./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.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_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/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_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/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_5ed8edde-9390-490b-a238-71002d9d546e/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 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:39:39,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:39:40,112 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:39:40,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:39:40,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:39:40,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:39:40,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:39:40,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:39:40,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:39:40,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:39:40,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:39:40,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:39:40,163 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:39:40,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:39:40,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:39:40,164 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:39:40,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:39:40,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:39:40,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:39:40,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:39:40,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:39:40,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:39:40,165 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:39:40,166 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:39:40,166 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:39:40,166 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:39:40,166 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:39:40,166 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:39:40,167 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:39:40,167 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:39:40,167 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:39:40,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:39:40,167 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:39:40,168 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:39:40,168 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:39:40,168 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:39:40,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:39:40,168 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:39:40,168 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:39:40,169 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:39:40,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:39:40,169 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_5ed8edde-9390-490b-a238-71002d9d546e/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 -> 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d [2024-11-13 15:39:40,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:39:40,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:39:40,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:39:40,578 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:39:40,579 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:39:40,580 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i Unable to find full path for "g++" [2024-11-13 15:39:42,892 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:39:43,296 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:39:43,300 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2024-11-13 15:39:43,326 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/data/4b8f9fb9b/5be3998b7fcd4d99aefdb02c543e479d/FLAG965fccc3c [2024-11-13 15:39:43,344 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/data/4b8f9fb9b/5be3998b7fcd4d99aefdb02c543e479d [2024-11-13 15:39:43,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:39:43,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:39:43,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:39:43,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:39:43,358 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:39:43,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:39:43" (1/1) ... [2024-11-13 15:39:43,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255cddf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:43, skipping insertion in model container [2024-11-13 15:39:43,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:39:43" (1/1) ... [2024-11-13 15:39:43,417 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:39:44,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:39:44,045 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:39:44,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:39:44,244 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:39:44,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:44 WrapperNode [2024-11-13 15:39:44,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:39:44,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:39:44,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:39:44,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:39:44,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:44" (1/1) ... [2024-11-13 15:39:44,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:44" (1/1) ... [2024-11-13 15:39:44,356 INFO L138 Inliner]: procedures = 174, calls = 86, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 865 [2024-11-13 15:39:44,357 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:39:44,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:39:44,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:39:44,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:39:44,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:44" (1/1) ... [2024-11-13 15:39:44,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:44" (1/1) ... [2024-11-13 15:39:44,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:44" (1/1) ... [2024-11-13 15:39:44,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:44" (1/1) ... [2024-11-13 15:39:44,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:44" (1/1) ... [2024-11-13 15:39:44,492 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:44" (1/1) ... [2024-11-13 15:39:44,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:44" (1/1) ... [2024-11-13 15:39:44,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:44" (1/1) ... [2024-11-13 15:39:44,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:39:44,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:39:44,522 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:39:44,522 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:39:44,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:44" (1/1) ... [2024-11-13 15:39:44,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:39:44,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:39:44,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:39:44,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:39:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 15:39:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 15:39:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:39:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-13 15:39:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-13 15:39:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:39:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 15:39:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:39:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 15:39:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:39:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 15:39:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:39:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:39:44,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:39:44,611 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 15:39:44,913 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:39:44,918 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:39:47,151 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:39:47,151 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:39:47,284 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:39:47,288 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-13 15:39:47,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:39:47 BoogieIcfgContainer [2024-11-13 15:39:47,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:39:47,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:39:47,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:39:47,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:39:47,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:39:43" (1/3) ... [2024-11-13 15:39:47,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2466a7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:39:47, skipping insertion in model container [2024-11-13 15:39:47,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:44" (2/3) ... [2024-11-13 15:39:47,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2466a7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:39:47, skipping insertion in model container [2024-11-13 15:39:47,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:39:47" (3/3) ... [2024-11-13 15:39:47,310 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_2t.i [2024-11-13 15:39:47,333 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:39:47,336 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_2t.i that has 2 procedures, 941 locations, 1 initial locations, 16 loop locations, and 77 error locations. [2024-11-13 15:39:47,337 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:39:47,791 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 15:39:47,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 944 places, 1030 transitions, 2067 flow [2024-11-13 15:39:49,283 INFO L124 PetriNetUnfolderBase]: 135/1528 cut-off events. [2024-11-13 15:39:49,289 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:39:49,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 1528 events. 135/1528 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5612 event pairs, 0 based on Foata normal form. 0/1275 useless extension candidates. Maximal degree in co-relation 924. Up to 4 conditions per place. [2024-11-13 15:39:49,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 944 places, 1030 transitions, 2067 flow [2024-11-13 15:39:49,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 944 places, 1030 transitions, 2067 flow [2024-11-13 15:39:49,462 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:39:49,485 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;@647dc1cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:39:49,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2024-11-13 15:39:49,507 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:39:49,507 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-11-13 15:39:49,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:39:49,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:39:49,510 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] [2024-11-13 15:39:49,511 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-13 15:39:49,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:49,518 INFO L85 PathProgramCache]: Analyzing trace with hash -944008861, now seen corresponding path program 1 times [2024-11-13 15:39:49,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:49,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629984953] [2024-11-13 15:39:49,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:49,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:50,973 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 15:39:50,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:50,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629984953] [2024-11-13 15:39:50,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629984953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:50,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:50,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:39:50,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472280574] [2024-11-13 15:39:50,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:50,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:39:50,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:51,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:39:51,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:39:53,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1030 [2024-11-13 15:39:53,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 944 places, 1030 transitions, 2067 flow. Second operand has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 15:39:53,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:39:53,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1030 [2024-11-13 15:39:53,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:40:10,364 INFO L124 PetriNetUnfolderBase]: 12711/59452 cut-off events. [2024-11-13 15:40:10,364 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-13 15:40:10,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82853 conditions, 59452 events. 12711/59452 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692004 event pairs, 11413 based on Foata normal form. 7001/59285 useless extension candidates. Maximal degree in co-relation 82164. Up to 23391 conditions per place. [2024-11-13 15:40:10,629 INFO L140 encePairwiseOnDemand]: 954/1030 looper letters, 231 selfloop transitions, 5 changer transitions 3/932 dead transitions. [2024-11-13 15:40:10,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 932 transitions, 2343 flow [2024-11-13 15:40:10,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:40:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:40:10,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4645 transitions. [2024-11-13 15:40:10,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7516181229773463 [2024-11-13 15:40:10,692 INFO L175 Difference]: Start difference. First operand has 944 places, 1030 transitions, 2067 flow. Second operand 6 states and 4645 transitions. [2024-11-13 15:40:10,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 921 places, 932 transitions, 2343 flow [2024-11-13 15:40:10,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 921 places, 932 transitions, 2343 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:40:10,743 INFO L231 Difference]: Finished difference. Result has 921 places, 929 transitions, 1875 flow [2024-11-13 15:40:10,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=916, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=932, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1875, PETRI_PLACES=921, PETRI_TRANSITIONS=929} [2024-11-13 15:40:10,755 INFO L277 CegarLoopForPetriNet]: 944 programPoint places, -23 predicate places. [2024-11-13 15:40:10,756 INFO L471 AbstractCegarLoop]: Abstraction has has 921 places, 929 transitions, 1875 flow [2024-11-13 15:40:10,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 15:40:10,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:40:10,761 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] [2024-11-13 15:40:10,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:40:10,763 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-13 15:40:10,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:10,766 INFO L85 PathProgramCache]: Analyzing trace with hash -133257823, now seen corresponding path program 1 times [2024-11-13 15:40:10,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:10,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101611424] [2024-11-13 15:40:10,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:10,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:10,911 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 15:40:10,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:10,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101611424] [2024-11-13 15:40:10,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101611424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:40:10,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:40:10,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:40:10,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978235058] [2024-11-13 15:40:10,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:40:10,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:40:10,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:10,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:40:10,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:40:10,999 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 932 out of 1030 [2024-11-13 15:40:11,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 929 transitions, 1875 flow. Second operand has 3 states, 3 states have (on average 933.3333333333334) internal successors, (2800), 3 states have internal predecessors, (2800), 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 15:40:11,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:40:11,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 932 of 1030 [2024-11-13 15:40:11,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:40:13,274 INFO L124 PetriNetUnfolderBase]: 247/4793 cut-off events. [2024-11-13 15:40:13,274 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 15:40:13,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5116 conditions, 4793 events. 247/4793 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36256 event pairs, 110 based on Foata normal form. 1/4134 useless extension candidates. Maximal degree in co-relation 5032. Up to 306 conditions per place. [2024-11-13 15:40:13,312 INFO L140 encePairwiseOnDemand]: 1027/1030 looper letters, 27 selfloop transitions, 2 changer transitions 0/930 dead transitions. [2024-11-13 15:40:13,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 920 places, 930 transitions, 1935 flow [2024-11-13 15:40:13,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:40:13,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:40:13,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2826 transitions. [2024-11-13 15:40:13,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9145631067961165 [2024-11-13 15:40:13,321 INFO L175 Difference]: Start difference. First operand has 921 places, 929 transitions, 1875 flow. Second operand 3 states and 2826 transitions. [2024-11-13 15:40:13,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 920 places, 930 transitions, 1935 flow [2024-11-13 15:40:13,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 915 places, 930 transitions, 1925 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:40:13,343 INFO L231 Difference]: Finished difference. Result has 916 places, 930 transitions, 1877 flow [2024-11-13 15:40:13,345 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1865, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=929, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1877, PETRI_PLACES=916, PETRI_TRANSITIONS=930} [2024-11-13 15:40:13,346 INFO L277 CegarLoopForPetriNet]: 944 programPoint places, -28 predicate places. [2024-11-13 15:40:13,347 INFO L471 AbstractCegarLoop]: Abstraction has has 916 places, 930 transitions, 1877 flow [2024-11-13 15:40:13,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 933.3333333333334) internal successors, (2800), 3 states have internal predecessors, (2800), 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 15:40:13,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:40:13,349 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] [2024-11-13 15:40:13,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:40:13,350 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-13 15:40:13,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:13,351 INFO L85 PathProgramCache]: Analyzing trace with hash 680846718, now seen corresponding path program 1 times [2024-11-13 15:40:13,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:13,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197205541] [2024-11-13 15:40:13,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:13,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:14,083 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 15:40:14,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:14,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197205541] [2024-11-13 15:40:14,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197205541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:40:14,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:40:14,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:40:14,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220409817] [2024-11-13 15:40:14,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:40:14,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:40:14,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:14,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:40:14,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:40:17,315 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1030 [2024-11-13 15:40:17,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 916 places, 930 transitions, 1877 flow. Second operand has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 15:40:17,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:40:17,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1030 [2024-11-13 15:40:17,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:40:31,963 INFO L124 PetriNetUnfolderBase]: 12711/59476 cut-off events. [2024-11-13 15:40:31,963 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-13 15:40:32,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82892 conditions, 59476 events. 12711/59476 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692571 event pairs, 11413 based on Foata normal form. 0/52310 useless extension candidates. Maximal degree in co-relation 82813. Up to 23394 conditions per place. [2024-11-13 15:40:32,184 INFO L140 encePairwiseOnDemand]: 1024/1030 looper letters, 232 selfloop transitions, 5 changer transitions 0/929 dead transitions. [2024-11-13 15:40:32,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 920 places, 929 transitions, 2349 flow [2024-11-13 15:40:32,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:40:32,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:40:32,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4575 transitions. [2024-11-13 15:40:32,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7402912621359223 [2024-11-13 15:40:32,196 INFO L175 Difference]: Start difference. First operand has 916 places, 930 transitions, 1877 flow. Second operand 6 states and 4575 transitions. [2024-11-13 15:40:32,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 920 places, 929 transitions, 2349 flow [2024-11-13 15:40:32,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 919 places, 929 transitions, 2347 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:40:32,223 INFO L231 Difference]: Finished difference. Result has 919 places, 929 transitions, 1883 flow [2024-11-13 15:40:32,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1873, PETRI_DIFFERENCE_MINUEND_PLACES=914, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=929, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1883, PETRI_PLACES=919, PETRI_TRANSITIONS=929} [2024-11-13 15:40:32,226 INFO L277 CegarLoopForPetriNet]: 944 programPoint places, -25 predicate places. [2024-11-13 15:40:32,227 INFO L471 AbstractCegarLoop]: Abstraction has has 919 places, 929 transitions, 1883 flow [2024-11-13 15:40:32,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 15:40:32,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:40:32,230 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 15:40:32,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:40:32,230 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-13 15:40:32,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:32,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1025946223, now seen corresponding path program 1 times [2024-11-13 15:40:32,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:32,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813577260] [2024-11-13 15:40:32,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:32,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:33,085 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 15:40:33,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:33,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813577260] [2024-11-13 15:40:33,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813577260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:40:33,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:40:33,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:40:33,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805767793] [2024-11-13 15:40:33,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:40:33,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:40:33,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:33,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:40:33,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:40:35,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1030 [2024-11-13 15:40:35,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 919 places, 929 transitions, 1883 flow. Second operand has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 15:40:35,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:40:35,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1030 [2024-11-13 15:40:35,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:40:50,633 INFO L124 PetriNetUnfolderBase]: 12711/59474 cut-off events. [2024-11-13 15:40:50,634 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2024-11-13 15:40:50,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82899 conditions, 59474 events. 12711/59474 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692295 event pairs, 11413 based on Foata normal form. 0/52310 useless extension candidates. Maximal degree in co-relation 82806. Up to 23394 conditions per place. [2024-11-13 15:40:50,873 INFO L140 encePairwiseOnDemand]: 1024/1030 looper letters, 232 selfloop transitions, 5 changer transitions 0/928 dead transitions. [2024-11-13 15:40:50,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 923 places, 928 transitions, 2355 flow [2024-11-13 15:40:50,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:40:50,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:40:50,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4575 transitions. [2024-11-13 15:40:50,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7402912621359223 [2024-11-13 15:40:50,887 INFO L175 Difference]: Start difference. First operand has 919 places, 929 transitions, 1883 flow. Second operand 6 states and 4575 transitions. [2024-11-13 15:40:50,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 923 places, 928 transitions, 2355 flow [2024-11-13 15:40:50,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 918 places, 928 transitions, 2345 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:40:50,907 INFO L231 Difference]: Finished difference. Result has 918 places, 928 transitions, 1881 flow [2024-11-13 15:40:50,909 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=923, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1881, PETRI_PLACES=918, PETRI_TRANSITIONS=928} [2024-11-13 15:40:50,910 INFO L277 CegarLoopForPetriNet]: 944 programPoint places, -26 predicate places. [2024-11-13 15:40:50,910 INFO L471 AbstractCegarLoop]: Abstraction has has 918 places, 928 transitions, 1881 flow [2024-11-13 15:40:50,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 15:40:50,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:40:50,914 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:40:50,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:40:50,915 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-13 15:40:50,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:50,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1086197344, now seen corresponding path program 1 times [2024-11-13 15:40:50,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:50,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383281772] [2024-11-13 15:40:50,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:50,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:51,069 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 15:40:51,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:51,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383281772] [2024-11-13 15:40:51,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383281772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:40:51,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582460469] [2024-11-13 15:40:51,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:51,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:40:51,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:40:51,074 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:40:51,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:40:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:51,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:40:51,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:40:51,445 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 15:40:51,445 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:40:51,558 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 15:40:51,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582460469] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:40:51,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:40:51,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-11-13 15:40:51,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976501110] [2024-11-13 15:40:51,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:40:51,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:40:51,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:51,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:40:51,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:40:51,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 931 out of 1030 [2024-11-13 15:40:51,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 918 places, 928 transitions, 1881 flow. Second operand has 5 states, 5 states have (on average 932.8) internal successors, (4664), 5 states have internal predecessors, (4664), 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 15:40:51,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:40:51,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 931 of 1030 [2024-11-13 15:40:51,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:40:53,545 INFO L124 PetriNetUnfolderBase]: 247/4791 cut-off events. [2024-11-13 15:40:53,545 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-13 15:40:53,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5122 conditions, 4791 events. 247/4791 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36313 event pairs, 110 based on Foata normal form. 1/4136 useless extension candidates. Maximal degree in co-relation 5015. Up to 305 conditions per place. [2024-11-13 15:40:53,614 INFO L140 encePairwiseOnDemand]: 1026/1030 looper letters, 28 selfloop transitions, 4 changer transitions 0/930 dead transitions. [2024-11-13 15:40:53,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 930 transitions, 1949 flow [2024-11-13 15:40:53,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:40:53,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:40:53,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3757 transitions. [2024-11-13 15:40:53,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9118932038834952 [2024-11-13 15:40:53,627 INFO L175 Difference]: Start difference. First operand has 918 places, 928 transitions, 1881 flow. Second operand 4 states and 3757 transitions. [2024-11-13 15:40:53,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 921 places, 930 transitions, 1949 flow [2024-11-13 15:40:53,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 916 places, 930 transitions, 1939 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:40:53,653 INFO L231 Difference]: Finished difference. Result has 918 places, 929 transitions, 1891 flow [2024-11-13 15:40:53,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1891, PETRI_PLACES=918, PETRI_TRANSITIONS=929} [2024-11-13 15:40:53,659 INFO L277 CegarLoopForPetriNet]: 944 programPoint places, -26 predicate places. [2024-11-13 15:40:53,659 INFO L471 AbstractCegarLoop]: Abstraction has has 918 places, 929 transitions, 1891 flow [2024-11-13 15:40:53,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 932.8) internal successors, (4664), 5 states have internal predecessors, (4664), 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 15:40:53,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:40:53,663 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 15:40:53,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 15:40:53,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed8edde-9390-490b-a238-71002d9d546e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:40:53,868 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-13 15:40:53,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:53,869 INFO L85 PathProgramCache]: Analyzing trace with hash 444291359, now seen corresponding path program 2 times [2024-11-13 15:40:53,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:53,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012311384] [2024-11-13 15:40:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:53,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:55,282 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 15:40:55,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:55,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012311384] [2024-11-13 15:40:55,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012311384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:40:55,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:40:55,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:40:55,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480868769] [2024-11-13 15:40:55,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:40:55,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:40:55,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:55,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:40:55,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:40:57,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1030 [2024-11-13 15:40:57,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 918 places, 929 transitions, 1891 flow. Second operand has 6 states, 6 states have (on average 726.3333333333334) internal successors, (4358), 6 states have internal predecessors, (4358), 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 15:40:57,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:40:57,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1030 [2024-11-13 15:40:57,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand