./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4e91816f101a416d37c086dd7185cfb4e2bfa63eb286e4a418cb94db27cf2f6f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:43:56,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:43:56,989 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:43:56,997 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:43:56,998 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:43:57,039 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:43:57,039 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:43:57,040 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:43:57,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:43:57,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:43:57,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:43:57,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:43:57,041 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:43:57,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:43:57,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:43:57,041 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:43:57,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:43:57,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:43:57,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:43:57,042 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:43:57,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:43:57,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:43:57,043 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:43:57,043 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:43:57,043 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:43:57,043 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:43:57,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:43:57,043 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:43:57,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:43:57,043 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:43:57,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:43:57,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:43:57,044 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:43:57,044 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:43:57,044 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:43:57,044 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:43:57,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:43:57,045 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:43:57,045 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:43:57,045 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:43:57,045 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:43:57,045 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_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e91816f101a416d37c086dd7185cfb4e2bfa63eb286e4a418cb94db27cf2f6f [2024-11-13 15:43:57,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:43:57,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:43:57,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:43:57,336 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:43:57,337 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:43:57,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i Unable to find full path for "g++" [2024-11-13 15:43:59,111 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:43:59,456 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:43:59,457 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i [2024-11-13 15:43:59,470 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/data/153e44407/2d0075abd6ad4397826fdb762036f778/FLAG8e467542f [2024-11-13 15:43:59,691 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/data/153e44407/2d0075abd6ad4397826fdb762036f778 [2024-11-13 15:43:59,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:43:59,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:43:59,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:43:59,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:43:59,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:43:59,708 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:43:59" (1/1) ... [2024-11-13 15:43:59,709 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb57f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:43:59, skipping insertion in model container [2024-11-13 15:43:59,709 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:43:59" (1/1) ... [2024-11-13 15:43:59,763 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:44:00,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:44:00,198 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:44:00,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:44:00,291 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:44:00,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:00 WrapperNode [2024-11-13 15:44:00,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:44:00,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:44:00,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:44:00,292 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:44:00,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:00" (1/1) ... [2024-11-13 15:44:00,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:00" (1/1) ... [2024-11-13 15:44:00,342 INFO L138 Inliner]: procedures = 177, calls = 45, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 224 [2024-11-13 15:44:00,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:44:00,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:44:00,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:44:00,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:44:00,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:00" (1/1) ... [2024-11-13 15:44:00,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:00" (1/1) ... [2024-11-13 15:44:00,358 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:00" (1/1) ... [2024-11-13 15:44:00,359 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:00" (1/1) ... [2024-11-13 15:44:00,369 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:00" (1/1) ... [2024-11-13 15:44:00,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:00" (1/1) ... [2024-11-13 15:44:00,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:00" (1/1) ... [2024-11-13 15:44:00,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:00" (1/1) ... [2024-11-13 15:44:00,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:44:00,379 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:44:00,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:44:00,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:44:00,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:00" (1/1) ... [2024-11-13 15:44:00,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:44:00,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:44:00,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:44:00,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:44:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 15:44:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 15:44:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:44:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:44:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:44:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 15:44:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 15:44:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:44:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 15:44:00,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 15:44:00,445 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:44:00,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:44:00,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:44:00,446 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 15:44:00,618 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:44:00,623 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:44:01,075 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:44:01,075 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:44:01,109 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:44:01,109 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-13 15:44:01,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:44:01 BoogieIcfgContainer [2024-11-13 15:44:01,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:44:01,113 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:44:01,113 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:44:01,118 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:44:01,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:43:59" (1/3) ... [2024-11-13 15:44:01,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51cc8b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:44:01, skipping insertion in model container [2024-11-13 15:44:01,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:00" (2/3) ... [2024-11-13 15:44:01,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51cc8b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:44:01, skipping insertion in model container [2024-11-13 15:44:01,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:44:01" (3/3) ... [2024-11-13 15:44:01,121 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_20-callback_racefree.i [2024-11-13 15:44:01,136 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:44:01,138 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_20-callback_racefree.i that has 2 procedures, 224 locations, 1 initial locations, 7 loop locations, and 7 error locations. [2024-11-13 15:44:01,138 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:44:01,291 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 15:44:01,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 227 places, 240 transitions, 487 flow [2024-11-13 15:44:01,539 INFO L124 PetriNetUnfolderBase]: 27/350 cut-off events. [2024-11-13 15:44:01,541 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:44:01,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 350 events. 27/350 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 964 event pairs, 0 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 201. Up to 6 conditions per place. [2024-11-13 15:44:01,553 INFO L82 GeneralOperation]: Start removeDead. Operand has 227 places, 240 transitions, 487 flow [2024-11-13 15:44:01,561 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 227 places, 240 transitions, 487 flow [2024-11-13 15:44:01,572 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:44:01,588 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;@3fb8652e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:44:01,588 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-13 15:44:01,632 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:44:01,632 INFO L124 PetriNetUnfolderBase]: 2/114 cut-off events. [2024-11-13 15:44:01,632 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:44:01,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:44:01,634 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:01,635 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:44:01,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:01,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1279822666, now seen corresponding path program 1 times [2024-11-13 15:44:01,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:01,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430952953] [2024-11-13 15:44:01,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:01,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:03,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:44:03,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:03,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430952953] [2024-11-13 15:44:03,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430952953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:03,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:44:03,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:44:03,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600329985] [2024-11-13 15:44:03,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:03,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:44:03,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:03,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:44:03,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:44:03,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 240 [2024-11-13 15:44:03,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 240 transitions, 487 flow. Second operand has 6 states, 6 states have (on average 197.5) internal successors, (1185), 6 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:03,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:44:03,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 240 [2024-11-13 15:44:03,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:44:03,704 INFO L124 PetriNetUnfolderBase]: 93/816 cut-off events. [2024-11-13 15:44:03,704 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-13 15:44:03,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 816 events. 93/816 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4209 event pairs, 8 based on Foata normal form. 101/859 useless extension candidates. Maximal degree in co-relation 799. Up to 154 conditions per place. [2024-11-13 15:44:03,711 INFO L140 encePairwiseOnDemand]: 221/240 looper letters, 40 selfloop transitions, 5 changer transitions 0/240 dead transitions. [2024-11-13 15:44:03,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 240 transitions, 577 flow [2024-11-13 15:44:03,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:44:03,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:44:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1251 transitions. [2024-11-13 15:44:03,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.86875 [2024-11-13 15:44:03,740 INFO L175 Difference]: Start difference. First operand has 227 places, 240 transitions, 487 flow. Second operand 6 states and 1251 transitions. [2024-11-13 15:44:03,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 240 transitions, 577 flow [2024-11-13 15:44:03,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 240 transitions, 577 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:44:03,758 INFO L231 Difference]: Finished difference. Result has 229 places, 224 transitions, 465 flow [2024-11-13 15:44:03,762 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=465, PETRI_PLACES=229, PETRI_TRANSITIONS=224} [2024-11-13 15:44:03,767 INFO L277 CegarLoopForPetriNet]: 227 programPoint places, 2 predicate places. [2024-11-13 15:44:03,768 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 224 transitions, 465 flow [2024-11-13 15:44:03,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.5) internal successors, (1185), 6 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:03,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:44:03,770 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:03,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:44:03,770 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:44:03,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:03,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1670204175, now seen corresponding path program 1 times [2024-11-13 15:44:03,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:03,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460199541] [2024-11-13 15:44:03,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:03,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:44:03,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:03,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460199541] [2024-11-13 15:44:03,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460199541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:03,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:44:03,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:44:03,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267867210] [2024-11-13 15:44:03,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:03,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:44:03,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:03,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:44:03,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:44:03,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 240 [2024-11-13 15:44:03,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 224 transitions, 465 flow. Second operand has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:03,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:44:03,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 240 [2024-11-13 15:44:03,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:44:04,190 INFO L124 PetriNetUnfolderBase]: 113/985 cut-off events. [2024-11-13 15:44:04,190 INFO L125 PetriNetUnfolderBase]: For 13/19 co-relation queries the response was YES. [2024-11-13 15:44:04,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1255 conditions, 985 events. 113/985 cut-off events. For 13/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4854 event pairs, 34 based on Foata normal form. 1/908 useless extension candidates. Maximal degree in co-relation 1029. Up to 137 conditions per place. [2024-11-13 15:44:04,196 INFO L140 encePairwiseOnDemand]: 231/240 looper letters, 30 selfloop transitions, 6 changer transitions 0/237 dead transitions. [2024-11-13 15:44:04,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 237 transitions, 566 flow [2024-11-13 15:44:04,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:44:04,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:44:04,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 648 transitions. [2024-11-13 15:44:04,198 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9 [2024-11-13 15:44:04,198 INFO L175 Difference]: Start difference. First operand has 229 places, 224 transitions, 465 flow. Second operand 3 states and 648 transitions. [2024-11-13 15:44:04,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 237 transitions, 566 flow [2024-11-13 15:44:04,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 237 transitions, 556 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:44:04,204 INFO L231 Difference]: Finished difference. Result has 226 places, 226 transitions, 493 flow [2024-11-13 15:44:04,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=226, PETRI_TRANSITIONS=226} [2024-11-13 15:44:04,205 INFO L277 CegarLoopForPetriNet]: 227 programPoint places, -1 predicate places. [2024-11-13 15:44:04,205 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 226 transitions, 493 flow [2024-11-13 15:44:04,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:04,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:44:04,206 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:04,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:44:04,206 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:44:04,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:04,206 INFO L85 PathProgramCache]: Analyzing trace with hash -60048990, now seen corresponding path program 1 times [2024-11-13 15:44:04,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:04,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142812716] [2024-11-13 15:44:04,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:04,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:04,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:44:04,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:04,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142812716] [2024-11-13 15:44:04,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142812716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:04,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:44:04,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:44:04,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532453283] [2024-11-13 15:44:04,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:04,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:44:04,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:04,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:44:04,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:44:04,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 240 [2024-11-13 15:44:04,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 226 transitions, 493 flow. Second operand has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:04,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:44:04,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 240 [2024-11-13 15:44:04,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:44:04,600 INFO L124 PetriNetUnfolderBase]: 82/967 cut-off events. [2024-11-13 15:44:04,600 INFO L125 PetriNetUnfolderBase]: For 34/36 co-relation queries the response was YES. [2024-11-13 15:44:04,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 967 events. 82/967 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4770 event pairs, 38 based on Foata normal form. 1/902 useless extension candidates. Maximal degree in co-relation 1041. Up to 146 conditions per place. [2024-11-13 15:44:04,608 INFO L140 encePairwiseOnDemand]: 237/240 looper letters, 20 selfloop transitions, 2 changer transitions 0/230 dead transitions. [2024-11-13 15:44:04,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 230 transitions, 545 flow [2024-11-13 15:44:04,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:44:04,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:44:04,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 647 transitions. [2024-11-13 15:44:04,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8986111111111111 [2024-11-13 15:44:04,612 INFO L175 Difference]: Start difference. First operand has 226 places, 226 transitions, 493 flow. Second operand 3 states and 647 transitions. [2024-11-13 15:44:04,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 230 transitions, 545 flow [2024-11-13 15:44:04,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 230 transitions, 533 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:44:04,623 INFO L231 Difference]: Finished difference. Result has 227 places, 226 transitions, 489 flow [2024-11-13 15:44:04,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=489, PETRI_PLACES=227, PETRI_TRANSITIONS=226} [2024-11-13 15:44:04,624 INFO L277 CegarLoopForPetriNet]: 227 programPoint places, 0 predicate places. [2024-11-13 15:44:04,625 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 226 transitions, 489 flow [2024-11-13 15:44:04,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:04,625 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:44:04,625 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:04,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:44:04,626 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:44:04,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:04,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2112552945, now seen corresponding path program 1 times [2024-11-13 15:44:04,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:04,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542037919] [2024-11-13 15:44:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:04,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:44:04,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:44:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:44:04,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:44:04,782 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:44:04,783 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-13 15:44:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-13 15:44:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-13 15:44:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-13 15:44:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-13 15:44:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-13 15:44:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-13 15:44:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-13 15:44:04,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-13 15:44:04,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:44:04,786 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 15:44:04,790 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:44:04,791 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 15:44:04,834 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 15:44:04,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 256 places, 272 transitions, 560 flow [2024-11-13 15:44:04,926 INFO L124 PetriNetUnfolderBase]: 45/520 cut-off events. [2024-11-13 15:44:04,926 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 15:44:04,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 520 events. 45/520 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1829 event pairs, 0 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 352. Up to 9 conditions per place. [2024-11-13 15:44:04,930 INFO L82 GeneralOperation]: Start removeDead. Operand has 256 places, 272 transitions, 560 flow [2024-11-13 15:44:04,934 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 256 places, 272 transitions, 560 flow [2024-11-13 15:44:04,935 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:44:04,936 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;@3fb8652e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:44:04,936 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-13 15:44:04,954 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:44:04,954 INFO L124 PetriNetUnfolderBase]: 2/114 cut-off events. [2024-11-13 15:44:04,954 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:44:04,954 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:44:04,955 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:04,955 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-13 15:44:04,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:04,956 INFO L85 PathProgramCache]: Analyzing trace with hash -596973478, now seen corresponding path program 1 times [2024-11-13 15:44:04,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:04,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544128817] [2024-11-13 15:44:04,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:04,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:05,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:44:05,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:05,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544128817] [2024-11-13 15:44:05,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544128817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:05,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:44:05,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:44:05,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030092123] [2024-11-13 15:44:05,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:05,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:44:05,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:05,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:44:05,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:44:05,760 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 272 [2024-11-13 15:44:05,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 272 transitions, 560 flow. Second operand has 6 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:05,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:44:05,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 272 [2024-11-13 15:44:05,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:44:06,790 INFO L124 PetriNetUnfolderBase]: 1001/4596 cut-off events. [2024-11-13 15:44:06,792 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-13 15:44:06,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6255 conditions, 4596 events. 1001/4596 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 42184 event pairs, 333 based on Foata normal form. 909/5187 useless extension candidates. Maximal degree in co-relation 2050. Up to 1202 conditions per place. [2024-11-13 15:44:06,823 INFO L140 encePairwiseOnDemand]: 249/272 looper letters, 62 selfloop transitions, 5 changer transitions 0/282 dead transitions. [2024-11-13 15:44:06,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 282 transitions, 714 flow [2024-11-13 15:44:06,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:44:06,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:44:06,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1419 transitions. [2024-11-13 15:44:06,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8694852941176471 [2024-11-13 15:44:06,830 INFO L175 Difference]: Start difference. First operand has 256 places, 272 transitions, 560 flow. Second operand 6 states and 1419 transitions. [2024-11-13 15:44:06,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 282 transitions, 714 flow [2024-11-13 15:44:06,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 282 transitions, 714 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:44:06,838 INFO L231 Difference]: Finished difference. Result has 256 places, 250 transitions, 526 flow [2024-11-13 15:44:06,839 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=526, PETRI_PLACES=256, PETRI_TRANSITIONS=250} [2024-11-13 15:44:06,840 INFO L277 CegarLoopForPetriNet]: 256 programPoint places, 0 predicate places. [2024-11-13 15:44:06,840 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 250 transitions, 526 flow [2024-11-13 15:44:06,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:06,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:44:06,841 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:06,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:44:06,841 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-13 15:44:06,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:06,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1425028061, now seen corresponding path program 1 times [2024-11-13 15:44:06,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:06,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53667580] [2024-11-13 15:44:06,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:06,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:06,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:44:06,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:06,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53667580] [2024-11-13 15:44:06,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53667580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:06,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:44:06,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:44:06,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928638936] [2024-11-13 15:44:06,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:06,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:44:06,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:06,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:44:06,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:44:06,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 272 [2024-11-13 15:44:06,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 250 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:06,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:44:06,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 272 [2024-11-13 15:44:06,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:44:08,648 INFO L124 PetriNetUnfolderBase]: 2103/8761 cut-off events. [2024-11-13 15:44:08,648 INFO L125 PetriNetUnfolderBase]: For 158/285 co-relation queries the response was YES. [2024-11-13 15:44:08,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12285 conditions, 8761 events. 2103/8761 cut-off events. For 158/285 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 86606 event pairs, 747 based on Foata normal form. 8/7958 useless extension candidates. Maximal degree in co-relation 10983. Up to 2127 conditions per place. [2024-11-13 15:44:08,753 INFO L140 encePairwiseOnDemand]: 260/272 looper letters, 45 selfloop transitions, 8 changer transitions 0/271 dead transitions. [2024-11-13 15:44:08,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 271 transitions, 685 flow [2024-11-13 15:44:08,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:44:08,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:44:08,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 720 transitions. [2024-11-13 15:44:08,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2024-11-13 15:44:08,756 INFO L175 Difference]: Start difference. First operand has 256 places, 250 transitions, 526 flow. Second operand 3 states and 720 transitions. [2024-11-13 15:44:08,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 271 transitions, 685 flow [2024-11-13 15:44:08,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 271 transitions, 675 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:44:08,764 INFO L231 Difference]: Finished difference. Result has 253 places, 254 transitions, 572 flow [2024-11-13 15:44:08,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=572, PETRI_PLACES=253, PETRI_TRANSITIONS=254} [2024-11-13 15:44:08,765 INFO L277 CegarLoopForPetriNet]: 256 programPoint places, -3 predicate places. [2024-11-13 15:44:08,766 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 254 transitions, 572 flow [2024-11-13 15:44:08,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:08,767 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:44:08,767 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:08,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:44:08,767 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-13 15:44:08,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:08,768 INFO L85 PathProgramCache]: Analyzing trace with hash -559575374, now seen corresponding path program 1 times [2024-11-13 15:44:08,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:08,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478073800] [2024-11-13 15:44:08,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:08,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:44:08,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:08,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478073800] [2024-11-13 15:44:08,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478073800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:08,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:44:08,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:44:08,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528730973] [2024-11-13 15:44:08,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:08,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:44:08,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:08,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:44:08,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:44:08,903 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 272 [2024-11-13 15:44:08,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 254 transitions, 572 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:08,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:44:08,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 272 [2024-11-13 15:44:08,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:44:10,333 INFO L124 PetriNetUnfolderBase]: 1320/7698 cut-off events. [2024-11-13 15:44:10,333 INFO L125 PetriNetUnfolderBase]: For 384/430 co-relation queries the response was YES. [2024-11-13 15:44:10,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10508 conditions, 7698 events. 1320/7698 cut-off events. For 384/430 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 78518 event pairs, 566 based on Foata normal form. 1/7038 useless extension candidates. Maximal degree in co-relation 4494. Up to 1811 conditions per place. [2024-11-13 15:44:10,398 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 27 selfloop transitions, 2 changer transitions 0/259 dead transitions. [2024-11-13 15:44:10,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 259 transitions, 640 flow [2024-11-13 15:44:10,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:44:10,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:44:10,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 717 transitions. [2024-11-13 15:44:10,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8786764705882353 [2024-11-13 15:44:10,401 INFO L175 Difference]: Start difference. First operand has 253 places, 254 transitions, 572 flow. Second operand 3 states and 717 transitions. [2024-11-13 15:44:10,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 259 transitions, 640 flow [2024-11-13 15:44:10,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 259 transitions, 624 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:44:10,413 INFO L231 Difference]: Finished difference. Result has 254 places, 255 transitions, 568 flow [2024-11-13 15:44:10,414 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=568, PETRI_PLACES=254, PETRI_TRANSITIONS=255} [2024-11-13 15:44:10,416 INFO L277 CegarLoopForPetriNet]: 256 programPoint places, -2 predicate places. [2024-11-13 15:44:10,417 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 255 transitions, 568 flow [2024-11-13 15:44:10,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:10,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:44:10,418 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:10,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:44:10,418 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-13 15:44:10,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:10,419 INFO L85 PathProgramCache]: Analyzing trace with hash 865801568, now seen corresponding path program 1 times [2024-11-13 15:44:10,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:10,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010138031] [2024-11-13 15:44:10,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:10,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:10,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:44:10,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:10,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010138031] [2024-11-13 15:44:10,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010138031] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:44:10,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134579978] [2024-11-13 15:44:10,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:10,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:44:10,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:44:10,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:44:10,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:44:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:10,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:44:10,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:44:10,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:44:10,821 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:44:10,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134579978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:10,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:44:10,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-13 15:44:10,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8141569] [2024-11-13 15:44:10,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:10,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:44:10,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:10,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:44:10,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:44:10,833 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 272 [2024-11-13 15:44:10,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 255 transitions, 568 flow. Second operand has 3 states, 3 states have (on average 231.0) internal successors, (693), 3 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:10,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:44:10,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 272 [2024-11-13 15:44:10,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:44:12,774 INFO L124 PetriNetUnfolderBase]: 2343/13250 cut-off events. [2024-11-13 15:44:12,775 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-11-13 15:44:12,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17752 conditions, 13250 events. 2343/13250 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 154996 event pairs, 1363 based on Foata normal form. 36/12163 useless extension candidates. Maximal degree in co-relation 17635. Up to 2189 conditions per place. [2024-11-13 15:44:12,843 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 37 selfloop transitions, 2 changer transitions 0/270 dead transitions. [2024-11-13 15:44:12,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 270 transitions, 676 flow [2024-11-13 15:44:12,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:44:12,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:44:12,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 727 transitions. [2024-11-13 15:44:12,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8909313725490197 [2024-11-13 15:44:12,847 INFO L175 Difference]: Start difference. First operand has 254 places, 255 transitions, 568 flow. Second operand 3 states and 727 transitions. [2024-11-13 15:44:12,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 270 transitions, 676 flow [2024-11-13 15:44:12,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 270 transitions, 674 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:44:12,854 INFO L231 Difference]: Finished difference. Result has 256 places, 256 transitions, 578 flow [2024-11-13 15:44:12,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=256, PETRI_TRANSITIONS=256} [2024-11-13 15:44:12,858 INFO L277 CegarLoopForPetriNet]: 256 programPoint places, 0 predicate places. [2024-11-13 15:44:12,858 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 256 transitions, 578 flow [2024-11-13 15:44:12,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.0) internal successors, (693), 3 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:12,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:44:12,859 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:12,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:44:13,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-13 15:44:13,060 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-13 15:44:13,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:13,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1111602304, now seen corresponding path program 1 times [2024-11-13 15:44:13,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:13,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536620133] [2024-11-13 15:44:13,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:13,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:44:13,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:44:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:44:13,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:44:13,169 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:44:13,169 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-13 15:44:13,169 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-13 15:44:13,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-13 15:44:13,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-13 15:44:13,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-13 15:44:13,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-13 15:44:13,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-11-13 15:44:13,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-13 15:44:13,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-13 15:44:13,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-13 15:44:13,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:44:13,171 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-13 15:44:13,171 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:44:13,172 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-13 15:44:13,209 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 15:44:13,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 304 transitions, 635 flow [2024-11-13 15:44:13,300 INFO L124 PetriNetUnfolderBase]: 68/735 cut-off events. [2024-11-13 15:44:13,300 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-13 15:44:13,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 735 events. 68/735 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2931 event pairs, 1 based on Foata normal form. 0/632 useless extension candidates. Maximal degree in co-relation 528. Up to 16 conditions per place. [2024-11-13 15:44:13,306 INFO L82 GeneralOperation]: Start removeDead. Operand has 285 places, 304 transitions, 635 flow [2024-11-13 15:44:13,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 304 transitions, 635 flow [2024-11-13 15:44:13,312 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:44:13,313 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;@3fb8652e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:44:13,313 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-13 15:44:13,319 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:44:13,319 INFO L124 PetriNetUnfolderBase]: 2/114 cut-off events. [2024-11-13 15:44:13,319 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:44:13,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:44:13,320 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:13,320 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-13 15:44:13,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:13,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1178698358, now seen corresponding path program 1 times [2024-11-13 15:44:13,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:13,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514042563] [2024-11-13 15:44:13,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:13,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:44:13,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:13,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514042563] [2024-11-13 15:44:13,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514042563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:13,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:44:13,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:44:13,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186684813] [2024-11-13 15:44:13,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:13,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:44:13,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:13,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:44:13,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:44:14,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 304 [2024-11-13 15:44:14,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 304 transitions, 635 flow. Second operand has 6 states, 6 states have (on average 239.5) internal successors, (1437), 6 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:14,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:44:14,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 304 [2024-11-13 15:44:14,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:44:17,675 INFO L124 PetriNetUnfolderBase]: 8093/26122 cut-off events. [2024-11-13 15:44:17,675 INFO L125 PetriNetUnfolderBase]: For 577/577 co-relation queries the response was YES. [2024-11-13 15:44:17,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37857 conditions, 26122 events. 8093/26122 cut-off events. For 577/577 co-relation queries the response was YES. Maximal size of possible extension queue 736. Compared 309229 event pairs, 2597 based on Foata normal form. 6864/31340 useless extension candidates. Maximal degree in co-relation 6243. Up to 8631 conditions per place. [2024-11-13 15:44:17,810 INFO L140 encePairwiseOnDemand]: 277/304 looper letters, 84 selfloop transitions, 5 changer transitions 0/324 dead transitions. [2024-11-13 15:44:17,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 324 transitions, 853 flow [2024-11-13 15:44:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:44:17,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:44:17,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1587 transitions. [2024-11-13 15:44:17,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8700657894736842 [2024-11-13 15:44:17,815 INFO L175 Difference]: Start difference. First operand has 285 places, 304 transitions, 635 flow. Second operand 6 states and 1587 transitions. [2024-11-13 15:44:17,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 324 transitions, 853 flow [2024-11-13 15:44:17,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 324 transitions, 853 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:44:17,820 INFO L231 Difference]: Finished difference. Result has 283 places, 276 transitions, 589 flow [2024-11-13 15:44:17,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=589, PETRI_PLACES=283, PETRI_TRANSITIONS=276} [2024-11-13 15:44:17,821 INFO L277 CegarLoopForPetriNet]: 285 programPoint places, -2 predicate places. [2024-11-13 15:44:17,821 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 276 transitions, 589 flow [2024-11-13 15:44:17,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.5) internal successors, (1437), 6 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:17,822 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:44:17,823 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:17,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:44:17,823 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-13 15:44:17,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:17,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1741710641, now seen corresponding path program 1 times [2024-11-13 15:44:17,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:17,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107667949] [2024-11-13 15:44:17,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:17,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:44:17,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:17,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107667949] [2024-11-13 15:44:17,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107667949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:17,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:44:17,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:44:17,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466755064] [2024-11-13 15:44:17,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:17,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:44:17,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:17,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:44:17,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:44:17,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 304 [2024-11-13 15:44:17,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 276 transitions, 589 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:17,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:44:17,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 304 [2024-11-13 15:44:17,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:44:29,878 INFO L124 PetriNetUnfolderBase]: 27267/82280 cut-off events. [2024-11-13 15:44:29,878 INFO L125 PetriNetUnfolderBase]: For 2763/4664 co-relation queries the response was YES. [2024-11-13 15:44:30,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121918 conditions, 82280 events. 27267/82280 cut-off events. For 2763/4664 co-relation queries the response was YES. Maximal size of possible extension queue 1773. Compared 1094150 event pairs, 10774 based on Foata normal form. 32/74607 useless extension candidates. Maximal degree in co-relation 109328. Up to 25188 conditions per place. [2024-11-13 15:44:30,492 INFO L140 encePairwiseOnDemand]: 289/304 looper letters, 60 selfloop transitions, 10 changer transitions 0/305 dead transitions. [2024-11-13 15:44:30,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 305 transitions, 808 flow [2024-11-13 15:44:30,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:44:30,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:44:30,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 792 transitions. [2024-11-13 15:44:30,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.868421052631579 [2024-11-13 15:44:30,496 INFO L175 Difference]: Start difference. First operand has 283 places, 276 transitions, 589 flow. Second operand 3 states and 792 transitions. [2024-11-13 15:44:30,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 305 transitions, 808 flow [2024-11-13 15:44:30,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 305 transitions, 798 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:44:30,505 INFO L231 Difference]: Finished difference. Result has 280 places, 282 transitions, 653 flow [2024-11-13 15:44:30,505 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=653, PETRI_PLACES=280, PETRI_TRANSITIONS=282} [2024-11-13 15:44:30,506 INFO L277 CegarLoopForPetriNet]: 285 programPoint places, -5 predicate places. [2024-11-13 15:44:30,506 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 282 transitions, 653 flow [2024-11-13 15:44:30,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:30,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:44:30,507 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:30,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:44:30,508 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-13 15:44:30,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:30,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1623159838, now seen corresponding path program 1 times [2024-11-13 15:44:30,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:30,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587956361] [2024-11-13 15:44:30,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:30,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:30,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:44:30,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:30,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587956361] [2024-11-13 15:44:30,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587956361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:30,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:44:30,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:44:30,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111280944] [2024-11-13 15:44:30,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:30,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:44:30,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:30,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:44:30,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:44:30,779 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 304 [2024-11-13 15:44:30,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 282 transitions, 653 flow. Second operand has 3 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:30,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:44:30,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 304 [2024-11-13 15:44:30,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:44:41,635 INFO L124 PetriNetUnfolderBase]: 16710/68766 cut-off events. [2024-11-13 15:44:41,635 INFO L125 PetriNetUnfolderBase]: For 4175/5435 co-relation queries the response was YES. [2024-11-13 15:44:41,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98204 conditions, 68766 events. 16710/68766 cut-off events. For 4175/5435 co-relation queries the response was YES. Maximal size of possible extension queue 1359. Compared 986733 event pairs, 11681 based on Foata normal form. 1/62462 useless extension candidates. Maximal degree in co-relation 64880. Up to 20086 conditions per place. [2024-11-13 15:44:42,105 INFO L140 encePairwiseOnDemand]: 301/304 looper letters, 33 selfloop transitions, 2 changer transitions 0/287 dead transitions. [2024-11-13 15:44:42,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 287 transitions, 733 flow [2024-11-13 15:44:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:44:42,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:44:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 786 transitions. [2024-11-13 15:44:42,109 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8618421052631579 [2024-11-13 15:44:42,109 INFO L175 Difference]: Start difference. First operand has 280 places, 282 transitions, 653 flow. Second operand 3 states and 786 transitions. [2024-11-13 15:44:42,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 287 transitions, 733 flow [2024-11-13 15:44:42,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 287 transitions, 713 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:44:42,147 INFO L231 Difference]: Finished difference. Result has 281 places, 283 transitions, 645 flow [2024-11-13 15:44:42,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=645, PETRI_PLACES=281, PETRI_TRANSITIONS=283} [2024-11-13 15:44:42,148 INFO L277 CegarLoopForPetriNet]: 285 programPoint places, -4 predicate places. [2024-11-13 15:44:42,149 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 283 transitions, 645 flow [2024-11-13 15:44:42,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:42,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:44:42,150 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:42,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:44:42,150 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-13 15:44:42,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:42,151 INFO L85 PathProgramCache]: Analyzing trace with hash 643344178, now seen corresponding path program 1 times [2024-11-13 15:44:42,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:42,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421098155] [2024-11-13 15:44:42,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:42,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:42,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:44:42,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:42,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421098155] [2024-11-13 15:44:42,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421098155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:44:42,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140268684] [2024-11-13 15:44:42,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:42,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:44:42,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:44:42,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:44:42,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ae3da5-54a2-47cf-8319-245d27d0cf17/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:44:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:42,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:44:42,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:44:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:44:42,526 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:44:42,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140268684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:42,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:44:42,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-13 15:44:42,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316251297] [2024-11-13 15:44:42,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:42,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:44:42,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:42,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:44:42,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:44:42,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 304 [2024-11-13 15:44:42,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 283 transitions, 645 flow. Second operand has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:44:42,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:44:42,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 304 [2024-11-13 15:44:42,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand