:45:49,130 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=17446, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=911, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=445, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=18803, PETRI_PLACES=448, PETRI_TRANSITIONS=924} [2024-11-23 23:45:49,130 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 288 predicate places. [2024-11-23 23:45:49,130 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 924 transitions, 18803 flow [2024-11-23 23:45:49,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 125.9090909090909) internal successors, (1385), 11 states have internal predecessors, (1385), 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 23:45:49,132 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:45:49,132 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:45:49,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-23 23:45:49,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:45:49,332 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:45:49,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:45:49,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1043715076, now seen corresponding path program 14 times [2024-11-23 23:45:49,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:45:49,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576861345] [2024-11-23 23:45:49,334 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:45:49,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:45:49,350 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:45:49,350 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:45:49,926 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:45:49,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:45:49,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576861345] [2024-11-23 23:45:49,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576861345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:45:49,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:45:49,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:45:49,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858005240] [2024-11-23 23:45:49,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:45:49,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:45:49,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:45:49,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:45:49,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:45:51,365 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-23 23:45:51,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 924 transitions, 18803 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:45:51,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:45:51,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-23 23:45:51,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:45:53,442 INFO L124 PetriNetUnfolderBase]: 1359/4177 cut-off events. [2024-11-23 23:45:53,442 INFO L125 PetriNetUnfolderBase]: For 88233/88632 co-relation queries the response was YES. [2024-11-23 23:45:53,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31327 conditions, 4177 events. 1359/4177 cut-off events. For 88233/88632 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 35198 event pairs, 179 based on Foata normal form. 230/4344 useless extension candidates. Maximal degree in co-relation 30963. Up to 1973 conditions per place. [2024-11-23 23:45:53,512 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 399 selfloop transitions, 391 changer transitions 9/965 dead transitions. [2024-11-23 23:45:53,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 965 transitions, 21069 flow [2024-11-23 23:45:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:45:53,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-23 23:45:53,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1495 transitions. [2024-11-23 23:45:53,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8441558441558441 [2024-11-23 23:45:53,514 INFO L175 Difference]: Start difference. First operand has 448 places, 924 transitions, 18803 flow. Second operand 11 states and 1495 transitions. [2024-11-23 23:45:53,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 965 transitions, 21069 flow [2024-11-23 23:45:54,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 965 transitions, 20698 flow, removed 28 selfloop flow, removed 7 redundant places. [2024-11-23 23:45:54,231 INFO L231 Difference]: Finished difference. Result has 453 places, 927 transitions, 19333 flow [2024-11-23 23:45:54,231 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=18450, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=924, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=388, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19333, PETRI_PLACES=453, PETRI_TRANSITIONS=927} [2024-11-23 23:45:54,232 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 293 predicate places. [2024-11-23 23:45:54,232 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 927 transitions, 19333 flow [2024-11-23 23:45:54,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:45:54,232 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:45:54,232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:45:54,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 23:45:54,233 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:45:54,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:45:54,235 INFO L85 PathProgramCache]: Analyzing trace with hash -248605670, now seen corresponding path program 15 times [2024-11-23 23:45:54,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:45:54,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133854502] [2024-11-23 23:45:54,235 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:45:54,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:45:54,269 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 23:45:54,269 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:45:54,958 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:45:54,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:45:54,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133854502] [2024-11-23 23:45:54,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133854502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:45:54,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:45:54,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:45:54,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394687363] [2024-11-23 23:45:54,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:45:54,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:45:54,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:45:54,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:45:54,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:45:56,556 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-23 23:45:56,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 927 transitions, 19333 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:45:56,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:45:56,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-23 23:45:56,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:45:58,471 INFO L124 PetriNetUnfolderBase]: 1366/4218 cut-off events. [2024-11-23 23:45:58,471 INFO L125 PetriNetUnfolderBase]: For 94160/94529 co-relation queries the response was YES. [2024-11-23 23:45:58,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32027 conditions, 4218 events. 1366/4218 cut-off events. For 94160/94529 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 35709 event pairs, 180 based on Foata normal form. 136/4292 useless extension candidates. Maximal degree in co-relation 31665. Up to 1912 conditions per place. [2024-11-23 23:45:58,519 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 450 selfloop transitions, 376 changer transitions 9/1001 dead transitions. [2024-11-23 23:45:58,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 1001 transitions, 22566 flow [2024-11-23 23:45:58,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:45:58,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 23:45:58,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1356 transitions. [2024-11-23 23:45:58,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8422360248447205 [2024-11-23 23:45:58,522 INFO L175 Difference]: Start difference. First operand has 453 places, 927 transitions, 19333 flow. Second operand 10 states and 1356 transitions. [2024-11-23 23:45:58,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 1001 transitions, 22566 flow [2024-11-23 23:45:59,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 1001 transitions, 22057 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-11-23 23:45:59,125 INFO L231 Difference]: Finished difference. Result has 464 places, 962 transitions, 20935 flow [2024-11-23 23:45:59,126 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=18856, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=927, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=343, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20935, PETRI_PLACES=464, PETRI_TRANSITIONS=962} [2024-11-23 23:45:59,126 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 304 predicate places. [2024-11-23 23:45:59,126 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 962 transitions, 20935 flow [2024-11-23 23:45:59,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:45:59,127 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:45:59,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:45:59,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 23:45:59,127 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:45:59,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:45:59,128 INFO L85 PathProgramCache]: Analyzing trace with hash 108608602, now seen corresponding path program 16 times [2024-11-23 23:45:59,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:45:59,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641920203] [2024-11-23 23:45:59,129 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:45:59,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:45:59,154 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:45:59,154 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:46:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-23 23:46:00,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:46:00,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641920203] [2024-11-23 23:46:00,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641920203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:46:00,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115358320] [2024-11-23 23:46:00,607 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:46:00,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:46:00,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:46:00,611 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:46:00,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 23:46:00,794 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:46:00,795 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:46:00,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-23 23:46:00,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:46:01,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-23 23:46:01,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-23 23:46:01,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-23 23:46:01,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-23 23:46:01,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-23 23:46:01,909 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-23 23:46:01,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-23 23:46:02,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:46:02,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:46:02,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:46:02,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:46:02,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:46:02,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-11-23 23:46:02,098 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-23 23:46:02,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:46:03,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-11-23 23:46:03,657 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:46:03,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115358320] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:46:03,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:46:03,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 25] total 45 [2024-11-23 23:46:03,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093364431] [2024-11-23 23:46:03,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:03,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:46:03,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:46:03,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:46:03,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1880, Unknown=0, NotChecked=0, Total=2070 [2024-11-23 23:46:12,363 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-11-23 23:46:12,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 962 transitions, 20935 flow. Second operand has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 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 23:46:12,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:46:12,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-11-23 23:46:12,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:46:16,827 INFO L124 PetriNetUnfolderBase]: 1377/4262 cut-off events. [2024-11-23 23:46:16,827 INFO L125 PetriNetUnfolderBase]: For 100352/100724 co-relation queries the response was YES. [2024-11-23 23:46:16,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32920 conditions, 4262 events. 1377/4262 cut-off events. For 100352/100724 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 36174 event pairs, 134 based on Foata normal form. 142/4358 useless extension candidates. Maximal degree in co-relation 32553. Up to 1740 conditions per place. [2024-11-23 23:46:16,893 INFO L140 encePairwiseOnDemand]: 134/161 looper letters, 355 selfloop transitions, 514 changer transitions 14/1044 dead transitions. [2024-11-23 23:46:16,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 1044 transitions, 24225 flow [2024-11-23 23:46:16,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:46:16,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-23 23:46:16,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2128 transitions. [2024-11-23 23:46:16,896 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8260869565217391 [2024-11-23 23:46:16,896 INFO L175 Difference]: Start difference. First operand has 464 places, 962 transitions, 20935 flow. Second operand 16 states and 2128 transitions. [2024-11-23 23:46:16,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 1044 transitions, 24225 flow [2024-11-23 23:46:17,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 1044 transitions, 23933 flow, removed 123 selfloop flow, removed 2 redundant places. [2024-11-23 23:46:17,594 INFO L231 Difference]: Finished difference. Result has 481 places, 974 transitions, 22177 flow [2024-11-23 23:46:17,595 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=20687, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=502, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=22177, PETRI_PLACES=481, PETRI_TRANSITIONS=974} [2024-11-23 23:46:17,596 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 321 predicate places. [2024-11-23 23:46:17,596 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 974 transitions, 22177 flow [2024-11-23 23:46:17,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 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 23:46:17,596 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:46:17,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:46:17,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-23 23:46:17,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-23 23:46:17,797 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:46:17,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:17,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1066804320, now seen corresponding path program 17 times [2024-11-23 23:46:17,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:46:17,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067535717] [2024-11-23 23:46:17,799 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 23:46:17,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:46:17,830 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 23:46:17,830 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:46:18,541 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:46:18,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:46:18,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067535717] [2024-11-23 23:46:18,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067535717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:18,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:46:18,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:46:18,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634692232] [2024-11-23 23:46:18,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:18,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:46:18,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:46:18,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:46:18,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:46:20,118 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-23 23:46:20,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 974 transitions, 22177 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:46:20,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:46:20,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-23 23:46:20,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:46:22,510 INFO L124 PetriNetUnfolderBase]: 1370/4243 cut-off events. [2024-11-23 23:46:22,510 INFO L125 PetriNetUnfolderBase]: For 110568/110960 co-relation queries the response was YES. [2024-11-23 23:46:22,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33808 conditions, 4243 events. 1370/4243 cut-off events. For 110568/110960 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 36063 event pairs, 171 based on Foata normal form. 155/4335 useless extension candidates. Maximal degree in co-relation 33438. Up to 1922 conditions per place. [2024-11-23 23:46:22,552 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 424 selfloop transitions, 434 changer transitions 9/1033 dead transitions. [2024-11-23 23:46:22,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 1033 transitions, 25227 flow [2024-11-23 23:46:22,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:46:22,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-23 23:46:22,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1873 transitions. [2024-11-23 23:46:22,554 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8309671694764863 [2024-11-23 23:46:22,554 INFO L175 Difference]: Start difference. First operand has 481 places, 974 transitions, 22177 flow. Second operand 14 states and 1873 transitions. [2024-11-23 23:46:22,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 1033 transitions, 25227 flow [2024-11-23 23:46:23,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 1033 transitions, 24408 flow, removed 47 selfloop flow, removed 9 redundant places. [2024-11-23 23:46:23,161 INFO L231 Difference]: Finished difference. Result has 491 places, 1002 transitions, 23279 flow [2024-11-23 23:46:23,161 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=21393, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=974, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=407, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=23279, PETRI_PLACES=491, PETRI_TRANSITIONS=1002} [2024-11-23 23:46:23,162 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 331 predicate places. [2024-11-23 23:46:23,162 INFO L471 AbstractCegarLoop]: Abstraction has has 491 places, 1002 transitions, 23279 flow [2024-11-23 23:46:23,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:46:23,162 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:46:23,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:46:23,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-23 23:46:23,162 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:46:23,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:23,164 INFO L85 PathProgramCache]: Analyzing trace with hash -922842554, now seen corresponding path program 18 times [2024-11-23 23:46:23,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:46:23,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774737706] [2024-11-23 23:46:23,164 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 23:46:23,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:46:23,186 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-23 23:46:23,186 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:46:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:46:23,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:46:23,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774737706] [2024-11-23 23:46:23,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774737706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:23,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:46:23,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:46:23,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603763912] [2024-11-23 23:46:23,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:23,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:46:23,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:46:23,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:46:23,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:46:25,444 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-23 23:46:25,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 1002 transitions, 23279 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:46:25,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:46:25,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-23 23:46:25,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:46:27,699 INFO L124 PetriNetUnfolderBase]: 1379/4283 cut-off events. [2024-11-23 23:46:27,699 INFO L125 PetriNetUnfolderBase]: For 114125/114505 co-relation queries the response was YES. [2024-11-23 23:46:27,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34278 conditions, 4283 events. 1379/4283 cut-off events. For 114125/114505 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 36528 event pairs, 169 based on Foata normal form. 179/4399 useless extension candidates. Maximal degree in co-relation 33902. Up to 1981 conditions per place. [2024-11-23 23:46:27,757 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 466 selfloop transitions, 410 changer transitions 9/1051 dead transitions. [2024-11-23 23:46:27,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 1051 transitions, 25978 flow [2024-11-23 23:46:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:46:27,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 23:46:27,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1361 transitions. [2024-11-23 23:46:27,759 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8453416149068324 [2024-11-23 23:46:27,759 INFO L175 Difference]: Start difference. First operand has 491 places, 1002 transitions, 23279 flow. Second operand 10 states and 1361 transitions. [2024-11-23 23:46:27,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 1051 transitions, 25978 flow [2024-11-23 23:46:28,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 1051 transitions, 24943 flow, removed 140 selfloop flow, removed 9 redundant places. [2024-11-23 23:46:28,649 INFO L231 Difference]: Finished difference. Result has 495 places, 1015 transitions, 23536 flow [2024-11-23 23:46:28,650 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=22260, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1002, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=397, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=23536, PETRI_PLACES=495, PETRI_TRANSITIONS=1015} [2024-11-23 23:46:28,651 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 335 predicate places. [2024-11-23 23:46:28,651 INFO L471 AbstractCegarLoop]: Abstraction has has 495 places, 1015 transitions, 23536 flow [2024-11-23 23:46:28,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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 23:46:28,652 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:46:28,652 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:46:28,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 23:46:28,652 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:46:28,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:28,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1112223526, now seen corresponding path program 19 times [2024-11-23 23:46:28,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:46:28,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301310926] [2024-11-23 23:46:28,655 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 23:46:28,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:46:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:39,249 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-23 23:46:39,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:46:39,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301310926] [2024-11-23 23:46:39,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301310926] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:46:39,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467644998] [2024-11-23 23:46:39,249 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 23:46:39,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:46:39,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:46:39,251 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:46:39,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 23:46:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:39,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-23 23:46:39,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:46:40,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-23 23:46:40,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-23 23:46:40,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-23 23:46:40,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-11-23 23:46:40,497 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-11-23 23:46:40,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2024-11-23 23:46:40,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-11-23 23:46:40,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:46:40,731 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:46:40,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 64 [2024-11-23 23:46:40,820 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 23:46:40,820 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:46:41,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-11-23 23:46:41,644 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:46:41,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467644998] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:46:41,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:46:41,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 24] total 45 [2024-11-23 23:46:41,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851970673] [2024-11-23 23:46:41,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:41,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:46:41,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:46:41,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:46:41,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1838, Unknown=0, NotChecked=0, Total=2070 [2024-11-23 23:46:45,114 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-11-23 23:46:45,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 1015 transitions, 23536 flow. Second operand has 11 states, 11 states have (on average 125.9090909090909) internal successors, (1385), 11 states have internal predecessors, (1385), 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 23:46:45,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:46:45,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-11-23 23:46:45,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:46:48,245 INFO L124 PetriNetUnfolderBase]: 1424/4388 cut-off events. [2024-11-23 23:46:48,245 INFO L125 PetriNetUnfolderBase]: For 114418/114781 co-relation queries the response was YES. [2024-11-23 23:46:48,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34936 conditions, 4388 events. 1424/4388 cut-off events. For 114418/114781 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 37427 event pairs, 157 based on Foata normal form. 183/4519 useless extension candidates. Maximal degree in co-relation 34561. Up to 1890 conditions per place. [2024-11-23 23:46:48,295 INFO L140 encePairwiseOnDemand]: 135/161 looper letters, 359 selfloop transitions, 578 changer transitions 12/1102 dead transitions. [2024-11-23 23:46:48,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1102 transitions, 27148 flow [2024-11-23 23:46:48,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:46:48,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-23 23:46:48,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2122 transitions. [2024-11-23 23:46:48,297 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8237577639751553 [2024-11-23 23:46:48,298 INFO L175 Difference]: Start difference. First operand has 495 places, 1015 transitions, 23536 flow. Second operand 16 states and 2122 transitions. [2024-11-23 23:46:48,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1102 transitions, 27148 flow [2024-11-23 23:46:48,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 1102 transitions, 26392 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-23 23:46:48,948 INFO L231 Difference]: Finished difference. Result has 512 places, 1039 transitions, 25152 flow [2024-11-23 23:46:48,949 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=22794, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1015, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=554, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25152, PETRI_PLACES=512, PETRI_TRANSITIONS=1039} [2024-11-23 23:46:48,949 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 352 predicate places. [2024-11-23 23:46:48,949 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 1039 transitions, 25152 flow [2024-11-23 23:46:48,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 125.9090909090909) internal successors, (1385), 11 states have internal predecessors, (1385), 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 23:46:48,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:46:48,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:46:48,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 23:46:49,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-23 23:46:49,150 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:46:49,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:49,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1320217438, now seen corresponding path program 20 times [2024-11-23 23:46:49,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:46:49,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316111844] [2024-11-23 23:46:49,152 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:46:49,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:46:49,178 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:46:49,178 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:46:53,183 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:46:53,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:46:53,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316111844] [2024-11-23 23:46:53,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316111844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:53,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:46:53,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:46:53,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502538423] [2024-11-23 23:46:53,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:53,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:46:53,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:46:53,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:46:53,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:46:55,237 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 161 [2024-11-23 23:46:55,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 1039 transitions, 25152 flow. Second operand has 12 states, 12 states have (on average 124.75) internal successors, (1497), 12 states have internal predecessors, (1497), 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 23:46:55,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:46:55,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 161 [2024-11-23 23:46:55,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:46:57,758 INFO L124 PetriNetUnfolderBase]: 1470/4447 cut-off events. [2024-11-23 23:46:57,758 INFO L125 PetriNetUnfolderBase]: For 121118/121488 co-relation queries the response was YES. [2024-11-23 23:46:57,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36172 conditions, 4447 events. 1470/4447 cut-off events. For 121118/121488 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 37744 event pairs, 211 based on Foata normal form. 237/4628 useless extension candidates. Maximal degree in co-relation 35790. Up to 2225 conditions per place. [2024-11-23 23:46:57,819 INFO L140 encePairwiseOnDemand]: 140/161 looper letters, 433 selfloop transitions, 490 changer transitions 18/1092 dead transitions. [2024-11-23 23:46:57,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 1092 transitions, 27929 flow [2024-11-23 23:46:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:46:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-23 23:46:57,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1986 transitions. [2024-11-23 23:46:57,821 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.822360248447205 [2024-11-23 23:46:57,821 INFO L175 Difference]: Start difference. First operand has 512 places, 1039 transitions, 25152 flow. Second operand 15 states and 1986 transitions. [2024-11-23 23:46:57,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 1092 transitions, 27929 flow [2024-11-23 23:46:58,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 1092 transitions, 27403 flow, removed 28 selfloop flow, removed 5 redundant places. [2024-11-23 23:46:58,570 INFO L231 Difference]: Finished difference. Result has 524 places, 1045 transitions, 25924 flow [2024-11-23 23:46:58,570 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=24631, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1039, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=484, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25924, PETRI_PLACES=524, PETRI_TRANSITIONS=1045} [2024-11-23 23:46:58,571 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 364 predicate places. [2024-11-23 23:46:58,571 INFO L471 AbstractCegarLoop]: Abstraction has has 524 places, 1045 transitions, 25924 flow [2024-11-23 23:46:58,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 124.75) internal successors, (1497), 12 states have internal predecessors, (1497), 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 23:46:58,572 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:46:58,572 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:46:58,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-23 23:46:58,572 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:46:58,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:58,574 INFO L85 PathProgramCache]: Analyzing trace with hash 822304874, now seen corresponding path program 1 times [2024-11-23 23:46:58,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:46:58,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730556048] [2024-11-23 23:46:58,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:58,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:46:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:25,773 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:47:25,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:47:25,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730556048] [2024-11-23 23:47:25,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730556048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:47:25,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307429909] [2024-11-23 23:47:25,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:25,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:25,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:25,776 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:25,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 23:47:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:25,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-11-23 23:47:26,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:26,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-23 23:47:27,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-23 23:47:27,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-23 23:47:27,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-11-23 23:47:27,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-11-23 23:47:27,596 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-11-23 23:47:27,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2024-11-23 23:47:27,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 55 [2024-11-23 23:47:27,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 55 [2024-11-23 23:47:27,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 64 [2024-11-23 23:47:27,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:27,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76 [2024-11-23 23:47:28,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:28,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:28,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:28,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:47:28,354 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:47:28,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2024-11-23 23:47:44,516 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 233 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:47:44,516 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:47:48,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 71 [2024-11-23 23:47:48,219 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:47:48,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307429909] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:47:48,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:47:48,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [19, 31] total 61 [2024-11-23 23:47:48,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45056158] [2024-11-23 23:47:48,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:48,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:47:48,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:47:48,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:47:48,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=3442, Unknown=4, NotChecked=0, Total=3782 [2024-11-23 23:48:20,647 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-11-23 23:48:20,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 1045 transitions, 25924 flow. Second operand has 15 states, 15 states have (on average 126.33333333333333) internal successors, (1895), 15 states have internal predecessors, (1895), 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 23:48:20,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:48:20,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-11-23 23:48:20,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:48:34,474 INFO L124 PetriNetUnfolderBase]: 2124/7017 cut-off events. [2024-11-23 23:48:34,475 INFO L125 PetriNetUnfolderBase]: For 219492/220223 co-relation queries the response was YES. [2024-11-23 23:48:34,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56336 conditions, 7017 events. 2124/7017 cut-off events. For 219492/220223 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 69988 event pairs, 132 based on Foata normal form. 209/7186 useless extension candidates. Maximal degree in co-relation 55949. Up to 1792 conditions per place. [2024-11-23 23:48:34,576 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 854 selfloop transitions, 312 changer transitions 49/1482 dead transitions. [2024-11-23 23:48:34,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 1482 transitions, 36956 flow [2024-11-23 23:48:34,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 23:48:34,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-23 23:48:34,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2820 transitions. [2024-11-23 23:48:34,579 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.834072759538598 [2024-11-23 23:48:34,579 INFO L175 Difference]: Start difference. First operand has 524 places, 1045 transitions, 25924 flow. Second operand 21 states and 2820 transitions. [2024-11-23 23:48:34,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 1482 transitions, 36956 flow [2024-11-23 23:48:35,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 1482 transitions, 35757 flow, removed 31 selfloop flow, removed 9 redundant places. [2024-11-23 23:48:35,783 INFO L231 Difference]: Finished difference. Result has 544 places, 1186 transitions, 28931 flow [2024-11-23 23:48:35,784 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=24942, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1045, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=820, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=28931, PETRI_PLACES=544, PETRI_TRANSITIONS=1186} [2024-11-23 23:48:35,784 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 384 predicate places. [2024-11-23 23:48:35,784 INFO L471 AbstractCegarLoop]: Abstraction has has 544 places, 1186 transitions, 28931 flow [2024-11-23 23:48:35,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 126.33333333333333) internal successors, (1895), 15 states have internal predecessors, (1895), 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 23:48:35,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:48:35,785 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:48:35,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-23 23:48:35,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:48:35,990 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:48:35,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:35,991 INFO L85 PathProgramCache]: Analyzing trace with hash -2061324988, now seen corresponding path program 2 times [2024-11-23 23:48:35,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:35,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179526344] [2024-11-23 23:48:35,991 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:48:35,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:36,012 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:48:36,012 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:48:37,002 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:48:37,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:37,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179526344] [2024-11-23 23:48:37,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179526344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:37,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:37,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:48:37,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507936693] [2024-11-23 23:48:37,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:37,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:48:37,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:37,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:48:37,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:48:38,519 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-11-23 23:48:38,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 1186 transitions, 28931 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 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 23:48:38,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:48:38,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-11-23 23:48:38,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:48:41,270 INFO L124 PetriNetUnfolderBase]: 1960/6853 cut-off events. [2024-11-23 23:48:41,271 INFO L125 PetriNetUnfolderBase]: For 227581/228332 co-relation queries the response was YES. [2024-11-23 23:48:41,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55850 conditions, 6853 events. 1960/6853 cut-off events. For 227581/228332 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 70212 event pairs, 76 based on Foata normal form. 251/7074 useless extension candidates. Maximal degree in co-relation 55457. Up to 2307 conditions per place. [2024-11-23 23:48:41,383 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 529 selfloop transitions, 212 changer transitions 6/1293 dead transitions. [2024-11-23 23:48:41,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 1293 transitions, 33761 flow [2024-11-23 23:48:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:48:41,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 23:48:41,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1400 transitions. [2024-11-23 23:48:41,385 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8695652173913043 [2024-11-23 23:48:41,386 INFO L175 Difference]: Start difference. First operand has 544 places, 1186 transitions, 28931 flow. Second operand 10 states and 1400 transitions. [2024-11-23 23:48:41,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 1293 transitions, 33761 flow [2024-11-23 23:48:43,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 1293 transitions, 33377 flow, removed 174 selfloop flow, removed 2 redundant places. [2024-11-23 23:48:43,068 INFO L231 Difference]: Finished difference. Result has 554 places, 1250 transitions, 31920 flow [2024-11-23 23:48:43,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=28651, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1008, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=31920, PETRI_PLACES=554, PETRI_TRANSITIONS=1250} [2024-11-23 23:48:43,070 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 394 predicate places. [2024-11-23 23:48:43,070 INFO L471 AbstractCegarLoop]: Abstraction has has 554 places, 1250 transitions, 31920 flow [2024-11-23 23:48:43,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 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 23:48:43,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:48:43,071 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:48:43,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-23 23:48:43,071 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:48:43,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:43,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1780496292, now seen corresponding path program 3 times [2024-11-23 23:48:43,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:43,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613801996] [2024-11-23 23:48:43,074 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:48:43,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:43,098 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 23:48:43,098 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:48:44,380 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:48:44,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:44,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613801996] [2024-11-23 23:48:44,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613801996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:44,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:44,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:48:44,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025561850] [2024-11-23 23:48:44,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:44,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:48:44,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:44,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:48:44,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:48:45,990 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-11-23 23:48:45,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 1250 transitions, 31920 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 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 23:48:45,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:48:45,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-11-23 23:48:45,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:48:49,873 INFO L124 PetriNetUnfolderBase]: 2283/7789 cut-off events. [2024-11-23 23:48:49,873 INFO L125 PetriNetUnfolderBase]: For 265561/266484 co-relation queries the response was YES. [2024-11-23 23:48:49,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62255 conditions, 7789 events. 2283/7789 cut-off events. For 265561/266484 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 81034 event pairs, 97 based on Foata normal form. 292/8044 useless extension candidates. Maximal degree in co-relation 61858. Up to 1975 conditions per place. [2024-11-23 23:48:49,967 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 670 selfloop transitions, 315 changer transitions 9/1540 dead transitions. [2024-11-23 23:48:49,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 1540 transitions, 39108 flow [2024-11-23 23:48:49,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:48:49,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-23 23:48:49,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1563 transitions. [2024-11-23 23:48:49,969 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8825522303783173 [2024-11-23 23:48:49,969 INFO L175 Difference]: Start difference. First operand has 554 places, 1250 transitions, 31920 flow. Second operand 11 states and 1563 transitions. [2024-11-23 23:48:49,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 1540 transitions, 39108 flow [2024-11-23 23:48:51,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 1540 transitions, 38885 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-23 23:48:51,384 INFO L231 Difference]: Finished difference. Result has 566 places, 1359 transitions, 35949 flow [2024-11-23 23:48:51,385 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=31751, PETRI_DIFFERENCE_MINUEND_PLACES=549, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1002, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=35949, PETRI_PLACES=566, PETRI_TRANSITIONS=1359} [2024-11-23 23:48:51,386 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 406 predicate places. [2024-11-23 23:48:51,386 INFO L471 AbstractCegarLoop]: Abstraction has has 566 places, 1359 transitions, 35949 flow [2024-11-23 23:48:51,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 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 23:48:51,386 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:48:51,387 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:48:51,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-23 23:48:51,387 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:48:51,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:51,389 INFO L85 PathProgramCache]: Analyzing trace with hash 430544120, now seen corresponding path program 4 times [2024-11-23 23:48:51,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:51,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598058576] [2024-11-23 23:48:51,390 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:48:51,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:51,425 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:48:51,426 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:48:53,883 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-23 23:48:53,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:53,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598058576] [2024-11-23 23:48:53,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598058576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:48:53,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275136040] [2024-11-23 23:48:53,884 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:48:53,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:48:53,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:48:53,886 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:48:53,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 23:48:54,110 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:48:54,110 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:48:54,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-23 23:48:54,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:48:54,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-23 23:48:54,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-23 23:48:54,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-23 23:48:54,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-11-23 23:48:55,107 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-11-23 23:48:55,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2024-11-23 23:48:55,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2024-11-23 23:48:55,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2024-11-23 23:48:55,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2024-11-23 23:48:55,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2024-11-23 23:48:55,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2024-11-23 23:48:55,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:48:55,911 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:48:55,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2024-11-23 23:48:56,034 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 23:48:56,034 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:48:58,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 71 [2024-11-23 23:48:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:48:59,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275136040] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:48:59,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:48:59,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 27] total 52 [2024-11-23 23:48:59,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084287865] [2024-11-23 23:48:59,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:59,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:48:59,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:59,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:48:59,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=2473, Unknown=0, NotChecked=0, Total=2756 [2024-11-23 23:49:16,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-23 23:49:16,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 1359 transitions, 35949 flow. Second operand has 15 states, 15 states have (on average 127.26666666666667) internal successors, (1909), 15 states have internal predecessors, (1909), 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 23:49:16,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:49:16,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-23 23:49:16,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:49:27,106 INFO L124 PetriNetUnfolderBase]: 2801/9100 cut-off events. [2024-11-23 23:49:27,107 INFO L125 PetriNetUnfolderBase]: For 340181/341332 co-relation queries the response was YES. [2024-11-23 23:49:27,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75647 conditions, 9100 events. 2801/9100 cut-off events. For 340181/341332 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 94902 event pairs, 161 based on Foata normal form. 448/9505 useless extension candidates. Maximal degree in co-relation 75244. Up to 2400 conditions per place. [2024-11-23 23:49:27,217 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 830 selfloop transitions, 610 changer transitions 18/1726 dead transitions. [2024-11-23 23:49:27,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 1726 transitions, 48299 flow [2024-11-23 23:49:27,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 23:49:27,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-23 23:49:27,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2572 transitions. [2024-11-23 23:49:27,220 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8407976462896372 [2024-11-23 23:49:27,220 INFO L175 Difference]: Start difference. First operand has 566 places, 1359 transitions, 35949 flow. Second operand 19 states and 2572 transitions. [2024-11-23 23:49:27,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 1726 transitions, 48299 flow [2024-11-23 23:49:29,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 1726 transitions, 47714 flow, removed 19 selfloop flow, removed 2 redundant places. [2024-11-23 23:49:29,139 INFO L231 Difference]: Finished difference. Result has 596 places, 1544 transitions, 43646 flow [2024-11-23 23:49:29,140 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=35478, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=429, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=894, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=43646, PETRI_PLACES=596, PETRI_TRANSITIONS=1544} [2024-11-23 23:49:29,140 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 436 predicate places. [2024-11-23 23:49:29,140 INFO L471 AbstractCegarLoop]: Abstraction has has 596 places, 1544 transitions, 43646 flow [2024-11-23 23:49:29,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 127.26666666666667) internal successors, (1909), 15 states have internal predecessors, (1909), 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 23:49:29,141 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:49:29,141 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:49:29,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-23 23:49:29,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-23 23:49:29,341 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:49:29,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:49:29,343 INFO L85 PathProgramCache]: Analyzing trace with hash -523346460, now seen corresponding path program 5 times [2024-11-23 23:49:29,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:49:29,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72314302] [2024-11-23 23:49:29,343 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 23:49:29,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:49:29,379 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 23:49:29,379 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:49:31,046 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:49:31,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:49:31,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72314302] [2024-11-23 23:49:31,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72314302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:49:31,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:49:31,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:49:31,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38703543] [2024-11-23 23:49:31,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:49:31,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:49:31,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:49:31,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:49:31,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:49:33,233 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 161 [2024-11-23 23:49:33,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 1544 transitions, 43646 flow. Second operand has 11 states, 11 states have (on average 131.45454545454547) internal successors, (1446), 11 states have internal predecessors, (1446), 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 23:49:33,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:49:33,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 161 [2024-11-23 23:49:33,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:49:39,766 INFO L124 PetriNetUnfolderBase]: 2885/9596 cut-off events. [2024-11-23 23:49:39,766 INFO L125 PetriNetUnfolderBase]: For 419622/421248 co-relation queries the response was YES. [2024-11-23 23:49:39,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83135 conditions, 9596 events. 2885/9596 cut-off events. For 419622/421248 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 102736 event pairs, 154 based on Foata normal form. 605/10141 useless extension candidates. Maximal degree in co-relation 82719. Up to 3257 conditions per place. [2024-11-23 23:49:39,944 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 680 selfloop transitions, 600 changer transitions 12/1816 dead transitions. [2024-11-23 23:49:39,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 611 places, 1816 transitions, 54649 flow [2024-11-23 23:49:39,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:49:39,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-23 23:49:39,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2215 transitions. [2024-11-23 23:49:39,946 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.859860248447205 [2024-11-23 23:49:39,947 INFO L175 Difference]: Start difference. First operand has 596 places, 1544 transitions, 43646 flow. Second operand 16 states and 2215 transitions. [2024-11-23 23:49:39,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 611 places, 1816 transitions, 54649 flow [2024-11-23 23:49:43,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 609 places, 1816 transitions, 54404 flow, removed 94 selfloop flow, removed 2 redundant places. [2024-11-23 23:49:43,143 INFO L231 Difference]: Finished difference. Result has 621 places, 1726 transitions, 52821 flow [2024-11-23 23:49:43,145 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=43457, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=438, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1067, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=52821, PETRI_PLACES=621, PETRI_TRANSITIONS=1726} [2024-11-23 23:49:43,145 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 461 predicate places. [2024-11-23 23:49:43,146 INFO L471 AbstractCegarLoop]: Abstraction has has 621 places, 1726 transitions, 52821 flow [2024-11-23 23:49:43,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.45454545454547) internal successors, (1446), 11 states have internal predecessors, (1446), 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 23:49:43,150 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:49:43,150 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:49:43,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-23 23:49:43,150 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:49:43,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:49:43,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1496528486, now seen corresponding path program 6 times [2024-11-23 23:49:43,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:49:43,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324486891] [2024-11-23 23:49:43,153 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 23:49:43,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:49:43,188 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-23 23:49:43,188 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:49:44,466 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-11-23 23:49:44,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:49:44,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324486891] [2024-11-23 23:49:44,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324486891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:49:44,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:49:44,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:49:44,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605618265] [2024-11-23 23:49:44,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:49:44,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:49:44,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:49:44,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:49:44,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:49:46,472 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-11-23 23:49:46,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 1726 transitions, 52821 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 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 23:49:46,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:49:46,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-11-23 23:49:46,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:49:54,834 INFO L124 PetriNetUnfolderBase]: 2889/9800 cut-off events. [2024-11-23 23:49:54,834 INFO L125 PetriNetUnfolderBase]: For 516182/518027 co-relation queries the response was YES. [2024-11-23 23:49:55,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89123 conditions, 9800 events. 2889/9800 cut-off events. For 516182/518027 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 106477 event pairs, 118 based on Foata normal form. 719/10452 useless extension candidates. Maximal degree in co-relation 88695. Up to 3297 conditions per place. [2024-11-23 23:49:55,119 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 731 selfloop transitions, 638 changer transitions 7/1931 dead transitions. [2024-11-23 23:49:55,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 1931 transitions, 63306 flow [2024-11-23 23:49:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:49:55,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-23 23:49:55,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2084 transitions. [2024-11-23 23:49:55,121 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8629399585921325 [2024-11-23 23:49:55,122 INFO L175 Difference]: Start difference. First operand has 621 places, 1726 transitions, 52821 flow. Second operand 15 states and 2084 transitions. [2024-11-23 23:49:55,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 1931 transitions, 63306 flow [2024-11-23 23:49:58,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 633 places, 1931 transitions, 63072 flow, removed 73 selfloop flow, removed 2 redundant places. [2024-11-23 23:49:58,790 INFO L231 Difference]: Finished difference. Result has 642 places, 1869 transitions, 61761 flow [2024-11-23 23:49:58,791 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=52622, PETRI_DIFFERENCE_MINUEND_PLACES=619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1726, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=507, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=61761, PETRI_PLACES=642, PETRI_TRANSITIONS=1869} [2024-11-23 23:49:58,791 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 482 predicate places. [2024-11-23 23:49:58,791 INFO L471 AbstractCegarLoop]: Abstraction has has 642 places, 1869 transitions, 61761 flow [2024-11-23 23:49:58,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 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 23:49:58,792 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:49:58,792 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:49:58,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-23 23:49:58,792 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-23 23:49:58,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:49:58,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1472051362, now seen corresponding path program 7 times [2024-11-23 23:49:58,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:49:58,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163074666] [2024-11-23 23:49:58,795 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 23:49:58,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:49:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:50:07,524 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-23 23:50:07,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:50:07,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163074666] [2024-11-23 23:50:07,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163074666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:50:07,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970911647] [2024-11-23 23:50:07,524 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 23:50:07,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:50:07,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:50:07,526 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:50:07,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d173db1-f56b-4f8c-a514-eb9b781ae96d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 23:50:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:50:07,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-11-23 23:50:07,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:50:08,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-23 23:50:08,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-23 23:50:08,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-23 23:50:08,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-11-23 23:50:09,045 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-11-23 23:50:09,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2024-11-23 23:50:09,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2024-11-23 23:50:09,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2024-11-23 23:50:09,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-11-23 23:50:09,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 64 [2024-11-23 23:50:09,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:50:09,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76