./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.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_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/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_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/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_515f623f-ae18-44ca-967d-2c5159adf57c/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 b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:50:22,332 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:50:22,448 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:50:22,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:50:22,457 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:50:22,497 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:50:22,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:50:22,499 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:50:22,500 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:50:22,500 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:50:22,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:50:22,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:50:22,502 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:50:22,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:50:22,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:50:22,504 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:50:22,504 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:50:22,504 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:50:22,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:50:22,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:50:22,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:50:22,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:50:22,505 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:50:22,505 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:50:22,505 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:50:22,505 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:50:22,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:50:22,506 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:50:22,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:50:22,506 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:50:22,506 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:50:22,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:50:22,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:50:22,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:50:22,507 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:50:22,507 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:50:22,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:50:22,507 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:50:22,507 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:50:22,508 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:50:22,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:50:22,509 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_515f623f-ae18-44ca-967d-2c5159adf57c/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 -> b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7 [2024-11-13 15:50:22,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:50:22,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:50:22,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:50:22,906 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:50:22,906 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:50:22,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i Unable to find full path for "g++" [2024-11-13 15:50:25,103 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:50:25,481 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:50:25,485 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i [2024-11-13 15:50:25,507 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/data/8c72d1def/40759e6f3d9b4a26aa141f4b1212bd2c/FLAG0a21a1b74 [2024-11-13 15:50:25,534 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/data/8c72d1def/40759e6f3d9b4a26aa141f4b1212bd2c [2024-11-13 15:50:25,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:50:25,541 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:50:25,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:50:25,543 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:50:25,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:50:25,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:50:25" (1/1) ... [2024-11-13 15:50:25,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10410e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:25, skipping insertion in model container [2024-11-13 15:50:25,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:50:25" (1/1) ... [2024-11-13 15:50:25,615 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:50:26,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:50:26,100 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:50:26,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:50:26,212 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:50:26,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:26 WrapperNode [2024-11-13 15:50:26,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:50:26,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:50:26,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:50:26,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:50:26,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:26" (1/1) ... [2024-11-13 15:50:26,239 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:26" (1/1) ... [2024-11-13 15:50:26,267 INFO L138 Inliner]: procedures = 174, calls = 50, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 133 [2024-11-13 15:50:26,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:50:26,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:50:26,272 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:50:26,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:50:26,282 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:26" (1/1) ... [2024-11-13 15:50:26,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:26" (1/1) ... [2024-11-13 15:50:26,289 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:26" (1/1) ... [2024-11-13 15:50:26,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:26" (1/1) ... [2024-11-13 15:50:26,306 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:26" (1/1) ... [2024-11-13 15:50:26,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:26" (1/1) ... [2024-11-13 15:50:26,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:26" (1/1) ... [2024-11-13 15:50:26,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:26" (1/1) ... [2024-11-13 15:50:26,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:50:26,323 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:50:26,323 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:50:26,323 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:50:26,324 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:26" (1/1) ... [2024-11-13 15:50:26,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:50:26,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:50:26,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:50:26,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:50:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 15:50:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 15:50:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:50:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:50:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:50:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 15:50:26,403 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 15:50:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:50:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 15:50:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 15:50:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:50:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:50:26,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:50:26,406 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 15:50:26,628 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:50:26,632 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:50:27,134 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:50:27,134 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:50:27,262 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:50:27,262 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-13 15:50:27,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:50:27 BoogieIcfgContainer [2024-11-13 15:50:27,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:50:27,266 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:50:27,266 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:50:27,272 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:50:27,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:50:25" (1/3) ... [2024-11-13 15:50:27,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18334be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:50:27, skipping insertion in model container [2024-11-13 15:50:27,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:50:26" (2/3) ... [2024-11-13 15:50:27,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18334be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:50:27, skipping insertion in model container [2024-11-13 15:50:27,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:50:27" (3/3) ... [2024-11-13 15:50:27,277 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_61-invariant_racing.i [2024-11-13 15:50:27,297 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:50:27,299 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_61-invariant_racing.i that has 2 procedures, 179 locations, 1 initial locations, 9 loop locations, and 12 error locations. [2024-11-13 15:50:27,299 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:50:27,426 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 15:50:27,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 199 transitions, 405 flow [2024-11-13 15:50:27,659 INFO L124 PetriNetUnfolderBase]: 32/298 cut-off events. [2024-11-13 15:50:27,665 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:50:27,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 298 events. 32/298 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1117 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 162. Up to 6 conditions per place. [2024-11-13 15:50:27,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 199 transitions, 405 flow [2024-11-13 15:50:27,692 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 199 transitions, 405 flow [2024-11-13 15:50:27,705 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:50:27,723 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;@41c36bbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:50:27,724 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-13 15:50:27,754 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:50:27,754 INFO L124 PetriNetUnfolderBase]: 3/59 cut-off events. [2024-11-13 15:50:27,754 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:50:27,754 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:50:27,755 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] [2024-11-13 15:50:27,756 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-13 15:50:27,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:50:27,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1000064001, now seen corresponding path program 1 times [2024-11-13 15:50:27,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:50:27,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686615099] [2024-11-13 15:50:27,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:50:27,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:50:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:50:28,182 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 15:50:28,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:50:28,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686615099] [2024-11-13 15:50:28,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686615099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:50:28,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:50:28,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:50:28,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480513766] [2024-11-13 15:50:28,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:50:28,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:50:28,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:50:28,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:50:28,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:50:28,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 199 [2024-11-13 15:50:28,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 199 transitions, 405 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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 15:50:28,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:50:28,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 199 [2024-11-13 15:50:28,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:50:28,786 INFO L124 PetriNetUnfolderBase]: 122/1138 cut-off events. [2024-11-13 15:50:28,787 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 15:50:28,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 1138 events. 122/1138 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7196 event pairs, 88 based on Foata normal form. 141/1165 useless extension candidates. Maximal degree in co-relation 1334. Up to 256 conditions per place. [2024-11-13 15:50:28,805 INFO L140 encePairwiseOnDemand]: 178/199 looper letters, 34 selfloop transitions, 2 changer transitions 0/189 dead transitions. [2024-11-13 15:50:28,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 189 transitions, 457 flow [2024-11-13 15:50:28,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:50:28,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:50:28,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2024-11-13 15:50:28,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8777219430485762 [2024-11-13 15:50:28,830 INFO L175 Difference]: Start difference. First operand has 182 places, 199 transitions, 405 flow. Second operand 3 states and 524 transitions. [2024-11-13 15:50:28,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 189 transitions, 457 flow [2024-11-13 15:50:28,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 189 transitions, 457 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:50:28,846 INFO L231 Difference]: Finished difference. Result has 183 places, 179 transitions, 373 flow [2024-11-13 15:50:28,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=373, PETRI_PLACES=183, PETRI_TRANSITIONS=179} [2024-11-13 15:50:28,854 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 1 predicate places. [2024-11-13 15:50:28,854 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 179 transitions, 373 flow [2024-11-13 15:50:28,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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 15:50:28,855 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:50:28,855 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] [2024-11-13 15:50:28,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:50:28,855 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-13 15:50:28,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:50:28,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1515390953, now seen corresponding path program 1 times [2024-11-13 15:50:28,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:50:28,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137187656] [2024-11-13 15:50:28,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:50:28,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:50:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:50:29,906 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 15:50:29,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:50:29,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137187656] [2024-11-13 15:50:29,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137187656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:50:29,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:50:29,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:50:29,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797014677] [2024-11-13 15:50:29,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:50:29,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:50:29,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:50:29,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:50:29,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:50:30,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 199 [2024-11-13 15:50:30,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 179 transitions, 373 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 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 15:50:30,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:50:30,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 199 [2024-11-13 15:50:30,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:50:30,853 INFO L124 PetriNetUnfolderBase]: 225/1392 cut-off events. [2024-11-13 15:50:30,853 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-13 15:50:30,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1915 conditions, 1392 events. 225/1392 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9471 event pairs, 138 based on Foata normal form. 0/1272 useless extension candidates. Maximal degree in co-relation 1824. Up to 369 conditions per place. [2024-11-13 15:50:30,863 INFO L140 encePairwiseOnDemand]: 193/199 looper letters, 72 selfloop transitions, 5 changer transitions 0/218 dead transitions. [2024-11-13 15:50:30,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 218 transitions, 605 flow [2024-11-13 15:50:30,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:50:30,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:50:30,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 930 transitions. [2024-11-13 15:50:30,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7788944723618091 [2024-11-13 15:50:30,868 INFO L175 Difference]: Start difference. First operand has 183 places, 179 transitions, 373 flow. Second operand 6 states and 930 transitions. [2024-11-13 15:50:30,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 218 transitions, 605 flow [2024-11-13 15:50:30,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 218 transitions, 601 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:50:30,876 INFO L231 Difference]: Finished difference. Result has 185 places, 178 transitions, 377 flow [2024-11-13 15:50:30,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=377, PETRI_PLACES=185, PETRI_TRANSITIONS=178} [2024-11-13 15:50:30,879 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 3 predicate places. [2024-11-13 15:50:30,880 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 178 transitions, 377 flow [2024-11-13 15:50:30,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 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 15:50:30,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:50:30,881 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 15:50:30,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:50:30,883 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-13 15:50:30,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:50:30,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1988740382, now seen corresponding path program 1 times [2024-11-13 15:50:30,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:50:30,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790956604] [2024-11-13 15:50:30,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:50:30,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:50:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:50:30,983 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 15:50:30,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:50:30,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790956604] [2024-11-13 15:50:30,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790956604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:50:30,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:50:30,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:50:30,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505187669] [2024-11-13 15:50:30,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:50:30,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:50:30,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:50:30,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:50:30,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:50:31,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 199 [2024-11-13 15:50:31,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 178 transitions, 377 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 15:50:31,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:50:31,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 199 [2024-11-13 15:50:31,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:50:31,631 INFO L124 PetriNetUnfolderBase]: 423/2422 cut-off events. [2024-11-13 15:50:31,631 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-13 15:50:31,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3368 conditions, 2422 events. 423/2422 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 18689 event pairs, 160 based on Foata normal form. 0/2206 useless extension candidates. Maximal degree in co-relation 3300. Up to 544 conditions per place. [2024-11-13 15:50:31,646 INFO L140 encePairwiseOnDemand]: 177/199 looper letters, 61 selfloop transitions, 16 changer transitions 0/213 dead transitions. [2024-11-13 15:50:31,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 213 transitions, 604 flow [2024-11-13 15:50:31,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:50:31,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:50:31,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 497 transitions. [2024-11-13 15:50:31,649 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8324958123953099 [2024-11-13 15:50:31,649 INFO L175 Difference]: Start difference. First operand has 185 places, 178 transitions, 377 flow. Second operand 3 states and 497 transitions. [2024-11-13 15:50:31,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 213 transitions, 604 flow [2024-11-13 15:50:31,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 213 transitions, 594 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:50:31,657 INFO L231 Difference]: Finished difference. Result has 184 places, 194 transitions, 507 flow [2024-11-13 15:50:31,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=507, PETRI_PLACES=184, PETRI_TRANSITIONS=194} [2024-11-13 15:50:31,659 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 2 predicate places. [2024-11-13 15:50:31,659 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 194 transitions, 507 flow [2024-11-13 15:50:31,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 15:50:31,659 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:50:31,661 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] [2024-11-13 15:50:31,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:50:31,662 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-13 15:50:31,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:50:31,663 INFO L85 PathProgramCache]: Analyzing trace with hash 765688521, now seen corresponding path program 1 times [2024-11-13 15:50:31,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:50:31,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207775351] [2024-11-13 15:50:31,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:50:31,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:50:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:50:31,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:50:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:50:31,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:50:31,785 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:50:31,787 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-13 15:50:31,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-13 15:50:31,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-13 15:50:31,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-13 15:50:31,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-13 15:50:31,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-13 15:50:31,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-13 15:50:31,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-13 15:50:31,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-13 15:50:31,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-13 15:50:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-13 15:50:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-13 15:50:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-13 15:50:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-13 15:50:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-13 15:50:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-13 15:50:31,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-13 15:50:31,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-13 15:50:31,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:50:31,796 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 15:50:31,799 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:50:31,799 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 15:50:31,847 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 15:50:31,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 261 transitions, 538 flow [2024-11-13 15:50:31,946 INFO L124 PetriNetUnfolderBase]: 54/487 cut-off events. [2024-11-13 15:50:31,946 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 15:50:31,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 487 events. 54/487 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2085 event pairs, 0 based on Foata normal form. 0/397 useless extension candidates. Maximal degree in co-relation 300. Up to 9 conditions per place. [2024-11-13 15:50:31,950 INFO L82 GeneralOperation]: Start removeDead. Operand has 238 places, 261 transitions, 538 flow [2024-11-13 15:50:31,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 238 places, 261 transitions, 538 flow [2024-11-13 15:50:31,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:50:31,963 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;@41c36bbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:50:31,963 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-13 15:50:31,975 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:50:31,975 INFO L124 PetriNetUnfolderBase]: 3/59 cut-off events. [2024-11-13 15:50:31,976 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:50:31,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:50:31,976 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] [2024-11-13 15:50:31,976 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-13 15:50:31,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:50:31,976 INFO L85 PathProgramCache]: Analyzing trace with hash 851013599, now seen corresponding path program 1 times [2024-11-13 15:50:31,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:50:31,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399210205] [2024-11-13 15:50:31,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:50:31,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:50:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:50:32,060 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 15:50:32,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:50:32,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399210205] [2024-11-13 15:50:32,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399210205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:50:32,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:50:32,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:50:32,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994738843] [2024-11-13 15:50:32,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:50:32,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:50:32,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:50:32,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:50:32,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:50:32,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 261 [2024-11-13 15:50:32,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 261 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 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 15:50:32,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:50:32,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 261 [2024-11-13 15:50:32,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:50:34,840 INFO L124 PetriNetUnfolderBase]: 3074/12526 cut-off events. [2024-11-13 15:50:34,841 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES. [2024-11-13 15:50:34,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17243 conditions, 12526 events. 3074/12526 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 137416 event pairs, 2580 based on Foata normal form. 2223/13475 useless extension candidates. Maximal degree in co-relation 12801. Up to 4643 conditions per place. [2024-11-13 15:50:34,977 INFO L140 encePairwiseOnDemand]: 234/261 looper letters, 47 selfloop transitions, 2 changer transitions 0/246 dead transitions. [2024-11-13 15:50:34,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 246 transitions, 606 flow [2024-11-13 15:50:34,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:50:34,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:50:34,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 675 transitions. [2024-11-13 15:50:34,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8620689655172413 [2024-11-13 15:50:34,980 INFO L175 Difference]: Start difference. First operand has 238 places, 261 transitions, 538 flow. Second operand 3 states and 675 transitions. [2024-11-13 15:50:34,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 246 transitions, 606 flow [2024-11-13 15:50:34,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 246 transitions, 606 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:50:34,993 INFO L231 Difference]: Finished difference. Result has 239 places, 236 transitions, 498 flow [2024-11-13 15:50:34,994 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=239, PETRI_TRANSITIONS=236} [2024-11-13 15:50:34,995 INFO L277 CegarLoopForPetriNet]: 238 programPoint places, 1 predicate places. [2024-11-13 15:50:34,995 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 236 transitions, 498 flow [2024-11-13 15:50:34,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 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 15:50:34,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:50:34,996 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] [2024-11-13 15:50:34,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:50:34,996 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-13 15:50:34,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:50:34,998 INFO L85 PathProgramCache]: Analyzing trace with hash 852536476, now seen corresponding path program 1 times [2024-11-13 15:50:34,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:50:34,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540383126] [2024-11-13 15:50:34,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:50:34,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:50:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:50:35,663 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 15:50:35,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:50:35,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540383126] [2024-11-13 15:50:35,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540383126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:50:35,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:50:35,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:50:35,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275482434] [2024-11-13 15:50:35,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:50:35,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:50:35,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:50:35,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:50:35,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:50:35,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 261 [2024-11-13 15:50:35,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 236 transitions, 498 flow. Second operand has 6 states, 6 states have (on average 187.5) internal successors, (1125), 6 states have internal predecessors, (1125), 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 15:50:35,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:50:35,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 261 [2024-11-13 15:50:35,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:50:39,870 INFO L124 PetriNetUnfolderBase]: 5301/19328 cut-off events. [2024-11-13 15:50:39,870 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-11-13 15:50:39,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28082 conditions, 19328 events. 5301/19328 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 226420 event pairs, 500 based on Foata normal form. 0/17851 useless extension candidates. Maximal degree in co-relation 9531. Up to 6346 conditions per place. [2024-11-13 15:50:40,004 INFO L140 encePairwiseOnDemand]: 255/261 looper letters, 124 selfloop transitions, 6 changer transitions 0/315 dead transitions. [2024-11-13 15:50:40,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 315 transitions, 916 flow [2024-11-13 15:50:40,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:50:40,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:50:40,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1246 transitions. [2024-11-13 15:50:40,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7956577266922095 [2024-11-13 15:50:40,011 INFO L175 Difference]: Start difference. First operand has 239 places, 236 transitions, 498 flow. Second operand 6 states and 1246 transitions. [2024-11-13 15:50:40,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 315 transitions, 916 flow [2024-11-13 15:50:40,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 315 transitions, 914 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:50:40,023 INFO L231 Difference]: Finished difference. Result has 242 places, 235 transitions, 506 flow [2024-11-13 15:50:40,025 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=506, PETRI_PLACES=242, PETRI_TRANSITIONS=235} [2024-11-13 15:50:40,027 INFO L277 CegarLoopForPetriNet]: 238 programPoint places, 4 predicate places. [2024-11-13 15:50:40,029 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 235 transitions, 506 flow [2024-11-13 15:50:40,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.5) internal successors, (1125), 6 states have internal predecessors, (1125), 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 15:50:40,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:50:40,030 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 15:50:40,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:50:40,030 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-13 15:50:40,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:50:40,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1385446247, now seen corresponding path program 1 times [2024-11-13 15:50:40,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:50:40,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716025987] [2024-11-13 15:50:40,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:50:40,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:50:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:50:40,105 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 15:50:40,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:50:40,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716025987] [2024-11-13 15:50:40,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716025987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:50:40,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:50:40,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:50:40,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611756992] [2024-11-13 15:50:40,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:50:40,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:50:40,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:50:40,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:50:40,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:50:40,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 261 [2024-11-13 15:50:40,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 235 transitions, 506 flow. Second operand has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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 15:50:40,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:50:40,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 261 [2024-11-13 15:50:40,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:50:48,352 INFO L124 PetriNetUnfolderBase]: 23170/71531 cut-off events. [2024-11-13 15:50:48,352 INFO L125 PetriNetUnfolderBase]: For 513/513 co-relation queries the response was YES. [2024-11-13 15:50:48,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108842 conditions, 71531 events. 23170/71531 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 1225. Compared 936028 event pairs, 8859 based on Foata normal form. 0/64658 useless extension candidates. Maximal degree in co-relation 88379. Up to 22148 conditions per place. [2024-11-13 15:50:48,969 INFO L140 encePairwiseOnDemand]: 228/261 looper letters, 96 selfloop transitions, 24 changer transitions 0/290 dead transitions. [2024-11-13 15:50:48,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 290 transitions, 867 flow [2024-11-13 15:50:48,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:50:48,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:50:48,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2024-11-13 15:50:48,972 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8199233716475096 [2024-11-13 15:50:48,972 INFO L175 Difference]: Start difference. First operand has 242 places, 235 transitions, 506 flow. Second operand 3 states and 642 transitions. [2024-11-13 15:50:48,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 290 transitions, 867 flow [2024-11-13 15:50:48,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 290 transitions, 855 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:50:48,980 INFO L231 Difference]: Finished difference. Result has 241 places, 259 transitions, 704 flow [2024-11-13 15:50:48,981 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=241, PETRI_TRANSITIONS=259} [2024-11-13 15:50:48,981 INFO L277 CegarLoopForPetriNet]: 238 programPoint places, 3 predicate places. [2024-11-13 15:50:48,982 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 259 transitions, 704 flow [2024-11-13 15:50:48,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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 15:50:48,982 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:50:48,983 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] [2024-11-13 15:50:48,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:50:48,983 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-13 15:50:48,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:50:48,984 INFO L85 PathProgramCache]: Analyzing trace with hash 377979441, now seen corresponding path program 1 times [2024-11-13 15:50:48,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:50:48,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570270289] [2024-11-13 15:50:48,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:50:48,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:50:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:50:49,245 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 15:50:49,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:50:49,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570270289] [2024-11-13 15:50:49,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570270289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:50:49,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868462128] [2024-11-13 15:50:49,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:50:49,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:50:49,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:50:49,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:50:49,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:50:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:50:49,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:50:49,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:50:49,437 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 15:50:49,437 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:50:49,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868462128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:50:49,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:50:49,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-13 15:50:49,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812841030] [2024-11-13 15:50:49,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:50:49,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:50:49,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:50:49,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:50:49,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:50:49,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 261 [2024-11-13 15:50:49,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 259 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 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 15:50:49,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:50:49,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 261 [2024-11-13 15:50:49,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:51:00,200 INFO L124 PetriNetUnfolderBase]: 24263/79508 cut-off events. [2024-11-13 15:51:00,200 INFO L125 PetriNetUnfolderBase]: For 25581/26632 co-relation queries the response was YES. [2024-11-13 15:51:00,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142045 conditions, 79508 events. 24263/79508 cut-off events. For 25581/26632 co-relation queries the response was YES. Maximal size of possible extension queue 1371. Compared 1077778 event pairs, 15275 based on Foata normal form. 249/72833 useless extension candidates. Maximal degree in co-relation 137745. Up to 33214 conditions per place. [2024-11-13 15:51:00,747 INFO L140 encePairwiseOnDemand]: 247/261 looper letters, 86 selfloop transitions, 24 changer transitions 0/301 dead transitions. [2024-11-13 15:51:00,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 301 transitions, 1068 flow [2024-11-13 15:51:00,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:51:00,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:51:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 635 transitions. [2024-11-13 15:51:00,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8109833971902938 [2024-11-13 15:51:00,755 INFO L175 Difference]: Start difference. First operand has 241 places, 259 transitions, 704 flow. Second operand 3 states and 635 transitions. [2024-11-13 15:51:00,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 301 transitions, 1068 flow [2024-11-13 15:51:00,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 301 transitions, 1000 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:51:00,870 INFO L231 Difference]: Finished difference. Result has 243 places, 281 transitions, 882 flow [2024-11-13 15:51:00,874 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=882, PETRI_PLACES=243, PETRI_TRANSITIONS=281} [2024-11-13 15:51:00,874 INFO L277 CegarLoopForPetriNet]: 238 programPoint places, 5 predicate places. [2024-11-13 15:51:00,875 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 281 transitions, 882 flow [2024-11-13 15:51:00,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 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 15:51:00,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:51:00,878 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] [2024-11-13 15:51:00,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:51:01,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-13 15:51:01,079 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-13 15:51:01,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:51:01,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1650936774, now seen corresponding path program 1 times [2024-11-13 15:51:01,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:51:01,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688879486] [2024-11-13 15:51:01,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:51:01,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:51:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:51:01,248 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 15:51:01,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:51:01,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688879486] [2024-11-13 15:51:01,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688879486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:51:01,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793628518] [2024-11-13 15:51:01,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:51:01,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:51:01,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:51:01,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:51:01,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:51:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:51:01,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:51:01,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:51:01,529 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 15:51:01,533 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:51:01,629 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 15:51:01,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793628518] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:51:01,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:51:01,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 15:51:01,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587634556] [2024-11-13 15:51:01,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:51:01,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:51:01,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:51:01,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:51:01,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:51:01,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 261 [2024-11-13 15:51:01,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 281 transitions, 882 flow. Second operand has 10 states, 10 states have (on average 197.4) internal successors, (1974), 10 states have internal predecessors, (1974), 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 15:51:01,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:51:01,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 261 [2024-11-13 15:51:01,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:51:03,127 INFO L124 PetriNetUnfolderBase]: 1928/7346 cut-off events. [2024-11-13 15:51:03,127 INFO L125 PetriNetUnfolderBase]: For 721/814 co-relation queries the response was YES. [2024-11-13 15:51:03,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11603 conditions, 7346 events. 1928/7346 cut-off events. For 721/814 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 73107 event pairs, 365 based on Foata normal form. 251/7139 useless extension candidates. Maximal degree in co-relation 11595. Up to 1277 conditions per place. [2024-11-13 15:51:03,157 INFO L140 encePairwiseOnDemand]: 256/261 looper letters, 116 selfloop transitions, 7 changer transitions 0/266 dead transitions. [2024-11-13 15:51:03,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 266 transitions, 910 flow [2024-11-13 15:51:03,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:51:03,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 15:51:03,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1880 transitions. [2024-11-13 15:51:03,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.800340570455513 [2024-11-13 15:51:03,164 INFO L175 Difference]: Start difference. First operand has 243 places, 281 transitions, 882 flow. Second operand 9 states and 1880 transitions. [2024-11-13 15:51:03,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 266 transitions, 910 flow [2024-11-13 15:51:03,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 266 transitions, 870 flow, removed 20 selfloop flow, removed 1 redundant places. [2024-11-13 15:51:03,175 INFO L231 Difference]: Finished difference. Result has 171 places, 174 transitions, 454 flow [2024-11-13 15:51:03,176 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=454, PETRI_PLACES=171, PETRI_TRANSITIONS=174} [2024-11-13 15:51:03,176 INFO L277 CegarLoopForPetriNet]: 238 programPoint places, -67 predicate places. [2024-11-13 15:51:03,176 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 174 transitions, 454 flow [2024-11-13 15:51:03,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 197.4) internal successors, (1974), 10 states have internal predecessors, (1974), 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 15:51:03,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:51:03,178 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] [2024-11-13 15:51:03,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:51:03,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_515f623f-ae18-44ca-967d-2c5159adf57c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:51:03,379 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-13 15:51:03,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:51:03,379 INFO L85 PathProgramCache]: Analyzing trace with hash -574156489, now seen corresponding path program 1 times [2024-11-13 15:51:03,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:51:03,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508970614] [2024-11-13 15:51:03,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:51:03,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:51:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:51:03,456 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 15:51:03,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:51:03,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508970614] [2024-11-13 15:51:03,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508970614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:51:03,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:51:03,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:51:03,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22111812] [2024-11-13 15:51:03,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:51:03,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:51:03,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:51:03,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:51:03,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:51:03,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 261 [2024-11-13 15:51:03,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 174 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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 15:51:03,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:51:03,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 261 [2024-11-13 15:51:03,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:51:03,548 INFO L124 PetriNetUnfolderBase]: 35/231 cut-off events. [2024-11-13 15:51:03,548 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-13 15:51:03,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 231 events. 35/231 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 794 event pairs, 32 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 359. Up to 79 conditions per place. [2024-11-13 15:51:03,550 INFO L140 encePairwiseOnDemand]: 258/261 looper letters, 12 selfloop transitions, 1 changer transitions 0/80 dead transitions. [2024-11-13 15:51:03,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 80 transitions, 228 flow [2024-11-13 15:51:03,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:51:03,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:51:03,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2024-11-13 15:51:03,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7586206896551724 [2024-11-13 15:51:03,554 INFO L175 Difference]: Start difference. First operand has 171 places, 174 transitions, 454 flow. Second operand 3 states and 594 transitions. [2024-11-13 15:51:03,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 80 transitions, 228 flow [2024-11-13 15:51:03,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 80 transitions, 213 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-13 15:51:03,556 INFO L231 Difference]: Finished difference. Result has 90 places, 80 transitions, 189 flow [2024-11-13 15:51:03,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=90, PETRI_TRANSITIONS=80} [2024-11-13 15:51:03,558 INFO L277 CegarLoopForPetriNet]: 238 programPoint places, -148 predicate places. [2024-11-13 15:51:03,558 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 80 transitions, 189 flow [2024-11-13 15:51:03,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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 15:51:03,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:51:03,559 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:51:03,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:51:03,561 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-13 15:51:03,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:51:03,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1384733788, now seen corresponding path program 1 times [2024-11-13 15:51:03,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:51:03,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611864598] [2024-11-13 15:51:03,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:51:03,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:51:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:51:03,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:51:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:51:03,672 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:51:03,673 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:51:03,673 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-13 15:51:03,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-13 15:51:03,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-13 15:51:03,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-13 15:51:03,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-13 15:51:03,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-13 15:51:03,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-13 15:51:03,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-13 15:51:03,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-13 15:51:03,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-13 15:51:03,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-13 15:51:03,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-13 15:51:03,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-13 15:51:03,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-13 15:51:03,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-13 15:51:03,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-13 15:51:03,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-13 15:51:03,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-13 15:51:03,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-13 15:51:03,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-13 15:51:03,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-13 15:51:03,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-13 15:51:03,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-13 15:51:03,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:51:03,676 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:51:03,677 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:51:03,677 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-13 15:51:03,728 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 15:51:03,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 323 transitions, 673 flow [2024-11-13 15:51:03,858 INFO L124 PetriNetUnfolderBase]: 81/721 cut-off events. [2024-11-13 15:51:03,859 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-13 15:51:03,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 721 events. 81/721 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3269 event pairs, 1 based on Foata normal form. 0/589 useless extension candidates. Maximal degree in co-relation 495. Up to 16 conditions per place. [2024-11-13 15:51:03,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 323 transitions, 673 flow [2024-11-13 15:51:03,873 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 294 places, 323 transitions, 673 flow [2024-11-13 15:51:03,874 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:51:03,874 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;@41c36bbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:51:03,874 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-13 15:51:03,879 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:51:03,879 INFO L124 PetriNetUnfolderBase]: 3/59 cut-off events. [2024-11-13 15:51:03,879 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:51:03,879 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:51:03,879 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] [2024-11-13 15:51:03,879 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-13 15:51:03,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:51:03,880 INFO L85 PathProgramCache]: Analyzing trace with hash 508880639, now seen corresponding path program 1 times [2024-11-13 15:51:03,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:51:03,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939744] [2024-11-13 15:51:03,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:51:03,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:51:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:51:03,940 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 15:51:03,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:51:03,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939744] [2024-11-13 15:51:03,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:51:03,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:51:03,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:51:03,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631885005] [2024-11-13 15:51:03,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:51:03,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:51:03,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:51:03,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:51:03,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:51:03,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 323 [2024-11-13 15:51:03,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 323 transitions, 673 flow. Second operand has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 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 15:51:03,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:51:03,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 323 [2024-11-13 15:51:03,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:51:27,460 INFO L124 PetriNetUnfolderBase]: 52130/156546 cut-off events. [2024-11-13 15:51:27,460 INFO L125 PetriNetUnfolderBase]: For 2131/2131 co-relation queries the response was YES.