./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c --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_86105e46-b048-43d1-90c6-354272286440/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86105e46-b048-43d1-90c6-354272286440/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_86105e46-b048-43d1-90c6-354272286440/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86105e46-b048-43d1-90c6-354272286440/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86105e46-b048-43d1-90c6-354272286440/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_86105e46-b048-43d1-90c6-354272286440/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 af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:09:38,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:09:38,343 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86105e46-b048-43d1-90c6-354272286440/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:09:38,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:09:38,352 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:09:38,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:09:38,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:09:38,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:09:38,388 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:09:38,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:09:38,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:09:38,392 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:09:38,392 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:09:38,393 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:09:38,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:09:38,395 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:09:38,396 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:09:38,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:09:38,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:09:38,397 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:09:38,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:09:38,401 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:09:38,402 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:09:38,402 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:09:38,402 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:09:38,403 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:09:38,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:09:38,403 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:09:38,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:09:38,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:09:38,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:09:38,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:38,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:09:38,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:09:38,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:09:38,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:09:38,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:09:38,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:09:38,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:09:38,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:09:38,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:09:38,419 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_86105e46-b048-43d1-90c6-354272286440/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86105e46-b048-43d1-90c6-354272286440/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 [2024-10-31 22:09:38,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:09:38,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:09:38,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:09:38,828 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:09:38,829 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:09:38,830 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86105e46-b048-43d1-90c6-354272286440/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c Unable to find full path for "g++" [2024-10-31 22:09:41,099 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:09:41,364 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:09:41,365 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86105e46-b048-43d1-90c6-354272286440/sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2024-10-31 22:09:41,392 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86105e46-b048-43d1-90c6-354272286440/bin/uautomizer-verify-4GaUIPS5ZU/data/2d1d53a36/af80a97c5740445aaf7d3df91c79a818/FLAG45147e447 [2024-10-31 22:09:41,425 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86105e46-b048-43d1-90c6-354272286440/bin/uautomizer-verify-4GaUIPS5ZU/data/2d1d53a36/af80a97c5740445aaf7d3df91c79a818 [2024-10-31 22:09:41,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:09:41,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:09:41,440 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:41,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:09:41,457 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:09:41,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:41" (1/1) ... [2024-10-31 22:09:41,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@502fdc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41, skipping insertion in model container [2024-10-31 22:09:41,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:41" (1/1) ... [2024-10-31 22:09:41,511 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:09:41,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:41,893 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:09:41,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:41,979 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:09:41,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41 WrapperNode [2024-10-31 22:09:41,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:41,981 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:41,981 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:09:41,982 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:09:41,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41" (1/1) ... [2024-10-31 22:09:42,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41" (1/1) ... [2024-10-31 22:09:42,040 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2024-10-31 22:09:42,040 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:42,041 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:09:42,041 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:09:42,041 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:09:42,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41" (1/1) ... [2024-10-31 22:09:42,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41" (1/1) ... [2024-10-31 22:09:42,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41" (1/1) ... [2024-10-31 22:09:42,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41" (1/1) ... [2024-10-31 22:09:42,074 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41" (1/1) ... [2024-10-31 22:09:42,084 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41" (1/1) ... [2024-10-31 22:09:42,085 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41" (1/1) ... [2024-10-31 22:09:42,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41" (1/1) ... [2024-10-31 22:09:42,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:09:42,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:09:42,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:09:42,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:09:42,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41" (1/1) ... [2024-10-31 22:09:42,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:42,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86105e46-b048-43d1-90c6-354272286440/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:42,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86105e46-b048-43d1-90c6-354272286440/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:42,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86105e46-b048-43d1-90c6-354272286440/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:09:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:09:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:09:42,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:09:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:09:42,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:09:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:09:42,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:09:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-31 22:09:42,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-31 22:09:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:09:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:09:42,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:09:42,194 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 22:09:42,356 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:09:42,360 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:09:43,213 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:09:43,213 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:09:43,260 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:09:43,260 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 22:09:43,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:43 BoogieIcfgContainer [2024-10-31 22:09:43,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:09:43,266 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:09:43,266 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:09:43,270 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:09:43,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:09:41" (1/3) ... [2024-10-31 22:09:43,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fc3aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:09:43, skipping insertion in model container [2024-10-31 22:09:43,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:41" (2/3) ... [2024-10-31 22:09:43,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fc3aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:09:43, skipping insertion in model container [2024-10-31 22:09:43,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:43" (3/3) ... [2024-10-31 22:09:43,275 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2024-10-31 22:09:43,299 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:09:43,300 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 107 error locations. [2024-10-31 22:09:43,300 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:09:43,551 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-31 22:09:43,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 546 places, 547 transitions, 1122 flow [2024-10-31 22:09:43,980 INFO L124 PetriNetUnfolderBase]: 14/543 cut-off events. [2024-10-31 22:09:43,980 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:09:44,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 543 events. 14/543 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1774 event pairs, 0 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 413. Up to 2 conditions per place. [2024-10-31 22:09:44,012 INFO L82 GeneralOperation]: Start removeDead. Operand has 546 places, 547 transitions, 1122 flow [2024-10-31 22:09:44,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 524 places, 523 transitions, 1070 flow [2024-10-31 22:09:44,060 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:09:44,070 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;@18d51840, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:09:44,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 203 error locations. [2024-10-31 22:09:44,076 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:09:44,076 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-10-31 22:09:44,076 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:09:44,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:44,077 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] [2024-10-31 22:09:44,078 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:09:44,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:44,084 INFO L85 PathProgramCache]: Analyzing trace with hash 797117796, now seen corresponding path program 1 times [2024-10-31 22:09:44,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:44,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149897954] [2024-10-31 22:09:44,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:44,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:44,334 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 22:09:44,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:44,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149897954] [2024-10-31 22:09:44,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149897954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:44,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:44,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:44,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727644408] [2024-10-31 22:09:44,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:44,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:44,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:44,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:44,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:44,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 547 [2024-10-31 22:09:44,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 523 transitions, 1070 flow. Second operand has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 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 22:09:44,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:44,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 547 [2024-10-31 22:09:44,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:45,205 INFO L124 PetriNetUnfolderBase]: 76/868 cut-off events. [2024-10-31 22:09:45,206 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-10-31 22:09:45,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1191 conditions, 868 events. 76/868 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4827 event pairs, 66 based on Foata normal form. 145/825 useless extension candidates. Maximal degree in co-relation 1049. Up to 172 conditions per place. [2024-10-31 22:09:45,242 INFO L140 encePairwiseOnDemand]: 539/547 looper letters, 36 selfloop transitions, 2 changer transitions 1/517 dead transitions. [2024-10-31 22:09:45,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 517 transitions, 1134 flow [2024-10-31 22:09:45,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:45,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:09:45,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1544 transitions. [2024-10-31 22:09:45,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9408897014015845 [2024-10-31 22:09:45,273 INFO L175 Difference]: Start difference. First operand has 524 places, 523 transitions, 1070 flow. Second operand 3 states and 1544 transitions. [2024-10-31 22:09:45,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 517 transitions, 1134 flow [2024-10-31 22:09:45,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 517 transitions, 1118 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-31 22:09:45,295 INFO L231 Difference]: Finished difference. Result has 517 places, 516 transitions, 1044 flow [2024-10-31 22:09:45,301 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1044, PETRI_PLACES=517, PETRI_TRANSITIONS=516} [2024-10-31 22:09:45,305 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -7 predicate places. [2024-10-31 22:09:45,305 INFO L471 AbstractCegarLoop]: Abstraction has has 517 places, 516 transitions, 1044 flow [2024-10-31 22:09:45,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 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 22:09:45,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:45,311 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] [2024-10-31 22:09:45,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:09:45,311 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:09:45,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:45,312 INFO L85 PathProgramCache]: Analyzing trace with hash 186028461, now seen corresponding path program 1 times [2024-10-31 22:09:45,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:45,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033082051] [2024-10-31 22:09:45,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:45,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:45,414 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 22:09:45,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:45,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033082051] [2024-10-31 22:09:45,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033082051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:45,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:45,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:45,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421150697] [2024-10-31 22:09:45,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:45,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:45,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:45,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:45,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:45,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 547 [2024-10-31 22:09:45,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 517 places, 516 transitions, 1044 flow. Second operand has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 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 22:09:45,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:45,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 547 [2024-10-31 22:09:45,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:46,119 INFO L124 PetriNetUnfolderBase]: 76/866 cut-off events. [2024-10-31 22:09:46,121 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-10-31 22:09:46,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 866 events. 76/866 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4855 event pairs, 66 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 1061. Up to 171 conditions per place. [2024-10-31 22:09:46,164 INFO L140 encePairwiseOnDemand]: 544/547 looper letters, 35 selfloop transitions, 2 changer transitions 0/515 dead transitions. [2024-10-31 22:09:46,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 515 transitions, 1116 flow [2024-10-31 22:09:46,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:09:46,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1541 transitions. [2024-10-31 22:09:46,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9390615478366849 [2024-10-31 22:09:46,171 INFO L175 Difference]: Start difference. First operand has 517 places, 516 transitions, 1044 flow. Second operand 3 states and 1541 transitions. [2024-10-31 22:09:46,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 515 transitions, 1116 flow [2024-10-31 22:09:46,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 515 transitions, 1112 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:09:46,182 INFO L231 Difference]: Finished difference. Result has 515 places, 515 transitions, 1042 flow [2024-10-31 22:09:46,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1042, PETRI_PLACES=515, PETRI_TRANSITIONS=515} [2024-10-31 22:09:46,184 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -9 predicate places. [2024-10-31 22:09:46,184 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 515 transitions, 1042 flow [2024-10-31 22:09:46,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 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 22:09:46,186 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:46,187 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 22:09:46,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:09:46,187 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:09:46,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:46,189 INFO L85 PathProgramCache]: Analyzing trace with hash 912243120, now seen corresponding path program 1 times [2024-10-31 22:09:46,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:46,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114619349] [2024-10-31 22:09:46,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:46,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:46,263 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 22:09:46,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:46,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114619349] [2024-10-31 22:09:46,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114619349] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:46,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:46,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:46,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957171506] [2024-10-31 22:09:46,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:46,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:46,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:46,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:46,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:46,464 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 547 [2024-10-31 22:09:46,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 515 transitions, 1042 flow. Second operand has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 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 22:09:46,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:46,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 547 [2024-10-31 22:09:46,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:46,946 INFO L124 PetriNetUnfolderBase]: 76/793 cut-off events. [2024-10-31 22:09:46,946 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-10-31 22:09:46,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 997 conditions, 793 events. 76/793 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4246 event pairs, 66 based on Foata normal form. 0/633 useless extension candidates. Maximal degree in co-relation 960. Up to 172 conditions per place. [2024-10-31 22:09:46,981 INFO L140 encePairwiseOnDemand]: 544/547 looper letters, 36 selfloop transitions, 2 changer transitions 0/514 dead transitions. [2024-10-31 22:09:46,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 514 transitions, 1116 flow [2024-10-31 22:09:46,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:46,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:09:46,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1539 transitions. [2024-10-31 22:09:46,986 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9378427787934186 [2024-10-31 22:09:46,986 INFO L175 Difference]: Start difference. First operand has 515 places, 515 transitions, 1042 flow. Second operand 3 states and 1539 transitions. [2024-10-31 22:09:46,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 514 transitions, 1116 flow [2024-10-31 22:09:46,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 514 transitions, 1112 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:09:46,996 INFO L231 Difference]: Finished difference. Result has 514 places, 514 transitions, 1040 flow [2024-10-31 22:09:46,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1040, PETRI_PLACES=514, PETRI_TRANSITIONS=514} [2024-10-31 22:09:46,999 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -10 predicate places. [2024-10-31 22:09:46,999 INFO L471 AbstractCegarLoop]: Abstraction has has 514 places, 514 transitions, 1040 flow [2024-10-31 22:09:47,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 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 22:09:47,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:47,002 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:47,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:09:47,002 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:09:47,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:47,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1256833865, now seen corresponding path program 1 times [2024-10-31 22:09:47,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:47,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404200395] [2024-10-31 22:09:47,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:47,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:47,090 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 22:09:47,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:47,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404200395] [2024-10-31 22:09:47,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404200395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:47,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:47,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:47,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385334588] [2024-10-31 22:09:47,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:47,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:47,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:47,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:47,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:47,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 547 [2024-10-31 22:09:47,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 514 transitions, 1040 flow. Second operand has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 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 22:09:47,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:47,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 547 [2024-10-31 22:09:47,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:47,548 INFO L124 PetriNetUnfolderBase]: 76/720 cut-off events. [2024-10-31 22:09:47,549 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-10-31 22:09:47,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 720 events. 76/720 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3578 event pairs, 66 based on Foata normal form. 0/586 useless extension candidates. Maximal degree in co-relation 857. Up to 171 conditions per place. [2024-10-31 22:09:47,573 INFO L140 encePairwiseOnDemand]: 544/547 looper letters, 35 selfloop transitions, 2 changer transitions 0/513 dead transitions. [2024-10-31 22:09:47,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 513 transitions, 1112 flow [2024-10-31 22:09:47,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:47,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:09:47,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1541 transitions. [2024-10-31 22:09:47,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9390615478366849 [2024-10-31 22:09:47,577 INFO L175 Difference]: Start difference. First operand has 514 places, 514 transitions, 1040 flow. Second operand 3 states and 1541 transitions. [2024-10-31 22:09:47,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 513 transitions, 1112 flow [2024-10-31 22:09:47,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 513 transitions, 1108 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:09:47,587 INFO L231 Difference]: Finished difference. Result has 513 places, 513 transitions, 1038 flow [2024-10-31 22:09:47,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1038, PETRI_PLACES=513, PETRI_TRANSITIONS=513} [2024-10-31 22:09:47,588 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -11 predicate places. [2024-10-31 22:09:47,589 INFO L471 AbstractCegarLoop]: Abstraction has has 513 places, 513 transitions, 1038 flow [2024-10-31 22:09:47,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 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 22:09:47,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:47,590 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 22:09:47,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:09:47,591 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:09:47,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:47,591 INFO L85 PathProgramCache]: Analyzing trace with hash 19328405, now seen corresponding path program 1 times [2024-10-31 22:09:47,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:47,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662397988] [2024-10-31 22:09:47,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:47,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:47,642 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 22:09:47,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:47,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662397988] [2024-10-31 22:09:47,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662397988] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:47,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:47,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:47,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378822144] [2024-10-31 22:09:47,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:47,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:47,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:47,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:47,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:47,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 547 [2024-10-31 22:09:47,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 513 transitions, 1038 flow. Second operand has 3 states, 3 states have (on average 522.3333333333334) internal successors, (1567), 3 states have internal predecessors, (1567), 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 22:09:47,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:47,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 547 [2024-10-31 22:09:47,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:48,720 INFO L124 PetriNetUnfolderBase]: 102/3430 cut-off events. [2024-10-31 22:09:48,720 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-31 22:09:48,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3595 conditions, 3430 events. 102/3430 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 31084 event pairs, 51 based on Foata normal form. 0/2582 useless extension candidates. Maximal degree in co-relation 3544. Up to 144 conditions per place. [2024-10-31 22:09:48,819 INFO L140 encePairwiseOnDemand]: 544/547 looper letters, 15 selfloop transitions, 2 changer transitions 0/512 dead transitions. [2024-10-31 22:09:48,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 512 transitions, 1070 flow [2024-10-31 22:09:48,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:48,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:09:48,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1581 transitions. [2024-10-31 22:09:48,823 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9634369287020109 [2024-10-31 22:09:48,824 INFO L175 Difference]: Start difference. First operand has 513 places, 513 transitions, 1038 flow. Second operand 3 states and 1581 transitions. [2024-10-31 22:09:48,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 512 transitions, 1070 flow [2024-10-31 22:09:48,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 512 transitions, 1066 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:09:48,834 INFO L231 Difference]: Finished difference. Result has 512 places, 512 transitions, 1036 flow [2024-10-31 22:09:48,835 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1036, PETRI_PLACES=512, PETRI_TRANSITIONS=512} [2024-10-31 22:09:48,836 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -12 predicate places. [2024-10-31 22:09:48,836 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 512 transitions, 1036 flow [2024-10-31 22:09:48,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 522.3333333333334) internal successors, (1567), 3 states have internal predecessors, (1567), 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 22:09:48,838 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:48,838 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:48,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:09:48,839 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:09:48,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:48,839 INFO L85 PathProgramCache]: Analyzing trace with hash 333175722, now seen corresponding path program 1 times [2024-10-31 22:09:48,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:48,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000321667] [2024-10-31 22:09:48,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:48,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:48,883 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 22:09:48,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:48,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000321667] [2024-10-31 22:09:48,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000321667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:48,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:48,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:48,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642451275] [2024-10-31 22:09:48,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:48,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:48,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:48,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:48,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:49,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 547 [2024-10-31 22:09:49,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 512 transitions, 1036 flow. Second operand has 3 states, 3 states have (on average 471.0) internal successors, (1413), 3 states have internal predecessors, (1413), 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 22:09:49,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:49,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 547 [2024-10-31 22:09:49,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:49,486 INFO L124 PetriNetUnfolderBase]: 121/846 cut-off events. [2024-10-31 22:09:49,487 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:09:49,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1244 conditions, 846 events. 121/846 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4948 event pairs, 90 based on Foata normal form. 0/723 useless extension candidates. Maximal degree in co-relation 1186. Up to 228 conditions per place. [2024-10-31 22:09:49,517 INFO L140 encePairwiseOnDemand]: 514/547 looper letters, 41 selfloop transitions, 15 changer transitions 0/498 dead transitions. [2024-10-31 22:09:49,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 498 transitions, 1123 flow [2024-10-31 22:09:49,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:49,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:09:49,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1484 transitions. [2024-10-31 22:09:49,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9043266301035954 [2024-10-31 22:09:49,522 INFO L175 Difference]: Start difference. First operand has 512 places, 512 transitions, 1036 flow. Second operand 3 states and 1484 transitions. [2024-10-31 22:09:49,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 498 transitions, 1123 flow [2024-10-31 22:09:49,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 498 transitions, 1119 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:09:49,536 INFO L231 Difference]: Finished difference. Result has 495 places, 495 transitions, 1045 flow [2024-10-31 22:09:49,538 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1045, PETRI_PLACES=495, PETRI_TRANSITIONS=495} [2024-10-31 22:09:49,538 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -29 predicate places. [2024-10-31 22:09:49,539 INFO L471 AbstractCegarLoop]: Abstraction has has 495 places, 495 transitions, 1045 flow [2024-10-31 22:09:49,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.0) internal successors, (1413), 3 states have internal predecessors, (1413), 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 22:09:49,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:49,541 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:49,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:09:49,541 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:09:49,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:49,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1940640843, now seen corresponding path program 1 times [2024-10-31 22:09:49,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:49,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93920507] [2024-10-31 22:09:49,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:49,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:49,587 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 22:09:49,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:49,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93920507] [2024-10-31 22:09:49,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93920507] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:49,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:49,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:49,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204594875] [2024-10-31 22:09:49,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:49,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:49,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:49,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:49,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:49,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 547 [2024-10-31 22:09:49,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 495 transitions, 1045 flow. Second operand has 3 states, 3 states have (on average 474.0) internal successors, (1422), 3 states have internal predecessors, (1422), 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 22:09:49,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:49,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 547 [2024-10-31 22:09:49,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:50,121 INFO L124 PetriNetUnfolderBase]: 121/830 cut-off events. [2024-10-31 22:09:50,121 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-10-31 22:09:50,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1211 conditions, 830 events. 121/830 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4984 event pairs, 90 based on Foata normal form. 0/725 useless extension candidates. Maximal degree in co-relation 1066. Up to 226 conditions per place. [2024-10-31 22:09:50,150 INFO L140 encePairwiseOnDemand]: 515/547 looper letters, 39 selfloop transitions, 15 changer transitions 0/482 dead transitions. [2024-10-31 22:09:50,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 482 transitions, 1130 flow [2024-10-31 22:09:50,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:50,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:09:50,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1490 transitions. [2024-10-31 22:09:50,153 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9079829372333943 [2024-10-31 22:09:50,153 INFO L175 Difference]: Start difference. First operand has 495 places, 495 transitions, 1045 flow. Second operand 3 states and 1490 transitions. [2024-10-31 22:09:50,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 482 transitions, 1130 flow [2024-10-31 22:09:50,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 482 transitions, 1115 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:09:50,163 INFO L231 Difference]: Finished difference. Result has 480 places, 479 transitions, 1045 flow [2024-10-31 22:09:50,164 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1045, PETRI_PLACES=480, PETRI_TRANSITIONS=479} [2024-10-31 22:09:50,165 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -44 predicate places. [2024-10-31 22:09:50,165 INFO L471 AbstractCegarLoop]: Abstraction has has 480 places, 479 transitions, 1045 flow [2024-10-31 22:09:50,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 474.0) internal successors, (1422), 3 states have internal predecessors, (1422), 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 22:09:50,167 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:50,168 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:50,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:09:50,168 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:09:50,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:50,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1954910513, now seen corresponding path program 1 times [2024-10-31 22:09:50,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:50,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888118026] [2024-10-31 22:09:50,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:50,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:50,246 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 22:09:50,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:50,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888118026] [2024-10-31 22:09:50,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888118026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:50,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:50,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:50,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794383638] [2024-10-31 22:09:50,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:50,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:50,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:50,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:50,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:50,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 547 [2024-10-31 22:09:50,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 479 transitions, 1045 flow. Second operand has 3 states, 3 states have (on average 471.0) internal successors, (1413), 3 states have internal predecessors, (1413), 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 22:09:50,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:50,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 547 [2024-10-31 22:09:50,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:50,858 INFO L124 PetriNetUnfolderBase]: 128/1092 cut-off events. [2024-10-31 22:09:50,859 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-10-31 22:09:50,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1506 conditions, 1092 events. 128/1092 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6933 event pairs, 21 based on Foata normal form. 0/973 useless extension candidates. Maximal degree in co-relation 1271. Up to 232 conditions per place. [2024-10-31 22:09:50,892 INFO L140 encePairwiseOnDemand]: 513/547 looper letters, 44 selfloop transitions, 16 changer transitions 0/469 dead transitions. [2024-10-31 22:09:50,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 469 transitions, 1151 flow [2024-10-31 22:09:50,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:50,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:09:50,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1488 transitions. [2024-10-31 22:09:50,896 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.906764168190128 [2024-10-31 22:09:50,897 INFO L175 Difference]: Start difference. First operand has 480 places, 479 transitions, 1045 flow. Second operand 3 states and 1488 transitions. [2024-10-31 22:09:50,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 469 transitions, 1151 flow [2024-10-31 22:09:50,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 469 transitions, 1136 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:09:50,907 INFO L231 Difference]: Finished difference. Result has 464 places, 463 transitions, 1050 flow [2024-10-31 22:09:50,908 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1050, PETRI_PLACES=464, PETRI_TRANSITIONS=463} [2024-10-31 22:09:50,909 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -60 predicate places. [2024-10-31 22:09:50,909 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 463 transitions, 1050 flow [2024-10-31 22:09:50,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.0) internal successors, (1413), 3 states have internal predecessors, (1413), 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 22:09:50,911 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:50,911 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:50,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:09:50,911 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:09:50,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:50,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1768258167, now seen corresponding path program 1 times [2024-10-31 22:09:50,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:50,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942330443] [2024-10-31 22:09:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:50,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:50,984 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 22:09:50,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:50,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942330443] [2024-10-31 22:09:50,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942330443] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:50,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:50,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:50,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001515852] [2024-10-31 22:09:50,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:50,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:50,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:50,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:50,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:51,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 520 out of 547 [2024-10-31 22:09:51,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 463 transitions, 1050 flow. Second operand has 4 states, 4 states have (on average 521.25) internal successors, (2085), 4 states have internal predecessors, (2085), 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 22:09:51,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:51,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 520 of 547 [2024-10-31 22:09:51,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:51,300 INFO L124 PetriNetUnfolderBase]: 12/791 cut-off events. [2024-10-31 22:09:51,300 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-31 22:09:51,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 928 conditions, 791 events. 12/791 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3610 event pairs, 0 based on Foata normal form. 0/692 useless extension candidates. Maximal degree in co-relation 657. Up to 26 conditions per place. [2024-10-31 22:09:51,318 INFO L140 encePairwiseOnDemand]: 541/547 looper letters, 19 selfloop transitions, 5 changer transitions 0/468 dead transitions. [2024-10-31 22:09:51,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 468 transitions, 1108 flow [2024-10-31 22:09:51,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:09:51,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:09:51,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2625 transitions. [2024-10-31 22:09:51,324 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9597806215722121 [2024-10-31 22:09:51,325 INFO L175 Difference]: Start difference. First operand has 464 places, 463 transitions, 1050 flow. Second operand 5 states and 2625 transitions. [2024-10-31 22:09:51,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 468 transitions, 1108 flow [2024-10-31 22:09:51,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 468 transitions, 1092 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:09:51,335 INFO L231 Difference]: Finished difference. Result has 471 places, 467 transitions, 1072 flow [2024-10-31 22:09:51,336 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1072, PETRI_PLACES=471, PETRI_TRANSITIONS=467} [2024-10-31 22:09:51,337 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -53 predicate places. [2024-10-31 22:09:51,337 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 467 transitions, 1072 flow [2024-10-31 22:09:51,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 521.25) internal successors, (2085), 4 states have internal predecessors, (2085), 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 22:09:51,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:51,339 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:51,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:09:51,340 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:09:51,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:51,340 INFO L85 PathProgramCache]: Analyzing trace with hash -201026761, now seen corresponding path program 1 times [2024-10-31 22:09:51,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:51,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566169912] [2024-10-31 22:09:51,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:51,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:51,384 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 22:09:51,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:51,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566169912] [2024-10-31 22:09:51,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566169912] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:51,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:51,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:51,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458115134] [2024-10-31 22:09:51,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:51,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:51,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:51,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:51,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:51,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 547 [2024-10-31 22:09:51,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 467 transitions, 1072 flow. Second operand has 3 states, 3 states have (on average 474.0) internal successors, (1422), 3 states have internal predecessors, (1422), 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 22:09:51,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:51,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 547 [2024-10-31 22:09:51,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:52,069 INFO L124 PetriNetUnfolderBase]: 208/1557 cut-off events. [2024-10-31 22:09:52,070 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-10-31 22:09:52,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2203 conditions, 1557 events. 208/1557 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11586 event pairs, 35 based on Foata normal form. 1/1441 useless extension candidates. Maximal degree in co-relation 1733. Up to 380 conditions per place. [2024-10-31 22:09:52,112 INFO L140 encePairwiseOnDemand]: 515/547 looper letters, 40 selfloop transitions, 15 changer transitions 10/458 dead transitions. [2024-10-31 22:09:52,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 458 transitions, 1175 flow [2024-10-31 22:09:52,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:52,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:09:52,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1493 transitions. [2024-10-31 22:09:52,118 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9098110907982937 [2024-10-31 22:09:52,118 INFO L175 Difference]: Start difference. First operand has 471 places, 467 transitions, 1072 flow. Second operand 3 states and 1493 transitions. [2024-10-31 22:09:52,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 458 transitions, 1175 flow [2024-10-31 22:09:52,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 458 transitions, 1175 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:09:52,130 INFO L231 Difference]: Finished difference. Result has 457 places, 441 transitions, 1066 flow [2024-10-31 22:09:52,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1066, PETRI_PLACES=457, PETRI_TRANSITIONS=441} [2024-10-31 22:09:52,131 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -67 predicate places. [2024-10-31 22:09:52,132 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 441 transitions, 1066 flow [2024-10-31 22:09:52,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 474.0) internal successors, (1422), 3 states have internal predecessors, (1422), 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 22:09:52,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:52,133 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:52,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:09:52,134 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:09:52,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:52,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2059482231, now seen corresponding path program 1 times [2024-10-31 22:09:52,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:52,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903940576] [2024-10-31 22:09:52,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:52,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:52,194 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 22:09:52,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:52,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903940576] [2024-10-31 22:09:52,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903940576] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:52,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:52,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:52,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813998474] [2024-10-31 22:09:52,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:52,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:52,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:52,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:52,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:52,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 519 out of 547 [2024-10-31 22:09:52,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 441 transitions, 1066 flow. Second operand has 3 states, 3 states have (on average 520.3333333333334) internal successors, (1561), 3 states have internal predecessors, (1561), 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 22:09:52,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:52,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 519 of 547 [2024-10-31 22:09:52,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:55,889 INFO L124 PetriNetUnfolderBase]: 751/14488 cut-off events. [2024-10-31 22:09:55,890 INFO L125 PetriNetUnfolderBase]: For 439/439 co-relation queries the response was YES. [2024-10-31 22:09:56,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18474 conditions, 14488 events. 751/14488 cut-off events. For 439/439 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 189683 event pairs, 349 based on Foata normal form. 0/12919 useless extension candidates. Maximal degree in co-relation 14026. Up to 1015 conditions per place. [2024-10-31 22:09:56,148 INFO L140 encePairwiseOnDemand]: 539/547 looper letters, 19 selfloop transitions, 4 changer transitions 0/444 dead transitions. [2024-10-31 22:09:56,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 444 transitions, 1121 flow [2024-10-31 22:09:56,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:56,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:09:56,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1584 transitions. [2024-10-31 22:09:56,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9652650822669104 [2024-10-31 22:09:56,153 INFO L175 Difference]: Start difference. First operand has 457 places, 441 transitions, 1066 flow. Second operand 3 states and 1584 transitions. [2024-10-31 22:09:56,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 444 transitions, 1121 flow [2024-10-31 22:09:56,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 444 transitions, 1106 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:09:56,177 INFO L231 Difference]: Finished difference. Result has 445 places, 441 transitions, 1071 flow [2024-10-31 22:09:56,178 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1043, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1071, PETRI_PLACES=445, PETRI_TRANSITIONS=441} [2024-10-31 22:09:56,180 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -79 predicate places. [2024-10-31 22:09:56,181 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 441 transitions, 1071 flow [2024-10-31 22:09:56,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 520.3333333333334) internal successors, (1561), 3 states have internal predecessors, (1561), 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 22:09:56,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:56,182 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:56,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:09:56,185 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:09:56,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:56,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1247581148, now seen corresponding path program 1 times [2024-10-31 22:09:56,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:56,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947583519] [2024-10-31 22:09:56,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:56,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:56,279 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 22:09:56,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:56,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947583519] [2024-10-31 22:09:56,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947583519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:56,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:56,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:56,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081942338] [2024-10-31 22:09:56,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:56,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:56,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:56,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:56,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:56,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 547 [2024-10-31 22:09:56,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 441 transitions, 1071 flow. Second operand has 3 states, 3 states have (on average 505.0) internal successors, (1515), 3 states have internal predecessors, (1515), 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 22:09:56,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:56,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 547 [2024-10-31 22:09:56,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:09:57,883 INFO L124 PetriNetUnfolderBase]: 365/4355 cut-off events. [2024-10-31 22:09:57,884 INFO L125 PetriNetUnfolderBase]: For 167/179 co-relation queries the response was YES. [2024-10-31 22:09:57,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6095 conditions, 4355 events. 365/4355 cut-off events. For 167/179 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 42937 event pairs, 226 based on Foata normal form. 0/3926 useless extension candidates. Maximal degree in co-relation 4185. Up to 528 conditions per place. [2024-10-31 22:09:57,963 INFO L140 encePairwiseOnDemand]: 544/547 looper letters, 37 selfloop transitions, 2 changer transitions 0/443 dead transitions. [2024-10-31 22:09:57,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 443 transitions, 1156 flow [2024-10-31 22:09:57,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:57,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:09:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1545 transitions. [2024-10-31 22:09:57,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9414990859232175 [2024-10-31 22:09:57,966 INFO L175 Difference]: Start difference. First operand has 445 places, 441 transitions, 1071 flow. Second operand 3 states and 1545 transitions. [2024-10-31 22:09:57,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 443 transitions, 1156 flow [2024-10-31 22:09:57,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 443 transitions, 1156 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:09:57,977 INFO L231 Difference]: Finished difference. Result has 446 places, 440 transitions, 1073 flow [2024-10-31 22:09:57,978 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1069, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1073, PETRI_PLACES=446, PETRI_TRANSITIONS=440} [2024-10-31 22:09:57,979 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -78 predicate places. [2024-10-31 22:09:57,979 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 440 transitions, 1073 flow [2024-10-31 22:09:57,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 505.0) internal successors, (1515), 3 states have internal predecessors, (1515), 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 22:09:57,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:09:57,981 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:57,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:09:57,981 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:09:57,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:57,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1627907548, now seen corresponding path program 1 times [2024-10-31 22:09:57,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:57,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521549950] [2024-10-31 22:09:57,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:57,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:58,064 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 22:09:58,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:58,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521549950] [2024-10-31 22:09:58,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521549950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:58,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:58,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:58,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851226666] [2024-10-31 22:09:58,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:58,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:58,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:58,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:58,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:58,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 547 [2024-10-31 22:09:58,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 440 transitions, 1073 flow. Second operand has 3 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 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 22:09:58,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:09:58,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 547 [2024-10-31 22:09:58,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:00,232 INFO L124 PetriNetUnfolderBase]: 692/5707 cut-off events. [2024-10-31 22:10:00,232 INFO L125 PetriNetUnfolderBase]: For 586/594 co-relation queries the response was YES. [2024-10-31 22:10:00,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8572 conditions, 5707 events. 692/5707 cut-off events. For 586/594 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 60458 event pairs, 499 based on Foata normal form. 0/5177 useless extension candidates. Maximal degree in co-relation 8263. Up to 1234 conditions per place. [2024-10-31 22:10:00,464 INFO L140 encePairwiseOnDemand]: 544/547 looper letters, 36 selfloop transitions, 2 changer transitions 0/442 dead transitions. [2024-10-31 22:10:00,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 442 transitions, 1156 flow [2024-10-31 22:10:00,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:00,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:00,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1547 transitions. [2024-10-31 22:10:00,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9427178549664839 [2024-10-31 22:10:00,468 INFO L175 Difference]: Start difference. First operand has 446 places, 440 transitions, 1073 flow. Second operand 3 states and 1547 transitions. [2024-10-31 22:10:00,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 442 transitions, 1156 flow [2024-10-31 22:10:00,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 442 transitions, 1152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:00,480 INFO L231 Difference]: Finished difference. Result has 445 places, 439 transitions, 1071 flow [2024-10-31 22:10:00,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1067, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1071, PETRI_PLACES=445, PETRI_TRANSITIONS=439} [2024-10-31 22:10:00,482 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -79 predicate places. [2024-10-31 22:10:00,482 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 439 transitions, 1071 flow [2024-10-31 22:10:00,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 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 22:10:00,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:00,483 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:00,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:10:00,484 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:10:00,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:00,484 INFO L85 PathProgramCache]: Analyzing trace with hash -425638923, now seen corresponding path program 1 times [2024-10-31 22:10:00,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:00,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424877829] [2024-10-31 22:10:00,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:00,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:00,527 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 22:10:00,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:00,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424877829] [2024-10-31 22:10:00,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424877829] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:00,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:00,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:00,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393868683] [2024-10-31 22:10:00,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:00,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:00,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:00,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:00,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:00,665 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 547 [2024-10-31 22:10:00,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 439 transitions, 1071 flow. Second operand has 3 states, 3 states have (on average 506.0) internal successors, (1518), 3 states have internal predecessors, (1518), 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 22:10:00,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:00,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 547 [2024-10-31 22:10:00,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:01,974 INFO L124 PetriNetUnfolderBase]: 365/4331 cut-off events. [2024-10-31 22:10:01,975 INFO L125 PetriNetUnfolderBase]: For 179/188 co-relation queries the response was YES. [2024-10-31 22:10:02,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6096 conditions, 4331 events. 365/4331 cut-off events. For 179/188 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 42637 event pairs, 226 based on Foata normal form. 0/3926 useless extension candidates. Maximal degree in co-relation 5064. Up to 528 conditions per place. [2024-10-31 22:10:02,099 INFO L140 encePairwiseOnDemand]: 544/547 looper letters, 37 selfloop transitions, 2 changer transitions 0/441 dead transitions. [2024-10-31 22:10:02,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 441 transitions, 1156 flow [2024-10-31 22:10:02,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:02,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:02,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1545 transitions. [2024-10-31 22:10:02,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9414990859232175 [2024-10-31 22:10:02,103 INFO L175 Difference]: Start difference. First operand has 445 places, 439 transitions, 1071 flow. Second operand 3 states and 1545 transitions. [2024-10-31 22:10:02,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 441 transitions, 1156 flow [2024-10-31 22:10:02,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 441 transitions, 1152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:02,216 INFO L231 Difference]: Finished difference. Result has 444 places, 438 transitions, 1069 flow [2024-10-31 22:10:02,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1065, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1069, PETRI_PLACES=444, PETRI_TRANSITIONS=438} [2024-10-31 22:10:02,219 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -80 predicate places. [2024-10-31 22:10:02,219 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 438 transitions, 1069 flow [2024-10-31 22:10:02,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 506.0) internal successors, (1518), 3 states have internal predecessors, (1518), 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 22:10:02,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:02,220 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:02,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:10:02,220 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:10:02,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:02,221 INFO L85 PathProgramCache]: Analyzing trace with hash 610222375, now seen corresponding path program 1 times [2024-10-31 22:10:02,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:02,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286628287] [2024-10-31 22:10:02,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:02,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:02,285 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 22:10:02,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:02,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286628287] [2024-10-31 22:10:02,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286628287] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:02,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:02,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:02,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470217485] [2024-10-31 22:10:02,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:02,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:02,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:02,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:02,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:02,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 547 [2024-10-31 22:10:02,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 438 transitions, 1069 flow. Second operand has 3 states, 3 states have (on average 505.3333333333333) internal successors, (1516), 3 states have internal predecessors, (1516), 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 22:10:02,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:02,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 547 [2024-10-31 22:10:02,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:03,596 INFO L124 PetriNetUnfolderBase]: 462/4381 cut-off events. [2024-10-31 22:10:03,596 INFO L125 PetriNetUnfolderBase]: For 474/477 co-relation queries the response was YES. [2024-10-31 22:10:03,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6384 conditions, 4381 events. 462/4381 cut-off events. For 474/477 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 43368 event pairs, 314 based on Foata normal form. 0/3978 useless extension candidates. Maximal degree in co-relation 6125. Up to 853 conditions per place. [2024-10-31 22:10:03,686 INFO L140 encePairwiseOnDemand]: 544/547 looper letters, 38 selfloop transitions, 2 changer transitions 0/440 dead transitions. [2024-10-31 22:10:03,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 440 transitions, 1156 flow [2024-10-31 22:10:03,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:03,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:03,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1545 transitions. [2024-10-31 22:10:03,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9414990859232175 [2024-10-31 22:10:03,690 INFO L175 Difference]: Start difference. First operand has 444 places, 438 transitions, 1069 flow. Second operand 3 states and 1545 transitions. [2024-10-31 22:10:03,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 440 transitions, 1156 flow [2024-10-31 22:10:03,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 440 transitions, 1152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:03,702 INFO L231 Difference]: Finished difference. Result has 443 places, 437 transitions, 1067 flow [2024-10-31 22:10:03,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1063, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1067, PETRI_PLACES=443, PETRI_TRANSITIONS=437} [2024-10-31 22:10:03,704 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -81 predicate places. [2024-10-31 22:10:03,704 INFO L471 AbstractCegarLoop]: Abstraction has has 443 places, 437 transitions, 1067 flow [2024-10-31 22:10:03,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 505.3333333333333) internal successors, (1516), 3 states have internal predecessors, (1516), 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 22:10:03,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:03,706 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:03,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:10:03,706 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:10:03,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:03,707 INFO L85 PathProgramCache]: Analyzing trace with hash 615909789, now seen corresponding path program 1 times [2024-10-31 22:10:03,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:03,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829662636] [2024-10-31 22:10:03,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:03,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:03,749 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 22:10:03,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:03,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829662636] [2024-10-31 22:10:03,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829662636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:03,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:03,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:03,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368646709] [2024-10-31 22:10:03,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:03,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:03,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:03,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:03,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:03,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 547 [2024-10-31 22:10:03,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 437 transitions, 1067 flow. Second operand has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 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 22:10:03,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:03,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 547 [2024-10-31 22:10:03,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:05,820 INFO L124 PetriNetUnfolderBase]: 704/5884 cut-off events. [2024-10-31 22:10:05,820 INFO L125 PetriNetUnfolderBase]: For 595/601 co-relation queries the response was YES. [2024-10-31 22:10:05,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8825 conditions, 5884 events. 704/5884 cut-off events. For 595/601 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 62238 event pairs, 499 based on Foata normal form. 0/5374 useless extension candidates. Maximal degree in co-relation 7629. Up to 1234 conditions per place. [2024-10-31 22:10:05,957 INFO L140 encePairwiseOnDemand]: 544/547 looper letters, 36 selfloop transitions, 2 changer transitions 0/439 dead transitions. [2024-10-31 22:10:05,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 439 transitions, 1150 flow [2024-10-31 22:10:05,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:05,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:05,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1547 transitions. [2024-10-31 22:10:05,962 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9427178549664839 [2024-10-31 22:10:05,962 INFO L175 Difference]: Start difference. First operand has 443 places, 437 transitions, 1067 flow. Second operand 3 states and 1547 transitions. [2024-10-31 22:10:05,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 439 transitions, 1150 flow [2024-10-31 22:10:05,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 439 transitions, 1146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:05,977 INFO L231 Difference]: Finished difference. Result has 442 places, 436 transitions, 1065 flow [2024-10-31 22:10:05,978 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1061, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1065, PETRI_PLACES=442, PETRI_TRANSITIONS=436} [2024-10-31 22:10:05,978 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -82 predicate places. [2024-10-31 22:10:05,978 INFO L471 AbstractCegarLoop]: Abstraction has has 442 places, 436 transitions, 1065 flow [2024-10-31 22:10:05,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 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 22:10:05,980 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:05,980 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:05,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:10:05,981 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:10:05,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:05,981 INFO L85 PathProgramCache]: Analyzing trace with hash 32612688, now seen corresponding path program 1 times [2024-10-31 22:10:05,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:05,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948647417] [2024-10-31 22:10:05,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:05,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:06,032 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 22:10:06,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:06,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948647417] [2024-10-31 22:10:06,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948647417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:06,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:06,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:06,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976485589] [2024-10-31 22:10:06,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:06,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:06,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:06,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:06,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:06,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 547 [2024-10-31 22:10:06,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 436 transitions, 1065 flow. Second operand has 3 states, 3 states have (on average 507.0) internal successors, (1521), 3 states have internal predecessors, (1521), 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 22:10:06,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:06,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 547 [2024-10-31 22:10:06,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:07,502 INFO L124 PetriNetUnfolderBase]: 365/4294 cut-off events. [2024-10-31 22:10:07,502 INFO L125 PetriNetUnfolderBase]: For 179/188 co-relation queries the response was YES. [2024-10-31 22:10:07,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6059 conditions, 4294 events. 365/4294 cut-off events. For 179/188 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 42076 event pairs, 226 based on Foata normal form. 0/3926 useless extension candidates. Maximal degree in co-relation 5171. Up to 528 conditions per place. [2024-10-31 22:10:07,564 INFO L140 encePairwiseOnDemand]: 544/547 looper letters, 37 selfloop transitions, 2 changer transitions 0/438 dead transitions. [2024-10-31 22:10:07,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 438 transitions, 1150 flow [2024-10-31 22:10:07,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:07,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1545 transitions. [2024-10-31 22:10:07,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9414990859232175 [2024-10-31 22:10:07,568 INFO L175 Difference]: Start difference. First operand has 442 places, 436 transitions, 1065 flow. Second operand 3 states and 1545 transitions. [2024-10-31 22:10:07,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 438 transitions, 1150 flow [2024-10-31 22:10:07,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 438 transitions, 1146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:07,578 INFO L231 Difference]: Finished difference. Result has 441 places, 435 transitions, 1063 flow [2024-10-31 22:10:07,579 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1059, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1063, PETRI_PLACES=441, PETRI_TRANSITIONS=435} [2024-10-31 22:10:07,580 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -83 predicate places. [2024-10-31 22:10:07,580 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 435 transitions, 1063 flow [2024-10-31 22:10:07,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 507.0) internal successors, (1521), 3 states have internal predecessors, (1521), 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 22:10:07,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:07,581 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:07,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:10:07,582 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:10:07,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:07,582 INFO L85 PathProgramCache]: Analyzing trace with hash -275524442, now seen corresponding path program 1 times [2024-10-31 22:10:07,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:07,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018908094] [2024-10-31 22:10:07,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:07,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:07,630 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 22:10:07,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:07,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018908094] [2024-10-31 22:10:07,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018908094] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:07,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:07,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:07,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359792223] [2024-10-31 22:10:07,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:07,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:07,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:07,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:07,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:07,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 547 [2024-10-31 22:10:07,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 435 transitions, 1063 flow. Second operand has 3 states, 3 states have (on average 506.6666666666667) internal successors, (1520), 3 states have internal predecessors, (1520), 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 22:10:07,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:07,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 547 [2024-10-31 22:10:07,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:08,480 INFO L124 PetriNetUnfolderBase]: 235/3323 cut-off events. [2024-10-31 22:10:08,480 INFO L125 PetriNetUnfolderBase]: For 300/307 co-relation queries the response was YES. [2024-10-31 22:10:08,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4541 conditions, 3323 events. 235/3323 cut-off events. For 300/307 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 30187 event pairs, 129 based on Foata normal form. 1/3029 useless extension candidates. Maximal degree in co-relation 4326. Up to 435 conditions per place. [2024-10-31 22:10:08,528 INFO L140 encePairwiseOnDemand]: 544/547 looper letters, 36 selfloop transitions, 2 changer transitions 0/437 dead transitions. [2024-10-31 22:10:08,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 437 transitions, 1146 flow [2024-10-31 22:10:08,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:08,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:08,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1547 transitions. [2024-10-31 22:10:08,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9427178549664839 [2024-10-31 22:10:08,534 INFO L175 Difference]: Start difference. First operand has 441 places, 435 transitions, 1063 flow. Second operand 3 states and 1547 transitions. [2024-10-31 22:10:08,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 437 transitions, 1146 flow [2024-10-31 22:10:08,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 437 transitions, 1142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:08,544 INFO L231 Difference]: Finished difference. Result has 440 places, 434 transitions, 1061 flow [2024-10-31 22:10:08,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1057, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1061, PETRI_PLACES=440, PETRI_TRANSITIONS=434} [2024-10-31 22:10:08,545 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -84 predicate places. [2024-10-31 22:10:08,545 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 434 transitions, 1061 flow [2024-10-31 22:10:08,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 506.6666666666667) internal successors, (1520), 3 states have internal predecessors, (1520), 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 22:10:08,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:08,547 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:08,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-31 22:10:08,547 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:10:08,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:08,548 INFO L85 PathProgramCache]: Analyzing trace with hash -307166446, now seen corresponding path program 1 times [2024-10-31 22:10:08,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:08,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276388678] [2024-10-31 22:10:08,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:08,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:08,593 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 22:10:08,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:08,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276388678] [2024-10-31 22:10:08,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276388678] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:08,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:08,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:08,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104381246] [2024-10-31 22:10:08,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:08,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:08,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:08,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:08,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:08,719 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 547 [2024-10-31 22:10:08,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 434 transitions, 1061 flow. Second operand has 3 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 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 22:10:08,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:08,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 547 [2024-10-31 22:10:08,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:10,030 INFO L124 PetriNetUnfolderBase]: 462/4321 cut-off events. [2024-10-31 22:10:10,030 INFO L125 PetriNetUnfolderBase]: For 477/480 co-relation queries the response was YES. [2024-10-31 22:10:10,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6336 conditions, 4321 events. 462/4321 cut-off events. For 477/480 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 42521 event pairs, 314 based on Foata normal form. 0/3966 useless extension candidates. Maximal degree in co-relation 5565. Up to 853 conditions per place. [2024-10-31 22:10:10,151 INFO L140 encePairwiseOnDemand]: 544/547 looper letters, 38 selfloop transitions, 2 changer transitions 0/436 dead transitions. [2024-10-31 22:10:10,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 436 transitions, 1148 flow [2024-10-31 22:10:10,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:10,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:10,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1545 transitions. [2024-10-31 22:10:10,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9414990859232175 [2024-10-31 22:10:10,154 INFO L175 Difference]: Start difference. First operand has 440 places, 434 transitions, 1061 flow. Second operand 3 states and 1545 transitions. [2024-10-31 22:10:10,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 436 transitions, 1148 flow [2024-10-31 22:10:10,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 436 transitions, 1144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:10,165 INFO L231 Difference]: Finished difference. Result has 439 places, 433 transitions, 1059 flow [2024-10-31 22:10:10,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=1055, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1059, PETRI_PLACES=439, PETRI_TRANSITIONS=433} [2024-10-31 22:10:10,166 INFO L277 CegarLoopForPetriNet]: 524 programPoint places, -85 predicate places. [2024-10-31 22:10:10,166 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 433 transitions, 1059 flow [2024-10-31 22:10:10,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 506.3333333333333) internal successors, (1519), 3 states have internal predecessors, (1519), 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 22:10:10,167 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:10,167 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:10,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-31 22:10:10,168 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 199 more)] === [2024-10-31 22:10:10,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:10,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1012173064, now seen corresponding path program 1 times [2024-10-31 22:10:10,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:10,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817814212] [2024-10-31 22:10:10,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:10,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:10,210 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 22:10:10,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:10,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817814212] [2024-10-31 22:10:10,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817814212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:10,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:10,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:10,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092216135] [2024-10-31 22:10:10,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:10,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:10,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:10,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:10,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:10,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 547 [2024-10-31 22:10:10,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 433 transitions, 1059 flow. Second operand has 3 states, 3 states have (on average 508.3333333333333) internal successors, (1525), 3 states have internal predecessors, (1525), 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 22:10:10,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:10,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 547 [2024-10-31 22:10:10,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand