./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-index.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/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_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-index.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/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_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/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 04b5785f32baf312774bbdd81055e04eea16b74acd932ddd06ae0cc7f49160c1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:15:49,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:15:49,199 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:15:49,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:15:49,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:15:49,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:15:49,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:15:49,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:15:49,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:15:49,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:15:49,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:15:49,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:15:49,252 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:15:49,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:15:49,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:15:49,255 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:15:49,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:15:49,256 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:15:49,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:15:49,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:15:49,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:15:49,261 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:15:49,262 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:15:49,262 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:15:49,262 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:15:49,263 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:15:49,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:15:49,263 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:15:49,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:15:49,264 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:15:49,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:15:49,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:49,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:15:49,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:15:49,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:15:49,269 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:15:49,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:15:49,270 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:15:49,270 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:15:49,271 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:15:49,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:15:49,272 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_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04b5785f32baf312774bbdd81055e04eea16b74acd932ddd06ae0cc7f49160c1 [2024-10-31 22:15:49,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:15:49,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:15:49,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:15:49,621 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:15:49,621 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:15:49,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-index.i Unable to find full path for "g++" [2024-10-31 22:15:51,627 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:51,967 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:51,972 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/sv-benchmarks/c/pthread-race-challenges/per-thread-array-index.i [2024-10-31 22:15:52,002 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/data/3fd7313fa/8d035cb6a72745fe9715ae94739fa20e/FLAG8ba3e2f3f [2024-10-31 22:15:52,022 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/data/3fd7313fa/8d035cb6a72745fe9715ae94739fa20e [2024-10-31 22:15:52,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:52,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:52,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:52,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:52,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:52,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:52" (1/1) ... [2024-10-31 22:15:52,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@254e0a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52, skipping insertion in model container [2024-10-31 22:15:52,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:52" (1/1) ... [2024-10-31 22:15:52,114 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:52,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:52,746 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:15:52,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:52,868 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:15:52,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52 WrapperNode [2024-10-31 22:15:52,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:52,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:52,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:15:52,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:15:52,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52" (1/1) ... [2024-10-31 22:15:52,905 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52" (1/1) ... [2024-10-31 22:15:52,937 INFO L138 Inliner]: procedures = 261, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-10-31 22:15:52,937 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:52,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:15:52,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:15:52,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:15:52,946 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52" (1/1) ... [2024-10-31 22:15:52,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52" (1/1) ... [2024-10-31 22:15:52,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52" (1/1) ... [2024-10-31 22:15:52,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52" (1/1) ... [2024-10-31 22:15:52,965 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52" (1/1) ... [2024-10-31 22:15:52,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52" (1/1) ... [2024-10-31 22:15:52,975 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52" (1/1) ... [2024-10-31 22:15:52,976 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52" (1/1) ... [2024-10-31 22:15:52,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:15:52,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:15:52,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:15:52,980 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:15:52,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52" (1/1) ... [2024-10-31 22:15:52,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:53,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:53,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:15:53,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:15:53,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:15:53,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:15:53,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:15:53,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:15:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-31 22:15:53,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-31 22:15:53,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:15:53,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:15:53,066 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 22:15:53,259 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:15:53,262 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:15:53,570 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:15:53,571 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:15:53,589 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:15:53,590 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:15:53,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:53 BoogieIcfgContainer [2024-10-31 22:15:53,591 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:15:53,594 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:15:53,594 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:15:53,599 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:15:53,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:15:52" (1/3) ... [2024-10-31 22:15:53,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4946f903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:53, skipping insertion in model container [2024-10-31 22:15:53,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:52" (2/3) ... [2024-10-31 22:15:53,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4946f903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:53, skipping insertion in model container [2024-10-31 22:15:53,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:53" (3/3) ... [2024-10-31 22:15:53,604 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-index.i [2024-10-31 22:15:53,624 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:15:53,625 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-31 22:15:53,625 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:15:53,691 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:15:53,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions, 199 flow [2024-10-31 22:15:53,827 INFO L124 PetriNetUnfolderBase]: 6/131 cut-off events. [2024-10-31 22:15:53,827 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:15:53,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 131 events. 6/131 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 229 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 64. Up to 4 conditions per place. [2024-10-31 22:15:53,834 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 96 transitions, 199 flow [2024-10-31 22:15:53,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 96 transitions, 199 flow [2024-10-31 22:15:53,849 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:53,855 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;@5e599fde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:53,855 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-31 22:15:53,862 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:15:53,863 INFO L124 PetriNetUnfolderBase]: 1/24 cut-off events. [2024-10-31 22:15:53,863 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:15:53,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:53,864 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] [2024-10-31 22:15:53,864 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:53,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:53,870 INFO L85 PathProgramCache]: Analyzing trace with hash -544149586, now seen corresponding path program 1 times [2024-10-31 22:15:53,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:53,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945617685] [2024-10-31 22:15:53,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:53,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:54,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:54,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:54,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945617685] [2024-10-31 22:15:54,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945617685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:54,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:54,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:54,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309743635] [2024-10-31 22:15:54,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:54,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:54,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:54,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:54,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:54,255 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 96 [2024-10-31 22:15:54,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 96 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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 22:15:54,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:54,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 96 [2024-10-31 22:15:54,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:54,343 INFO L124 PetriNetUnfolderBase]: 3/161 cut-off events. [2024-10-31 22:15:54,343 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:15:54,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 161 events. 3/161 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 330 event pairs, 2 based on Foata normal form. 5/147 useless extension candidates. Maximal degree in co-relation 101. Up to 15 conditions per place. [2024-10-31 22:15:54,345 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 8 selfloop transitions, 2 changer transitions 1/92 dead transitions. [2024-10-31 22:15:54,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 92 transitions, 211 flow [2024-10-31 22:15:54,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:54,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:54,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2024-10-31 22:15:54,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2024-10-31 22:15:54,365 INFO L175 Difference]: Start difference. First operand has 95 places, 96 transitions, 199 flow. Second operand 3 states and 260 transitions. [2024-10-31 22:15:54,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 92 transitions, 211 flow [2024-10-31 22:15:54,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 92 transitions, 211 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:54,376 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 193 flow [2024-10-31 22:15:54,380 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2024-10-31 22:15:54,386 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 1 predicate places. [2024-10-31 22:15:54,386 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 193 flow [2024-10-31 22:15:54,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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 22:15:54,386 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:54,387 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 22:15:54,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:15:54,387 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:54,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:54,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1305463396, now seen corresponding path program 1 times [2024-10-31 22:15:54,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:54,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528226321] [2024-10-31 22:15:54,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:54,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:54,523 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 22:15:54,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:54,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528226321] [2024-10-31 22:15:54,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528226321] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:54,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:54,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:54,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648249930] [2024-10-31 22:15:54,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:54,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:54,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:54,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:54,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:54,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 96 [2024-10-31 22:15:54,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 193 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 22:15:54,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:54,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 96 [2024-10-31 22:15:54,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:54,592 INFO L124 PetriNetUnfolderBase]: 5/169 cut-off events. [2024-10-31 22:15:54,592 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-31 22:15:54,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 169 events. 5/169 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 335 event pairs, 2 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 164. Up to 16 conditions per place. [2024-10-31 22:15:54,594 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 7 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-10-31 22:15:54,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 91 transitions, 211 flow [2024-10-31 22:15:54,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:54,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:54,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2024-10-31 22:15:54,598 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9131944444444444 [2024-10-31 22:15:54,598 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 193 flow. Second operand 3 states and 263 transitions. [2024-10-31 22:15:54,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 91 transitions, 211 flow [2024-10-31 22:15:54,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 91 transitions, 207 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:54,605 INFO L231 Difference]: Finished difference. Result has 94 places, 91 transitions, 199 flow [2024-10-31 22:15:54,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=94, PETRI_TRANSITIONS=91} [2024-10-31 22:15:54,606 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -1 predicate places. [2024-10-31 22:15:54,607 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 91 transitions, 199 flow [2024-10-31 22:15:54,607 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 22:15:54,607 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:54,607 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] [2024-10-31 22:15:54,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:15:54,608 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:54,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:54,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1732395560, now seen corresponding path program 1 times [2024-10-31 22:15:54,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:54,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301822745] [2024-10-31 22:15:54,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:54,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:55,332 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 22:15:55,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:55,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301822745] [2024-10-31 22:15:55,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301822745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:55,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:55,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:55,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913316312] [2024-10-31 22:15:55,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:55,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:55,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:55,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:55,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:55,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 96 [2024-10-31 22:15:55,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 91 transitions, 199 flow. Second operand has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:55,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:55,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 96 [2024-10-31 22:15:55,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:55,803 INFO L124 PetriNetUnfolderBase]: 73/402 cut-off events. [2024-10-31 22:15:55,806 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:15:55,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 402 events. 73/402 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1947 event pairs, 35 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 501. Up to 159 conditions per place. [2024-10-31 22:15:55,810 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 23 selfloop transitions, 22 changer transitions 0/112 dead transitions. [2024-10-31 22:15:55,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 112 transitions, 331 flow [2024-10-31 22:15:55,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:55,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:15:55,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 460 transitions. [2024-10-31 22:15:55,813 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7986111111111112 [2024-10-31 22:15:55,813 INFO L175 Difference]: Start difference. First operand has 94 places, 91 transitions, 199 flow. Second operand 6 states and 460 transitions. [2024-10-31 22:15:55,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 112 transitions, 331 flow [2024-10-31 22:15:55,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 112 transitions, 331 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:55,816 INFO L231 Difference]: Finished difference. Result has 104 places, 112 transitions, 349 flow [2024-10-31 22:15:55,817 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=349, PETRI_PLACES=104, PETRI_TRANSITIONS=112} [2024-10-31 22:15:55,817 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 9 predicate places. [2024-10-31 22:15:55,818 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 112 transitions, 349 flow [2024-10-31 22:15:55,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:55,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:55,818 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] [2024-10-31 22:15:55,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:15:55,819 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:55,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:55,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1866357126, now seen corresponding path program 1 times [2024-10-31 22:15:55,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:55,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699786907] [2024-10-31 22:15:55,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:55,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:55,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:55,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:55,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699786907] [2024-10-31 22:15:55,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699786907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:55,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:55,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:55,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206915151] [2024-10-31 22:15:55,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:55,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:55,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:55,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:55,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:56,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 96 [2024-10-31 22:15:56,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 112 transitions, 349 flow. Second operand has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:56,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:56,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 96 [2024-10-31 22:15:56,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:56,186 INFO L124 PetriNetUnfolderBase]: 34/262 cut-off events. [2024-10-31 22:15:56,186 INFO L125 PetriNetUnfolderBase]: For 31/39 co-relation queries the response was YES. [2024-10-31 22:15:56,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 262 events. 34/262 cut-off events. For 31/39 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 933 event pairs, 0 based on Foata normal form. 2/254 useless extension candidates. Maximal degree in co-relation 335. Up to 49 conditions per place. [2024-10-31 22:15:56,189 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 11 selfloop transitions, 2 changer transitions 5/117 dead transitions. [2024-10-31 22:15:56,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 117 transitions, 395 flow [2024-10-31 22:15:56,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:56,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:15:56,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2024-10-31 22:15:56,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8663194444444444 [2024-10-31 22:15:56,192 INFO L175 Difference]: Start difference. First operand has 104 places, 112 transitions, 349 flow. Second operand 6 states and 499 transitions. [2024-10-31 22:15:56,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 117 transitions, 395 flow [2024-10-31 22:15:56,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 117 transitions, 395 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:56,197 INFO L231 Difference]: Finished difference. Result has 113 places, 112 transitions, 367 flow [2024-10-31 22:15:56,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=367, PETRI_PLACES=113, PETRI_TRANSITIONS=112} [2024-10-31 22:15:56,198 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 18 predicate places. [2024-10-31 22:15:56,199 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 112 transitions, 367 flow [2024-10-31 22:15:56,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:56,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:56,200 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 22:15:56,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:15:56,200 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:56,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:56,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1957891883, now seen corresponding path program 1 times [2024-10-31 22:15:56,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:56,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501783013] [2024-10-31 22:15:56,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:56,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:56,628 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 22:15:56,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:56,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501783013] [2024-10-31 22:15:56,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501783013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:56,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:56,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:56,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983344925] [2024-10-31 22:15:56,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:56,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:56,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:56,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:56,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:56,744 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 96 [2024-10-31 22:15:56,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 112 transitions, 367 flow. Second operand has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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 22:15:56,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:56,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 96 [2024-10-31 22:15:56,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:57,009 INFO L124 PetriNetUnfolderBase]: 131/506 cut-off events. [2024-10-31 22:15:57,009 INFO L125 PetriNetUnfolderBase]: For 135/137 co-relation queries the response was YES. [2024-10-31 22:15:57,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 506 events. 131/506 cut-off events. For 135/137 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2624 event pairs, 23 based on Foata normal form. 0/475 useless extension candidates. Maximal degree in co-relation 1034. Up to 240 conditions per place. [2024-10-31 22:15:57,015 INFO L140 encePairwiseOnDemand]: 81/96 looper letters, 35 selfloop transitions, 48 changer transitions 12/155 dead transitions. [2024-10-31 22:15:57,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 155 transitions, 689 flow [2024-10-31 22:15:57,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:57,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:15:57,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 491 transitions. [2024-10-31 22:15:57,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8524305555555556 [2024-10-31 22:15:57,019 INFO L175 Difference]: Start difference. First operand has 113 places, 112 transitions, 367 flow. Second operand 6 states and 491 transitions. [2024-10-31 22:15:57,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 155 transitions, 689 flow [2024-10-31 22:15:57,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 155 transitions, 675 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-31 22:15:57,031 INFO L231 Difference]: Finished difference. Result has 115 places, 143 transitions, 710 flow [2024-10-31 22:15:57,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=710, PETRI_PLACES=115, PETRI_TRANSITIONS=143} [2024-10-31 22:15:57,035 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 20 predicate places. [2024-10-31 22:15:57,036 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 143 transitions, 710 flow [2024-10-31 22:15:57,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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 22:15:57,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:57,038 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 22:15:57,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:15:57,039 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:57,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:57,040 INFO L85 PathProgramCache]: Analyzing trace with hash -676534449, now seen corresponding path program 1 times [2024-10-31 22:15:57,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:57,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765683599] [2024-10-31 22:15:57,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:57,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:57,479 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 22:15:57,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:57,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765683599] [2024-10-31 22:15:57,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765683599] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:57,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:57,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:57,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178151279] [2024-10-31 22:15:57,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:57,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:57,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:57,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:57,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:57,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 96 [2024-10-31 22:15:57,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 143 transitions, 710 flow. Second operand has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:57,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:57,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 96 [2024-10-31 22:15:57,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:57,825 INFO L124 PetriNetUnfolderBase]: 142/512 cut-off events. [2024-10-31 22:15:57,825 INFO L125 PetriNetUnfolderBase]: For 432/436 co-relation queries the response was YES. [2024-10-31 22:15:57,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1584 conditions, 512 events. 142/512 cut-off events. For 432/436 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2815 event pairs, 10 based on Foata normal form. 0/503 useless extension candidates. Maximal degree in co-relation 1505. Up to 241 conditions per place. [2024-10-31 22:15:57,830 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 73 selfloop transitions, 25 changer transitions 13/171 dead transitions. [2024-10-31 22:15:57,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 171 transitions, 1093 flow [2024-10-31 22:15:57,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:57,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:15:57,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 469 transitions. [2024-10-31 22:15:57,832 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8142361111111112 [2024-10-31 22:15:57,832 INFO L175 Difference]: Start difference. First operand has 115 places, 143 transitions, 710 flow. Second operand 6 states and 469 transitions. [2024-10-31 22:15:57,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 171 transitions, 1093 flow [2024-10-31 22:15:57,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 171 transitions, 1074 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-10-31 22:15:57,845 INFO L231 Difference]: Finished difference. Result has 114 places, 158 transitions, 926 flow [2024-10-31 22:15:57,845 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=926, PETRI_PLACES=114, PETRI_TRANSITIONS=158} [2024-10-31 22:15:57,846 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 19 predicate places. [2024-10-31 22:15:57,846 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 158 transitions, 926 flow [2024-10-31 22:15:57,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:57,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:57,848 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:57,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:15:57,848 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:15:57,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:57,849 INFO L85 PathProgramCache]: Analyzing trace with hash 360110075, now seen corresponding path program 1 times [2024-10-31 22:15:57,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:57,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642419973] [2024-10-31 22:15:57,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:57,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:15:57,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:15:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:15:57,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:15:57,923 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:15:57,924 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-10-31 22:15:57,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-10-31 22:15:57,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-10-31 22:15:57,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-10-31 22:15:57,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-10-31 22:15:57,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-10-31 22:15:57,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-10-31 22:15:57,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-10-31 22:15:57,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-10-31 22:15:57,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:15:57,928 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:57,933 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:15:57,933 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:15:57,968 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:15:57,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 117 transitions, 250 flow [2024-10-31 22:15:58,012 INFO L124 PetriNetUnfolderBase]: 11/223 cut-off events. [2024-10-31 22:15:58,012 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:15:58,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 223 events. 11/223 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 488 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 133. Up to 8 conditions per place. [2024-10-31 22:15:58,013 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 117 transitions, 250 flow [2024-10-31 22:15:58,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 117 transitions, 250 flow [2024-10-31 22:15:58,016 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:58,018 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;@5e599fde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:58,019 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-31 22:15:58,022 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:15:58,022 INFO L124 PetriNetUnfolderBase]: 1/24 cut-off events. [2024-10-31 22:15:58,022 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:15:58,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:58,023 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] [2024-10-31 22:15:58,023 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:15:58,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:58,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1771504451, now seen corresponding path program 1 times [2024-10-31 22:15:58,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:58,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624304962] [2024-10-31 22:15:58,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:58,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:58,053 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 22:15:58,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:58,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624304962] [2024-10-31 22:15:58,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624304962] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:58,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:58,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:58,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892761986] [2024-10-31 22:15:58,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:58,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:58,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:58,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:58,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:58,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 117 [2024-10-31 22:15:58,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 117 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 22:15:58,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:58,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 117 [2024-10-31 22:15:58,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:58,185 INFO L124 PetriNetUnfolderBase]: 19/441 cut-off events. [2024-10-31 22:15:58,185 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-31 22:15:58,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 441 events. 19/441 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1876 event pairs, 16 based on Foata normal form. 9/393 useless extension candidates. Maximal degree in co-relation 287. Up to 50 conditions per place. [2024-10-31 22:15:58,188 INFO L140 encePairwiseOnDemand]: 111/117 looper letters, 11 selfloop transitions, 2 changer transitions 1/113 dead transitions. [2024-10-31 22:15:58,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 113 transitions, 268 flow [2024-10-31 22:15:58,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:58,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:58,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2024-10-31 22:15:58,190 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031339031339032 [2024-10-31 22:15:58,190 INFO L175 Difference]: Start difference. First operand has 117 places, 117 transitions, 250 flow. Second operand 3 states and 317 transitions. [2024-10-31 22:15:58,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 113 transitions, 268 flow [2024-10-31 22:15:58,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 268 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:58,193 INFO L231 Difference]: Finished difference. Result has 118 places, 112 transitions, 244 flow [2024-10-31 22:15:58,194 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=116, 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=244, PETRI_PLACES=118, PETRI_TRANSITIONS=112} [2024-10-31 22:15:58,194 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 1 predicate places. [2024-10-31 22:15:58,195 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 112 transitions, 244 flow [2024-10-31 22:15:58,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 22:15:58,195 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:58,195 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 22:15:58,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:15:58,196 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:15:58,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:58,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1558441532, now seen corresponding path program 1 times [2024-10-31 22:15:58,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:58,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612096147] [2024-10-31 22:15:58,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:58,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:58,224 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 22:15:58,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:58,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612096147] [2024-10-31 22:15:58,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612096147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:58,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:58,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:58,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45617299] [2024-10-31 22:15:58,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:58,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:58,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:58,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:58,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:58,245 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 117 [2024-10-31 22:15:58,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 112 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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 22:15:58,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:58,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 117 [2024-10-31 22:15:58,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:58,353 INFO L124 PetriNetUnfolderBase]: 48/598 cut-off events. [2024-10-31 22:15:58,353 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-31 22:15:58,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 598 events. 48/598 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2965 event pairs, 27 based on Foata normal form. 0/544 useless extension candidates. Maximal degree in co-relation 692. Up to 97 conditions per place. [2024-10-31 22:15:58,358 INFO L140 encePairwiseOnDemand]: 111/117 looper letters, 12 selfloop transitions, 3 changer transitions 0/113 dead transitions. [2024-10-31 22:15:58,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 113 transitions, 281 flow [2024-10-31 22:15:58,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:58,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:58,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2024-10-31 22:15:58,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.905982905982906 [2024-10-31 22:15:58,361 INFO L175 Difference]: Start difference. First operand has 118 places, 112 transitions, 244 flow. Second operand 3 states and 318 transitions. [2024-10-31 22:15:58,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 113 transitions, 281 flow [2024-10-31 22:15:58,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 113 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:58,364 INFO L231 Difference]: Finished difference. Result has 115 places, 112 transitions, 255 flow [2024-10-31 22:15:58,364 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=115, PETRI_TRANSITIONS=112} [2024-10-31 22:15:58,365 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -2 predicate places. [2024-10-31 22:15:58,365 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 112 transitions, 255 flow [2024-10-31 22:15:58,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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 22:15:58,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:58,366 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] [2024-10-31 22:15:58,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:15:58,367 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:15:58,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:58,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1701174552, now seen corresponding path program 1 times [2024-10-31 22:15:58,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:58,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143502531] [2024-10-31 22:15:58,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:58,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:58,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:58,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:58,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143502531] [2024-10-31 22:15:58,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143502531] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:58,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:58,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:58,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671091439] [2024-10-31 22:15:58,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:58,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:58,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:58,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:58,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:58,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 117 [2024-10-31 22:15:58,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 112 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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 22:15:58,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:58,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 117 [2024-10-31 22:15:58,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:59,489 INFO L124 PetriNetUnfolderBase]: 1014/3169 cut-off events. [2024-10-31 22:15:59,490 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-10-31 22:15:59,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5061 conditions, 3169 events. 1014/3169 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 26242 event pairs, 586 based on Foata normal form. 0/2847 useless extension candidates. Maximal degree in co-relation 4117. Up to 1592 conditions per place. [2024-10-31 22:15:59,513 INFO L140 encePairwiseOnDemand]: 102/117 looper letters, 30 selfloop transitions, 38 changer transitions 0/150 dead transitions. [2024-10-31 22:15:59,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 150 transitions, 472 flow [2024-10-31 22:15:59,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:59,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:15:59,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 573 transitions. [2024-10-31 22:15:59,516 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8162393162393162 [2024-10-31 22:15:59,516 INFO L175 Difference]: Start difference. First operand has 115 places, 112 transitions, 255 flow. Second operand 6 states and 573 transitions. [2024-10-31 22:15:59,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 150 transitions, 472 flow [2024-10-31 22:15:59,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 150 transitions, 472 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:59,520 INFO L231 Difference]: Finished difference. Result has 125 places, 149 transitions, 509 flow [2024-10-31 22:15:59,520 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=509, PETRI_PLACES=125, PETRI_TRANSITIONS=149} [2024-10-31 22:15:59,521 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 8 predicate places. [2024-10-31 22:15:59,521 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 149 transitions, 509 flow [2024-10-31 22:15:59,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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 22:15:59,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:59,522 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] [2024-10-31 22:15:59,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:15:59,523 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:15:59,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:59,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1567212986, now seen corresponding path program 1 times [2024-10-31 22:15:59,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:59,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380767811] [2024-10-31 22:15:59,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:59,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:59,598 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 22:15:59,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:59,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380767811] [2024-10-31 22:15:59,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380767811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:59,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:59,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:59,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312400736] [2024-10-31 22:15:59,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:59,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:59,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:59,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:59,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:59,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 117 [2024-10-31 22:15:59,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 149 transitions, 509 flow. Second operand has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 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 22:15:59,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:59,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 117 [2024-10-31 22:15:59,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:00,042 INFO L124 PetriNetUnfolderBase]: 481/1741 cut-off events. [2024-10-31 22:16:00,043 INFO L125 PetriNetUnfolderBase]: For 382/462 co-relation queries the response was YES. [2024-10-31 22:16:00,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3209 conditions, 1741 events. 481/1741 cut-off events. For 382/462 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 12358 event pairs, 131 based on Foata normal form. 2/1643 useless extension candidates. Maximal degree in co-relation 2638. Up to 615 conditions per place. [2024-10-31 22:16:00,058 INFO L140 encePairwiseOnDemand]: 109/117 looper letters, 14 selfloop transitions, 2 changer transitions 5/155 dead transitions. [2024-10-31 22:16:00,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 155 transitions, 563 flow [2024-10-31 22:16:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:16:00,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:16:00,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 616 transitions. [2024-10-31 22:16:00,061 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8774928774928775 [2024-10-31 22:16:00,061 INFO L175 Difference]: Start difference. First operand has 125 places, 149 transitions, 509 flow. Second operand 6 states and 616 transitions. [2024-10-31 22:16:00,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 155 transitions, 563 flow [2024-10-31 22:16:00,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 155 transitions, 563 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:16:00,068 INFO L231 Difference]: Finished difference. Result has 134 places, 150 transitions, 531 flow [2024-10-31 22:16:00,069 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=509, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=531, PETRI_PLACES=134, PETRI_TRANSITIONS=150} [2024-10-31 22:16:00,069 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 17 predicate places. [2024-10-31 22:16:00,069 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 150 transitions, 531 flow [2024-10-31 22:16:00,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 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 22:16:00,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:00,070 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:00,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:16:00,071 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:16:00,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:00,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1925682072, now seen corresponding path program 1 times [2024-10-31 22:16:00,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:00,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982264319] [2024-10-31 22:16:00,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:00,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:00,432 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 22:16:00,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:00,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982264319] [2024-10-31 22:16:00,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982264319] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:00,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:00,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:16:00,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855136208] [2024-10-31 22:16:00,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:00,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:16:00,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:00,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:16:00,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:16:00,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 117 [2024-10-31 22:16:00,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 150 transitions, 531 flow. Second operand has 6 states, 6 states have (on average 89.33333333333333) internal successors, (536), 6 states have internal predecessors, (536), 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 22:16:00,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:00,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 117 [2024-10-31 22:16:00,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:02,022 INFO L124 PetriNetUnfolderBase]: 2425/6842 cut-off events. [2024-10-31 22:16:02,022 INFO L125 PetriNetUnfolderBase]: For 1864/2249 co-relation queries the response was YES. [2024-10-31 22:16:02,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14933 conditions, 6842 events. 2425/6842 cut-off events. For 1864/2249 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 62494 event pairs, 537 based on Foata normal form. 17/6325 useless extension candidates. Maximal degree in co-relation 14831. Up to 2882 conditions per place. [2024-10-31 22:16:02,083 INFO L140 encePairwiseOnDemand]: 98/117 looper letters, 86 selfloop transitions, 86 changer transitions 0/260 dead transitions. [2024-10-31 22:16:02,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 260 transitions, 1359 flow [2024-10-31 22:16:02,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:16:02,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:16:02,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 623 transitions. [2024-10-31 22:16:02,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8874643874643875 [2024-10-31 22:16:02,085 INFO L175 Difference]: Start difference. First operand has 134 places, 150 transitions, 531 flow. Second operand 6 states and 623 transitions. [2024-10-31 22:16:02,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 260 transitions, 1359 flow [2024-10-31 22:16:02,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 260 transitions, 1347 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-31 22:16:02,103 INFO L231 Difference]: Finished difference. Result has 136 places, 233 transitions, 1245 flow [2024-10-31 22:16:02,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1245, PETRI_PLACES=136, PETRI_TRANSITIONS=233} [2024-10-31 22:16:02,104 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 19 predicate places. [2024-10-31 22:16:02,105 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 233 transitions, 1245 flow [2024-10-31 22:16:02,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.33333333333333) internal successors, (536), 6 states have internal predecessors, (536), 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 22:16:02,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:02,105 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 22:16:02,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:16:02,106 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:16:02,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:02,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1833776535, now seen corresponding path program 1 times [2024-10-31 22:16:02,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:02,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904471994] [2024-10-31 22:16:02,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:02,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:02,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:16:02,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:02,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904471994] [2024-10-31 22:16:02,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904471994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:02,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:02,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:16:02,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463150145] [2024-10-31 22:16:02,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:02,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:16:02,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:02,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:16:02,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:16:02,750 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2024-10-31 22:16:02,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 233 transitions, 1245 flow. Second operand has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 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 22:16:02,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:02,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2024-10-31 22:16:02,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:04,544 INFO L124 PetriNetUnfolderBase]: 3064/8860 cut-off events. [2024-10-31 22:16:04,544 INFO L125 PetriNetUnfolderBase]: For 6913/7212 co-relation queries the response was YES. [2024-10-31 22:16:04,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24607 conditions, 8860 events. 3064/8860 cut-off events. For 6913/7212 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 88155 event pairs, 525 based on Foata normal form. 14/8296 useless extension candidates. Maximal degree in co-relation 23620. Up to 4186 conditions per place. [2024-10-31 22:16:04,617 INFO L140 encePairwiseOnDemand]: 102/117 looper letters, 135 selfloop transitions, 71 changer transitions 0/301 dead transitions. [2024-10-31 22:16:04,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 301 transitions, 2101 flow [2024-10-31 22:16:04,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:16:04,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:16:04,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2024-10-31 22:16:04,620 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8319088319088319 [2024-10-31 22:16:04,620 INFO L175 Difference]: Start difference. First operand has 136 places, 233 transitions, 1245 flow. Second operand 6 states and 584 transitions. [2024-10-31 22:16:04,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 301 transitions, 2101 flow [2024-10-31 22:16:04,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 301 transitions, 2083 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-31 22:16:04,671 INFO L231 Difference]: Finished difference. Result has 146 places, 299 transitions, 2007 flow [2024-10-31 22:16:04,671 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=1227, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2007, PETRI_PLACES=146, PETRI_TRANSITIONS=299} [2024-10-31 22:16:04,672 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 29 predicate places. [2024-10-31 22:16:04,672 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 299 transitions, 2007 flow [2024-10-31 22:16:04,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 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 22:16:04,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:04,673 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:04,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:16:04,673 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:16:04,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:04,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2096755450, now seen corresponding path program 1 times [2024-10-31 22:16:04,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:04,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300919950] [2024-10-31 22:16:04,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:04,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:05,367 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:16:05,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:05,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300919950] [2024-10-31 22:16:05,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300919950] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:16:05,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918504013] [2024-10-31 22:16:05,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:05,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:16:05,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:05,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:16:05,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:16:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:05,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-31 22:16:05,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:05,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-31 22:16:05,640 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-31 22:16:05,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-10-31 22:16:05,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-31 22:16:05,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-31 22:16:05,804 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:16:05,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-31 22:16:05,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:16:05,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-31 22:16:06,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2024-10-31 22:16:06,126 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:16:06,126 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:16:06,202 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~i~1#1| 4))) (and (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| 3 .cse0)) |c_ULTIMATE.start_main_#t~nondet10#1|)) (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| 1 .cse0)) |c_ULTIMATE.start_main_#t~nondet10#1|)) (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| .cse0)) |c_ULTIMATE.start_main_#t~nondet10#1|)) (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| 2 .cse0)) |c_ULTIMATE.start_main_#t~nondet10#1|)))) is different from false [2024-10-31 22:16:06,476 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (* |c_ULTIMATE.start_main_~i~1#1| 4))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~tids~0#1.offset| 3 .cse2))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~tids~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~tids~0#1.base|) .cse1 |c_ULTIMATE.start_main_#t~nondet10#1|)))) (and (forall ((v_ArrVal_249 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~nondet10#1| (select (select (store .cse0 c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) .cse1))) (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| 2 .cse2)) |c_ULTIMATE.start_main_#t~nondet10#1|)) (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| .cse2)) |c_ULTIMATE.start_main_#t~nondet10#1|)) (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| 1 .cse2)) |c_ULTIMATE.start_main_#t~nondet10#1|)))))) is different from false [2024-10-31 22:16:12,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:16:12,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 66 [2024-10-31 22:16:12,627 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:16:12,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 34 [2024-10-31 22:16:12,646 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-10-31 22:16:12,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2024-10-31 22:16:12,655 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-10-31 22:16:12,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2024-10-31 22:16:12,665 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-10-31 22:16:12,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2024-10-31 22:16:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 2 times theorem prover too weak. 6 trivial. 1 not checked. [2024-10-31 22:16:12,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918504013] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:16:12,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:16:12,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2024-10-31 22:16:12,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78975921] [2024-10-31 22:16:12,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:16:12,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-31 22:16:12,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:12,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-31 22:16:12,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=147, Unknown=20, NotChecked=54, Total=272 [2024-10-31 22:16:13,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 117 [2024-10-31 22:16:13,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 299 transitions, 2007 flow. Second operand has 17 states, 17 states have (on average 64.29411764705883) internal successors, (1093), 17 states have internal predecessors, (1093), 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 22:16:13,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:13,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 117 [2024-10-31 22:16:13,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:17,775 INFO L124 PetriNetUnfolderBase]: 8340/18854 cut-off events. [2024-10-31 22:16:17,776 INFO L125 PetriNetUnfolderBase]: For 24174/24181 co-relation queries the response was YES. [2024-10-31 22:16:17,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58389 conditions, 18854 events. 8340/18854 cut-off events. For 24174/24181 co-relation queries the response was YES. Maximal size of possible extension queue 739. Compared 186968 event pairs, 2798 based on Foata normal form. 172/18023 useless extension candidates. Maximal degree in co-relation 56426. Up to 8310 conditions per place. [2024-10-31 22:16:18,140 INFO L140 encePairwiseOnDemand]: 103/117 looper letters, 389 selfloop transitions, 36 changer transitions 0/490 dead transitions. [2024-10-31 22:16:18,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 490 transitions, 4293 flow [2024-10-31 22:16:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:16:18,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-31 22:16:18,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 942 transitions. [2024-10-31 22:16:18,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6193293885601578 [2024-10-31 22:16:18,144 INFO L175 Difference]: Start difference. First operand has 146 places, 299 transitions, 2007 flow. Second operand 13 states and 942 transitions. [2024-10-31 22:16:18,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 490 transitions, 4293 flow [2024-10-31 22:16:18,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 490 transitions, 4153 flow, removed 70 selfloop flow, removed 0 redundant places. [2024-10-31 22:16:18,279 INFO L231 Difference]: Finished difference. Result has 157 places, 298 transitions, 1935 flow [2024-10-31 22:16:18,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=1863, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1935, PETRI_PLACES=157, PETRI_TRANSITIONS=298} [2024-10-31 22:16:18,281 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 40 predicate places. [2024-10-31 22:16:18,281 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 298 transitions, 1935 flow [2024-10-31 22:16:18,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 64.29411764705883) internal successors, (1093), 17 states have internal predecessors, (1093), 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 22:16:18,282 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:18,282 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:18,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:16:18,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12649ffe-6ca6-4e15-8b0f-fca233ac3cda/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-31 22:16:18,486 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:16:18,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:18,487 INFO L85 PathProgramCache]: Analyzing trace with hash 210699178, now seen corresponding path program 1 times [2024-10-31 22:16:18,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:18,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188784474] [2024-10-31 22:16:18,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:18,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:19,071 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:19,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:19,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188784474] [2024-10-31 22:16:19,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188784474] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:19,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:19,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-31 22:16:19,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137657171] [2024-10-31 22:16:19,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:19,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:16:19,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:19,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:16:19,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:16:19,798 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 117 [2024-10-31 22:16:19,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 298 transitions, 1935 flow. Second operand has 11 states, 11 states have (on average 79.9090909090909) internal successors, (879), 11 states have internal predecessors, (879), 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 22:16:19,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:19,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 117 [2024-10-31 22:16:19,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand