./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.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_7df4422d-481e-475b-9ef3-8071a757c1b2/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df4422d-481e-475b-9ef3-8071a757c1b2/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_7df4422d-481e-475b-9ef3-8071a757c1b2/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df4422d-481e-475b-9ef3-8071a757c1b2/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df4422d-481e-475b-9ef3-8071a757c1b2/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_7df4422d-481e-475b-9ef3-8071a757c1b2/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 2c4a731d968c8b3136fe56f501bb6493c1ca96e59709a347334934436fe70eb7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:49:53,687 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:49:53,766 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df4422d-481e-475b-9ef3-8071a757c1b2/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 13:49:53,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:49:53,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:49:53,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:49:53,812 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:49:53,812 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:49:53,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:49:53,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:49:53,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:49:53,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:49:53,814 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:49:53,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:49:53,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:49:53,815 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:49:53,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:49:53,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:49:53,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:49:53,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:49:53,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:49:53,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:49:53,816 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 13:49:53,816 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:49:53,816 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:49:53,816 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:49:53,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:49:53,817 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:49:53,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:49:53,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:49:53,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:49:53,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:49:53,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:49:53,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:49:53,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:49:53,818 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:49:53,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:49:53,818 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:49:53,818 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:49:53,818 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:49:53,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:49:53,818 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_7df4422d-481e-475b-9ef3-8071a757c1b2/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 -> 2c4a731d968c8b3136fe56f501bb6493c1ca96e59709a347334934436fe70eb7 [2024-11-13 13:49:54,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:49:54,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:49:54,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:49:54,140 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:49:54,140 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:49:54,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df4422d-481e-475b-9ef3-8071a757c1b2/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i Unable to find full path for "g++" [2024-11-13 13:49:56,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:49:56,326 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:49:56,329 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df4422d-481e-475b-9ef3-8071a757c1b2/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i [2024-11-13 13:49:56,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df4422d-481e-475b-9ef3-8071a757c1b2/bin/uautomizer-verify-qhAvR1uOyd/data/71f09bc4b/4e734bf9f49047ad914a8f9cd65138e1/FLAG1c3490f35 [2024-11-13 13:49:56,357 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df4422d-481e-475b-9ef3-8071a757c1b2/bin/uautomizer-verify-qhAvR1uOyd/data/71f09bc4b/4e734bf9f49047ad914a8f9cd65138e1 [2024-11-13 13:49:56,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:49:56,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:49:56,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:49:56,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:49:56,367 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:49:56,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:49:56" (1/1) ... [2024-11-13 13:49:56,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54a788e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56, skipping insertion in model container [2024-11-13 13:49:56,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:49:56" (1/1) ... [2024-11-13 13:49:56,413 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:49:56,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:49:56,840 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:49:56,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:49:56,978 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:49:56,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56 WrapperNode [2024-11-13 13:49:56,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:49:56,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:49:56,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:49:56,981 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:49:56,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56" (1/1) ... [2024-11-13 13:49:57,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56" (1/1) ... [2024-11-13 13:49:57,036 INFO L138 Inliner]: procedures = 280, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2024-11-13 13:49:57,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:49:57,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:49:57,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:49:57,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:49:57,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56" (1/1) ... [2024-11-13 13:49:57,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56" (1/1) ... [2024-11-13 13:49:57,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56" (1/1) ... [2024-11-13 13:49:57,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56" (1/1) ... [2024-11-13 13:49:57,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56" (1/1) ... [2024-11-13 13:49:57,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56" (1/1) ... [2024-11-13 13:49:57,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56" (1/1) ... [2024-11-13 13:49:57,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56" (1/1) ... [2024-11-13 13:49:57,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:49:57,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:49:57,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:49:57,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:49:57,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56" (1/1) ... [2024-11-13 13:49:57,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:49:57,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df4422d-481e-475b-9ef3-8071a757c1b2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:49:57,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df4422d-481e-475b-9ef3-8071a757c1b2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:49:57,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df4422d-481e-475b-9ef3-8071a757c1b2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:49:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 13:49:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 13:49:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 13:49:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 13:49:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 13:49:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 13:49:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 13:49:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:49:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 13:49:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-13 13:49:57,153 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-13 13:49:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:49:57,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:49:57,154 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 13:49:57,334 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:49:57,336 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:49:57,636 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 13:49:57,636 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:49:57,659 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:49:57,660 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 13:49:57,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:49:57 BoogieIcfgContainer [2024-11-13 13:49:57,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:49:57,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:49:57,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:49:57,671 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:49:57,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:49:56" (1/3) ... [2024-11-13 13:49:57,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66baee58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:49:57, skipping insertion in model container [2024-11-13 13:49:57,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:49:56" (2/3) ... [2024-11-13 13:49:57,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66baee58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:49:57, skipping insertion in model container [2024-11-13 13:49:57,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:49:57" (3/3) ... [2024-11-13 13:49:57,674 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-inc.i [2024-11-13 13:49:57,691 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:49:57,692 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG per-thread-index-inc.i that has 2 procedures, 122 locations, 1 initial locations, 2 loop locations, and 9 error locations. [2024-11-13 13:49:57,693 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 13:49:57,828 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 13:49:57,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 126 transitions, 259 flow [2024-11-13 13:49:57,986 INFO L124 PetriNetUnfolderBase]: 6/161 cut-off events. [2024-11-13 13:49:57,991 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 13:49:58,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 161 events. 6/161 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 247 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 79. Up to 4 conditions per place. [2024-11-13 13:49:58,001 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 126 transitions, 259 flow [2024-11-13 13:49:58,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 126 transitions, 259 flow [2024-11-13 13:49:58,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:49:58,026 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;@665d14f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:49:58,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-13 13:49:58,044 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:49:58,045 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-11-13 13:49:58,045 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:49:58,045 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:49:58,046 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] [2024-11-13 13:49:58,047 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-13 13:49:58,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:49:58,053 INFO L85 PathProgramCache]: Analyzing trace with hash -2096522105, now seen corresponding path program 1 times [2024-11-13 13:49:58,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:49:58,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406333160] [2024-11-13 13:49:58,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:49:58,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:49:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:49:58,369 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 13:49:58,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:49:58,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406333160] [2024-11-13 13:49:58,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406333160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:49:58,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:49:58,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:49:58,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400611882] [2024-11-13 13:49:58,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:49:58,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:49:58,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:49:58,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:49:58,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:49:58,442 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 126 [2024-11-13 13:49:58,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 126 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 13:49:58,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:49:58,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 126 [2024-11-13 13:49:58,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:49:58,525 INFO L124 PetriNetUnfolderBase]: 7/233 cut-off events. [2024-11-13 13:49:58,525 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 13:49:58,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 233 events. 7/233 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 580 event pairs, 6 based on Foata normal form. 9/214 useless extension candidates. Maximal degree in co-relation 172. Up to 25 conditions per place. [2024-11-13 13:49:58,528 INFO L140 encePairwiseOnDemand]: 120/126 looper letters, 10 selfloop transitions, 2 changer transitions 1/122 dead transitions. [2024-11-13 13:49:58,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 122 transitions, 275 flow [2024-11-13 13:49:58,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:49:58,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:49:58,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2024-11-13 13:49:58,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9153439153439153 [2024-11-13 13:49:58,545 INFO L175 Difference]: Start difference. First operand has 125 places, 126 transitions, 259 flow. Second operand 3 states and 346 transitions. [2024-11-13 13:49:58,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 122 transitions, 275 flow [2024-11-13 13:49:58,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 122 transitions, 275 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:49:58,554 INFO L231 Difference]: Finished difference. Result has 126 places, 121 transitions, 253 flow [2024-11-13 13:49:58,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=126, PETRI_TRANSITIONS=121} [2024-11-13 13:49:58,561 INFO L277 CegarLoopForPetriNet]: 125 programPoint places, 1 predicate places. [2024-11-13 13:49:58,561 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 121 transitions, 253 flow [2024-11-13 13:49:58,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 13:49:58,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:49:58,562 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] [2024-11-13 13:49:58,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:49:58,563 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-13 13:49:58,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:49:58,564 INFO L85 PathProgramCache]: Analyzing trace with hash 576323148, now seen corresponding path program 1 times [2024-11-13 13:49:58,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:49:58,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411047000] [2024-11-13 13:49:58,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:49:58,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:49:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:49:58,709 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 13:49:58,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:49:58,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411047000] [2024-11-13 13:49:58,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411047000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:49:58,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:49:58,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:49:58,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260618265] [2024-11-13 13:49:58,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:49:58,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:49:58,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:49:58,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:49:58,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:49:58,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 126 [2024-11-13 13:49:58,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 121 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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 13:49:58,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:49:58,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 126 [2024-11-13 13:49:58,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:49:58,872 INFO L124 PetriNetUnfolderBase]: 9/217 cut-off events. [2024-11-13 13:49:58,872 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-13 13:49:58,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 217 events. 9/217 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 473 event pairs, 2 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 211. Up to 24 conditions per place. [2024-11-13 13:49:58,875 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 11 selfloop transitions, 2 changer transitions 0/123 dead transitions. [2024-11-13 13:49:58,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 123 transitions, 283 flow [2024-11-13 13:49:58,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:49:58,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:49:58,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2024-11-13 13:49:58,881 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2024-11-13 13:49:58,881 INFO L175 Difference]: Start difference. First operand has 126 places, 121 transitions, 253 flow. Second operand 3 states and 351 transitions. [2024-11-13 13:49:58,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 123 transitions, 283 flow [2024-11-13 13:49:58,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 123 transitions, 279 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:49:58,886 INFO L231 Difference]: Finished difference. Result has 124 places, 121 transitions, 259 flow [2024-11-13 13:49:58,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=259, PETRI_PLACES=124, PETRI_TRANSITIONS=121} [2024-11-13 13:49:58,887 INFO L277 CegarLoopForPetriNet]: 125 programPoint places, -1 predicate places. [2024-11-13 13:49:58,887 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 121 transitions, 259 flow [2024-11-13 13:49:58,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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 13:49:58,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:49:58,888 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] [2024-11-13 13:49:58,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:49:58,888 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-13 13:49:58,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:49:58,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1433081314, now seen corresponding path program 1 times [2024-11-13 13:49:58,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:49:58,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337622778] [2024-11-13 13:49:58,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:49:58,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:49:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:49:59,697 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 13:49:59,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:49:59,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337622778] [2024-11-13 13:49:59,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337622778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:49:59,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:49:59,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:49:59,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506449382] [2024-11-13 13:49:59,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:49:59,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:49:59,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:49:59,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:49:59,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:49:59,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 126 [2024-11-13 13:49:59,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 121 transitions, 259 flow. Second operand has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:49:59,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:49:59,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 126 [2024-11-13 13:49:59,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:00,192 INFO L124 PetriNetUnfolderBase]: 101/534 cut-off events. [2024-11-13 13:50:00,193 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-13 13:50:00,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 534 events. 101/534 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2769 event pairs, 39 based on Foata normal form. 0/481 useless extension candidates. Maximal degree in co-relation 682. Up to 195 conditions per place. [2024-11-13 13:50:00,202 INFO L140 encePairwiseOnDemand]: 115/126 looper letters, 33 selfloop transitions, 22 changer transitions 0/150 dead transitions. [2024-11-13 13:50:00,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 150 transitions, 427 flow [2024-11-13 13:50:00,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:50:00,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:50:00,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 638 transitions. [2024-11-13 13:50:00,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.843915343915344 [2024-11-13 13:50:00,206 INFO L175 Difference]: Start difference. First operand has 124 places, 121 transitions, 259 flow. Second operand 6 states and 638 transitions. [2024-11-13 13:50:00,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 150 transitions, 427 flow [2024-11-13 13:50:00,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 150 transitions, 427 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:50:00,216 INFO L231 Difference]: Finished difference. Result has 134 places, 142 transitions, 409 flow [2024-11-13 13:50:00,216 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=409, PETRI_PLACES=134, PETRI_TRANSITIONS=142} [2024-11-13 13:50:00,217 INFO L277 CegarLoopForPetriNet]: 125 programPoint places, 9 predicate places. [2024-11-13 13:50:00,217 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 142 transitions, 409 flow [2024-11-13 13:50:00,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:00,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:00,218 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] [2024-11-13 13:50:00,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:50:00,219 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-13 13:50:00,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:00,219 INFO L85 PathProgramCache]: Analyzing trace with hash -153978345, now seen corresponding path program 1 times [2024-11-13 13:50:00,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:00,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570946779] [2024-11-13 13:50:00,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:00,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:00,381 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 13:50:00,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:00,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570946779] [2024-11-13 13:50:00,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570946779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:00,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:00,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:50:00,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742517745] [2024-11-13 13:50:00,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:00,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:50:00,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:00,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:50:00,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:50:00,522 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 126 [2024-11-13 13:50:00,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 142 transitions, 409 flow. Second operand has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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 13:50:00,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:00,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 126 [2024-11-13 13:50:00,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:00,658 INFO L124 PetriNetUnfolderBase]: 48/382 cut-off events. [2024-11-13 13:50:00,658 INFO L125 PetriNetUnfolderBase]: For 35/43 co-relation queries the response was YES. [2024-11-13 13:50:00,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 382 events. 48/382 cut-off events. For 35/43 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1481 event pairs, 6 based on Foata normal form. 1/360 useless extension candidates. Maximal degree in co-relation 495. Up to 53 conditions per place. [2024-11-13 13:50:00,661 INFO L140 encePairwiseOnDemand]: 118/126 looper letters, 15 selfloop transitions, 2 changer transitions 5/149 dead transitions. [2024-11-13 13:50:00,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 149 transitions, 467 flow [2024-11-13 13:50:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:50:00,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:50:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 671 transitions. [2024-11-13 13:50:00,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8875661375661376 [2024-11-13 13:50:00,664 INFO L175 Difference]: Start difference. First operand has 134 places, 142 transitions, 409 flow. Second operand 6 states and 671 transitions. [2024-11-13 13:50:00,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 149 transitions, 467 flow [2024-11-13 13:50:00,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 149 transitions, 467 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:50:00,676 INFO L231 Difference]: Finished difference. Result has 143 places, 142 transitions, 427 flow [2024-11-13 13:50:00,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=427, PETRI_PLACES=143, PETRI_TRANSITIONS=142} [2024-11-13 13:50:00,678 INFO L277 CegarLoopForPetriNet]: 125 programPoint places, 18 predicate places. [2024-11-13 13:50:00,678 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 142 transitions, 427 flow [2024-11-13 13:50:00,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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 13:50:00,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:00,680 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] [2024-11-13 13:50:00,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:50:00,680 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-13 13:50:00,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:00,682 INFO L85 PathProgramCache]: Analyzing trace with hash 976953279, now seen corresponding path program 1 times [2024-11-13 13:50:00,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:00,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366866494] [2024-11-13 13:50:00,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:00,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:00,745 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 13:50:00,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:00,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366866494] [2024-11-13 13:50:00,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366866494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:00,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:00,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:50:00,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604021717] [2024-11-13 13:50:00,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:00,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:50:00,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:00,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:50:00,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:50:00,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 126 [2024-11-13 13:50:00,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 142 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 13:50:00,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:00,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 126 [2024-11-13 13:50:00,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:00,834 INFO L124 PetriNetUnfolderBase]: 30/278 cut-off events. [2024-11-13 13:50:00,834 INFO L125 PetriNetUnfolderBase]: For 30/39 co-relation queries the response was YES. [2024-11-13 13:50:00,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 278 events. 30/278 cut-off events. For 30/39 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 881 event pairs, 0 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 381. Up to 49 conditions per place. [2024-11-13 13:50:00,836 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 7 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2024-11-13 13:50:00,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 140 transitions, 441 flow [2024-11-13 13:50:00,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:50:00,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:50:00,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2024-11-13 13:50:00,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.917989417989418 [2024-11-13 13:50:00,839 INFO L175 Difference]: Start difference. First operand has 143 places, 142 transitions, 427 flow. Second operand 3 states and 347 transitions. [2024-11-13 13:50:00,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 140 transitions, 441 flow [2024-11-13 13:50:00,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 140 transitions, 427 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-13 13:50:00,845 INFO L231 Difference]: Finished difference. Result has 135 places, 140 transitions, 413 flow [2024-11-13 13:50:00,848 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=413, PETRI_PLACES=135, PETRI_TRANSITIONS=140} [2024-11-13 13:50:00,850 INFO L277 CegarLoopForPetriNet]: 125 programPoint places, 10 predicate places. [2024-11-13 13:50:00,850 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 140 transitions, 413 flow [2024-11-13 13:50:00,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 13:50:00,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:00,850 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:50:00,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:50:00,850 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-13 13:50:00,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:00,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1138663332, now seen corresponding path program 1 times [2024-11-13 13:50:00,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:00,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230245840] [2024-11-13 13:50:00,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:00,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:00,923 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 13:50:00,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:00,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230245840] [2024-11-13 13:50:00,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230245840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:00,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:00,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:50:00,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690287079] [2024-11-13 13:50:00,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:00,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:50:00,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:00,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:50:00,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:50:00,943 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 126 [2024-11-13 13:50:00,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 140 transitions, 413 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 13:50:00,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:00,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 126 [2024-11-13 13:50:00,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:01,023 INFO L124 PetriNetUnfolderBase]: 30/277 cut-off events. [2024-11-13 13:50:01,023 INFO L125 PetriNetUnfolderBase]: For 30/39 co-relation queries the response was YES. [2024-11-13 13:50:01,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 277 events. 30/277 cut-off events. For 30/39 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 883 event pairs, 0 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 367. Up to 49 conditions per place. [2024-11-13 13:50:01,024 INFO L140 encePairwiseOnDemand]: 123/126 looper letters, 8 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2024-11-13 13:50:01,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 139 transitions, 431 flow [2024-11-13 13:50:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:50:01,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:50:01,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2024-11-13 13:50:01,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.917989417989418 [2024-11-13 13:50:01,027 INFO L175 Difference]: Start difference. First operand has 135 places, 140 transitions, 413 flow. Second operand 3 states and 347 transitions. [2024-11-13 13:50:01,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 139 transitions, 431 flow [2024-11-13 13:50:01,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 139 transitions, 427 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:50:01,033 INFO L231 Difference]: Finished difference. Result has 134 places, 139 transitions, 411 flow [2024-11-13 13:50:01,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=411, PETRI_PLACES=134, PETRI_TRANSITIONS=139} [2024-11-13 13:50:01,034 INFO L277 CegarLoopForPetriNet]: 125 programPoint places, 9 predicate places. [2024-11-13 13:50:01,034 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 139 transitions, 411 flow [2024-11-13 13:50:01,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 13:50:01,035 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:01,035 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 13:50:01,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:50:01,035 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-13 13:50:01,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:01,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1202215647, now seen corresponding path program 1 times [2024-11-13 13:50:01,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:01,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594489542] [2024-11-13 13:50:01,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:01,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:01,562 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 13:50:01,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:01,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594489542] [2024-11-13 13:50:01,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594489542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:01,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:01,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:50:01,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801112097] [2024-11-13 13:50:01,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:01,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:50:01,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:01,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:50:01,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:50:01,733 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 126 [2024-11-13 13:50:01,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 139 transitions, 411 flow. Second operand has 6 states, 6 states have (on average 101.16666666666667) internal successors, (607), 6 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:01,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:01,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 126 [2024-11-13 13:50:01,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:01,919 INFO L124 PetriNetUnfolderBase]: 104/620 cut-off events. [2024-11-13 13:50:01,919 INFO L125 PetriNetUnfolderBase]: For 103/103 co-relation queries the response was YES. [2024-11-13 13:50:01,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1145 conditions, 620 events. 104/620 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3278 event pairs, 26 based on Foata normal form. 0/592 useless extension candidates. Maximal degree in co-relation 1023. Up to 203 conditions per place. [2024-11-13 13:50:01,924 INFO L140 encePairwiseOnDemand]: 115/126 looper letters, 48 selfloop transitions, 21 changer transitions 7/169 dead transitions. [2024-11-13 13:50:01,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 169 transitions, 652 flow [2024-11-13 13:50:01,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:50:01,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:50:01,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 649 transitions. [2024-11-13 13:50:01,927 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8584656084656085 [2024-11-13 13:50:01,927 INFO L175 Difference]: Start difference. First operand has 134 places, 139 transitions, 411 flow. Second operand 6 states and 649 transitions. [2024-11-13 13:50:01,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 169 transitions, 652 flow [2024-11-13 13:50:01,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 169 transitions, 648 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:50:01,933 INFO L231 Difference]: Finished difference. Result has 142 places, 154 transitions, 568 flow [2024-11-13 13:50:01,934 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=568, PETRI_PLACES=142, PETRI_TRANSITIONS=154} [2024-11-13 13:50:01,935 INFO L277 CegarLoopForPetriNet]: 125 programPoint places, 17 predicate places. [2024-11-13 13:50:01,935 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 154 transitions, 568 flow [2024-11-13 13:50:01,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.16666666666667) internal successors, (607), 6 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:01,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:01,936 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:50:01,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:50:01,936 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-13 13:50:01,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:01,937 INFO L85 PathProgramCache]: Analyzing trace with hash 568188915, now seen corresponding path program 1 times [2024-11-13 13:50:01,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:01,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124697779] [2024-11-13 13:50:01,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:01,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:50:01,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:50:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:50:02,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:50:02,050 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:50:02,051 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-13 13:50:02,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-13 13:50:02,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-13 13:50:02,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-13 13:50:02,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-13 13:50:02,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-13 13:50:02,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-13 13:50:02,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-13 13:50:02,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-13 13:50:02,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-13 13:50:02,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-13 13:50:02,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-13 13:50:02,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-13 13:50:02,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-13 13:50:02,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-13 13:50:02,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:50:02,055 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:50:02,058 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 13:50:02,058 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 13:50:02,095 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 13:50:02,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 166 transitions, 348 flow [2024-11-13 13:50:02,154 INFO L124 PetriNetUnfolderBase]: 11/272 cut-off events. [2024-11-13 13:50:02,155 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-11-13 13:50:02,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 272 events. 11/272 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 609 event pairs, 0 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 163. Up to 8 conditions per place. [2024-11-13 13:50:02,156 INFO L82 GeneralOperation]: Start removeDead. Operand has 166 places, 166 transitions, 348 flow [2024-11-13 13:50:02,159 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 166 transitions, 348 flow [2024-11-13 13:50:02,160 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:50:02,161 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;@665d14f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:50:02,161 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-13 13:50:02,166 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:50:02,166 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-11-13 13:50:02,166 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:50:02,166 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:02,166 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] [2024-11-13 13:50:02,166 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 13:50:02,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:02,167 INFO L85 PathProgramCache]: Analyzing trace with hash -566133433, now seen corresponding path program 1 times [2024-11-13 13:50:02,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:02,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964939650] [2024-11-13 13:50:02,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:02,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:02,216 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 13:50:02,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:02,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964939650] [2024-11-13 13:50:02,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964939650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:02,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:02,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:50:02,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744937252] [2024-11-13 13:50:02,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:02,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:50:02,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:02,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:50:02,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:50:02,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 166 [2024-11-13 13:50:02,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 166 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:02,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:02,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 166 [2024-11-13 13:50:02,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:02,422 INFO L124 PetriNetUnfolderBase]: 81/1025 cut-off events. [2024-11-13 13:50:02,422 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-13 13:50:02,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 1025 events. 81/1025 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6451 event pairs, 78 based on Foata normal form. 40/930 useless extension candidates. Maximal degree in co-relation 874. Up to 162 conditions per place. [2024-11-13 13:50:02,431 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 15 selfloop transitions, 2 changer transitions 1/162 dead transitions. [2024-11-13 13:50:02,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 162 transitions, 374 flow [2024-11-13 13:50:02,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:50:02,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:50:02,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2024-11-13 13:50:02,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9156626506024096 [2024-11-13 13:50:02,433 INFO L175 Difference]: Start difference. First operand has 166 places, 166 transitions, 348 flow. Second operand 3 states and 456 transitions. [2024-11-13 13:50:02,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 162 transitions, 374 flow [2024-11-13 13:50:02,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 162 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:50:02,436 INFO L231 Difference]: Finished difference. Result has 167 places, 161 transitions, 342 flow [2024-11-13 13:50:02,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=167, PETRI_TRANSITIONS=161} [2024-11-13 13:50:02,437 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, 1 predicate places. [2024-11-13 13:50:02,437 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 161 transitions, 342 flow [2024-11-13 13:50:02,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:02,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:02,437 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] [2024-11-13 13:50:02,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:50:02,438 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 13:50:02,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:02,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1962895758, now seen corresponding path program 1 times [2024-11-13 13:50:02,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:02,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480939568] [2024-11-13 13:50:02,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:02,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:02,470 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 13:50:02,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:02,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480939568] [2024-11-13 13:50:02,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480939568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:02,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:02,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:50:02,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760539633] [2024-11-13 13:50:02,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:02,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:50:02,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:02,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:50:02,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:50:02,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 166 [2024-11-13 13:50:02,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 161 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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 13:50:02,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:02,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 166 [2024-11-13 13:50:02,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:02,681 INFO L124 PetriNetUnfolderBase]: 132/1094 cut-off events. [2024-11-13 13:50:02,681 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-13 13:50:02,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1377 conditions, 1094 events. 132/1094 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6884 event pairs, 41 based on Foata normal form. 0/1007 useless extension candidates. Maximal degree in co-relation 1333. Up to 227 conditions per place. [2024-11-13 13:50:02,688 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 20 selfloop transitions, 3 changer transitions 0/166 dead transitions. [2024-11-13 13:50:02,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 166 transitions, 403 flow [2024-11-13 13:50:02,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:50:02,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:50:02,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 461 transitions. [2024-11-13 13:50:02,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9257028112449799 [2024-11-13 13:50:02,690 INFO L175 Difference]: Start difference. First operand has 167 places, 161 transitions, 342 flow. Second operand 3 states and 461 transitions. [2024-11-13 13:50:02,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 166 transitions, 403 flow [2024-11-13 13:50:02,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 166 transitions, 399 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:50:02,693 INFO L231 Difference]: Finished difference. Result has 164 places, 161 transitions, 353 flow [2024-11-13 13:50:02,693 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=353, PETRI_PLACES=164, PETRI_TRANSITIONS=161} [2024-11-13 13:50:02,694 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, -2 predicate places. [2024-11-13 13:50:02,694 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 161 transitions, 353 flow [2024-11-13 13:50:02,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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 13:50:02,694 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:02,694 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] [2024-11-13 13:50:02,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:50:02,695 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 13:50:02,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:02,695 INFO L85 PathProgramCache]: Analyzing trace with hash 785142088, now seen corresponding path program 1 times [2024-11-13 13:50:02,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:02,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436095247] [2024-11-13 13:50:02,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:02,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:03,076 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 13:50:03,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:03,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436095247] [2024-11-13 13:50:03,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436095247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:03,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:03,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:50:03,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367002553] [2024-11-13 13:50:03,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:03,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:50:03,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:03,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:50:03,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:50:03,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 166 [2024-11-13 13:50:03,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 161 transitions, 353 flow. Second operand has 6 states, 6 states have (on average 130.5) internal successors, (783), 6 states have internal predecessors, (783), 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 13:50:03,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:03,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 166 [2024-11-13 13:50:03,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:04,405 INFO L124 PetriNetUnfolderBase]: 1884/5492 cut-off events. [2024-11-13 13:50:04,406 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES. [2024-11-13 13:50:04,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8834 conditions, 5492 events. 1884/5492 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 49034 event pairs, 751 based on Foata normal form. 0/5013 useless extension candidates. Maximal degree in co-relation 5636. Up to 2663 conditions per place. [2024-11-13 13:50:04,441 INFO L140 encePairwiseOnDemand]: 151/166 looper letters, 50 selfloop transitions, 38 changer transitions 0/215 dead transitions. [2024-11-13 13:50:04,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 215 transitions, 642 flow [2024-11-13 13:50:04,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:50:04,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:50:04,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 863 transitions. [2024-11-13 13:50:04,443 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8664658634538153 [2024-11-13 13:50:04,444 INFO L175 Difference]: Start difference. First operand has 164 places, 161 transitions, 353 flow. Second operand 6 states and 863 transitions. [2024-11-13 13:50:04,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 215 transitions, 642 flow [2024-11-13 13:50:04,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 215 transitions, 642 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:50:04,452 INFO L231 Difference]: Finished difference. Result has 174 places, 198 transitions, 607 flow [2024-11-13 13:50:04,453 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=607, PETRI_PLACES=174, PETRI_TRANSITIONS=198} [2024-11-13 13:50:04,453 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, 8 predicate places. [2024-11-13 13:50:04,453 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 198 transitions, 607 flow [2024-11-13 13:50:04,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.5) internal successors, (783), 6 states have internal predecessors, (783), 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 13:50:04,454 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:04,454 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] [2024-11-13 13:50:04,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:50:04,454 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 13:50:04,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:04,456 INFO L85 PathProgramCache]: Analyzing trace with hash -801917571, now seen corresponding path program 1 times [2024-11-13 13:50:04,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:04,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843550133] [2024-11-13 13:50:04,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:04,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:04,557 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 13:50:04,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:04,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843550133] [2024-11-13 13:50:04,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843550133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:04,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:04,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:50:04,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877327204] [2024-11-13 13:50:04,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:04,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:50:04,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:04,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:50:04,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:50:04,642 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 166 [2024-11-13 13:50:04,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 198 transitions, 607 flow. Second operand has 5 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 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 13:50:04,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:04,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 166 [2024-11-13 13:50:04,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:05,423 INFO L124 PetriNetUnfolderBase]: 798/3963 cut-off events. [2024-11-13 13:50:05,424 INFO L125 PetriNetUnfolderBase]: For 410/621 co-relation queries the response was YES. [2024-11-13 13:50:05,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6405 conditions, 3963 events. 798/3963 cut-off events. For 410/621 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 35473 event pairs, 305 based on Foata normal form. 2/3598 useless extension candidates. Maximal degree in co-relation 3889. Up to 1048 conditions per place. [2024-11-13 13:50:05,461 INFO L140 encePairwiseOnDemand]: 158/166 looper letters, 20 selfloop transitions, 2 changer transitions 5/206 dead transitions. [2024-11-13 13:50:05,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 206 transitions, 677 flow [2024-11-13 13:50:05,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:50:05,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:50:05,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 892 transitions. [2024-11-13 13:50:05,465 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8955823293172691 [2024-11-13 13:50:05,465 INFO L175 Difference]: Start difference. First operand has 174 places, 198 transitions, 607 flow. Second operand 6 states and 892 transitions. [2024-11-13 13:50:05,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 206 transitions, 677 flow [2024-11-13 13:50:05,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 206 transitions, 677 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:50:05,477 INFO L231 Difference]: Finished difference. Result has 183 places, 199 transitions, 629 flow [2024-11-13 13:50:05,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=629, PETRI_PLACES=183, PETRI_TRANSITIONS=199} [2024-11-13 13:50:05,479 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, 17 predicate places. [2024-11-13 13:50:05,479 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 199 transitions, 629 flow [2024-11-13 13:50:05,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 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 13:50:05,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:05,480 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] [2024-11-13 13:50:05,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:50:05,480 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 13:50:05,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:05,481 INFO L85 PathProgramCache]: Analyzing trace with hash -688501851, now seen corresponding path program 1 times [2024-11-13 13:50:05,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:05,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807940404] [2024-11-13 13:50:05,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:05,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:05,536 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 13:50:05,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:05,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807940404] [2024-11-13 13:50:05,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807940404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:05,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:05,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:50:05,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640275794] [2024-11-13 13:50:05,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:05,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:50:05,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:05,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:50:05,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:50:05,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 166 [2024-11-13 13:50:05,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 199 transitions, 629 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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 13:50:05,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:05,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 166 [2024-11-13 13:50:05,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:06,243 INFO L124 PetriNetUnfolderBase]: 926/3999 cut-off events. [2024-11-13 13:50:06,243 INFO L125 PetriNetUnfolderBase]: For 687/816 co-relation queries the response was YES. [2024-11-13 13:50:06,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7185 conditions, 3999 events. 926/3999 cut-off events. For 687/816 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 36546 event pairs, 166 based on Foata normal form. 1/3737 useless extension candidates. Maximal degree in co-relation 7083. Up to 1089 conditions per place. [2024-11-13 13:50:06,278 INFO L140 encePairwiseOnDemand]: 152/166 looper letters, 29 selfloop transitions, 10 changer transitions 0/216 dead transitions. [2024-11-13 13:50:06,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 216 transitions, 752 flow [2024-11-13 13:50:06,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:50:06,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:50:06,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2024-11-13 13:50:06,280 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9357429718875502 [2024-11-13 13:50:06,280 INFO L175 Difference]: Start difference. First operand has 183 places, 199 transitions, 629 flow. Second operand 3 states and 466 transitions. [2024-11-13 13:50:06,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 216 transitions, 752 flow [2024-11-13 13:50:06,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 216 transitions, 740 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-13 13:50:06,298 INFO L231 Difference]: Finished difference. Result has 180 places, 209 transitions, 705 flow [2024-11-13 13:50:06,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=705, PETRI_PLACES=180, PETRI_TRANSITIONS=209} [2024-11-13 13:50:06,300 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, 14 predicate places. [2024-11-13 13:50:06,300 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 209 transitions, 705 flow [2024-11-13 13:50:06,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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 13:50:06,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:06,301 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:50:06,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 13:50:06,301 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 13:50:06,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:06,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2008922250, now seen corresponding path program 1 times [2024-11-13 13:50:06,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:06,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287747446] [2024-11-13 13:50:06,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:06,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:06,357 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 13:50:06,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:06,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287747446] [2024-11-13 13:50:06,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287747446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:06,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:06,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:50:06,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216332949] [2024-11-13 13:50:06,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:06,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:50:06,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:06,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:50:06,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:50:06,394 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 166 [2024-11-13 13:50:06,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 209 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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 13:50:06,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:06,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 166 [2024-11-13 13:50:06,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:07,168 INFO L124 PetriNetUnfolderBase]: 1040/4592 cut-off events. [2024-11-13 13:50:07,168 INFO L125 PetriNetUnfolderBase]: For 963/1121 co-relation queries the response was YES. [2024-11-13 13:50:07,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8343 conditions, 4592 events. 1040/4592 cut-off events. For 963/1121 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 43626 event pairs, 179 based on Foata normal form. 9/4290 useless extension candidates. Maximal degree in co-relation 4714. Up to 1230 conditions per place. [2024-11-13 13:50:07,203 INFO L140 encePairwiseOnDemand]: 159/166 looper letters, 26 selfloop transitions, 9 changer transitions 0/220 dead transitions. [2024-11-13 13:50:07,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 220 transitions, 821 flow [2024-11-13 13:50:07,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:50:07,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:50:07,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 463 transitions. [2024-11-13 13:50:07,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.929718875502008 [2024-11-13 13:50:07,205 INFO L175 Difference]: Start difference. First operand has 180 places, 209 transitions, 705 flow. Second operand 3 states and 463 transitions. [2024-11-13 13:50:07,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 220 transitions, 821 flow [2024-11-13 13:50:07,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 220 transitions, 795 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:50:07,219 INFO L231 Difference]: Finished difference. Result has 182 places, 216 transitions, 761 flow [2024-11-13 13:50:07,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=685, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=761, PETRI_PLACES=182, PETRI_TRANSITIONS=216} [2024-11-13 13:50:07,221 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, 16 predicate places. [2024-11-13 13:50:07,221 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 216 transitions, 761 flow [2024-11-13 13:50:07,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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 13:50:07,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:07,222 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 13:50:07,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 13:50:07,222 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 13:50:07,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:07,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2418437, now seen corresponding path program 1 times [2024-11-13 13:50:07,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:07,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538411752] [2024-11-13 13:50:07,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:07,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:07,590 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 13:50:07,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:07,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538411752] [2024-11-13 13:50:07,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538411752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:07,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:07,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:50:07,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858602033] [2024-11-13 13:50:07,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:07,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:50:07,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:07,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:50:07,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:50:07,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 166 [2024-11-13 13:50:07,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 216 transitions, 761 flow. Second operand has 6 states, 6 states have (on average 133.16666666666666) internal successors, (799), 6 states have internal predecessors, (799), 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 13:50:07,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:07,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 166 [2024-11-13 13:50:07,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:09,842 INFO L124 PetriNetUnfolderBase]: 3464/12430 cut-off events. [2024-11-13 13:50:09,842 INFO L125 PetriNetUnfolderBase]: For 3157/3414 co-relation queries the response was YES. [2024-11-13 13:50:09,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25451 conditions, 12430 events. 3464/12430 cut-off events. For 3157/3414 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 139638 event pairs, 1210 based on Foata normal form. 8/11548 useless extension candidates. Maximal degree in co-relation 23312. Up to 4790 conditions per place. [2024-11-13 13:50:09,917 INFO L140 encePairwiseOnDemand]: 151/166 looper letters, 84 selfloop transitions, 38 changer transitions 0/271 dead transitions. [2024-11-13 13:50:09,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 271 transitions, 1185 flow [2024-11-13 13:50:09,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:50:09,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:50:09,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 874 transitions. [2024-11-13 13:50:09,919 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8775100401606426 [2024-11-13 13:50:09,920 INFO L175 Difference]: Start difference. First operand has 182 places, 216 transitions, 761 flow. Second operand 6 states and 874 transitions. [2024-11-13 13:50:09,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 271 transitions, 1185 flow [2024-11-13 13:50:09,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 271 transitions, 1167 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:50:09,943 INFO L231 Difference]: Finished difference. Result has 190 places, 253 transitions, 1061 flow [2024-11-13 13:50:09,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1061, PETRI_PLACES=190, PETRI_TRANSITIONS=253} [2024-11-13 13:50:09,944 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, 24 predicate places. [2024-11-13 13:50:09,944 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 253 transitions, 1061 flow [2024-11-13 13:50:09,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.16666666666666) internal successors, (799), 6 states have internal predecessors, (799), 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 13:50:09,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:09,944 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:50:09,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:50:09,945 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 13:50:09,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:09,945 INFO L85 PathProgramCache]: Analyzing trace with hash 851641931, now seen corresponding path program 1 times [2024-11-13 13:50:09,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:09,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075313596] [2024-11-13 13:50:09,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:09,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:10,350 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 13:50:10,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:10,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075313596] [2024-11-13 13:50:10,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075313596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:10,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:10,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:50:10,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527094203] [2024-11-13 13:50:10,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:10,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:50:10,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:10,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:50:10,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:50:10,499 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 166 [2024-11-13 13:50:10,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 253 transitions, 1061 flow. Second operand has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 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 13:50:10,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:10,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 166 [2024-11-13 13:50:10,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:13,275 INFO L124 PetriNetUnfolderBase]: 6379/20138 cut-off events. [2024-11-13 13:50:13,275 INFO L125 PetriNetUnfolderBase]: For 9947/10206 co-relation queries the response was YES. [2024-11-13 13:50:13,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48989 conditions, 20138 events. 6379/20138 cut-off events. For 9947/10206 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 226135 event pairs, 1631 based on Foata normal form. 12/18746 useless extension candidates. Maximal degree in co-relation 43057. Up to 8155 conditions per place. [2024-11-13 13:50:13,395 INFO L140 encePairwiseOnDemand]: 147/166 looper letters, 139 selfloop transitions, 118 changer transitions 0/408 dead transitions. [2024-11-13 13:50:13,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 408 transitions, 2449 flow [2024-11-13 13:50:13,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:50:13,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:50:13,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 900 transitions. [2024-11-13 13:50:13,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9036144578313253 [2024-11-13 13:50:13,397 INFO L175 Difference]: Start difference. First operand has 190 places, 253 transitions, 1061 flow. Second operand 6 states and 900 transitions. [2024-11-13 13:50:13,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 408 transitions, 2449 flow [2024-11-13 13:50:13,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 408 transitions, 2317 flow, removed 66 selfloop flow, removed 0 redundant places. [2024-11-13 13:50:13,479 INFO L231 Difference]: Finished difference. Result has 199 places, 365 transitions, 2127 flow [2024-11-13 13:50:13,480 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=997, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2127, PETRI_PLACES=199, PETRI_TRANSITIONS=365} [2024-11-13 13:50:13,480 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, 33 predicate places. [2024-11-13 13:50:13,480 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 365 transitions, 2127 flow [2024-11-13 13:50:13,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 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 13:50:13,481 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:13,481 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:50:13,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 13:50:13,481 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 13:50:13,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:13,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1557651843, now seen corresponding path program 1 times [2024-11-13 13:50:13,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:13,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255441527] [2024-11-13 13:50:13,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:13,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:13,531 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 13:50:13,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:13,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255441527] [2024-11-13 13:50:13,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255441527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:13,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:13,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:50:13,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268105908] [2024-11-13 13:50:13,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:13,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:50:13,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:13,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:50:13,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:50:13,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 166 [2024-11-13 13:50:13,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 365 transitions, 2127 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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 13:50:13,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:13,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 166 [2024-11-13 13:50:13,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:15,544 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([375] L1064-1-->L1064-2: Formula: (= (store |v_#race_12| |v_ULTIMATE.start_main_~tids~0#1.base_11| (store (select |v_#race_12| |v_ULTIMATE.start_main_~tids~0#1.base_11|) (+ (* |v_ULTIMATE.start_main_~i~1#1_6| 4) |v_ULTIMATE.start_main_~tids~0#1.offset_11|) 0)) |v_#race_11|) InVars {#race=|v_#race_12|, ULTIMATE.start_main_~tids~0#1.offset=|v_ULTIMATE.start_main_~tids~0#1.offset_11|, ULTIMATE.start_main_~i~1#1=|v_ULTIMATE.start_main_~i~1#1_6|, ULTIMATE.start_main_~tids~0#1.base=|v_ULTIMATE.start_main_~tids~0#1.base_11|} OutVars{#race=|v_#race_11|, ULTIMATE.start_main_~tids~0#1.offset=|v_ULTIMATE.start_main_~tids~0#1.offset_11|, ULTIMATE.start_main_~i~1#1=|v_ULTIMATE.start_main_~i~1#1_6|, ULTIMATE.start_main_~tids~0#1.base=|v_ULTIMATE.start_main_~tids~0#1.base_11|} AuxVars[] AssignedVars[#race][141], [Black: 189#(= |ULTIMATE.start_main_~i~0#1| 0), 229#true, Black: 200#(= |#race~next_j~0| 0), 210#(= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4))) 0), 166#true, 174#(= |#race~datas~0| 0), Black: 205#(= |threadThread1of2ForFork0_#t~nondet5| |#race~next_j~0|), Black: 211#(and (= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4))) 0) (= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4) 1)) 0)), Black: 208#true, 165#true, Black: 213#(and (= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4))) 0) (= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4) 3)) 0) (= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4) 2)) 0) (= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4) 1)) 0)), Black: 212#(and (= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4))) 0) (= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4) 2)) 0) (= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4) 1)) 0)), 121#L1064-2true, Black: 224#(and (= |threadThread1of2ForFork0_#t~nondet8| (select (select |#race| ~datas~0.base) (+ (* threadThread1of2ForFork0_~j~0 4) ~datas~0.offset))) (= |threadThread1of2ForFork0_#t~nondet8| (select (select |#race| ~datas~0.base) (+ 3 (* threadThread1of2ForFork0_~j~0 4) ~datas~0.offset))) (= |threadThread1of2ForFork0_#t~nondet8| (select (select |#race| ~datas~0.base) (+ 2 (* threadThread1of2ForFork0_~j~0 4) ~datas~0.offset))) (= |threadThread1of2ForFork0_#t~nondet8| (select (select |#race| ~datas~0.base) (+ (* threadThread1of2ForFork0_~j~0 4) ~datas~0.offset 1)))), Black: 221#(= |threadThread1of2ForFork0_#t~nondet8| (select (select |#race| ~datas~0.base) (+ (* threadThread1of2ForFork0_~j~0 4) ~datas~0.offset))), Black: 222#(and (= |threadThread1of2ForFork0_#t~nondet8| (select (select |#race| ~datas~0.base) (+ (* threadThread1of2ForFork0_~j~0 4) ~datas~0.offset))) (= |threadThread1of2ForFork0_#t~nondet8| (select (select |#race| ~datas~0.base) (+ (* threadThread1of2ForFork0_~j~0 4) ~datas~0.offset 1)))), Black: 223#(and (= |threadThread1of2ForFork0_#t~nondet8| (select (select |#race| ~datas~0.base) (+ (* threadThread1of2ForFork0_~j~0 4) ~datas~0.offset))) (= |threadThread1of2ForFork0_#t~nondet8| (select (select |#race| ~datas~0.base) (+ 2 (* threadThread1of2ForFork0_~j~0 4) ~datas~0.offset))) (= |threadThread1of2ForFork0_#t~nondet8| (select (select |#race| ~datas~0.base) (+ (* threadThread1of2ForFork0_~j~0 4) ~datas~0.offset 1)))), 219#true, Black: 172#true, 27#L1052-11true, Black: 179#(and (= |ULTIMATE.start_main_#t~nondet14#1| (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4)))) (= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4) 1)) |ULTIMATE.start_main_#t~nondet14#1|)), Black: 181#(and (= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| 3 (* |ULTIMATE.start_main_~i~0#1| 4))) |ULTIMATE.start_main_#t~nondet14#1|) (= |ULTIMATE.start_main_#t~nondet14#1| (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4)))) (= |ULTIMATE.start_main_#t~nondet14#1| (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| 2 (* |ULTIMATE.start_main_~i~0#1| 4)))) (= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4) 1)) |ULTIMATE.start_main_#t~nondet14#1|)), Black: 180#(and (= |ULTIMATE.start_main_#t~nondet14#1| (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4)))) (= |ULTIMATE.start_main_#t~nondet14#1| (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| 2 (* |ULTIMATE.start_main_~i~0#1| 4)))) (= (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4) 1)) |ULTIMATE.start_main_#t~nondet14#1|)), Black: 178#(= |ULTIMATE.start_main_#t~nondet14#1| (select (select |#race| |ULTIMATE.start_main_~tids~0#1.base|) (+ |ULTIMATE.start_main_~tids~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4)))), 176#true]) [2024-11-13 13:50:15,545 INFO L294 olderBase$Statistics]: this new event has 151 ancestors and is cut-off event [2024-11-13 13:50:15,545 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2024-11-13 13:50:15,545 INFO L297 olderBase$Statistics]: existing Event has 89 ancestors and is cut-off event [2024-11-13 13:50:15,545 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2024-11-13 13:50:15,746 INFO L124 PetriNetUnfolderBase]: 4448/15316 cut-off events. [2024-11-13 13:50:15,746 INFO L125 PetriNetUnfolderBase]: For 11757/13488 co-relation queries the response was YES. [2024-11-13 13:50:15,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42206 conditions, 15316 events. 4448/15316 cut-off events. For 11757/13488 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 172410 event pairs, 348 based on Foata normal form. 12/14648 useless extension candidates. Maximal degree in co-relation 38086. Up to 3720 conditions per place. [2024-11-13 13:50:15,832 INFO L140 encePairwiseOnDemand]: 159/166 looper letters, 28 selfloop transitions, 11 changer transitions 0/375 dead transitions. [2024-11-13 13:50:15,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 375 transitions, 2242 flow [2024-11-13 13:50:15,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:50:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:50:15,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 462 transitions. [2024-11-13 13:50:15,834 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.927710843373494 [2024-11-13 13:50:15,834 INFO L175 Difference]: Start difference. First operand has 199 places, 365 transitions, 2127 flow. Second operand 3 states and 462 transitions. [2024-11-13 13:50:15,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 375 transitions, 2242 flow [2024-11-13 13:50:16,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 375 transitions, 2206 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-13 13:50:16,085 INFO L231 Difference]: Finished difference. Result has 203 places, 372 transitions, 2179 flow [2024-11-13 13:50:16,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=2091, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2179, PETRI_PLACES=203, PETRI_TRANSITIONS=372} [2024-11-13 13:50:16,086 INFO L277 CegarLoopForPetriNet]: 166 programPoint places, 37 predicate places. [2024-11-13 13:50:16,086 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 372 transitions, 2179 flow [2024-11-13 13:50:16,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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 13:50:16,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:16,086 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:50:16,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 13:50:16,086 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 13:50:16,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:16,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1838179584, now seen corresponding path program 1 times [2024-11-13 13:50:16,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:16,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193185585] [2024-11-13 13:50:16,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:16,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:50:16,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:50:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:50:16,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:50:16,155 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:50:16,155 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-13 13:50:16,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-13 13:50:16,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-13 13:50:16,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-13 13:50:16,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-13 13:50:16,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-13 13:50:16,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-13 13:50:16,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-13 13:50:16,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-13 13:50:16,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-13 13:50:16,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-13 13:50:16,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-13 13:50:16,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-13 13:50:16,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-13 13:50:16,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-13 13:50:16,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-13 13:50:16,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-13 13:50:16,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-13 13:50:16,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-13 13:50:16,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-13 13:50:16,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 13:50:16,158 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:50:16,158 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 13:50:16,158 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-13 13:50:16,216 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 13:50:16,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 206 transitions, 439 flow [2024-11-13 13:50:16,297 INFO L124 PetriNetUnfolderBase]: 21/436 cut-off events. [2024-11-13 13:50:16,297 INFO L125 PetriNetUnfolderBase]: For 19/22 co-relation queries the response was YES. [2024-11-13 13:50:16,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 436 events. 21/436 cut-off events. For 19/22 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1289 event pairs, 1 based on Foata normal form. 0/374 useless extension candidates. Maximal degree in co-relation 280. Up to 16 conditions per place. [2024-11-13 13:50:16,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 206 transitions, 439 flow [2024-11-13 13:50:16,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 206 transitions, 439 flow [2024-11-13 13:50:16,306 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:50:16,306 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;@665d14f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:50:16,307 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-13 13:50:16,310 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:50:16,310 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-11-13 13:50:16,310 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:50:16,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:16,310 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] [2024-11-13 13:50:16,311 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:50:16,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:16,311 INFO L85 PathProgramCache]: Analyzing trace with hash 401584903, now seen corresponding path program 1 times [2024-11-13 13:50:16,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:16,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498226480] [2024-11-13 13:50:16,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:16,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:16,341 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 13:50:16,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:16,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498226480] [2024-11-13 13:50:16,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498226480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:16,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:16,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:50:16,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962958607] [2024-11-13 13:50:16,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:16,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:50:16,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:16,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:50:16,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:50:16,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 206 [2024-11-13 13:50:16,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 206 transitions, 439 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 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 13:50:16,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:16,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 206 [2024-11-13 13:50:16,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:17,215 INFO L124 PetriNetUnfolderBase]: 656/5102 cut-off events. [2024-11-13 13:50:17,216 INFO L125 PetriNetUnfolderBase]: For 337/337 co-relation queries the response was YES. [2024-11-13 13:50:17,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6313 conditions, 5102 events. 656/5102 cut-off events. For 337/337 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 51166 event pairs, 643 based on Foata normal form. 191/4630 useless extension candidates. Maximal degree in co-relation 4712. Up to 1052 conditions per place. [2024-11-13 13:50:17,261 INFO L140 encePairwiseOnDemand]: 200/206 looper letters, 20 selfloop transitions, 2 changer transitions 1/202 dead transitions. [2024-11-13 13:50:17,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 202 transitions, 475 flow [2024-11-13 13:50:17,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:50:17,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:50:17,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 566 transitions. [2024-11-13 13:50:17,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9158576051779935 [2024-11-13 13:50:17,264 INFO L175 Difference]: Start difference. First operand has 207 places, 206 transitions, 439 flow. Second operand 3 states and 566 transitions. [2024-11-13 13:50:17,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 202 transitions, 475 flow [2024-11-13 13:50:17,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 202 transitions, 475 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:50:17,269 INFO L231 Difference]: Finished difference. Result has 208 places, 201 transitions, 433 flow [2024-11-13 13:50:17,269 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=433, PETRI_PLACES=208, PETRI_TRANSITIONS=201} [2024-11-13 13:50:17,269 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 1 predicate places. [2024-11-13 13:50:17,270 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 201 transitions, 433 flow [2024-11-13 13:50:17,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 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 13:50:17,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:17,270 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] [2024-11-13 13:50:17,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 13:50:17,270 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:50:17,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:17,271 INFO L85 PathProgramCache]: Analyzing trace with hash -353288000, now seen corresponding path program 1 times [2024-11-13 13:50:17,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:17,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555606134] [2024-11-13 13:50:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:17,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:17,396 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 13:50:17,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:17,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555606134] [2024-11-13 13:50:17,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555606134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:17,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:17,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:50:17,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041091371] [2024-11-13 13:50:17,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:17,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:50:17,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:17,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:50:17,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:50:17,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 206 [2024-11-13 13:50:17,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 201 transitions, 433 flow. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 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 13:50:17,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:17,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 206 [2024-11-13 13:50:17,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:18,250 INFO L124 PetriNetUnfolderBase]: 1275/6752 cut-off events. [2024-11-13 13:50:18,250 INFO L125 PetriNetUnfolderBase]: For 527/527 co-relation queries the response was YES. [2024-11-13 13:50:18,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8950 conditions, 6752 events. 1275/6752 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 69354 event pairs, 437 based on Foata normal form. 0/6235 useless extension candidates. Maximal degree in co-relation 8905. Up to 1872 conditions per place. [2024-11-13 13:50:18,284 INFO L140 encePairwiseOnDemand]: 198/206 looper letters, 29 selfloop transitions, 4 changer transitions 0/209 dead transitions. [2024-11-13 13:50:18,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 209 transitions, 527 flow [2024-11-13 13:50:18,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:50:18,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:50:18,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 571 transitions. [2024-11-13 13:50:18,286 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9239482200647249 [2024-11-13 13:50:18,286 INFO L175 Difference]: Start difference. First operand has 208 places, 201 transitions, 433 flow. Second operand 3 states and 571 transitions. [2024-11-13 13:50:18,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 209 transitions, 527 flow [2024-11-13 13:50:18,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 209 transitions, 523 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:50:18,290 INFO L231 Difference]: Finished difference. Result has 204 places, 201 transitions, 449 flow [2024-11-13 13:50:18,290 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=449, PETRI_PLACES=204, PETRI_TRANSITIONS=201} [2024-11-13 13:50:18,290 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -3 predicate places. [2024-11-13 13:50:18,290 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 201 transitions, 449 flow [2024-11-13 13:50:18,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 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 13:50:18,291 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:18,291 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] [2024-11-13 13:50:18,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 13:50:18,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:50:18,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:18,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1429977558, now seen corresponding path program 1 times [2024-11-13 13:50:18,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:18,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298331496] [2024-11-13 13:50:18,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:18,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:18,571 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 13:50:18,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:18,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298331496] [2024-11-13 13:50:18,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298331496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:18,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:18,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:50:18,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245002074] [2024-11-13 13:50:18,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:18,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:50:18,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:18,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:50:18,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:50:18,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 206 [2024-11-13 13:50:18,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 201 transitions, 449 flow. Second operand has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 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 13:50:18,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:18,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 206 [2024-11-13 13:50:18,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:25,996 INFO L124 PetriNetUnfolderBase]: 24471/54469 cut-off events. [2024-11-13 13:50:25,996 INFO L125 PetriNetUnfolderBase]: For 2353/2353 co-relation queries the response was YES. [2024-11-13 13:50:26,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91231 conditions, 54469 events. 24471/54469 cut-off events. For 2353/2353 co-relation queries the response was YES. Maximal size of possible extension queue 2011. Compared 617133 event pairs, 10614 based on Foata normal form. 0/50470 useless extension candidates. Maximal degree in co-relation 55092. Up to 30778 conditions per place. [2024-11-13 13:50:26,241 INFO L140 encePairwiseOnDemand]: 187/206 looper letters, 67 selfloop transitions, 54 changer transitions 0/280 dead transitions. [2024-11-13 13:50:26,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 280 transitions, 861 flow [2024-11-13 13:50:26,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:50:26,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:50:26,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1088 transitions. [2024-11-13 13:50:26,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8802588996763754 [2024-11-13 13:50:26,244 INFO L175 Difference]: Start difference. First operand has 204 places, 201 transitions, 449 flow. Second operand 6 states and 1088 transitions. [2024-11-13 13:50:26,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 280 transitions, 861 flow [2024-11-13 13:50:26,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 280 transitions, 861 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:50:26,251 INFO L231 Difference]: Finished difference. Result has 214 places, 254 transitions, 807 flow [2024-11-13 13:50:26,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=807, PETRI_PLACES=214, PETRI_TRANSITIONS=254} [2024-11-13 13:50:26,251 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 7 predicate places. [2024-11-13 13:50:26,252 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 254 transitions, 807 flow [2024-11-13 13:50:26,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 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 13:50:26,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:26,252 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] [2024-11-13 13:50:26,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 13:50:26,253 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:50:26,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:26,253 INFO L85 PathProgramCache]: Analyzing trace with hash -157082101, now seen corresponding path program 1 times [2024-11-13 13:50:26,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:26,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87079930] [2024-11-13 13:50:26,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:26,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:26,318 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 13:50:26,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:26,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87079930] [2024-11-13 13:50:26,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87079930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:26,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:26,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:50:26,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112362825] [2024-11-13 13:50:26,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:26,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:50:26,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:26,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:50:26,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:50:26,409 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 206 [2024-11-13 13:50:26,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 254 transitions, 807 flow. Second operand has 5 states, 5 states have (on average 181.4) internal successors, (907), 5 states have internal predecessors, (907), 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 13:50:26,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:26,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 206 [2024-11-13 13:50:26,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:30,836 INFO L124 PetriNetUnfolderBase]: 9849/34552 cut-off events. [2024-11-13 13:50:30,836 INFO L125 PetriNetUnfolderBase]: For 4977/6883 co-relation queries the response was YES. [2024-11-13 13:50:30,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58096 conditions, 34552 events. 9849/34552 cut-off events. For 4977/6883 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 425000 event pairs, 5175 based on Foata normal form. 2/31383 useless extension candidates. Maximal degree in co-relation 36493. Up to 12737 conditions per place. [2024-11-13 13:50:31,009 INFO L140 encePairwiseOnDemand]: 198/206 looper letters, 24 selfloop transitions, 2 changer transitions 5/262 dead transitions. [2024-11-13 13:50:31,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 262 transitions, 885 flow [2024-11-13 13:50:31,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:50:31,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:50:31,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1112 transitions. [2024-11-13 13:50:31,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8996763754045307 [2024-11-13 13:50:31,012 INFO L175 Difference]: Start difference. First operand has 214 places, 254 transitions, 807 flow. Second operand 6 states and 1112 transitions. [2024-11-13 13:50:31,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 262 transitions, 885 flow [2024-11-13 13:50:31,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 262 transitions, 885 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:50:31,053 INFO L231 Difference]: Finished difference. Result has 223 places, 255 transitions, 829 flow [2024-11-13 13:50:31,053 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=829, PETRI_PLACES=223, PETRI_TRANSITIONS=255} [2024-11-13 13:50:31,054 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 16 predicate places. [2024-11-13 13:50:31,054 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 255 transitions, 829 flow [2024-11-13 13:50:31,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 181.4) internal successors, (907), 5 states have internal predecessors, (907), 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 13:50:31,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:31,054 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] [2024-11-13 13:50:31,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 13:50:31,055 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:50:31,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:31,055 INFO L85 PathProgramCache]: Analyzing trace with hash -612746485, now seen corresponding path program 1 times [2024-11-13 13:50:31,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:31,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779378120] [2024-11-13 13:50:31,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:31,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:31,088 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 13:50:31,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:31,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779378120] [2024-11-13 13:50:31,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779378120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:31,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:31,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:50:31,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579908728] [2024-11-13 13:50:31,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:31,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:50:31,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:31,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:50:31,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:50:31,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 206 [2024-11-13 13:50:31,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 255 transitions, 829 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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 13:50:31,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:31,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 206 [2024-11-13 13:50:31,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:50:39,732 INFO L124 PetriNetUnfolderBase]: 18886/63524 cut-off events. [2024-11-13 13:50:39,732 INFO L125 PetriNetUnfolderBase]: For 16328/23613 co-relation queries the response was YES. [2024-11-13 13:50:39,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116942 conditions, 63524 events. 18886/63524 cut-off events. For 16328/23613 co-relation queries the response was YES. Maximal size of possible extension queue 2279. Compared 896449 event pairs, 5674 based on Foata normal form. 12/57520 useless extension candidates. Maximal degree in co-relation 116839. Up to 20467 conditions per place. [2024-11-13 13:50:40,359 INFO L140 encePairwiseOnDemand]: 185/206 looper letters, 44 selfloop transitions, 15 changer transitions 0/281 dead transitions. [2024-11-13 13:50:40,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 281 transitions, 1020 flow [2024-11-13 13:50:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:50:40,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:50:40,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 575 transitions. [2024-11-13 13:50:40,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.93042071197411 [2024-11-13 13:50:40,360 INFO L175 Difference]: Start difference. First operand has 223 places, 255 transitions, 829 flow. Second operand 3 states and 575 transitions. [2024-11-13 13:50:40,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 281 transitions, 1020 flow [2024-11-13 13:50:40,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 281 transitions, 1008 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-13 13:50:40,947 INFO L231 Difference]: Finished difference. Result has 220 places, 270 transitions, 949 flow [2024-11-13 13:50:40,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=949, PETRI_PLACES=220, PETRI_TRANSITIONS=270} [2024-11-13 13:50:40,948 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 13 predicate places. [2024-11-13 13:50:40,948 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 270 transitions, 949 flow [2024-11-13 13:50:40,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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 13:50:40,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:50:40,948 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:50:40,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 13:50:40,948 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 13:50:40,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:40,949 INFO L85 PathProgramCache]: Analyzing trace with hash -451899664, now seen corresponding path program 1 times [2024-11-13 13:50:40,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:40,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60212392] [2024-11-13 13:50:40,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:40,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:40,990 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 13:50:40,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:40,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60212392] [2024-11-13 13:50:40,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60212392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:40,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:40,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:50:40,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150791141] [2024-11-13 13:50:40,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:40,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:50:40,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:40,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:50:40,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:50:41,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 206 [2024-11-13 13:50:41,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 270 transitions, 949 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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 13:50:41,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:50:41,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 206 [2024-11-13 13:50:41,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand