./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.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_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/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_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/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_4013e766-f5be-4914-a0af-0a7fb400c4d0/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 e281184c6e6629633efbcea3a2283a3a54dcfd040e15fa389b71c86937ccbf2b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:38:29,057 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:38:29,178 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:38:29,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:38:29,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:38:29,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:38:29,229 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:38:29,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:38:29,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:38:29,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:38:29,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:38:29,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:38:29,232 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:38:29,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:38:29,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:38:29,234 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:38:29,234 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:38:29,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:38:29,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:38:29,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:38:29,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:38:29,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:38:29,235 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:38:29,235 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:38:29,236 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:38:29,236 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:38:29,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:38:29,236 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:38:29,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:38:29,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:38:29,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:38:29,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:38:29,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:38:29,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:38:29,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:38:29,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:38:29,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:38:29,239 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:38:29,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:38:29,239 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:38:29,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:38:29,239 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_4013e766-f5be-4914-a0af-0a7fb400c4d0/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 -> e281184c6e6629633efbcea3a2283a3a54dcfd040e15fa389b71c86937ccbf2b [2024-11-13 15:38:29,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:38:29,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:38:29,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:38:29,633 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:38:29,633 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:38:29,635 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i Unable to find full path for "g++" [2024-11-13 15:38:32,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:38:32,467 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:38:32,468 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i [2024-11-13 15:38:32,490 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/data/15dbf6d73/4e6bd814942d41f3af9433fd82a09eb7/FLAG86cfd07a5 [2024-11-13 15:38:32,690 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/data/15dbf6d73/4e6bd814942d41f3af9433fd82a09eb7 [2024-11-13 15:38:32,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:38:32,695 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:38:32,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:38:32,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:38:32,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:38:32,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:38:32" (1/1) ... [2024-11-13 15:38:32,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754687ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:32, skipping insertion in model container [2024-11-13 15:38:32,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:38:32" (1/1) ... [2024-11-13 15:38:32,754 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:38:33,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:38:33,313 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:38:33,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:38:33,448 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:38:33,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:33 WrapperNode [2024-11-13 15:38:33,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:38:33,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:38:33,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:38:33,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:38:33,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:33" (1/1) ... [2024-11-13 15:38:33,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:33" (1/1) ... [2024-11-13 15:38:33,525 INFO L138 Inliner]: procedures = 268, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-11-13 15:38:33,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:38:33,526 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:38:33,526 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:38:33,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:38:33,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:33" (1/1) ... [2024-11-13 15:38:33,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:33" (1/1) ... [2024-11-13 15:38:33,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:33" (1/1) ... [2024-11-13 15:38:33,549 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:33" (1/1) ... [2024-11-13 15:38:33,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:33" (1/1) ... [2024-11-13 15:38:33,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:33" (1/1) ... [2024-11-13 15:38:33,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:33" (1/1) ... [2024-11-13 15:38:33,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:33" (1/1) ... [2024-11-13 15:38:33,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:38:33,585 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:38:33,585 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:38:33,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:38:33,590 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:33" (1/1) ... [2024-11-13 15:38:33,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:38:33,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:38:33,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:38:33,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:38:33,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:38:33,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 15:38:33,672 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:38:33,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 15:38:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 15:38:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:38:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 15:38:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:38:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 15:38:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-13 15:38:33,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-13 15:38:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:38:33,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:38:33,675 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 15:38:33,875 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:38:33,878 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:38:34,167 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:38:34,168 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:38:34,197 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:38:34,197 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 15:38:34,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:38:34 BoogieIcfgContainer [2024-11-13 15:38:34,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:38:34,202 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:38:34,202 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:38:34,209 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:38:34,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:38:32" (1/3) ... [2024-11-13 15:38:34,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54928043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:38:34, skipping insertion in model container [2024-11-13 15:38:34,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:33" (2/3) ... [2024-11-13 15:38:34,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54928043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:38:34, skipping insertion in model container [2024-11-13 15:38:34,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:38:34" (3/3) ... [2024-11-13 15:38:34,211 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic.i [2024-11-13 15:38:34,232 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:38:34,235 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG thread-join-array-dynamic.i that has 2 procedures, 90 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-13 15:38:34,235 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:38:34,334 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 15:38:34,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 94 transitions, 195 flow [2024-11-13 15:38:34,500 INFO L124 PetriNetUnfolderBase]: 6/128 cut-off events. [2024-11-13 15:38:34,504 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:38:34,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 128 events. 6/128 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 209 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2024-11-13 15:38:34,513 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 94 transitions, 195 flow [2024-11-13 15:38:34,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 94 transitions, 195 flow [2024-11-13 15:38:34,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:38:34,545 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;@549cfa88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:38:34,545 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-13 15:38:34,573 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:38:34,575 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-13 15:38:34,575 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:38:34,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:34,576 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] [2024-11-13 15:38:34,577 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-13 15:38:34,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:34,584 INFO L85 PathProgramCache]: Analyzing trace with hash 658379879, now seen corresponding path program 1 times [2024-11-13 15:38:34,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:34,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672442974] [2024-11-13 15:38:34,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:34,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:34,912 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 15:38:34,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:34,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672442974] [2024-11-13 15:38:34,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672442974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:34,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:34,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:38:34,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252373080] [2024-11-13 15:38:34,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:34,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:38:34,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:34,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:38:34,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:38:34,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 94 [2024-11-13 15:38:34,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 94 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 15:38:34,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:34,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 94 [2024-11-13 15:38:34,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:35,059 INFO L124 PetriNetUnfolderBase]: 8/166 cut-off events. [2024-11-13 15:38:35,059 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-13 15:38:35,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 166 events. 8/166 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 414 event pairs, 1 based on Foata normal form. 8/157 useless extension candidates. Maximal degree in co-relation 122. Up to 16 conditions per place. [2024-11-13 15:38:35,061 INFO L140 encePairwiseOnDemand]: 87/94 looper letters, 8 selfloop transitions, 3 changer transitions 2/95 dead transitions. [2024-11-13 15:38:35,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 95 transitions, 221 flow [2024-11-13 15:38:35,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:38:35,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:38:35,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2024-11-13 15:38:35,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9397163120567376 [2024-11-13 15:38:35,084 INFO L175 Difference]: Start difference. First operand has 93 places, 94 transitions, 195 flow. Second operand 3 states and 265 transitions. [2024-11-13 15:38:35,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 95 transitions, 221 flow [2024-11-13 15:38:35,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 95 transitions, 221 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:38:35,102 INFO L231 Difference]: Finished difference. Result has 97 places, 92 transitions, 209 flow [2024-11-13 15:38:35,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=97, PETRI_TRANSITIONS=92} [2024-11-13 15:38:35,112 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, 4 predicate places. [2024-11-13 15:38:35,112 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 92 transitions, 209 flow [2024-11-13 15:38:35,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 15:38:35,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:35,115 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] [2024-11-13 15:38:35,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:38:35,116 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-13 15:38:35,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:35,117 INFO L85 PathProgramCache]: Analyzing trace with hash -419377819, now seen corresponding path program 1 times [2024-11-13 15:38:35,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:35,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875787487] [2024-11-13 15:38:35,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:35,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:36,115 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 15:38:36,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:36,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875787487] [2024-11-13 15:38:36,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875787487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:36,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:36,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:38:36,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123560919] [2024-11-13 15:38:36,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:36,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:38:36,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:36,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:38:36,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:38:36,385 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 94 [2024-11-13 15:38:36,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 92 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 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 15:38:36,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:36,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 94 [2024-11-13 15:38:36,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:36,605 INFO L124 PetriNetUnfolderBase]: 31/271 cut-off events. [2024-11-13 15:38:36,605 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-13 15:38:36,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 271 events. 31/271 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1199 event pairs, 5 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 305. Up to 62 conditions per place. [2024-11-13 15:38:36,608 INFO L140 encePairwiseOnDemand]: 88/94 looper letters, 24 selfloop transitions, 5 changer transitions 0/99 dead transitions. [2024-11-13 15:38:36,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 99 transitions, 281 flow [2024-11-13 15:38:36,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:38:36,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:38:36,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 444 transitions. [2024-11-13 15:38:36,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7872340425531915 [2024-11-13 15:38:36,619 INFO L175 Difference]: Start difference. First operand has 97 places, 92 transitions, 209 flow. Second operand 6 states and 444 transitions. [2024-11-13 15:38:36,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 99 transitions, 281 flow [2024-11-13 15:38:36,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 99 transitions, 275 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:38:36,627 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 211 flow [2024-11-13 15:38:36,627 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=211, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2024-11-13 15:38:36,628 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, 5 predicate places. [2024-11-13 15:38:36,628 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 211 flow [2024-11-13 15:38:36,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 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 15:38:36,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:36,632 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] [2024-11-13 15:38:36,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:38:36,632 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-13 15:38:36,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:36,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1159132254, now seen corresponding path program 1 times [2024-11-13 15:38:36,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:36,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430531684] [2024-11-13 15:38:36,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:36,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:36,793 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 15:38:36,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:36,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430531684] [2024-11-13 15:38:36,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430531684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:36,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:36,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:38:36,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545310072] [2024-11-13 15:38:36,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:36,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:38:36,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:36,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:38:36,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:38:36,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 94 [2024-11-13 15:38:36,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 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 15:38:36,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:36,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 94 [2024-11-13 15:38:36,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:37,057 INFO L124 PetriNetUnfolderBase]: 17/226 cut-off events. [2024-11-13 15:38:37,058 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 15:38:37,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 226 events. 17/226 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 743 event pairs, 7 based on Foata normal form. 1/213 useless extension candidates. Maximal degree in co-relation 223. Up to 49 conditions per place. [2024-11-13 15:38:37,060 INFO L140 encePairwiseOnDemand]: 86/94 looper letters, 15 selfloop transitions, 2 changer transitions 5/98 dead transitions. [2024-11-13 15:38:37,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 98 transitions, 269 flow [2024-11-13 15:38:37,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:38:37,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:38:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 479 transitions. [2024-11-13 15:38:37,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.849290780141844 [2024-11-13 15:38:37,063 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 211 flow. Second operand 6 states and 479 transitions. [2024-11-13 15:38:37,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 98 transitions, 269 flow [2024-11-13 15:38:37,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 98 transitions, 259 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:38:37,067 INFO L231 Difference]: Finished difference. Result has 102 places, 91 transitions, 219 flow [2024-11-13 15:38:37,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=219, PETRI_PLACES=102, PETRI_TRANSITIONS=91} [2024-11-13 15:38:37,069 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, 9 predicate places. [2024-11-13 15:38:37,069 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 91 transitions, 219 flow [2024-11-13 15:38:37,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 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 15:38:37,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:37,070 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] [2024-11-13 15:38:37,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:38:37,070 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-13 15:38:37,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:37,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1442826119, now seen corresponding path program 1 times [2024-11-13 15:38:37,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:37,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46531223] [2024-11-13 15:38:37,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:37,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:37,157 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 15:38:37,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:37,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46531223] [2024-11-13 15:38:37,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46531223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:37,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:37,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:38:37,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447317091] [2024-11-13 15:38:37,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:37,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:38:37,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:37,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:38:37,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:38:37,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 94 [2024-11-13 15:38:37,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 91 transitions, 219 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 15:38:37,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:37,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 94 [2024-11-13 15:38:37,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:37,234 INFO L124 PetriNetUnfolderBase]: 5/172 cut-off events. [2024-11-13 15:38:37,234 INFO L125 PetriNetUnfolderBase]: For 19/31 co-relation queries the response was YES. [2024-11-13 15:38:37,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 172 events. 5/172 cut-off events. For 19/31 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 477 event pairs, 3 based on Foata normal form. 1/164 useless extension candidates. Maximal degree in co-relation 189. Up to 25 conditions per place. [2024-11-13 15:38:37,236 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 8 selfloop transitions, 4 changer transitions 3/94 dead transitions. [2024-11-13 15:38:37,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 94 transitions, 255 flow [2024-11-13 15:38:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:38:37,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:38:37,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-11-13 15:38:37,239 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9113475177304965 [2024-11-13 15:38:37,239 INFO L175 Difference]: Start difference. First operand has 102 places, 91 transitions, 219 flow. Second operand 3 states and 257 transitions. [2024-11-13 15:38:37,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 94 transitions, 255 flow [2024-11-13 15:38:37,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 94 transitions, 241 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-13 15:38:37,246 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 227 flow [2024-11-13 15:38:37,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2024-11-13 15:38:37,247 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, 5 predicate places. [2024-11-13 15:38:37,248 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 227 flow [2024-11-13 15:38:37,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 15:38:37,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:37,248 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] [2024-11-13 15:38:37,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:38:37,251 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-13 15:38:37,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:37,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1745575876, now seen corresponding path program 1 times [2024-11-13 15:38:37,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:37,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422074576] [2024-11-13 15:38:37,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:37,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:37,905 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 15:38:37,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:37,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422074576] [2024-11-13 15:38:37,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422074576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:37,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:37,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:38:37,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257183868] [2024-11-13 15:38:37,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:37,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:38:37,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:37,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:38:37,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:38:38,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 94 [2024-11-13 15:38:38,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 227 flow. Second operand has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 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 15:38:38,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:38,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 94 [2024-11-13 15:38:38,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:38,270 INFO L124 PetriNetUnfolderBase]: 25/285 cut-off events. [2024-11-13 15:38:38,270 INFO L125 PetriNetUnfolderBase]: For 52/55 co-relation queries the response was YES. [2024-11-13 15:38:38,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 285 events. 25/285 cut-off events. For 52/55 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1231 event pairs, 15 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 370. Up to 55 conditions per place. [2024-11-13 15:38:38,272 INFO L140 encePairwiseOnDemand]: 88/94 looper letters, 12 selfloop transitions, 0 changer transitions 20/98 dead transitions. [2024-11-13 15:38:38,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 98 transitions, 295 flow [2024-11-13 15:38:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:38:38,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:38:38,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 454 transitions. [2024-11-13 15:38:38,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8049645390070922 [2024-11-13 15:38:38,276 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 227 flow. Second operand 6 states and 454 transitions. [2024-11-13 15:38:38,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 98 transitions, 295 flow [2024-11-13 15:38:38,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 98 transitions, 287 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:38:38,283 INFO L231 Difference]: Finished difference. Result has 100 places, 78 transitions, 190 flow [2024-11-13 15:38:38,284 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=190, PETRI_PLACES=100, PETRI_TRANSITIONS=78} [2024-11-13 15:38:38,284 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, 7 predicate places. [2024-11-13 15:38:38,287 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 78 transitions, 190 flow [2024-11-13 15:38:38,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 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 15:38:38,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:38,288 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] [2024-11-13 15:38:38,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:38:38,288 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-13 15:38:38,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:38,289 INFO L85 PathProgramCache]: Analyzing trace with hash 32550948, now seen corresponding path program 1 times [2024-11-13 15:38:38,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:38,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915367657] [2024-11-13 15:38:38,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:38,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:38:38,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:38:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:38:38,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:38:38,401 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:38:38,402 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-13 15:38:38,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-13 15:38:38,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-13 15:38:38,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-13 15:38:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-13 15:38:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-13 15:38:38,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:38:38,409 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-13 15:38:38,415 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:38:38,415 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 15:38:38,451 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 15:38:38,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 112 transitions, 240 flow [2024-11-13 15:38:38,490 INFO L124 PetriNetUnfolderBase]: 11/215 cut-off events. [2024-11-13 15:38:38,492 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 15:38:38,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 215 events. 11/215 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 447 event pairs, 0 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 130. Up to 8 conditions per place. [2024-11-13 15:38:38,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 112 transitions, 240 flow [2024-11-13 15:38:38,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 112 transitions, 240 flow [2024-11-13 15:38:38,497 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:38:38,498 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;@549cfa88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:38:38,502 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-13 15:38:38,512 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:38:38,513 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-13 15:38:38,513 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:38:38,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:38,513 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] [2024-11-13 15:38:38,513 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-13 15:38:38,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:38,514 INFO L85 PathProgramCache]: Analyzing trace with hash 168564951, now seen corresponding path program 1 times [2024-11-13 15:38:38,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:38,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712388218] [2024-11-13 15:38:38,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:38,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:38,556 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 15:38:38,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:38,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712388218] [2024-11-13 15:38:38,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712388218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:38,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:38,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:38:38,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771542359] [2024-11-13 15:38:38,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:38,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:38:38,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:38,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:38:38,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:38:38,579 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 112 [2024-11-13 15:38:38,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 112 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 15:38:38,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:38,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 112 [2024-11-13 15:38:38,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:38,807 INFO L124 PetriNetUnfolderBase]: 119/734 cut-off events. [2024-11-13 15:38:38,809 INFO L125 PetriNetUnfolderBase]: For 44/68 co-relation queries the response was YES. [2024-11-13 15:38:38,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1006 conditions, 734 events. 119/734 cut-off events. For 44/68 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4274 event pairs, 50 based on Foata normal form. 36/685 useless extension candidates. Maximal degree in co-relation 749. Up to 139 conditions per place. [2024-11-13 15:38:38,817 INFO L140 encePairwiseOnDemand]: 104/112 looper letters, 16 selfloop transitions, 4 changer transitions 1/116 dead transitions. [2024-11-13 15:38:38,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 116 transitions, 288 flow [2024-11-13 15:38:38,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:38:38,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:38:38,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2024-11-13 15:38:38,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2024-11-13 15:38:38,822 INFO L175 Difference]: Start difference. First operand has 112 places, 112 transitions, 240 flow. Second operand 3 states and 312 transitions. [2024-11-13 15:38:38,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 116 transitions, 288 flow [2024-11-13 15:38:38,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 116 transitions, 288 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:38:38,828 INFO L231 Difference]: Finished difference. Result has 116 places, 111 transitions, 262 flow [2024-11-13 15:38:38,829 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=116, PETRI_TRANSITIONS=111} [2024-11-13 15:38:38,830 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 4 predicate places. [2024-11-13 15:38:38,831 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 262 flow [2024-11-13 15:38:38,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 15:38:38,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:38,832 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] [2024-11-13 15:38:38,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:38:38,833 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-13 15:38:38,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:38,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1314882517, now seen corresponding path program 1 times [2024-11-13 15:38:38,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:38,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145510362] [2024-11-13 15:38:38,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:38,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:39,279 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 15:38:39,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:39,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145510362] [2024-11-13 15:38:39,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145510362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:39,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:39,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:38:39,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982221552] [2024-11-13 15:38:39,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:39,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:38:39,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:39,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:38:39,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:38:39,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 112 [2024-11-13 15:38:39,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 111 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 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 15:38:39,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:39,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 112 [2024-11-13 15:38:39,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:39,815 INFO L124 PetriNetUnfolderBase]: 299/1288 cut-off events. [2024-11-13 15:38:39,816 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-13 15:38:39,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2019 conditions, 1288 events. 299/1288 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 9543 event pairs, 130 based on Foata normal form. 0/1166 useless extension candidates. Maximal degree in co-relation 1388. Up to 372 conditions per place. [2024-11-13 15:38:39,830 INFO L140 encePairwiseOnDemand]: 106/112 looper letters, 36 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2024-11-13 15:38:39,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 126 transitions, 374 flow [2024-11-13 15:38:39,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:38:39,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:38:39,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 540 transitions. [2024-11-13 15:38:39,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8035714285714286 [2024-11-13 15:38:39,836 INFO L175 Difference]: Start difference. First operand has 116 places, 111 transitions, 262 flow. Second operand 6 states and 540 transitions. [2024-11-13 15:38:39,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 126 transitions, 374 flow [2024-11-13 15:38:39,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 126 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:38:39,843 INFO L231 Difference]: Finished difference. Result has 117 places, 110 transitions, 262 flow [2024-11-13 15:38:39,844 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=262, PETRI_PLACES=117, PETRI_TRANSITIONS=110} [2024-11-13 15:38:39,845 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 5 predicate places. [2024-11-13 15:38:39,845 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 110 transitions, 262 flow [2024-11-13 15:38:39,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 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 15:38:39,845 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:39,845 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] [2024-11-13 15:38:39,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:38:39,846 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-13 15:38:39,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:39,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1401574706, now seen corresponding path program 1 times [2024-11-13 15:38:39,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:39,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381581258] [2024-11-13 15:38:39,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:39,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:39,982 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 15:38:39,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:39,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381581258] [2024-11-13 15:38:39,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381581258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:39,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:39,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:38:39,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179497309] [2024-11-13 15:38:39,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:39,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:38:39,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:39,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:38:39,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:38:40,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 112 [2024-11-13 15:38:40,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 110 transitions, 262 flow. Second operand has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 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 15:38:40,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:40,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 112 [2024-11-13 15:38:40,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:40,459 INFO L124 PetriNetUnfolderBase]: 181/1210 cut-off events. [2024-11-13 15:38:40,459 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-13 15:38:40,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1695 conditions, 1210 events. 181/1210 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 8768 event pairs, 75 based on Foata normal form. 1/1096 useless extension candidates. Maximal degree in co-relation 564. Up to 302 conditions per place. [2024-11-13 15:38:40,471 INFO L140 encePairwiseOnDemand]: 104/112 looper letters, 20 selfloop transitions, 2 changer transitions 5/118 dead transitions. [2024-11-13 15:38:40,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 118 transitions, 332 flow [2024-11-13 15:38:40,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:38:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:38:40,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 568 transitions. [2024-11-13 15:38:40,474 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8452380952380952 [2024-11-13 15:38:40,474 INFO L175 Difference]: Start difference. First operand has 117 places, 110 transitions, 262 flow. Second operand 6 states and 568 transitions. [2024-11-13 15:38:40,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 118 transitions, 332 flow [2024-11-13 15:38:40,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 118 transitions, 322 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:38:40,481 INFO L231 Difference]: Finished difference. Result has 121 places, 111 transitions, 274 flow [2024-11-13 15:38:40,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=274, PETRI_PLACES=121, PETRI_TRANSITIONS=111} [2024-11-13 15:38:40,482 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 9 predicate places. [2024-11-13 15:38:40,484 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 111 transitions, 274 flow [2024-11-13 15:38:40,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 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 15:38:40,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:40,485 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] [2024-11-13 15:38:40,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:38:40,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-13 15:38:40,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:40,486 INFO L85 PathProgramCache]: Analyzing trace with hash 241564377, now seen corresponding path program 1 times [2024-11-13 15:38:40,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:40,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696164044] [2024-11-13 15:38:40,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:40,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:40,545 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 15:38:40,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:40,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696164044] [2024-11-13 15:38:40,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696164044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:40,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:40,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:38:40,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095316583] [2024-11-13 15:38:40,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:40,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:38:40,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:40,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:38:40,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:38:40,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 112 [2024-11-13 15:38:40,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 111 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 15:38:40,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:40,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 112 [2024-11-13 15:38:40,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:40,784 INFO L124 PetriNetUnfolderBase]: 170/1039 cut-off events. [2024-11-13 15:38:40,784 INFO L125 PetriNetUnfolderBase]: For 177/304 co-relation queries the response was YES. [2024-11-13 15:38:40,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1652 conditions, 1039 events. 170/1039 cut-off events. For 177/304 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7433 event pairs, 74 based on Foata normal form. 4/915 useless extension candidates. Maximal degree in co-relation 1591. Up to 268 conditions per place. [2024-11-13 15:38:40,791 INFO L140 encePairwiseOnDemand]: 106/112 looper letters, 19 selfloop transitions, 7 changer transitions 0/120 dead transitions. [2024-11-13 15:38:40,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 120 transitions, 358 flow [2024-11-13 15:38:40,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:38:40,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:38:40,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2024-11-13 15:38:40,793 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9107142857142857 [2024-11-13 15:38:40,793 INFO L175 Difference]: Start difference. First operand has 121 places, 111 transitions, 274 flow. Second operand 3 states and 306 transitions. [2024-11-13 15:38:40,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 120 transitions, 358 flow [2024-11-13 15:38:40,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 120 transitions, 346 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-13 15:38:40,798 INFO L231 Difference]: Finished difference. Result has 118 places, 116 transitions, 318 flow [2024-11-13 15:38:40,799 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=118, PETRI_TRANSITIONS=116} [2024-11-13 15:38:40,800 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 6 predicate places. [2024-11-13 15:38:40,800 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 116 transitions, 318 flow [2024-11-13 15:38:40,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 15:38:40,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:40,801 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] [2024-11-13 15:38:40,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:38:40,801 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-13 15:38:40,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:40,802 INFO L85 PathProgramCache]: Analyzing trace with hash -359069620, now seen corresponding path program 1 times [2024-11-13 15:38:40,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:40,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420782456] [2024-11-13 15:38:40,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:40,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:41,256 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 15:38:41,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:41,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420782456] [2024-11-13 15:38:41,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420782456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:41,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:41,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:38:41,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024580536] [2024-11-13 15:38:41,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:41,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:38:41,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:41,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:38:41,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:38:41,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 112 [2024-11-13 15:38:41,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 116 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 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 15:38:41,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:41,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 112 [2024-11-13 15:38:41,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:41,823 INFO L124 PetriNetUnfolderBase]: 358/1843 cut-off events. [2024-11-13 15:38:41,823 INFO L125 PetriNetUnfolderBase]: For 304/352 co-relation queries the response was YES. [2024-11-13 15:38:41,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3022 conditions, 1843 events. 358/1843 cut-off events. For 304/352 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 15576 event pairs, 179 based on Foata normal form. 4/1687 useless extension candidates. Maximal degree in co-relation 2433. Up to 362 conditions per place. [2024-11-13 15:38:41,835 INFO L140 encePairwiseOnDemand]: 106/112 looper letters, 34 selfloop transitions, 5 changer transitions 0/131 dead transitions. [2024-11-13 15:38:41,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 131 transitions, 426 flow [2024-11-13 15:38:41,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:38:41,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:38:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions. [2024-11-13 15:38:41,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8184523809523809 [2024-11-13 15:38:41,838 INFO L175 Difference]: Start difference. First operand has 118 places, 116 transitions, 318 flow. Second operand 6 states and 550 transitions. [2024-11-13 15:38:41,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 131 transitions, 426 flow [2024-11-13 15:38:41,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 131 transitions, 412 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:38:41,844 INFO L231 Difference]: Finished difference. Result has 120 places, 115 transitions, 312 flow [2024-11-13 15:38:41,845 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=120, PETRI_TRANSITIONS=115} [2024-11-13 15:38:41,847 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 8 predicate places. [2024-11-13 15:38:41,847 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 115 transitions, 312 flow [2024-11-13 15:38:41,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 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 15:38:41,848 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:41,848 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] [2024-11-13 15:38:41,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:38:41,848 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-13 15:38:41,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:41,849 INFO L85 PathProgramCache]: Analyzing trace with hash -657413796, now seen corresponding path program 1 times [2024-11-13 15:38:41,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:41,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996570658] [2024-11-13 15:38:41,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:41,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:41,993 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 15:38:41,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:41,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996570658] [2024-11-13 15:38:41,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996570658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:38:41,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851552725] [2024-11-13 15:38:41,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:41,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:38:41,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:38:41,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:38:42,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:38:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:42,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:38:42,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:38:42,237 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 15:38:42,237 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:38:42,324 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 15:38:42,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851552725] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:38:42,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:38:42,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-13 15:38:42,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635106076] [2024-11-13 15:38:42,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:38:42,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:38:42,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:42,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:38:42,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:38:42,549 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 112 [2024-11-13 15:38:42,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 115 transitions, 312 flow. Second operand has 9 states, 9 states have (on average 90.22222222222223) internal successors, (812), 9 states have internal predecessors, (812), 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 15:38:42,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:42,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 112 [2024-11-13 15:38:42,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:42,896 INFO L124 PetriNetUnfolderBase]: 161/1011 cut-off events. [2024-11-13 15:38:42,896 INFO L125 PetriNetUnfolderBase]: For 132/155 co-relation queries the response was YES. [2024-11-13 15:38:42,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1634 conditions, 1011 events. 161/1011 cut-off events. For 132/155 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6841 event pairs, 35 based on Foata normal form. 0/939 useless extension candidates. Maximal degree in co-relation 955. Up to 157 conditions per place. [2024-11-13 15:38:42,904 INFO L140 encePairwiseOnDemand]: 102/112 looper letters, 27 selfloop transitions, 9 changer transitions 9/137 dead transitions. [2024-11-13 15:38:42,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 137 transitions, 450 flow [2024-11-13 15:38:42,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:38:42,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 15:38:42,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 750 transitions. [2024-11-13 15:38:42,908 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8370535714285714 [2024-11-13 15:38:42,909 INFO L175 Difference]: Start difference. First operand has 120 places, 115 transitions, 312 flow. Second operand 8 states and 750 transitions. [2024-11-13 15:38:42,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 137 transitions, 450 flow [2024-11-13 15:38:42,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 137 transitions, 438 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:38:42,914 INFO L231 Difference]: Finished difference. Result has 125 places, 116 transitions, 335 flow [2024-11-13 15:38:42,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=335, PETRI_PLACES=125, PETRI_TRANSITIONS=116} [2024-11-13 15:38:42,916 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 13 predicate places. [2024-11-13 15:38:42,917 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 116 transitions, 335 flow [2024-11-13 15:38:42,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 90.22222222222223) internal successors, (812), 9 states have internal predecessors, (812), 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 15:38:42,918 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:42,919 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] [2024-11-13 15:38:42,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:38:43,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 15:38:43,120 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-13 15:38:43,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:43,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1148814330, now seen corresponding path program 1 times [2024-11-13 15:38:43,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:43,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974148579] [2024-11-13 15:38:43,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:43,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 15:38:43,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:43,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974148579] [2024-11-13 15:38:43,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974148579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:43,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:43,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:38:43,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635422775] [2024-11-13 15:38:43,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:43,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:38:43,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:43,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:38:43,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:38:43,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 112 [2024-11-13 15:38:43,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 116 transitions, 335 flow. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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 15:38:43,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:43,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 112 [2024-11-13 15:38:43,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:43,393 INFO L124 PetriNetUnfolderBase]: 56/631 cut-off events. [2024-11-13 15:38:43,393 INFO L125 PetriNetUnfolderBase]: For 207/272 co-relation queries the response was YES. [2024-11-13 15:38:43,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1066 conditions, 631 events. 56/631 cut-off events. For 207/272 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3807 event pairs, 30 based on Foata normal form. 3/611 useless extension candidates. Maximal degree in co-relation 935. Up to 119 conditions per place. [2024-11-13 15:38:43,399 INFO L140 encePairwiseOnDemand]: 106/112 looper letters, 19 selfloop transitions, 7 changer transitions 1/123 dead transitions. [2024-11-13 15:38:43,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 123 transitions, 412 flow [2024-11-13 15:38:43,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:38:43,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:38:43,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2024-11-13 15:38:43,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9077380952380952 [2024-11-13 15:38:43,402 INFO L175 Difference]: Start difference. First operand has 125 places, 116 transitions, 335 flow. Second operand 3 states and 305 transitions. [2024-11-13 15:38:43,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 123 transitions, 412 flow [2024-11-13 15:38:43,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 123 transitions, 406 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 15:38:43,406 INFO L231 Difference]: Finished difference. Result has 126 places, 119 transitions, 379 flow [2024-11-13 15:38:43,407 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=126, PETRI_TRANSITIONS=119} [2024-11-13 15:38:43,407 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 14 predicate places. [2024-11-13 15:38:43,407 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 119 transitions, 379 flow [2024-11-13 15:38:43,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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 15:38:43,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:43,408 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 15:38:43,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:38:43,408 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-13 15:38:43,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:43,408 INFO L85 PathProgramCache]: Analyzing trace with hash 53307057, now seen corresponding path program 1 times [2024-11-13 15:38:43,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:43,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202638553] [2024-11-13 15:38:43,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:43,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:38:43,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:38:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:38:43,496 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:38:43,496 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:38:43,496 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-13 15:38:43,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-13 15:38:43,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-13 15:38:43,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-13 15:38:43,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-13 15:38:43,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-13 15:38:43,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-13 15:38:43,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:38:43,498 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:38:43,499 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:38:43,499 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-13 15:38:43,539 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 15:38:43,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 130 transitions, 287 flow [2024-11-13 15:38:43,595 INFO L124 PetriNetUnfolderBase]: 21/353 cut-off events. [2024-11-13 15:38:43,596 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-13 15:38:43,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 353 events. 21/353 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 961 event pairs, 1 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 223. Up to 16 conditions per place. [2024-11-13 15:38:43,597 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 130 transitions, 287 flow [2024-11-13 15:38:43,601 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 130 transitions, 287 flow [2024-11-13 15:38:43,602 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:38:43,603 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;@549cfa88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:38:43,603 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-13 15:38:43,611 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:38:43,611 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-13 15:38:43,611 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:38:43,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:43,611 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] [2024-11-13 15:38:43,612 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-13 15:38:43,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:43,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1517425881, now seen corresponding path program 1 times [2024-11-13 15:38:43,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:43,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541907521] [2024-11-13 15:38:43,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:43,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:43,658 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 15:38:43,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:43,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541907521] [2024-11-13 15:38:43,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541907521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:43,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:43,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:38:43,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622445591] [2024-11-13 15:38:43,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:43,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:38:43,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:43,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:38:43,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:38:43,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 130 [2024-11-13 15:38:43,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 130 transitions, 287 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 15:38:43,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:43,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 130 [2024-11-13 15:38:43,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:44,459 INFO L124 PetriNetUnfolderBase]: 1071/4025 cut-off events. [2024-11-13 15:38:44,459 INFO L125 PetriNetUnfolderBase]: For 375/480 co-relation queries the response was YES. [2024-11-13 15:38:44,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5940 conditions, 4025 events. 1071/4025 cut-off events. For 375/480 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 36363 event pairs, 542 based on Foata normal form. 180/3764 useless extension candidates. Maximal degree in co-relation 4652. Up to 1110 conditions per place. [2024-11-13 15:38:44,493 INFO L140 encePairwiseOnDemand]: 121/130 looper letters, 23 selfloop transitions, 5 changer transitions 1/137 dead transitions. [2024-11-13 15:38:44,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 137 transitions, 357 flow [2024-11-13 15:38:44,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:38:44,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:38:44,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2024-11-13 15:38:44,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9205128205128205 [2024-11-13 15:38:44,495 INFO L175 Difference]: Start difference. First operand has 131 places, 130 transitions, 287 flow. Second operand 3 states and 359 transitions. [2024-11-13 15:38:44,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 137 transitions, 357 flow [2024-11-13 15:38:44,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 137 transitions, 357 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:38:44,501 INFO L231 Difference]: Finished difference. Result has 135 places, 130 transitions, 317 flow [2024-11-13 15:38:44,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=317, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2024-11-13 15:38:44,502 INFO L277 CegarLoopForPetriNet]: 131 programPoint places, 4 predicate places. [2024-11-13 15:38:44,502 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 317 flow [2024-11-13 15:38:44,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 15:38:44,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:44,503 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] [2024-11-13 15:38:44,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:38:44,504 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-13 15:38:44,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:44,504 INFO L85 PathProgramCache]: Analyzing trace with hash 490117015, now seen corresponding path program 1 times [2024-11-13 15:38:44,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:44,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447505210] [2024-11-13 15:38:44,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:44,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:44,894 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 15:38:44,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:44,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447505210] [2024-11-13 15:38:44,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447505210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:44,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:44,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:38:44,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416830647] [2024-11-13 15:38:44,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:44,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:38:44,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:44,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:38:44,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:38:45,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 130 [2024-11-13 15:38:45,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 317 flow. Second operand has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 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 15:38:45,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:45,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 130 [2024-11-13 15:38:45,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:46,494 INFO L124 PetriNetUnfolderBase]: 1992/6699 cut-off events. [2024-11-13 15:38:46,494 INFO L125 PetriNetUnfolderBase]: For 492/492 co-relation queries the response was YES. [2024-11-13 15:38:46,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10667 conditions, 6699 events. 1992/6699 cut-off events. For 492/492 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 66984 event pairs, 898 based on Foata normal form. 0/6021 useless extension candidates. Maximal degree in co-relation 6905. Up to 2168 conditions per place. [2024-11-13 15:38:46,563 INFO L140 encePairwiseOnDemand]: 124/130 looper letters, 48 selfloop transitions, 5 changer transitions 0/153 dead transitions. [2024-11-13 15:38:46,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 153 transitions, 469 flow [2024-11-13 15:38:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:38:46,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:38:46,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 636 transitions. [2024-11-13 15:38:46,566 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8153846153846154 [2024-11-13 15:38:46,566 INFO L175 Difference]: Start difference. First operand has 135 places, 130 transitions, 317 flow. Second operand 6 states and 636 transitions. [2024-11-13 15:38:46,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 153 transitions, 469 flow [2024-11-13 15:38:46,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 153 transitions, 459 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:38:46,576 INFO L231 Difference]: Finished difference. Result has 136 places, 129 transitions, 315 flow [2024-11-13 15:38:46,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=315, PETRI_PLACES=136, PETRI_TRANSITIONS=129} [2024-11-13 15:38:46,578 INFO L277 CegarLoopForPetriNet]: 131 programPoint places, 5 predicate places. [2024-11-13 15:38:46,578 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 129 transitions, 315 flow [2024-11-13 15:38:46,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 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 15:38:46,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:46,579 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] [2024-11-13 15:38:46,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:38:46,579 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-13 15:38:46,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:46,580 INFO L85 PathProgramCache]: Analyzing trace with hash 2068627088, now seen corresponding path program 1 times [2024-11-13 15:38:46,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:46,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109383363] [2024-11-13 15:38:46,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:46,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:46,675 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 15:38:46,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:46,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109383363] [2024-11-13 15:38:46,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109383363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:46,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:46,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:38:46,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781679645] [2024-11-13 15:38:46,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:46,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:38:46,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:46,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:38:46,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:38:46,802 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 130 [2024-11-13 15:38:46,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 129 transitions, 315 flow. Second operand has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 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 15:38:46,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:46,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 130 [2024-11-13 15:38:46,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:47,837 INFO L124 PetriNetUnfolderBase]: 1326/6244 cut-off events. [2024-11-13 15:38:47,837 INFO L125 PetriNetUnfolderBase]: For 229/229 co-relation queries the response was YES. [2024-11-13 15:38:47,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8876 conditions, 6244 events. 1326/6244 cut-off events. For 229/229 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 63355 event pairs, 760 based on Foata normal form. 1/5486 useless extension candidates. Maximal degree in co-relation 3021. Up to 1720 conditions per place. [2024-11-13 15:38:47,883 INFO L140 encePairwiseOnDemand]: 122/130 looper letters, 24 selfloop transitions, 2 changer transitions 5/137 dead transitions. [2024-11-13 15:38:47,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 137 transitions, 393 flow [2024-11-13 15:38:47,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:38:47,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:38:47,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 656 transitions. [2024-11-13 15:38:47,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.841025641025641 [2024-11-13 15:38:47,886 INFO L175 Difference]: Start difference. First operand has 136 places, 129 transitions, 315 flow. Second operand 6 states and 656 transitions. [2024-11-13 15:38:47,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 137 transitions, 393 flow [2024-11-13 15:38:47,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 137 transitions, 383 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:38:47,890 INFO L231 Difference]: Finished difference. Result has 140 places, 130 transitions, 327 flow [2024-11-13 15:38:47,890 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=327, PETRI_PLACES=140, PETRI_TRANSITIONS=130} [2024-11-13 15:38:47,891 INFO L277 CegarLoopForPetriNet]: 131 programPoint places, 9 predicate places. [2024-11-13 15:38:47,891 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 130 transitions, 327 flow [2024-11-13 15:38:47,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 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 15:38:47,892 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:47,892 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] [2024-11-13 15:38:47,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 15:38:47,892 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-13 15:38:47,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:47,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1004963989, now seen corresponding path program 1 times [2024-11-13 15:38:47,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:47,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287709323] [2024-11-13 15:38:47,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:47,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:47,934 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 15:38:47,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:47,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287709323] [2024-11-13 15:38:47,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287709323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:47,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:47,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:38:47,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417780565] [2024-11-13 15:38:47,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:47,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:38:47,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:47,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:38:47,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:38:47,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 130 [2024-11-13 15:38:47,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 130 transitions, 327 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 15:38:47,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:47,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 130 [2024-11-13 15:38:47,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:49,317 INFO L124 PetriNetUnfolderBase]: 1740/6606 cut-off events. [2024-11-13 15:38:49,318 INFO L125 PetriNetUnfolderBase]: For 1550/2155 co-relation queries the response was YES. [2024-11-13 15:38:49,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11197 conditions, 6606 events. 1740/6606 cut-off events. For 1550/2155 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 68626 event pairs, 967 based on Foata normal form. 10/5865 useless extension candidates. Maximal degree in co-relation 11135. Up to 2240 conditions per place. [2024-11-13 15:38:49,404 INFO L140 encePairwiseOnDemand]: 123/130 looper letters, 29 selfloop transitions, 9 changer transitions 0/145 dead transitions. [2024-11-13 15:38:49,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 145 transitions, 461 flow [2024-11-13 15:38:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:38:49,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:38:49,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2024-11-13 15:38:49,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9102564102564102 [2024-11-13 15:38:49,407 INFO L175 Difference]: Start difference. First operand has 140 places, 130 transitions, 327 flow. Second operand 3 states and 355 transitions. [2024-11-13 15:38:49,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 145 transitions, 461 flow [2024-11-13 15:38:49,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 145 transitions, 449 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-13 15:38:49,432 INFO L231 Difference]: Finished difference. Result has 137 places, 137 transitions, 391 flow [2024-11-13 15:38:49,433 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=391, PETRI_PLACES=137, PETRI_TRANSITIONS=137} [2024-11-13 15:38:49,433 INFO L277 CegarLoopForPetriNet]: 131 programPoint places, 6 predicate places. [2024-11-13 15:38:49,434 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 137 transitions, 391 flow [2024-11-13 15:38:49,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 15:38:49,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:49,435 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] [2024-11-13 15:38:49,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 15:38:49,435 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-13 15:38:49,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:49,436 INFO L85 PathProgramCache]: Analyzing trace with hash -312275108, now seen corresponding path program 1 times [2024-11-13 15:38:49,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:49,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243626856] [2024-11-13 15:38:49,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:49,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:49,921 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 15:38:49,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:49,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243626856] [2024-11-13 15:38:49,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243626856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:49,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:49,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:38:49,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440321274] [2024-11-13 15:38:49,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:49,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:38:49,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:49,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:38:49,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:38:50,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 130 [2024-11-13 15:38:50,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 137 transitions, 391 flow. Second operand has 6 states, 6 states have (on average 101.16666666666667) internal successors, (607), 6 states have internal predecessors, (607), 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 15:38:50,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:50,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 130 [2024-11-13 15:38:50,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:51,594 INFO L124 PetriNetUnfolderBase]: 2874/10396 cut-off events. [2024-11-13 15:38:51,594 INFO L125 PetriNetUnfolderBase]: For 1708/2277 co-relation queries the response was YES. [2024-11-13 15:38:51,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17546 conditions, 10396 events. 2874/10396 cut-off events. For 1708/2277 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 114934 event pairs, 1408 based on Foata normal form. 27/9253 useless extension candidates. Maximal degree in co-relation 13956. Up to 2157 conditions per place. [2024-11-13 15:38:51,685 INFO L140 encePairwiseOnDemand]: 124/130 looper letters, 46 selfloop transitions, 5 changer transitions 0/160 dead transitions. [2024-11-13 15:38:51,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 160 transitions, 539 flow [2024-11-13 15:38:51,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:38:51,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:38:51,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 646 transitions. [2024-11-13 15:38:51,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8282051282051283 [2024-11-13 15:38:51,688 INFO L175 Difference]: Start difference. First operand has 137 places, 137 transitions, 391 flow. Second operand 6 states and 646 transitions. [2024-11-13 15:38:51,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 160 transitions, 539 flow [2024-11-13 15:38:51,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 160 transitions, 521 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:38:51,701 INFO L231 Difference]: Finished difference. Result has 139 places, 136 transitions, 381 flow [2024-11-13 15:38:51,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=381, PETRI_PLACES=139, PETRI_TRANSITIONS=136} [2024-11-13 15:38:51,702 INFO L277 CegarLoopForPetriNet]: 131 programPoint places, 8 predicate places. [2024-11-13 15:38:51,702 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 136 transitions, 381 flow [2024-11-13 15:38:51,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.16666666666667) internal successors, (607), 6 states have internal predecessors, (607), 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 15:38:51,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:51,703 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] [2024-11-13 15:38:51,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 15:38:51,703 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-13 15:38:51,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:51,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1029941460, now seen corresponding path program 1 times [2024-11-13 15:38:51,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:51,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815985336] [2024-11-13 15:38:51,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:51,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:51,826 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 15:38:51,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:51,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815985336] [2024-11-13 15:38:51,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815985336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:38:51,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895514229] [2024-11-13 15:38:51,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:51,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:38:51,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:38:51,830 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:38:51,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:38:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:51,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:38:51,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:38:52,054 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 15:38:52,055 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:38:52,137 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 15:38:52,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895514229] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:38:52,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:38:52,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-13 15:38:52,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063479782] [2024-11-13 15:38:52,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:38:52,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:38:52,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:52,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:38:52,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:38:52,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 130 [2024-11-13 15:38:52,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 136 transitions, 381 flow. Second operand has 9 states, 9 states have (on average 104.22222222222223) internal successors, (938), 9 states have internal predecessors, (938), 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 15:38:52,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:52,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 130 [2024-11-13 15:38:52,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:53,510 INFO L124 PetriNetUnfolderBase]: 1463/6287 cut-off events. [2024-11-13 15:38:53,510 INFO L125 PetriNetUnfolderBase]: For 936/1164 co-relation queries the response was YES. [2024-11-13 15:38:53,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10557 conditions, 6287 events. 1463/6287 cut-off events. For 936/1164 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 63687 event pairs, 577 based on Foata normal form. 1/5653 useless extension candidates. Maximal degree in co-relation 5110. Up to 1049 conditions per place. [2024-11-13 15:38:53,550 INFO L140 encePairwiseOnDemand]: 120/130 looper letters, 48 selfloop transitions, 10 changer transitions 0/168 dead transitions. [2024-11-13 15:38:53,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 168 transitions, 572 flow [2024-11-13 15:38:53,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:38:53,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 15:38:53,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 875 transitions. [2024-11-13 15:38:53,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8413461538461539 [2024-11-13 15:38:53,554 INFO L175 Difference]: Start difference. First operand has 139 places, 136 transitions, 381 flow. Second operand 8 states and 875 transitions. [2024-11-13 15:38:53,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 168 transitions, 572 flow [2024-11-13 15:38:53,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 168 transitions, 560 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:38:53,562 INFO L231 Difference]: Finished difference. Result has 144 places, 139 transitions, 415 flow [2024-11-13 15:38:53,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=415, PETRI_PLACES=144, PETRI_TRANSITIONS=139} [2024-11-13 15:38:53,563 INFO L277 CegarLoopForPetriNet]: 131 programPoint places, 13 predicate places. [2024-11-13 15:38:53,563 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 139 transitions, 415 flow [2024-11-13 15:38:53,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 104.22222222222223) internal successors, (938), 9 states have internal predecessors, (938), 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 15:38:53,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:53,564 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] [2024-11-13 15:38:53,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:38:53,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:38:53,766 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-13 15:38:53,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:53,766 INFO L85 PathProgramCache]: Analyzing trace with hash -132140474, now seen corresponding path program 1 times [2024-11-13 15:38:53,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:53,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371598658] [2024-11-13 15:38:53,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:53,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:53,829 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 15:38:53,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:53,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371598658] [2024-11-13 15:38:53,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371598658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:53,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:53,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:38:53,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404197097] [2024-11-13 15:38:53,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:53,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:38:53,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:53,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:38:53,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:38:53,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 130 [2024-11-13 15:38:53,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 415 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 15:38:53,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:53,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 130 [2024-11-13 15:38:53,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:54,816 INFO L124 PetriNetUnfolderBase]: 1081/5174 cut-off events. [2024-11-13 15:38:54,817 INFO L125 PetriNetUnfolderBase]: For 2604/3078 co-relation queries the response was YES. [2024-11-13 15:38:54,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9504 conditions, 5174 events. 1081/5174 cut-off events. For 2604/3078 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 54436 event pairs, 542 based on Foata normal form. 20/4738 useless extension candidates. Maximal degree in co-relation 8584. Up to 1420 conditions per place. [2024-11-13 15:38:54,858 INFO L140 encePairwiseOnDemand]: 123/130 looper letters, 31 selfloop transitions, 13 changer transitions 0/155 dead transitions. [2024-11-13 15:38:54,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 155 transitions, 576 flow [2024-11-13 15:38:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:38:54,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:38:54,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2024-11-13 15:38:54,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9076923076923077 [2024-11-13 15:38:54,860 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 415 flow. Second operand 3 states and 354 transitions. [2024-11-13 15:38:54,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 155 transitions, 576 flow [2024-11-13 15:38:54,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 155 transitions, 570 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 15:38:54,869 INFO L231 Difference]: Finished difference. Result has 145 places, 148 transitions, 527 flow [2024-11-13 15:38:54,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=527, PETRI_PLACES=145, PETRI_TRANSITIONS=148} [2024-11-13 15:38:54,870 INFO L277 CegarLoopForPetriNet]: 131 programPoint places, 14 predicate places. [2024-11-13 15:38:54,870 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 148 transitions, 527 flow [2024-11-13 15:38:54,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 15:38:54,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:54,871 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] [2024-11-13 15:38:54,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 15:38:54,871 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-13 15:38:54,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:54,872 INFO L85 PathProgramCache]: Analyzing trace with hash -314997226, now seen corresponding path program 1 times [2024-11-13 15:38:54,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:54,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210177319] [2024-11-13 15:38:54,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:54,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:55,017 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 15:38:55,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:55,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210177319] [2024-11-13 15:38:55,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210177319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:55,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:55,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:38:55,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898979595] [2024-11-13 15:38:55,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:55,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:38:55,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:55,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:38:55,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:38:55,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 130 [2024-11-13 15:38:55,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 148 transitions, 527 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 15:38:55,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:55,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 130 [2024-11-13 15:38:55,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:55,427 INFO L124 PetriNetUnfolderBase]: 124/1679 cut-off events. [2024-11-13 15:38:55,427 INFO L125 PetriNetUnfolderBase]: For 732/821 co-relation queries the response was YES. [2024-11-13 15:38:55,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2849 conditions, 1679 events. 124/1679 cut-off events. For 732/821 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 13835 event pairs, 20 based on Foata normal form. 21/1632 useless extension candidates. Maximal degree in co-relation 1136. Up to 142 conditions per place. [2024-11-13 15:38:55,441 INFO L140 encePairwiseOnDemand]: 124/130 looper letters, 12 selfloop transitions, 6 changer transitions 0/143 dead transitions. [2024-11-13 15:38:55,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 143 transitions, 500 flow [2024-11-13 15:38:55,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:38:55,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:38:55,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2024-11-13 15:38:55,443 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9307692307692308 [2024-11-13 15:38:55,444 INFO L175 Difference]: Start difference. First operand has 145 places, 148 transitions, 527 flow. Second operand 3 states and 363 transitions. [2024-11-13 15:38:55,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 143 transitions, 500 flow [2024-11-13 15:38:55,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 143 transitions, 486 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-13 15:38:55,452 INFO L231 Difference]: Finished difference. Result has 145 places, 138 transitions, 431 flow [2024-11-13 15:38:55,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=431, PETRI_PLACES=145, PETRI_TRANSITIONS=138} [2024-11-13 15:38:55,453 INFO L277 CegarLoopForPetriNet]: 131 programPoint places, 14 predicate places. [2024-11-13 15:38:55,453 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 138 transitions, 431 flow [2024-11-13 15:38:55,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 15:38:55,454 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:55,454 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 15:38:55,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 15:38:55,454 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-13 15:38:55,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:55,455 INFO L85 PathProgramCache]: Analyzing trace with hash 567266250, now seen corresponding path program 1 times [2024-11-13 15:38:55,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:55,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725763296] [2024-11-13 15:38:55,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:55,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:55,540 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 15:38:55,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:55,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725763296] [2024-11-13 15:38:55,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725763296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:55,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:55,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:38:55,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185024055] [2024-11-13 15:38:55,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:55,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:38:55,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:55,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:38:55,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:38:55,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 130 [2024-11-13 15:38:55,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 138 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 15:38:55,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:55,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 130 [2024-11-13 15:38:55,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:56,116 INFO L124 PetriNetUnfolderBase]: 203/1861 cut-off events. [2024-11-13 15:38:56,116 INFO L125 PetriNetUnfolderBase]: For 1345/1410 co-relation queries the response was YES. [2024-11-13 15:38:56,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3572 conditions, 1861 events. 203/1861 cut-off events. For 1345/1410 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 16395 event pairs, 134 based on Foata normal form. 3/1772 useless extension candidates. Maximal degree in co-relation 2979. Up to 435 conditions per place. [2024-11-13 15:38:56,128 INFO L140 encePairwiseOnDemand]: 125/130 looper letters, 25 selfloop transitions, 5 changer transitions 0/143 dead transitions. [2024-11-13 15:38:56,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 143 transitions, 513 flow [2024-11-13 15:38:56,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:38:56,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:38:56,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2024-11-13 15:38:56,131 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8897435897435897 [2024-11-13 15:38:56,131 INFO L175 Difference]: Start difference. First operand has 145 places, 138 transitions, 431 flow. Second operand 3 states and 347 transitions. [2024-11-13 15:38:56,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 143 transitions, 513 flow [2024-11-13 15:38:56,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 143 transitions, 507 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:38:56,138 INFO L231 Difference]: Finished difference. Result has 148 places, 141 transitions, 465 flow [2024-11-13 15:38:56,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=465, PETRI_PLACES=148, PETRI_TRANSITIONS=141} [2024-11-13 15:38:56,139 INFO L277 CegarLoopForPetriNet]: 131 programPoint places, 17 predicate places. [2024-11-13 15:38:56,139 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 141 transitions, 465 flow [2024-11-13 15:38:56,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 15:38:56,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:56,140 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:38:56,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 15:38:56,140 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-13 15:38:56,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:56,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1331526549, now seen corresponding path program 1 times [2024-11-13 15:38:56,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:56,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368796307] [2024-11-13 15:38:56,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:56,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:38:56,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:38:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:38:56,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:38:56,253 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:38:56,253 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-13 15:38:56,253 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-13 15:38:56,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-13 15:38:56,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-13 15:38:56,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-13 15:38:56,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-13 15:38:56,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-13 15:38:56,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-13 15:38:56,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 15:38:56,255 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:38:56,257 WARN L247 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:38:56,257 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-13 15:38:56,300 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-13 15:38:56,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 148 transitions, 336 flow [2024-11-13 15:38:56,418 INFO L124 PetriNetUnfolderBase]: 43/595 cut-off events. [2024-11-13 15:38:56,418 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-13 15:38:56,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 595 events. 43/595 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2111 event pairs, 6 based on Foata normal form. 0/511 useless extension candidates. Maximal degree in co-relation 373. Up to 32 conditions per place. [2024-11-13 15:38:56,420 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 148 transitions, 336 flow [2024-11-13 15:38:56,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 148 transitions, 336 flow [2024-11-13 15:38:56,427 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:38:56,427 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;@549cfa88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:38:56,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-13 15:38:56,433 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:38:56,433 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-13 15:38:56,434 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:38:56,434 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:56,434 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] [2024-11-13 15:38:56,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:38:56,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:56,435 INFO L85 PathProgramCache]: Analyzing trace with hash 409995373, now seen corresponding path program 1 times [2024-11-13 15:38:56,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:56,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051885971] [2024-11-13 15:38:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:56,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:38:56,465 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 15:38:56,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:38:56,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051885971] [2024-11-13 15:38:56,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051885971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:38:56,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:38:56,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:38:56,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758459506] [2024-11-13 15:38:56,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:38:56,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:38:56,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:38:56,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:38:56,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:38:56,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 148 [2024-11-13 15:38:56,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 148 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 15:38:56,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:38:56,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 148 [2024-11-13 15:38:56,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:38:59,556 INFO L124 PetriNetUnfolderBase]: 7859/23538 cut-off events. [2024-11-13 15:38:59,556 INFO L125 PetriNetUnfolderBase]: For 2546/2897 co-relation queries the response was YES. [2024-11-13 15:38:59,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35888 conditions, 23538 events. 7859/23538 cut-off events. For 2546/2897 co-relation queries the response was YES. Maximal size of possible extension queue 779. Compared 271298 event pairs, 4292 based on Foata normal form. 871/22189 useless extension candidates. Maximal degree in co-relation 28583. Up to 7653 conditions per place. [2024-11-13 15:38:59,743 INFO L140 encePairwiseOnDemand]: 138/148 looper letters, 30 selfloop transitions, 6 changer transitions 1/158 dead transitions. [2024-11-13 15:38:59,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 158 transitions, 428 flow [2024-11-13 15:38:59,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:38:59,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:38:59,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2024-11-13 15:38:59,746 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9144144144144144 [2024-11-13 15:38:59,746 INFO L175 Difference]: Start difference. First operand has 150 places, 148 transitions, 336 flow. Second operand 3 states and 406 transitions. [2024-11-13 15:38:59,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 158 transitions, 428 flow [2024-11-13 15:38:59,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 158 transitions, 428 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:38:59,751 INFO L231 Difference]: Finished difference. Result has 154 places, 149 transitions, 374 flow [2024-11-13 15:38:59,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=154, PETRI_TRANSITIONS=149} [2024-11-13 15:38:59,752 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 4 predicate places. [2024-11-13 15:38:59,752 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 149 transitions, 374 flow [2024-11-13 15:38:59,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 15:38:59,753 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:38:59,753 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] [2024-11-13 15:38:59,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 15:38:59,753 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:38:59,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:38:59,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1401292971, now seen corresponding path program 1 times [2024-11-13 15:38:59,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:38:59,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577581338] [2024-11-13 15:38:59,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:38:59,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:38:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:00,302 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 15:39:00,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:00,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577581338] [2024-11-13 15:39:00,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577581338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:00,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:00,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:39:00,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014010522] [2024-11-13 15:39:00,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:00,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:39:00,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:00,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:39:00,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:39:00,442 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 148 [2024-11-13 15:39:00,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 149 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 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 15:39:00,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:39:00,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 148 [2024-11-13 15:39:00,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:39:05,909 INFO L124 PetriNetUnfolderBase]: 13638/36403 cut-off events. [2024-11-13 15:39:05,909 INFO L125 PetriNetUnfolderBase]: For 3211/3211 co-relation queries the response was YES. [2024-11-13 15:39:06,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60531 conditions, 36403 events. 13638/36403 cut-off events. For 3211/3211 co-relation queries the response was YES. Maximal size of possible extension queue 1438. Compared 434899 event pairs, 2826 based on Foata normal form. 0/31778 useless extension candidates. Maximal degree in co-relation 35748. Up to 13302 conditions per place. [2024-11-13 15:39:06,373 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 60 selfloop transitions, 5 changer transitions 0/180 dead transitions. [2024-11-13 15:39:06,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 180 transitions, 566 flow [2024-11-13 15:39:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:39:06,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:39:06,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 732 transitions. [2024-11-13 15:39:06,376 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8243243243243243 [2024-11-13 15:39:06,376 INFO L175 Difference]: Start difference. First operand has 154 places, 149 transitions, 374 flow. Second operand 6 states and 732 transitions. [2024-11-13 15:39:06,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 180 transitions, 566 flow [2024-11-13 15:39:06,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 180 transitions, 554 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:39:06,553 INFO L231 Difference]: Finished difference. Result has 155 places, 148 transitions, 370 flow [2024-11-13 15:39:06,553 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=370, PETRI_PLACES=155, PETRI_TRANSITIONS=148} [2024-11-13 15:39:06,554 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 5 predicate places. [2024-11-13 15:39:06,554 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 148 transitions, 370 flow [2024-11-13 15:39:06,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 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 15:39:06,555 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:39:06,555 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] [2024-11-13 15:39:06,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 15:39:06,555 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:39:06,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:06,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1315164252, now seen corresponding path program 1 times [2024-11-13 15:39:06,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:06,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450913999] [2024-11-13 15:39:06,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:06,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:06,623 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 15:39:06,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:06,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450913999] [2024-11-13 15:39:06,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450913999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:06,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:06,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:39:06,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747827836] [2024-11-13 15:39:06,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:06,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:39:06,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:06,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:39:06,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:39:06,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 148 [2024-11-13 15:39:06,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 148 transitions, 370 flow. Second operand has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 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 15:39:06,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:39:06,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 148 [2024-11-13 15:39:06,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:39:11,793 INFO L124 PetriNetUnfolderBase]: 9343/33722 cut-off events. [2024-11-13 15:39:11,793 INFO L125 PetriNetUnfolderBase]: For 1637/1637 co-relation queries the response was YES. [2024-11-13 15:39:11,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49429 conditions, 33722 events. 9343/33722 cut-off events. For 1637/1637 co-relation queries the response was YES. Maximal size of possible extension queue 907. Compared 430415 event pairs, 7523 based on Foata normal form. 1/29648 useless extension candidates. Maximal degree in co-relation 31640. Up to 10778 conditions per place. [2024-11-13 15:39:12,022 INFO L140 encePairwiseOnDemand]: 140/148 looper letters, 28 selfloop transitions, 2 changer transitions 5/156 dead transitions. [2024-11-13 15:39:12,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 156 transitions, 456 flow [2024-11-13 15:39:12,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:39:12,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:39:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 744 transitions. [2024-11-13 15:39:12,024 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8378378378378378 [2024-11-13 15:39:12,024 INFO L175 Difference]: Start difference. First operand has 155 places, 148 transitions, 370 flow. Second operand 6 states and 744 transitions. [2024-11-13 15:39:12,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 156 transitions, 456 flow [2024-11-13 15:39:12,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 156 transitions, 446 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:39:12,028 INFO L231 Difference]: Finished difference. Result has 159 places, 149 transitions, 382 flow [2024-11-13 15:39:12,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=382, PETRI_PLACES=159, PETRI_TRANSITIONS=149} [2024-11-13 15:39:12,029 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 9 predicate places. [2024-11-13 15:39:12,030 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 149 transitions, 382 flow [2024-11-13 15:39:12,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 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 15:39:12,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:39:12,030 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] [2024-11-13 15:39:12,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-13 15:39:12,030 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:39:12,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:12,031 INFO L85 PathProgramCache]: Analyzing trace with hash -363407905, now seen corresponding path program 1 times [2024-11-13 15:39:12,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:12,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970919874] [2024-11-13 15:39:12,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:12,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:12,067 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 15:39:12,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:12,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970919874] [2024-11-13 15:39:12,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970919874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:12,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:12,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:39:12,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364829174] [2024-11-13 15:39:12,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:12,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:39:12,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:12,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:39:12,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:39:12,102 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 148 [2024-11-13 15:39:12,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 149 transitions, 382 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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 15:39:12,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:39:12,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 148 [2024-11-13 15:39:12,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:39:18,477 INFO L124 PetriNetUnfolderBase]: 13656/42614 cut-off events. [2024-11-13 15:39:18,477 INFO L125 PetriNetUnfolderBase]: For 10976/14552 co-relation queries the response was YES. [2024-11-13 15:39:18,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73539 conditions, 42614 events. 13656/42614 cut-off events. For 10976/14552 co-relation queries the response was YES. Maximal size of possible extension queue 1524. Compared 550955 event pairs, 7252 based on Foata normal form. 37/37704 useless extension candidates. Maximal degree in co-relation 73476. Up to 15881 conditions per place. [2024-11-13 15:39:18,800 INFO L140 encePairwiseOnDemand]: 140/148 looper letters, 39 selfloop transitions, 11 changer transitions 0/170 dead transitions. [2024-11-13 15:39:18,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 170 transitions, 568 flow [2024-11-13 15:39:18,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:39:18,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:39:18,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2024-11-13 15:39:18,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9099099099099099 [2024-11-13 15:39:18,806 INFO L175 Difference]: Start difference. First operand has 159 places, 149 transitions, 382 flow. Second operand 3 states and 404 transitions. [2024-11-13 15:39:18,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 170 transitions, 568 flow [2024-11-13 15:39:18,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 170 transitions, 556 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-13 15:39:18,917 INFO L231 Difference]: Finished difference. Result has 156 places, 158 transitions, 466 flow [2024-11-13 15:39:18,917 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=466, PETRI_PLACES=156, PETRI_TRANSITIONS=158} [2024-11-13 15:39:18,917 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 6 predicate places. [2024-11-13 15:39:18,917 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 158 transitions, 466 flow [2024-11-13 15:39:18,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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 15:39:18,918 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:39:18,918 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] [2024-11-13 15:39:18,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 15:39:18,918 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:39:18,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:18,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1605192340, now seen corresponding path program 1 times [2024-11-13 15:39:18,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:18,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585980330] [2024-11-13 15:39:18,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:18,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:19,228 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 15:39:19,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:19,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585980330] [2024-11-13 15:39:19,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585980330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:19,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:19,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:39:19,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216015957] [2024-11-13 15:39:19,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:19,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:39:19,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:19,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:39:19,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:39:19,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 148 [2024-11-13 15:39:19,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 158 transitions, 466 flow. Second operand has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 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 15:39:19,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:39:19,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 148 [2024-11-13 15:39:19,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:39:26,487 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([613] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_4| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_4|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][155], [60#L1023-5true, 145#true, 122#L1038-1true, 134#L1024true, 149#true, Black: 166#(= |ULTIMATE.start_main_~i~0#1| 0), 150#true, Black: 177#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 147#true, 175#true, 180#true, 48#L1022-3true, Black: 155#(= |#race~data~0| 0)]) [2024-11-13 15:39:26,487 INFO L294 olderBase$Statistics]: this new event has 153 ancestors and is cut-off event [2024-11-13 15:39:26,487 INFO L297 olderBase$Statistics]: existing Event has 109 ancestors and is cut-off event [2024-11-13 15:39:26,488 INFO L297 olderBase$Statistics]: existing Event has 153 ancestors and is cut-off event [2024-11-13 15:39:26,488 INFO L297 olderBase$Statistics]: existing Event has 109 ancestors and is cut-off event [2024-11-13 15:39:26,693 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([661] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][187], [60#L1023-5true, 26#L1023-5true, 145#true, 122#L1038-1true, 102#L1023-6true, 151#true, 149#true, Black: 166#(= |ULTIMATE.start_main_~i~0#1| 0), 146#true, Black: 177#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 175#true, 180#true, Black: 155#(= |#race~data~0| 0)]) [2024-11-13 15:39:26,693 INFO L294 olderBase$Statistics]: this new event has 157 ancestors and is cut-off event [2024-11-13 15:39:26,694 INFO L297 olderBase$Statistics]: existing Event has 157 ancestors and is cut-off event [2024-11-13 15:39:26,694 INFO L297 olderBase$Statistics]: existing Event has 157 ancestors and is cut-off event [2024-11-13 15:39:26,694 INFO L297 olderBase$Statistics]: existing Event has 157 ancestors and is cut-off event [2024-11-13 15:39:26,795 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([613] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_4| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_4|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][155], [60#L1023-5true, 145#true, 122#L1038-1true, 149#true, Black: 166#(= |ULTIMATE.start_main_~i~0#1| 0), 150#true, 116#L1023-5true, Black: 177#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 147#true, 175#true, 180#true, Black: 155#(= |#race~data~0| 0), 23#threadErr0ASSERT_VIOLATIONDATA_RACEtrue]) [2024-11-13 15:39:26,796 INFO L294 olderBase$Statistics]: this new event has 157 ancestors and is cut-off event [2024-11-13 15:39:26,796 INFO L297 olderBase$Statistics]: existing Event has 113 ancestors and is cut-off event [2024-11-13 15:39:26,796 INFO L297 olderBase$Statistics]: existing Event has 113 ancestors and is cut-off event [2024-11-13 15:39:26,796 INFO L297 olderBase$Statistics]: existing Event has 157 ancestors and is cut-off event [2024-11-13 15:39:27,607 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([661] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][182], [60#L1023-5true, 26#L1023-5true, 145#true, 122#L1038-1true, 134#L1024true, 151#true, 149#true, Black: 166#(= |ULTIMATE.start_main_~i~0#1| 0), 146#true, Black: 177#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 175#true, 180#true, Black: 155#(= |#race~data~0| 0)]) [2024-11-13 15:39:27,607 INFO L294 olderBase$Statistics]: this new event has 159 ancestors and is not cut-off event [2024-11-13 15:39:27,607 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is not cut-off event [2024-11-13 15:39:27,607 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is not cut-off event [2024-11-13 15:39:27,607 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is not cut-off event [2024-11-13 15:39:28,582 INFO L124 PetriNetUnfolderBase]: 19999/58034 cut-off events. [2024-11-13 15:39:28,583 INFO L125 PetriNetUnfolderBase]: For 9570/13615 co-relation queries the response was YES. [2024-11-13 15:39:28,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100960 conditions, 58034 events. 19999/58034 cut-off events. For 9570/13615 co-relation queries the response was YES. Maximal size of possible extension queue 1955. Compared 761663 event pairs, 9698 based on Foata normal form. 198/50939 useless extension candidates. Maximal degree in co-relation 79535. Up to 12713 conditions per place. [2024-11-13 15:39:29,042 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 58 selfloop transitions, 5 changer transitions 0/189 dead transitions. [2024-11-13 15:39:29,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 189 transitions, 654 flow [2024-11-13 15:39:29,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:39:29,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:39:29,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 742 transitions. [2024-11-13 15:39:29,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8355855855855856 [2024-11-13 15:39:29,044 INFO L175 Difference]: Start difference. First operand has 156 places, 158 transitions, 466 flow. Second operand 6 states and 742 transitions. [2024-11-13 15:39:29,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 189 transitions, 654 flow [2024-11-13 15:39:29,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 189 transitions, 632 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:39:29,138 INFO L231 Difference]: Finished difference. Result has 158 places, 157 transitions, 452 flow [2024-11-13 15:39:29,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=452, PETRI_PLACES=158, PETRI_TRANSITIONS=157} [2024-11-13 15:39:29,139 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 8 predicate places. [2024-11-13 15:39:29,139 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 157 transitions, 452 flow [2024-11-13 15:39:29,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 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 15:39:29,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:39:29,139 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] [2024-11-13 15:39:29,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-13 15:39:29,140 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:39:29,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:29,140 INFO L85 PathProgramCache]: Analyzing trace with hash -313535916, now seen corresponding path program 1 times [2024-11-13 15:39:29,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:29,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087674820] [2024-11-13 15:39:29,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:29,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:29,239 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 15:39:29,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:29,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087674820] [2024-11-13 15:39:29,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087674820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:39:29,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740931370] [2024-11-13 15:39:29,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:29,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:39:29,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:39:29,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:39:29,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:39:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:29,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:39:29,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:39:29,478 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 15:39:29,478 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:39:29,555 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 15:39:29,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740931370] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:39:29,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:39:29,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-13 15:39:29,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102517066] [2024-11-13 15:39:29,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:39:29,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:39:29,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:29,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:39:29,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:39:29,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 148 [2024-11-13 15:39:29,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 157 transitions, 452 flow. Second operand has 9 states, 9 states have (on average 118.22222222222223) internal successors, (1064), 9 states have internal predecessors, (1064), 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 15:39:29,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:39:29,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 148 [2024-11-13 15:39:29,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:39:33,293 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([661] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][195], [60#L1023-5true, 26#L1023-5true, 122#L1038-1true, 145#true, 190#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 102#L1023-6true, 151#true, 149#true, Black: 166#(= |ULTIMATE.start_main_~i~0#1| 0), 146#true, Black: 177#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 180#true, Black: 155#(= |#race~data~0| 0)]) [2024-11-13 15:39:33,294 INFO L294 olderBase$Statistics]: this new event has 157 ancestors and is cut-off event [2024-11-13 15:39:33,294 INFO L297 olderBase$Statistics]: existing Event has 157 ancestors and is cut-off event [2024-11-13 15:39:33,294 INFO L297 olderBase$Statistics]: existing Event has 157 ancestors and is cut-off event [2024-11-13 15:39:33,294 INFO L297 olderBase$Statistics]: existing Event has 157 ancestors and is cut-off event [2024-11-13 15:39:33,986 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([661] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][193], [60#L1023-5true, 26#L1023-5true, 145#true, 122#L1038-1true, 190#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 134#L1024true, 151#true, 149#true, Black: 166#(= |ULTIMATE.start_main_~i~0#1| 0), 146#true, Black: 177#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 180#true, Black: 155#(= |#race~data~0| 0)]) [2024-11-13 15:39:33,986 INFO L294 olderBase$Statistics]: this new event has 159 ancestors and is not cut-off event [2024-11-13 15:39:33,986 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is not cut-off event [2024-11-13 15:39:33,986 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is not cut-off event [2024-11-13 15:39:33,986 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is not cut-off event [2024-11-13 15:39:34,591 INFO L124 PetriNetUnfolderBase]: 11192/37627 cut-off events. [2024-11-13 15:39:34,591 INFO L125 PetriNetUnfolderBase]: For 6000/7803 co-relation queries the response was YES. [2024-11-13 15:39:34,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64701 conditions, 37627 events. 11192/37627 cut-off events. For 6000/7803 co-relation queries the response was YES. Maximal size of possible extension queue 1092. Compared 482802 event pairs, 3970 based on Foata normal form. 15/33087 useless extension candidates. Maximal degree in co-relation 32683. Up to 6542 conditions per place. [2024-11-13 15:39:35,172 INFO L140 encePairwiseOnDemand]: 138/148 looper letters, 61 selfloop transitions, 10 changer transitions 0/198 dead transitions. [2024-11-13 15:39:35,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 198 transitions, 690 flow [2024-11-13 15:39:35,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:39:35,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 15:39:35,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1000 transitions. [2024-11-13 15:39:35,174 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8445945945945946 [2024-11-13 15:39:35,174 INFO L175 Difference]: Start difference. First operand has 158 places, 157 transitions, 452 flow. Second operand 8 states and 1000 transitions. [2024-11-13 15:39:35,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 198 transitions, 690 flow [2024-11-13 15:39:35,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 198 transitions, 678 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:39:35,202 INFO L231 Difference]: Finished difference. Result has 163 places, 160 transitions, 486 flow [2024-11-13 15:39:35,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=486, PETRI_PLACES=163, PETRI_TRANSITIONS=160} [2024-11-13 15:39:35,203 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 13 predicate places. [2024-11-13 15:39:35,203 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 160 transitions, 486 flow [2024-11-13 15:39:35,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.22222222222223) internal successors, (1064), 9 states have internal predecessors, (1064), 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 15:39:35,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:39:35,204 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] [2024-11-13 15:39:35,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 15:39:35,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:39:35,404 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:39:35,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:35,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1303106858, now seen corresponding path program 1 times [2024-11-13 15:39:35,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:35,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934045353] [2024-11-13 15:39:35,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:35,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:35,446 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 15:39:35,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:35,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934045353] [2024-11-13 15:39:35,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934045353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:35,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:35,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:39:35,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558676294] [2024-11-13 15:39:35,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:35,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:39:35,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:35,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:39:35,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:39:35,476 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 148 [2024-11-13 15:39:35,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 160 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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 15:39:35,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:39:35,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 148 [2024-11-13 15:39:35,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:39:41,033 INFO L124 PetriNetUnfolderBase]: 11741/40883 cut-off events. [2024-11-13 15:39:41,033 INFO L125 PetriNetUnfolderBase]: For 23172/26281 co-relation queries the response was YES. [2024-11-13 15:39:41,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78691 conditions, 40883 events. 11741/40883 cut-off events. For 23172/26281 co-relation queries the response was YES. Maximal size of possible extension queue 1526. Compared 558065 event pairs, 6051 based on Foata normal form. 47/36751 useless extension candidates. Maximal degree in co-relation 30076. Up to 13416 conditions per place. [2024-11-13 15:39:41,341 INFO L140 encePairwiseOnDemand]: 140/148 looper letters, 43 selfloop transitions, 18 changer transitions 0/185 dead transitions. [2024-11-13 15:39:41,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 185 transitions, 731 flow [2024-11-13 15:39:41,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:39:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:39:41,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2024-11-13 15:39:41,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9076576576576577 [2024-11-13 15:39:41,343 INFO L175 Difference]: Start difference. First operand has 163 places, 160 transitions, 486 flow. Second operand 3 states and 403 transitions. [2024-11-13 15:39:41,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 185 transitions, 731 flow [2024-11-13 15:39:41,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 185 transitions, 725 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 15:39:41,357 INFO L231 Difference]: Finished difference. Result has 164 places, 174 transitions, 658 flow [2024-11-13 15:39:41,357 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=164, PETRI_TRANSITIONS=174} [2024-11-13 15:39:41,357 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 14 predicate places. [2024-11-13 15:39:41,357 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 174 transitions, 658 flow [2024-11-13 15:39:41,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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 15:39:41,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:39:41,358 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] [2024-11-13 15:39:41,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-13 15:39:41,358 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:39:41,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:41,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1344789558, now seen corresponding path program 1 times [2024-11-13 15:39:41,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:41,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789066799] [2024-11-13 15:39:41,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:41,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:41,459 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 15:39:41,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:41,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789066799] [2024-11-13 15:39:41,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789066799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:41,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:41,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:39:41,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117403177] [2024-11-13 15:39:41,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:41,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:39:41,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:41,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:39:41,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:39:41,479 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 148 [2024-11-13 15:39:41,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 174 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 15:39:41,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:39:41,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 148 [2024-11-13 15:39:41,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:39:42,662 INFO L124 PetriNetUnfolderBase]: 688/6748 cut-off events. [2024-11-13 15:39:42,662 INFO L125 PetriNetUnfolderBase]: For 3290/3742 co-relation queries the response was YES. [2024-11-13 15:39:42,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11677 conditions, 6748 events. 688/6748 cut-off events. For 3290/3742 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 77531 event pairs, 149 based on Foata normal form. 177/6540 useless extension candidates. Maximal degree in co-relation 4676. Up to 662 conditions per place. [2024-11-13 15:39:42,690 INFO L140 encePairwiseOnDemand]: 140/148 looper letters, 16 selfloop transitions, 8 changer transitions 0/164 dead transitions. [2024-11-13 15:39:42,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 164 transitions, 591 flow [2024-11-13 15:39:42,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:39:42,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:39:42,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 412 transitions. [2024-11-13 15:39:42,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9279279279279279 [2024-11-13 15:39:42,691 INFO L175 Difference]: Start difference. First operand has 164 places, 174 transitions, 658 flow. Second operand 3 states and 412 transitions. [2024-11-13 15:39:42,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 164 transitions, 591 flow [2024-11-13 15:39:42,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 164 transitions, 577 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-13 15:39:42,699 INFO L231 Difference]: Finished difference. Result has 164 places, 157 transitions, 498 flow [2024-11-13 15:39:42,699 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=164, PETRI_TRANSITIONS=157} [2024-11-13 15:39:42,700 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 14 predicate places. [2024-11-13 15:39:42,700 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 157 transitions, 498 flow [2024-11-13 15:39:42,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 15:39:42,700 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:39:42,701 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 15:39:42,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-13 15:39:42,701 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:39:42,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:42,701 INFO L85 PathProgramCache]: Analyzing trace with hash -776807986, now seen corresponding path program 1 times [2024-11-13 15:39:42,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:42,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812705702] [2024-11-13 15:39:42,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:42,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 15:39:42,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:42,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812705702] [2024-11-13 15:39:42,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812705702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:42,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:42,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:39:42,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558657959] [2024-11-13 15:39:42,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:42,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:39:42,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:42,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:39:42,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:39:42,775 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 148 [2024-11-13 15:39:42,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 157 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 15:39:42,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:39:42,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 148 [2024-11-13 15:39:42,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:39:43,930 INFO L124 PetriNetUnfolderBase]: 1114/7740 cut-off events. [2024-11-13 15:39:43,930 INFO L125 PetriNetUnfolderBase]: For 6577/6738 co-relation queries the response was YES. [2024-11-13 15:39:43,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15373 conditions, 7740 events. 1114/7740 cut-off events. For 6577/6738 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 92272 event pairs, 714 based on Foata normal form. 7/7223 useless extension candidates. Maximal degree in co-relation 12078. Up to 2065 conditions per place. [2024-11-13 15:39:44,199 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 33 selfloop transitions, 5 changer transitions 0/164 dead transitions. [2024-11-13 15:39:44,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 164 transitions, 612 flow [2024-11-13 15:39:44,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:39:44,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:39:44,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2024-11-13 15:39:44,200 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8851351351351351 [2024-11-13 15:39:44,201 INFO L175 Difference]: Start difference. First operand has 164 places, 157 transitions, 498 flow. Second operand 3 states and 393 transitions. [2024-11-13 15:39:44,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 164 transitions, 612 flow [2024-11-13 15:39:44,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 164 transitions, 604 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:39:44,207 INFO L231 Difference]: Finished difference. Result has 167 places, 160 transitions, 530 flow [2024-11-13 15:39:44,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=167, PETRI_TRANSITIONS=160} [2024-11-13 15:39:44,207 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 17 predicate places. [2024-11-13 15:39:44,207 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 160 transitions, 530 flow [2024-11-13 15:39:44,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 15:39:44,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:39:44,208 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:39:44,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-13 15:39:44,208 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:39:44,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:44,208 INFO L85 PathProgramCache]: Analyzing trace with hash -781146363, now seen corresponding path program 1 times [2024-11-13 15:39:44,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:44,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748349084] [2024-11-13 15:39:44,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:44,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:44,266 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-13 15:39:44,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:44,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748349084] [2024-11-13 15:39:44,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748349084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:44,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:44,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:39:44,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879007865] [2024-11-13 15:39:44,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:44,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:39:44,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:44,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:39:44,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:39:44,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 148 [2024-11-13 15:39:44,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 160 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 15:39:44,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:39:44,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 148 [2024-11-13 15:39:44,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:39:45,582 INFO L124 PetriNetUnfolderBase]: 1121/8026 cut-off events. [2024-11-13 15:39:45,583 INFO L125 PetriNetUnfolderBase]: For 8772/8924 co-relation queries the response was YES. [2024-11-13 15:39:45,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16446 conditions, 8026 events. 1121/8026 cut-off events. For 8772/8924 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 96372 event pairs, 707 based on Foata normal form. 4/7573 useless extension candidates. Maximal degree in co-relation 13158. Up to 2095 conditions per place. [2024-11-13 15:39:45,630 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 33 selfloop transitions, 5 changer transitions 0/166 dead transitions. [2024-11-13 15:39:45,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 166 transitions, 635 flow [2024-11-13 15:39:45,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:39:45,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:39:45,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2024-11-13 15:39:45,632 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8828828828828829 [2024-11-13 15:39:45,632 INFO L175 Difference]: Start difference. First operand has 167 places, 160 transitions, 530 flow. Second operand 3 states and 392 transitions. [2024-11-13 15:39:45,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 166 transitions, 635 flow [2024-11-13 15:39:45,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 166 transitions, 621 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-13 15:39:45,646 INFO L231 Difference]: Finished difference. Result has 169 places, 163 transitions, 558 flow [2024-11-13 15:39:45,647 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=169, PETRI_TRANSITIONS=163} [2024-11-13 15:39:45,647 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 19 predicate places. [2024-11-13 15:39:45,648 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 163 transitions, 558 flow [2024-11-13 15:39:45,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 15:39:45,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:39:45,648 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-13 15:39:45,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-13 15:39:45,649 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:39:45,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:45,649 INFO L85 PathProgramCache]: Analyzing trace with hash -854431738, now seen corresponding path program 1 times [2024-11-13 15:39:45,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:45,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791234078] [2024-11-13 15:39:45,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:45,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:45,891 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:39:45,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:45,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791234078] [2024-11-13 15:39:45,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791234078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:39:45,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174878861] [2024-11-13 15:39:45,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:45,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:39:45,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:39:45,896 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:39:45,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:39:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:46,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:39:46,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:39:46,471 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:39:46,472 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:39:46,723 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:39:46,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174878861] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:39:46,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:39:46,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-13 15:39:46,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681392348] [2024-11-13 15:39:46,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:39:46,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 15:39:46,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:46,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 15:39:46,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:39:47,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 148 [2024-11-13 15:39:47,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 163 transitions, 558 flow. Second operand has 16 states, 16 states have (on average 114.8125) internal successors, (1837), 16 states have internal predecessors, (1837), 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 15:39:47,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:39:47,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 148 [2024-11-13 15:39:47,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:39:49,044 INFO L124 PetriNetUnfolderBase]: 2232/9384 cut-off events. [2024-11-13 15:39:49,044 INFO L125 PetriNetUnfolderBase]: For 5238/5462 co-relation queries the response was YES. [2024-11-13 15:39:49,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18833 conditions, 9384 events. 2232/9384 cut-off events. For 5238/5462 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 97113 event pairs, 170 based on Foata normal form. 110/9234 useless extension candidates. Maximal degree in co-relation 9495. Up to 1097 conditions per place. [2024-11-13 15:39:49,102 INFO L140 encePairwiseOnDemand]: 135/148 looper letters, 101 selfloop transitions, 16 changer transitions 22/265 dead transitions. [2024-11-13 15:39:49,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 265 transitions, 1172 flow [2024-11-13 15:39:49,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:39:49,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-13 15:39:49,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1819 transitions. [2024-11-13 15:39:49,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8193693693693693 [2024-11-13 15:39:49,105 INFO L175 Difference]: Start difference. First operand has 169 places, 163 transitions, 558 flow. Second operand 15 states and 1819 transitions. [2024-11-13 15:39:49,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 265 transitions, 1172 flow [2024-11-13 15:39:49,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 265 transitions, 1156 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-13 15:39:49,118 INFO L231 Difference]: Finished difference. Result has 187 places, 170 transitions, 626 flow [2024-11-13 15:39:49,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=626, PETRI_PLACES=187, PETRI_TRANSITIONS=170} [2024-11-13 15:39:49,119 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 37 predicate places. [2024-11-13 15:39:49,119 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 170 transitions, 626 flow [2024-11-13 15:39:49,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 114.8125) internal successors, (1837), 16 states have internal predecessors, (1837), 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 15:39:49,120 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:39:49,120 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:39:49,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 15:39:49,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4013e766-f5be-4914-a0af-0a7fb400c4d0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-13 15:39:49,321 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 15:39:49,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:49,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1890631088, now seen corresponding path program 1 times [2024-11-13 15:39:49,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:49,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057189679] [2024-11-13 15:39:49,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:49,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:39:49,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:39:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:39:49,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:39:49,401 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:39:49,401 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-13 15:39:49,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-13 15:39:49,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-13 15:39:49,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-13 15:39:49,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-13 15:39:49,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-13 15:39:49,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-13 15:39:49,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-13 15:39:49,403 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-13 15:39:49,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-13 15:39:49,403 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:39:49,403 WARN L247 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:39:49,404 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-13 15:39:49,431 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-13 15:39:49,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 166 transitions, 387 flow [2024-11-13 15:39:49,571 INFO L124 PetriNetUnfolderBase]: 93/1049 cut-off events. [2024-11-13 15:39:49,572 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-13 15:39:49,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1155 conditions, 1049 events. 93/1049 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4919 event pairs, 23 based on Foata normal form. 0/897 useless extension candidates. Maximal degree in co-relation 640. Up to 80 conditions per place. [2024-11-13 15:39:49,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 169 places, 166 transitions, 387 flow [2024-11-13 15:39:49,578 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 166 transitions, 387 flow [2024-11-13 15:39:49,578 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:39:49,579 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;@549cfa88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:39:49,579 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-13 15:39:49,583 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:39:49,583 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-13 15:39:49,583 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:39:49,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:39:49,583 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] [2024-11-13 15:39:49,583 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-13 15:39:49,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:49,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1141240723, now seen corresponding path program 1 times [2024-11-13 15:39:49,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:49,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956252178] [2024-11-13 15:39:49,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:49,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:49,603 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 15:39:49,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:49,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956252178] [2024-11-13 15:39:49,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956252178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:49,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:49,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:39:49,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968805932] [2024-11-13 15:39:49,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:49,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:39:49,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:49,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:39:49,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:39:49,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 166 [2024-11-13 15:39:49,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 166 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 15:39:49,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:39:49,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 166 [2024-11-13 15:39:49,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand