./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/value-barrier-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/value-barrier-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU --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 4e3d22e98e469d91cee59ee59a7893605d6313bab33afdf939e81a0c217e3b1b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:12:34,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:12:34,127 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:12:34,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:12:34,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:12:34,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:12:34,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:12:34,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:12:34,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:12:34,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:12:34,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:12:34,179 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:12:34,181 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:12:34,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:12:34,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:12:34,185 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:12:34,186 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:12:34,186 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:12:34,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:12:34,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:12:34,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:12:34,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:12:34,191 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:12:34,191 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:12:34,192 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:12:34,192 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:12:34,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:12:34,193 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:12:34,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:12:34,194 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:12:34,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:12:34,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:34,195 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:12:34,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:12:34,196 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:12:34,198 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:12:34,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:12:34,199 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:12:34,199 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:12:34,200 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:12:34,200 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:12:34,201 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e3d22e98e469d91cee59ee59a7893605d6313bab33afdf939e81a0c217e3b1b [2024-10-31 22:12:34,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:12:34,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:12:34,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:12:34,571 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:12:34,572 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:12:34,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-race-challenges/value-barrier-race.i Unable to find full path for "g++" [2024-10-31 22:12:36,810 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:37,089 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:37,090 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/sv-benchmarks/c/pthread-race-challenges/value-barrier-race.i [2024-10-31 22:12:37,108 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/data/80c03c220/7d248c01b251483b9070056ed163ece5/FLAGcb813806a [2024-10-31 22:12:37,396 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/data/80c03c220/7d248c01b251483b9070056ed163ece5 [2024-10-31 22:12:37,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:37,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:37,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:37,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:37,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:37,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:37" (1/1) ... [2024-10-31 22:12:37,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327298af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:37, skipping insertion in model container [2024-10-31 22:12:37,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:37" (1/1) ... [2024-10-31 22:12:37,487 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:38,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:38,130 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:38,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:38,267 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:38,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:38 WrapperNode [2024-10-31 22:12:38,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:38,269 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:38,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:38,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:38,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:38" (1/1) ... [2024-10-31 22:12:38,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:38" (1/1) ... [2024-10-31 22:12:38,332 INFO L138 Inliner]: procedures = 261, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2024-10-31 22:12:38,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:38,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:38,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:38,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:38,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:38" (1/1) ... [2024-10-31 22:12:38,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:38" (1/1) ... [2024-10-31 22:12:38,348 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:38" (1/1) ... [2024-10-31 22:12:38,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:38" (1/1) ... [2024-10-31 22:12:38,361 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:38" (1/1) ... [2024-10-31 22:12:38,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:38" (1/1) ... [2024-10-31 22:12:38,367 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:38" (1/1) ... [2024-10-31 22:12:38,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:38" (1/1) ... [2024-10-31 22:12:38,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:38,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:38,376 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:38,376 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:38,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:38" (1/1) ... [2024-10-31 22:12:38,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:38,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:38,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:38,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:38,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:12:38,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:12:38,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:12:38,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:12:38,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-31 22:12:38,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-31 22:12:38,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:38,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:38,491 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:12:38,652 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:38,654 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:38,941 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:12:38,943 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:38,960 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:38,960 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 22:12:38,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:38 BoogieIcfgContainer [2024-10-31 22:12:38,961 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:38,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:12:38,964 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:12:38,969 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:12:38,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:12:37" (1/3) ... [2024-10-31 22:12:38,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d2f7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:38, skipping insertion in model container [2024-10-31 22:12:38,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:38" (2/3) ... [2024-10-31 22:12:38,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d2f7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:38, skipping insertion in model container [2024-10-31 22:12:38,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:38" (3/3) ... [2024-10-31 22:12:38,974 INFO L112 eAbstractionObserver]: Analyzing ICFG value-barrier-race.i [2024-10-31 22:12:38,992 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:12:38,993 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-31 22:12:38,993 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:12:39,057 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:12:39,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 94 transitions, 195 flow [2024-10-31 22:12:39,165 INFO L124 PetriNetUnfolderBase]: 8/140 cut-off events. [2024-10-31 22:12:39,165 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:12:39,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 140 events. 8/140 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 225 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 68. Up to 4 conditions per place. [2024-10-31 22:12:39,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 94 transitions, 195 flow [2024-10-31 22:12:39,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 94 transitions, 195 flow [2024-10-31 22:12:39,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:39,190 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;@1a0f7373, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:39,190 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-31 22:12:39,201 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:12:39,201 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-10-31 22:12:39,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:39,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:39,202 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] [2024-10-31 22:12:39,202 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:12:39,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:39,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1537660805, now seen corresponding path program 1 times [2024-10-31 22:12:39,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:39,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889608015] [2024-10-31 22:12:39,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:39,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:39,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:39,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889608015] [2024-10-31 22:12:39,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889608015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:39,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:39,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:39,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846942599] [2024-10-31 22:12:39,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:39,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:39,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:39,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:39,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:39,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 94 [2024-10-31 22:12:39,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 94 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2024-10-31 22:12:39,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:39,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 94 [2024-10-31 22:12:39,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:39,631 INFO L124 PetriNetUnfolderBase]: 7/171 cut-off events. [2024-10-31 22:12:39,631 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-10-31 22:12:39,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 171 events. 7/171 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 427 event pairs, 3 based on Foata normal form. 11/160 useless extension candidates. Maximal degree in co-relation 119. Up to 21 conditions per place. [2024-10-31 22:12:39,635 INFO L140 encePairwiseOnDemand]: 85/94 looper letters, 9 selfloop transitions, 4 changer transitions 1/93 dead transitions. [2024-10-31 22:12:39,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 93 transitions, 219 flow [2024-10-31 22:12:39,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:39,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:39,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-10-31 22:12:39,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9184397163120568 [2024-10-31 22:12:39,661 INFO L175 Difference]: Start difference. First operand has 91 places, 94 transitions, 195 flow. Second operand 3 states and 259 transitions. [2024-10-31 22:12:39,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 93 transitions, 219 flow [2024-10-31 22:12:39,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 93 transitions, 219 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:39,675 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 215 flow [2024-10-31 22:12:39,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2024-10-31 22:12:39,684 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 4 predicate places. [2024-10-31 22:12:39,685 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 215 flow [2024-10-31 22:12:39,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2024-10-31 22:12:39,685 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:39,686 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] [2024-10-31 22:12:39,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:12:39,686 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:12:39,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:39,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1216131606, now seen corresponding path program 1 times [2024-10-31 22:12:39,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:39,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257360969] [2024-10-31 22:12:39,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:39,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:40,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:40,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257360969] [2024-10-31 22:12:40,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257360969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:40,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:40,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:12:40,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117217550] [2024-10-31 22:12:40,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:40,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:12:40,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:40,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:12:40,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:40,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2024-10-31 22:12:40,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 215 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-10-31 22:12:40,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:40,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2024-10-31 22:12:40,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:40,850 INFO L124 PetriNetUnfolderBase]: 5/154 cut-off events. [2024-10-31 22:12:40,851 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-31 22:12:40,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 154 events. 5/154 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 360 event pairs, 1 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 119. Up to 21 conditions per place. [2024-10-31 22:12:40,853 INFO L140 encePairwiseOnDemand]: 88/94 looper letters, 14 selfloop transitions, 5 changer transitions 0/91 dead transitions. [2024-10-31 22:12:40,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 91 transitions, 251 flow [2024-10-31 22:12:40,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:12:40,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:12:40,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 440 transitions. [2024-10-31 22:12:40,862 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7801418439716312 [2024-10-31 22:12:40,862 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 215 flow. Second operand 6 states and 440 transitions. [2024-10-31 22:12:40,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 91 transitions, 251 flow [2024-10-31 22:12:40,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 91 transitions, 243 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:40,869 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 215 flow [2024-10-31 22:12:40,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2024-10-31 22:12:40,870 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 5 predicate places. [2024-10-31 22:12:40,871 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 215 flow [2024-10-31 22:12:40,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-10-31 22:12:40,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:40,872 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] [2024-10-31 22:12:40,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:12:40,872 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:12:40,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:40,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2021984939, now seen corresponding path program 1 times [2024-10-31 22:12:40,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:40,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328517192] [2024-10-31 22:12:40,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:40,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:40,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:40,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328517192] [2024-10-31 22:12:40,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328517192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:40,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:40,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:40,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420675459] [2024-10-31 22:12:40,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:40,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:40,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:40,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:40,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:40,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 94 [2024-10-31 22:12:40,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2024-10-31 22:12:40,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:40,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 94 [2024-10-31 22:12:40,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:41,042 INFO L124 PetriNetUnfolderBase]: 8/228 cut-off events. [2024-10-31 22:12:41,043 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2024-10-31 22:12:41,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 228 events. 8/228 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 701 event pairs, 1 based on Foata normal form. 1/202 useless extension candidates. Maximal degree in co-relation 187. Up to 11 conditions per place. [2024-10-31 22:12:41,046 INFO L140 encePairwiseOnDemand]: 90/94 looper letters, 7 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2024-10-31 22:12:41,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 95 transitions, 246 flow [2024-10-31 22:12:41,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:41,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:41,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2024-10-31 22:12:41,052 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9326241134751773 [2024-10-31 22:12:41,053 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 215 flow. Second operand 3 states and 263 transitions. [2024-10-31 22:12:41,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 95 transitions, 246 flow [2024-10-31 22:12:41,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 95 transitions, 236 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:12:41,056 INFO L231 Difference]: Finished difference. Result has 95 places, 94 transitions, 231 flow [2024-10-31 22:12:41,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=95, PETRI_TRANSITIONS=94} [2024-10-31 22:12:41,060 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 4 predicate places. [2024-10-31 22:12:41,060 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 94 transitions, 231 flow [2024-10-31 22:12:41,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2024-10-31 22:12:41,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:41,061 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] [2024-10-31 22:12:41,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:12:41,062 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:12:41,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:41,062 INFO L85 PathProgramCache]: Analyzing trace with hash -212740164, now seen corresponding path program 1 times [2024-10-31 22:12:41,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:41,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847515693] [2024-10-31 22:12:41,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:41,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:41,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:41,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847515693] [2024-10-31 22:12:41,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847515693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:41,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:41,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:41,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561517508] [2024-10-31 22:12:41,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:41,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:41,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:41,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:41,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:41,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 94 [2024-10-31 22:12:41,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 94 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2024-10-31 22:12:41,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:41,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 94 [2024-10-31 22:12:41,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:41,199 INFO L124 PetriNetUnfolderBase]: 25/292 cut-off events. [2024-10-31 22:12:41,199 INFO L125 PetriNetUnfolderBase]: For 52/54 co-relation queries the response was YES. [2024-10-31 22:12:41,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 292 events. 25/292 cut-off events. For 52/54 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1104 event pairs, 3 based on Foata normal form. 1/257 useless extension candidates. Maximal degree in co-relation 309. Up to 44 conditions per place. [2024-10-31 22:12:41,203 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 10 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2024-10-31 22:12:41,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 98 transitions, 277 flow [2024-10-31 22:12:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:41,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:41,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2024-10-31 22:12:41,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.900709219858156 [2024-10-31 22:12:41,207 INFO L175 Difference]: Start difference. First operand has 95 places, 94 transitions, 231 flow. Second operand 3 states and 254 transitions. [2024-10-31 22:12:41,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 98 transitions, 277 flow [2024-10-31 22:12:41,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 98 transitions, 269 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:41,211 INFO L231 Difference]: Finished difference. Result has 97 places, 98 transitions, 271 flow [2024-10-31 22:12:41,212 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=97, PETRI_TRANSITIONS=98} [2024-10-31 22:12:41,212 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 6 predicate places. [2024-10-31 22:12:41,213 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 98 transitions, 271 flow [2024-10-31 22:12:41,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2024-10-31 22:12:41,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:41,213 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:41,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:12:41,214 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:12:41,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:41,215 INFO L85 PathProgramCache]: Analyzing trace with hash 37244536, now seen corresponding path program 1 times [2024-10-31 22:12:41,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:41,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699971476] [2024-10-31 22:12:41,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:41,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:41,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:41,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699971476] [2024-10-31 22:12:41,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699971476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:41,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:41,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:41,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919267860] [2024-10-31 22:12:41,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:41,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:41,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:41,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:41,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:41,294 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 94 [2024-10-31 22:12:41,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 98 transitions, 271 flow. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2024-10-31 22:12:41,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:41,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 94 [2024-10-31 22:12:41,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:41,353 INFO L124 PetriNetUnfolderBase]: 19/332 cut-off events. [2024-10-31 22:12:41,353 INFO L125 PetriNetUnfolderBase]: For 75/87 co-relation queries the response was YES. [2024-10-31 22:12:41,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 332 events. 19/332 cut-off events. For 75/87 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1383 event pairs, 0 based on Foata normal form. 3/305 useless extension candidates. Maximal degree in co-relation 345. Up to 26 conditions per place. [2024-10-31 22:12:41,357 INFO L140 encePairwiseOnDemand]: 90/94 looper letters, 6 selfloop transitions, 4 changer transitions 0/101 dead transitions. [2024-10-31 22:12:41,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 101 transitions, 302 flow [2024-10-31 22:12:41,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:41,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:41,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-10-31 22:12:41,358 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9290780141843972 [2024-10-31 22:12:41,359 INFO L175 Difference]: Start difference. First operand has 97 places, 98 transitions, 271 flow. Second operand 3 states and 262 transitions. [2024-10-31 22:12:41,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 101 transitions, 302 flow [2024-10-31 22:12:41,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 101 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:41,364 INFO L231 Difference]: Finished difference. Result has 99 places, 100 transitions, 287 flow [2024-10-31 22:12:41,364 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=287, PETRI_PLACES=99, PETRI_TRANSITIONS=100} [2024-10-31 22:12:41,366 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 8 predicate places. [2024-10-31 22:12:41,367 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 100 transitions, 287 flow [2024-10-31 22:12:41,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2024-10-31 22:12:41,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:41,367 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] [2024-10-31 22:12:41,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:12:41,368 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:12:41,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:41,368 INFO L85 PathProgramCache]: Analyzing trace with hash -438296460, now seen corresponding path program 1 times [2024-10-31 22:12:41,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:41,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122693073] [2024-10-31 22:12:41,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:41,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:41,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:41,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122693073] [2024-10-31 22:12:41,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122693073] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:41,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:41,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:12:41,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000865047] [2024-10-31 22:12:41,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:41,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:12:41,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:41,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:12:41,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:12:41,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 94 [2024-10-31 22:12:41,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 100 transitions, 287 flow. Second operand has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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) [2024-10-31 22:12:41,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:41,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 94 [2024-10-31 22:12:41,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:41,744 INFO L124 PetriNetUnfolderBase]: 19/338 cut-off events. [2024-10-31 22:12:41,744 INFO L125 PetriNetUnfolderBase]: For 70/80 co-relation queries the response was YES. [2024-10-31 22:12:41,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 338 events. 19/338 cut-off events. For 70/80 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1432 event pairs, 0 based on Foata normal form. 1/319 useless extension candidates. Maximal degree in co-relation 360. Up to 44 conditions per place. [2024-10-31 22:12:41,746 INFO L140 encePairwiseOnDemand]: 86/94 looper letters, 11 selfloop transitions, 2 changer transitions 5/105 dead transitions. [2024-10-31 22:12:41,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 105 transitions, 333 flow [2024-10-31 22:12:41,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:12:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:12:41,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 481 transitions. [2024-10-31 22:12:41,748 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8528368794326241 [2024-10-31 22:12:41,748 INFO L175 Difference]: Start difference. First operand has 99 places, 100 transitions, 287 flow. Second operand 6 states and 481 transitions. [2024-10-31 22:12:41,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 105 transitions, 333 flow [2024-10-31 22:12:41,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 105 transitions, 325 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:41,752 INFO L231 Difference]: Finished difference. Result has 106 places, 100 transitions, 297 flow [2024-10-31 22:12:41,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=297, PETRI_PLACES=106, PETRI_TRANSITIONS=100} [2024-10-31 22:12:41,753 INFO L277 CegarLoopForPetriNet]: 91 programPoint places, 15 predicate places. [2024-10-31 22:12:41,754 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 100 transitions, 297 flow [2024-10-31 22:12:41,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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) [2024-10-31 22:12:41,754 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:41,754 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] [2024-10-31 22:12:41,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:12:41,755 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:12:41,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:41,755 INFO L85 PathProgramCache]: Analyzing trace with hash -443007062, now seen corresponding path program 1 times [2024-10-31 22:12:41,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:41,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647289831] [2024-10-31 22:12:41,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:41,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:41,785 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:41,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:41,844 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:12:41,845 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-10-31 22:12:41,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-10-31 22:12:41,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-10-31 22:12:41,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-10-31 22:12:41,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-10-31 22:12:41,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-10-31 22:12:41,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-10-31 22:12:41,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-10-31 22:12:41,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-10-31 22:12:41,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:12:41,850 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:41,855 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:12:41,856 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:12:41,878 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:12:41,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 109 transitions, 234 flow [2024-10-31 22:12:41,934 INFO L124 PetriNetUnfolderBase]: 15/233 cut-off events. [2024-10-31 22:12:41,934 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:12:41,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 233 events. 15/233 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 456 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 142. Up to 8 conditions per place. [2024-10-31 22:12:41,935 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 109 transitions, 234 flow [2024-10-31 22:12:41,937 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 109 transitions, 234 flow [2024-10-31 22:12:41,939 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:41,940 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;@1a0f7373, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:41,940 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-31 22:12:41,944 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:12:41,944 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-10-31 22:12:41,945 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:41,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:41,945 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] [2024-10-31 22:12:41,945 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:12:41,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash 2051612229, now seen corresponding path program 1 times [2024-10-31 22:12:41,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:41,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914686153] [2024-10-31 22:12:41,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:41,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:41,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:41,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914686153] [2024-10-31 22:12:41,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914686153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:41,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:41,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:41,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895258056] [2024-10-31 22:12:41,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:41,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:41,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:41,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:41,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:42,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 109 [2024-10-31 22:12:42,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 109 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2024-10-31 22:12:42,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:42,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 109 [2024-10-31 22:12:42,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:42,094 INFO L124 PetriNetUnfolderBase]: 43/436 cut-off events. [2024-10-31 22:12:42,094 INFO L125 PetriNetUnfolderBase]: For 32/39 co-relation queries the response was YES. [2024-10-31 22:12:42,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 436 events. 43/436 cut-off events. For 32/39 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1892 event pairs, 23 based on Foata normal form. 51/422 useless extension candidates. Maximal degree in co-relation 309. Up to 83 conditions per place. [2024-10-31 22:12:42,098 INFO L140 encePairwiseOnDemand]: 98/109 looper letters, 12 selfloop transitions, 5 changer transitions 1/108 dead transitions. [2024-10-31 22:12:42,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 108 transitions, 266 flow [2024-10-31 22:12:42,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:42,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:42,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2024-10-31 22:12:42,099 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9113149847094801 [2024-10-31 22:12:42,100 INFO L175 Difference]: Start difference. First operand has 105 places, 109 transitions, 234 flow. Second operand 3 states and 298 transitions. [2024-10-31 22:12:42,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 108 transitions, 266 flow [2024-10-31 22:12:42,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 108 transitions, 266 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:42,103 INFO L231 Difference]: Finished difference. Result has 109 places, 107 transitions, 260 flow [2024-10-31 22:12:42,103 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=109, PETRI_TRANSITIONS=107} [2024-10-31 22:12:42,105 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, 4 predicate places. [2024-10-31 22:12:42,105 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 107 transitions, 260 flow [2024-10-31 22:12:42,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2024-10-31 22:12:42,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:42,106 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] [2024-10-31 22:12:42,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:12:42,106 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:12:42,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:42,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1202214518, now seen corresponding path program 1 times [2024-10-31 22:12:42,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:42,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652531418] [2024-10-31 22:12:42,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:42,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:42,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:42,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:42,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652531418] [2024-10-31 22:12:42,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652531418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:42,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:42,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:12:42,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278940207] [2024-10-31 22:12:42,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:42,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:12:42,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:42,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:12:42,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:42,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 109 [2024-10-31 22:12:42,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 107 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 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) [2024-10-31 22:12:42,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:42,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 109 [2024-10-31 22:12:42,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:42,643 INFO L124 PetriNetUnfolderBase]: 28/353 cut-off events. [2024-10-31 22:12:42,644 INFO L125 PetriNetUnfolderBase]: For 40/45 co-relation queries the response was YES. [2024-10-31 22:12:42,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 353 events. 28/353 cut-off events. For 40/45 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1340 event pairs, 9 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 273. Up to 45 conditions per place. [2024-10-31 22:12:42,647 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 16 selfloop transitions, 5 changer transitions 0/106 dead transitions. [2024-10-31 22:12:42,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 106 transitions, 300 flow [2024-10-31 22:12:42,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:12:42,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:12:42,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 514 transitions. [2024-10-31 22:12:42,662 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7859327217125383 [2024-10-31 22:12:42,662 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 260 flow. Second operand 6 states and 514 transitions. [2024-10-31 22:12:42,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 106 transitions, 300 flow [2024-10-31 22:12:42,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 106 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:42,666 INFO L231 Difference]: Finished difference. Result has 110 places, 106 transitions, 258 flow [2024-10-31 22:12:42,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=258, PETRI_PLACES=110, PETRI_TRANSITIONS=106} [2024-10-31 22:12:42,668 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, 5 predicate places. [2024-10-31 22:12:42,668 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 106 transitions, 258 flow [2024-10-31 22:12:42,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 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) [2024-10-31 22:12:42,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:42,669 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] [2024-10-31 22:12:42,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:12:42,670 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:12:42,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:42,671 INFO L85 PathProgramCache]: Analyzing trace with hash -155149538, now seen corresponding path program 1 times [2024-10-31 22:12:42,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:42,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182571015] [2024-10-31 22:12:42,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:42,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:42,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:42,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:42,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182571015] [2024-10-31 22:12:42,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182571015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:42,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:42,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:42,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916194259] [2024-10-31 22:12:42,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:42,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:42,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:42,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:42,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:42,718 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 109 [2024-10-31 22:12:42,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 106 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2024-10-31 22:12:42,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:42,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 109 [2024-10-31 22:12:42,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:42,879 INFO L124 PetriNetUnfolderBase]: 102/1044 cut-off events. [2024-10-31 22:12:42,879 INFO L125 PetriNetUnfolderBase]: For 95/116 co-relation queries the response was YES. [2024-10-31 22:12:42,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1337 conditions, 1044 events. 102/1044 cut-off events. For 95/116 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7261 event pairs, 25 based on Foata normal form. 4/885 useless extension candidates. Maximal degree in co-relation 613. Up to 93 conditions per place. [2024-10-31 22:12:42,889 INFO L140 encePairwiseOnDemand]: 102/109 looper letters, 14 selfloop transitions, 5 changer transitions 0/114 dead transitions. [2024-10-31 22:12:42,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 114 transitions, 323 flow [2024-10-31 22:12:42,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:42,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:42,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-10-31 22:12:42,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9174311926605505 [2024-10-31 22:12:42,891 INFO L175 Difference]: Start difference. First operand has 110 places, 106 transitions, 258 flow. Second operand 3 states and 300 transitions. [2024-10-31 22:12:42,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 114 transitions, 323 flow [2024-10-31 22:12:42,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 114 transitions, 313 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:12:42,895 INFO L231 Difference]: Finished difference. Result has 109 places, 111 transitions, 292 flow [2024-10-31 22:12:42,896 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=109, PETRI_TRANSITIONS=111} [2024-10-31 22:12:42,897 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, 4 predicate places. [2024-10-31 22:12:42,897 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 111 transitions, 292 flow [2024-10-31 22:12:42,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2024-10-31 22:12:42,897 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:42,897 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] [2024-10-31 22:12:42,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:12:42,898 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:12:42,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:42,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1904705372, now seen corresponding path program 1 times [2024-10-31 22:12:42,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:42,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338063039] [2024-10-31 22:12:42,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:42,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:42,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:42,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:42,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338063039] [2024-10-31 22:12:42,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338063039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:42,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:42,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:42,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49219414] [2024-10-31 22:12:42,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:42,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:42,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:42,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:42,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:42,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 109 [2024-10-31 22:12:42,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 111 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2024-10-31 22:12:42,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:42,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 109 [2024-10-31 22:12:42,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:43,057 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([329] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][102], [106#true, 124#true, 26#L1022-1true, 104#true, 73#L1022-2true, Black: 119#true, 71#L1034-4true, 121#(= |#race~ready~0| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:43,057 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2024-10-31 22:12:43,057 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:43,057 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2024-10-31 22:12:43,057 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:43,070 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([342] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][111], [34#L1022-1true, 106#true, 124#true, 104#true, Black: 119#true, 71#L1034-4true, 82#L1022-2true, 121#(= |#race~ready~0| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:43,070 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2024-10-31 22:12:43,070 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:43,071 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2024-10-31 22:12:43,071 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:43,079 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([329] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][57], [106#true, 26#L1022-1true, 124#true, 33#L1035true, 104#true, 73#L1022-2true, Black: 119#true, 121#(= |#race~ready~0| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:43,079 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2024-10-31 22:12:43,080 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:43,080 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-10-31 22:12:43,080 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:43,090 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([342] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][86], [34#L1022-1true, 106#true, 124#true, 33#L1035true, 104#true, Black: 119#true, 82#L1022-2true, 121#(= |#race~ready~0| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:43,091 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2024-10-31 22:12:43,091 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:43,091 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:43,091 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-10-31 22:12:43,139 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([329] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][57], [106#true, 26#L1022-1true, 124#true, 59#ULTIMATE.startFINALtrue, 73#L1022-2true, 104#true, Black: 119#true, 121#(= |#race~ready~0| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:43,139 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2024-10-31 22:12:43,139 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2024-10-31 22:12:43,140 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2024-10-31 22:12:43,140 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-31 22:12:43,144 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([342] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][86], [34#L1022-1true, 106#true, 124#true, 59#ULTIMATE.startFINALtrue, 104#true, Black: 119#true, 82#L1022-2true, 121#(= |#race~ready~0| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:43,144 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2024-10-31 22:12:43,144 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2024-10-31 22:12:43,145 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2024-10-31 22:12:43,145 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-31 22:12:43,207 INFO L124 PetriNetUnfolderBase]: 298/1564 cut-off events. [2024-10-31 22:12:43,207 INFO L125 PetriNetUnfolderBase]: For 482/525 co-relation queries the response was YES. [2024-10-31 22:12:43,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2554 conditions, 1564 events. 298/1564 cut-off events. For 482/525 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 11499 event pairs, 48 based on Foata normal form. 8/1307 useless extension candidates. Maximal degree in co-relation 1971. Up to 348 conditions per place. [2024-10-31 22:12:43,220 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 14 selfloop transitions, 8 changer transitions 0/117 dead transitions. [2024-10-31 22:12:43,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 117 transitions, 360 flow [2024-10-31 22:12:43,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:43,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:43,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2024-10-31 22:12:43,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8899082568807339 [2024-10-31 22:12:43,222 INFO L175 Difference]: Start difference. First operand has 109 places, 111 transitions, 292 flow. Second operand 3 states and 291 transitions. [2024-10-31 22:12:43,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 117 transitions, 360 flow [2024-10-31 22:12:43,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 117 transitions, 346 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:43,226 INFO L231 Difference]: Finished difference. Result has 111 places, 117 transitions, 348 flow [2024-10-31 22:12:43,227 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=111, PETRI_TRANSITIONS=117} [2024-10-31 22:12:43,227 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, 6 predicate places. [2024-10-31 22:12:43,228 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 117 transitions, 348 flow [2024-10-31 22:12:43,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2024-10-31 22:12:43,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:43,228 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:43,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:12:43,229 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:12:43,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:43,229 INFO L85 PathProgramCache]: Analyzing trace with hash -674714638, now seen corresponding path program 1 times [2024-10-31 22:12:43,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:43,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386673629] [2024-10-31 22:12:43,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:43,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:43,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:43,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:43,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386673629] [2024-10-31 22:12:43,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386673629] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:43,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:43,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:43,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352262193] [2024-10-31 22:12:43,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:43,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:43,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:43,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:43,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:43,282 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 109 [2024-10-31 22:12:43,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 117 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2024-10-31 22:12:43,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:43,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 109 [2024-10-31 22:12:43,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:43,417 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([329] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][104], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 106#true, 124#true, 26#L1022-1true, 73#L1022-2true, 104#true, 71#L1034-4true, 129#true, Black: 119#true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:43,417 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2024-10-31 22:12:43,417 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:43,417 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:43,417 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2024-10-31 22:12:43,418 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([342] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][119], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 34#L1022-1true, 106#true, 124#true, 104#true, 71#L1034-4true, Black: 119#true, 129#true, 82#L1022-2true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:43,418 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2024-10-31 22:12:43,418 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2024-10-31 22:12:43,418 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:43,418 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:43,432 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([329] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][57], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 106#true, 124#true, 26#L1022-1true, 33#L1035true, 73#L1022-2true, 104#true, Black: 119#true, 129#true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:43,432 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2024-10-31 22:12:43,432 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:43,432 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:43,433 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-10-31 22:12:43,449 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([342] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][85], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 34#L1022-1true, 106#true, 124#true, 33#L1035true, 104#true, Black: 119#true, 129#true, 82#L1022-2true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:43,449 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2024-10-31 22:12:43,449 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-10-31 22:12:43,449 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:43,450 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:43,677 INFO L124 PetriNetUnfolderBase]: 382/2576 cut-off events. [2024-10-31 22:12:43,677 INFO L125 PetriNetUnfolderBase]: For 864/1159 co-relation queries the response was YES. [2024-10-31 22:12:43,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4178 conditions, 2576 events. 382/2576 cut-off events. For 864/1159 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 23527 event pairs, 42 based on Foata normal form. 25/2272 useless extension candidates. Maximal degree in co-relation 2510. Up to 353 conditions per place. [2024-10-31 22:12:43,699 INFO L140 encePairwiseOnDemand]: 102/109 looper letters, 16 selfloop transitions, 7 changer transitions 0/127 dead transitions. [2024-10-31 22:12:43,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 127 transitions, 435 flow [2024-10-31 22:12:43,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:43,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:43,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-10-31 22:12:43,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9174311926605505 [2024-10-31 22:12:43,701 INFO L175 Difference]: Start difference. First operand has 111 places, 117 transitions, 348 flow. Second operand 3 states and 300 transitions. [2024-10-31 22:12:43,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 127 transitions, 435 flow [2024-10-31 22:12:43,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 127 transitions, 419 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:43,705 INFO L231 Difference]: Finished difference. Result has 113 places, 124 transitions, 402 flow [2024-10-31 22:12:43,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=113, PETRI_TRANSITIONS=124} [2024-10-31 22:12:43,706 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, 8 predicate places. [2024-10-31 22:12:43,706 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 124 transitions, 402 flow [2024-10-31 22:12:43,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2024-10-31 22:12:43,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:43,707 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] [2024-10-31 22:12:43,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:12:43,707 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:12:43,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:43,708 INFO L85 PathProgramCache]: Analyzing trace with hash -868542783, now seen corresponding path program 1 times [2024-10-31 22:12:43,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:43,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949816984] [2024-10-31 22:12:43,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:43,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:43,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:43,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:43,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949816984] [2024-10-31 22:12:43,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949816984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:43,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:43,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:12:43,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453197884] [2024-10-31 22:12:43,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:43,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:12:43,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:43,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:12:43,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:12:43,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 109 [2024-10-31 22:12:43,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 124 transitions, 402 flow. Second operand has 5 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 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) [2024-10-31 22:12:43,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:43,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 109 [2024-10-31 22:12:43,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:44,025 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([329] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][100], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 106#true, 26#L1022-1true, Black: 131#(= |#race~data~0| 0), 104#true, 73#L1022-2true, 134#true, 129#true, Black: 119#true, 71#L1034-4true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:44,025 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2024-10-31 22:12:44,025 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:44,025 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:44,025 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2024-10-31 22:12:44,026 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([342] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][123], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 34#L1022-1true, 106#true, Black: 131#(= |#race~data~0| 0), 104#true, 134#true, Black: 119#true, 129#true, 71#L1034-4true, 82#L1022-2true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:44,027 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2024-10-31 22:12:44,027 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:44,027 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2024-10-31 22:12:44,027 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:44,040 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([329] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][57], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 106#true, 26#L1022-1true, 33#L1035true, Black: 131#(= |#race~data~0| 0), 73#L1022-2true, 104#true, 134#true, 129#true, Black: 119#true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:44,041 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2024-10-31 22:12:44,041 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-10-31 22:12:44,041 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:44,041 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:44,058 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([342] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][78], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 34#L1022-1true, 106#true, 33#L1035true, Black: 131#(= |#race~data~0| 0), 104#true, 134#true, 129#true, Black: 119#true, 82#L1022-2true, Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|)]) [2024-10-31 22:12:44,058 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2024-10-31 22:12:44,058 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:44,058 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-10-31 22:12:44,058 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:44,331 INFO L124 PetriNetUnfolderBase]: 363/2559 cut-off events. [2024-10-31 22:12:44,332 INFO L125 PetriNetUnfolderBase]: For 786/1003 co-relation queries the response was YES. [2024-10-31 22:12:44,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4344 conditions, 2559 events. 363/2559 cut-off events. For 786/1003 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 23595 event pairs, 33 based on Foata normal form. 1/2310 useless extension candidates. Maximal degree in co-relation 3398. Up to 329 conditions per place. [2024-10-31 22:12:44,350 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 14 selfloop transitions, 2 changer transitions 5/130 dead transitions. [2024-10-31 22:12:44,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 130 transitions, 456 flow [2024-10-31 22:12:44,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:12:44,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:12:44,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2024-10-31 22:12:44,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8501529051987767 [2024-10-31 22:12:44,353 INFO L175 Difference]: Start difference. First operand has 113 places, 124 transitions, 402 flow. Second operand 6 states and 556 transitions. [2024-10-31 22:12:44,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 130 transitions, 456 flow [2024-10-31 22:12:44,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 130 transitions, 442 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:44,359 INFO L231 Difference]: Finished difference. Result has 120 places, 125 transitions, 410 flow [2024-10-31 22:12:44,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=410, PETRI_PLACES=120, PETRI_TRANSITIONS=125} [2024-10-31 22:12:44,360 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, 15 predicate places. [2024-10-31 22:12:44,360 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 125 transitions, 410 flow [2024-10-31 22:12:44,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 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) [2024-10-31 22:12:44,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:44,361 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] [2024-10-31 22:12:44,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:12:44,362 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:12:44,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:44,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1025210636, now seen corresponding path program 1 times [2024-10-31 22:12:44,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:44,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649543841] [2024-10-31 22:12:44,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:44,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:12:44,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:44,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649543841] [2024-10-31 22:12:44,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649543841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:44,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:44,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:12:44,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955864564] [2024-10-31 22:12:44,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:44,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:44,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:44,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:44,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:44,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 109 [2024-10-31 22:12:44,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 125 transitions, 410 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2024-10-31 22:12:44,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:44,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 109 [2024-10-31 22:12:44,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:44,619 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([329] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][78], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 26#L1022-1true, Black: 131#(= |#race~data~0| 0), 145#true, 73#L1022-2true, 104#true, 134#true, 71#L1034-4true, Black: 136#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 140#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), Black: 137#(<= |ULTIMATE.start_main_~threads_total~0#1| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|), Black: 138#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), 106#true, Black: 119#true]) [2024-10-31 22:12:44,619 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2024-10-31 22:12:44,619 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:44,619 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2024-10-31 22:12:44,620 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:44,622 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([342] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][101], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), Black: 131#(= |#race~data~0| 0), 145#true, 104#true, 134#true, 71#L1034-4true, Black: 136#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 140#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), Black: 137#(<= |ULTIMATE.start_main_~threads_total~0#1| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|), Black: 138#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), 34#L1022-1true, 106#true, Black: 119#true, 82#L1022-2true]) [2024-10-31 22:12:44,623 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2024-10-31 22:12:44,623 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:44,623 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-10-31 22:12:44,623 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2024-10-31 22:12:44,633 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([329] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][40], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 26#L1022-1true, 33#L1035true, Black: 131#(= |#race~data~0| 0), 145#true, 73#L1022-2true, 104#true, 134#true, Black: 136#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 140#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), Black: 137#(<= |ULTIMATE.start_main_~threads_total~0#1| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|), Black: 138#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), 106#true, Black: 119#true]) [2024-10-31 22:12:44,634 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2024-10-31 22:12:44,634 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-10-31 22:12:44,634 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:44,634 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:44,646 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([342] L1022-4-->L1022-1: Formula: (= |v_#race~ready~0_4| 0) InVars {} OutVars{#race~ready~0=|v_#race~ready~0_4|} AuxVars[] AssignedVars[#race~ready~0][58], [Black: 126#(= |#race~ready~0| |ULTIMATE.start_main_#t~nondet11#1|), 33#L1035true, Black: 131#(= |#race~data~0| 0), 145#true, 104#true, 134#true, Black: 136#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 140#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), Black: 137#(<= |ULTIMATE.start_main_~threads_total~0#1| 0), Black: 110#(= |#race~data~0| |ULTIMATE.start_main_#t~nondet10#1|), Black: 138#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), 34#L1022-1true, 106#true, Black: 119#true, 82#L1022-2true]) [2024-10-31 22:12:44,646 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is cut-off event [2024-10-31 22:12:44,646 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-10-31 22:12:44,647 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:44,647 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-10-31 22:12:44,770 INFO L124 PetriNetUnfolderBase]: 217/1432 cut-off events. [2024-10-31 22:12:44,770 INFO L125 PetriNetUnfolderBase]: For 355/473 co-relation queries the response was YES. [2024-10-31 22:12:44,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2394 conditions, 1432 events. 217/1432 cut-off events. For 355/473 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 11187 event pairs, 34 based on Foata normal form. 9/1331 useless extension candidates. Maximal degree in co-relation 2338. Up to 214 conditions per place. [2024-10-31 22:12:44,782 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 6 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2024-10-31 22:12:44,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 113 transitions, 368 flow [2024-10-31 22:12:44,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:44,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:44,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2024-10-31 22:12:44,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9113149847094801 [2024-10-31 22:12:44,784 INFO L175 Difference]: Start difference. First operand has 120 places, 125 transitions, 410 flow. Second operand 3 states and 298 transitions. [2024-10-31 22:12:44,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 113 transitions, 368 flow [2024-10-31 22:12:44,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 113 transitions, 346 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-10-31 22:12:44,791 INFO L231 Difference]: Finished difference. Result has 112 places, 113 transitions, 340 flow [2024-10-31 22:12:44,792 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=112, PETRI_TRANSITIONS=113} [2024-10-31 22:12:44,793 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, 7 predicate places. [2024-10-31 22:12:44,793 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 113 transitions, 340 flow [2024-10-31 22:12:44,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2024-10-31 22:12:44,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:44,794 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] [2024-10-31 22:12:44,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:12:44,794 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:12:44,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:44,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1310043735, now seen corresponding path program 1 times [2024-10-31 22:12:44,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:44,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529144452] [2024-10-31 22:12:44,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:44,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:44,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:44,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:44,833 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:12:44,833 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2024-10-31 22:12:44,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-10-31 22:12:44,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-10-31 22:12:44,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-10-31 22:12:44,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-10-31 22:12:44,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2024-10-31 22:12:44,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2024-10-31 22:12:44,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-10-31 22:12:44,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-10-31 22:12:44,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-10-31 22:12:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-10-31 22:12:44,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:12:44,836 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:44,895 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-10-31 22:12:44,895 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:12:44,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:12:44 BasicIcfg [2024-10-31 22:12:44,902 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:12:44,902 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:12:44,902 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:12:44,903 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:12:44,903 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:38" (3/4) ... [2024-10-31 22:12:44,904 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-31 22:12:44,964 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:12:44,964 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:12:44,965 INFO L158 Benchmark]: Toolchain (without parser) took 7564.69ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 131.6MB in the beginning and 217.8MB in the end (delta: -86.2MB). Peak memory consumption was 144.8MB. Max. memory is 16.1GB. [2024-10-31 22:12:44,966 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:12:44,966 INFO L158 Benchmark]: CACSL2BoogieTranslator took 863.79ms. Allocated memory is still 176.2MB. Free memory was 131.2MB in the beginning and 101.0MB in the end (delta: 30.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-31 22:12:44,966 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.01ms. Allocated memory is still 176.2MB. Free memory was 101.0MB in the beginning and 98.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:44,967 INFO L158 Benchmark]: Boogie Preprocessor took 37.40ms. Allocated memory is still 176.2MB. Free memory was 98.5MB in the beginning and 96.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:44,967 INFO L158 Benchmark]: RCFGBuilder took 588.95ms. Allocated memory is still 176.2MB. Free memory was 96.8MB in the beginning and 130.4MB in the end (delta: -33.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-31 22:12:44,968 INFO L158 Benchmark]: TraceAbstraction took 5938.50ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 129.7MB in the beginning and 73.2MB in the end (delta: 56.5MB). Peak memory consumption was 136.9MB. Max. memory is 16.1GB. [2024-10-31 22:12:44,968 INFO L158 Benchmark]: Witness Printer took 62.26ms. Allocated memory is still 255.9MB. Free memory was 73.2MB in the beginning and 217.8MB in the end (delta: -144.6MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-10-31 22:12:44,970 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 863.79ms. Allocated memory is still 176.2MB. Free memory was 131.2MB in the beginning and 101.0MB in the end (delta: 30.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.01ms. Allocated memory is still 176.2MB. Free memory was 101.0MB in the beginning and 98.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.40ms. Allocated memory is still 176.2MB. Free memory was 98.5MB in the beginning and 96.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 588.95ms. Allocated memory is still 176.2MB. Free memory was 96.8MB in the beginning and 130.4MB in the end (delta: -33.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5938.50ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 129.7MB in the beginning and 73.2MB in the end (delta: 56.5MB). Peak memory consumption was 136.9MB. Max. memory is 16.1GB. * Witness Printer took 62.26ms. Allocated memory is still 255.9MB. Free memory was 73.2MB in the beginning and 217.8MB in the end (delta: -144.6MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1022]: Data race detected Data race detected The following path leads to a data race: [L1019] 0 _Bool ready = 0; VAL [ready=0] [L1020] 0 int data = 0; VAL [data=0, ready=0] [L1027] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, ready=0, threads_total=1] [L1028] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data=0, ready=0] [L1028] RET 0 assume_abort_if_not(threads_total >= 0) [L1029] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data=0, ready=0, threads_total=1, tids={-2:0}] [L1030] 0 int i = 0; VAL [data=0, i=0, ready=0, threads_total=1, tids={-2:0}] [L1030] COND TRUE 0 i < threads_total VAL [data=0, i=0, ready=0, threads_total=1, tids={-2:0}] [L1031] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data=0, i=0, ready=0, threads_total=1, tids={-2:0}] [L1031] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, i=0, ready=0, threads_total=1, tids={-2:0}] [L1022] 1 !ready VAL [\old(arg)={0:0}, arg={0:0}, data=0, ready=0] [L1030] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, i=1, ready=0, threads_total=1, tids={-2:0}] [L1030] COND FALSE 0 !(i < threads_total) VAL [\old(arg)={0:0}, arg={0:0}, data=0, i=1, ready=0, threads_total=1, tids={-2:0}] [L1033] 0 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, ready=0, threads_total=1, tids={-2:0}] [L1034] 0 ready = 1 VAL [\old(arg)={0:0}, arg={0:0}, data=0, ready=1, threads_total=1, tids={-2:0}] [L1022] 1 !ready VAL [\old(arg)={0:0}, arg={0:0}, data=0, ready=1] Now there is a data race on ~ready~0 between C: ready = 1 [1034] and C: !ready [1022] - UnprovableResult [Line: 1033]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1031]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1034]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1036]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1031]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1023]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 211 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 116 mSDsluCounter, 83 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 284 IncrementalHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 12 mSDtfsCounter, 284 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=297occurred in iteration=6, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 113 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 306 IncrementalHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 17 mSDtfsCounter, 306 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=410occurred in iteration=6, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 309 NumberOfCodeBlocks, 309 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 249 ConstructedInterpolants, 0 QuantifiedInterpolants, 500 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:12:45,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_962528f3-c90b-4e47-a4bd-d31f311bcac2/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE