./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/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_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/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_3aed6669-d62c-4002-bbe6-9971d36a9c3d/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 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:11:09,263 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:11:09,343 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:11:09,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:11:09,349 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:11:09,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:11:09,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:11:09,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:11:09,381 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:11:09,382 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:11:09,383 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:11:09,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:11:09,385 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:11:09,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:11:09,388 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:11:09,388 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:11:09,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:11:09,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:11:09,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:11:09,393 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:11:09,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:11:09,397 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:11:09,397 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:11:09,397 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:11:09,398 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:11:09,398 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:11:09,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:11:09,399 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:11:09,399 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:11:09,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:11:09,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:11:09,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:11:09,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:11:09,402 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:11:09,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:11:09,415 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:11:09,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:11:09,416 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:11:09,416 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:11:09,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:11:09,417 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:11:09,417 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_3aed6669-d62c-4002-bbe6-9971d36a9c3d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 [2024-10-31 22:11:09,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:11:09,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:11:09,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:11:09,741 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:11:09,742 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:11:09,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c Unable to find full path for "g++" [2024-10-31 22:11:11,885 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:11:12,092 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:11:12,093 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2024-10-31 22:11:12,101 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/data/343d8c63b/540ffbba66db4286b9051623e4785e3d/FLAG13c8f1078 [2024-10-31 22:11:12,467 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/data/343d8c63b/540ffbba66db4286b9051623e4785e3d [2024-10-31 22:11:12,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:11:12,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:11:12,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:11:12,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:11:12,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:11:12,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:11:12" (1/1) ... [2024-10-31 22:11:12,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@141d00c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12, skipping insertion in model container [2024-10-31 22:11:12,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:11:12" (1/1) ... [2024-10-31 22:11:12,524 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:11:12,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:11:12,799 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:11:12,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:11:12,864 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:11:12,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12 WrapperNode [2024-10-31 22:11:12,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:11:12,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:11:12,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:11:12,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:11:12,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12" (1/1) ... [2024-10-31 22:11:12,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12" (1/1) ... [2024-10-31 22:11:12,946 INFO L138 Inliner]: procedures = 25, calls = 43, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 348 [2024-10-31 22:11:12,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:11:12,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:11:12,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:11:12,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:11:12,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12" (1/1) ... [2024-10-31 22:11:12,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12" (1/1) ... [2024-10-31 22:11:12,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12" (1/1) ... [2024-10-31 22:11:12,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12" (1/1) ... [2024-10-31 22:11:13,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12" (1/1) ... [2024-10-31 22:11:13,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12" (1/1) ... [2024-10-31 22:11:13,029 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12" (1/1) ... [2024-10-31 22:11:13,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12" (1/1) ... [2024-10-31 22:11:13,044 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:11:13,046 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:11:13,046 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:11:13,046 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:11:13,047 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12" (1/1) ... [2024-10-31 22:11:13,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:11:13,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:11:13,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:11:13,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:11:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:11:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:11:13,160 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:11:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:11:13,161 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:11:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:11:13,162 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:11:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:11:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:11:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:11:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:11:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:11:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:11:13,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:11:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:11:13,167 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 22:11:13,360 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:11:13,362 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:11:14,286 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:11:14,286 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:11:14,594 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:11:14,594 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-31 22:11:14,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:14 BoogieIcfgContainer [2024-10-31 22:11:14,597 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:11:14,599 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:11:14,599 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:11:14,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:11:14,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:11:12" (1/3) ... [2024-10-31 22:11:14,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abce050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:11:14, skipping insertion in model container [2024-10-31 22:11:14,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:12" (2/3) ... [2024-10-31 22:11:14,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abce050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:11:14, skipping insertion in model container [2024-10-31 22:11:14,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:14" (3/3) ... [2024-10-31 22:11:14,608 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2024-10-31 22:11:14,628 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:11:14,629 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2024-10-31 22:11:14,629 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:11:14,774 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:11:14,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 493 places, 510 transitions, 1041 flow [2024-10-31 22:11:15,098 INFO L124 PetriNetUnfolderBase]: 27/507 cut-off events. [2024-10-31 22:11:15,099 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:11:15,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 520 conditions, 507 events. 27/507 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 632 event pairs, 0 based on Foata normal form. 0/425 useless extension candidates. Maximal degree in co-relation 428. Up to 2 conditions per place. [2024-10-31 22:11:15,110 INFO L82 GeneralOperation]: Start removeDead. Operand has 493 places, 510 transitions, 1041 flow [2024-10-31 22:11:15,122 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 449 places, 463 transitions, 944 flow [2024-10-31 22:11:15,141 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:11:15,149 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;@65c4bddf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:11:15,150 INFO L334 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2024-10-31 22:11:15,155 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:11:15,156 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-10-31 22:11:15,156 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:11:15,157 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:15,158 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] [2024-10-31 22:11:15,158 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:15,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:15,166 INFO L85 PathProgramCache]: Analyzing trace with hash 64313588, now seen corresponding path program 1 times [2024-10-31 22:11:15,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:15,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409051506] [2024-10-31 22:11:15,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:15,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:15,462 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 22:11:15,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:15,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409051506] [2024-10-31 22:11:15,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409051506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:15,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:15,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:15,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294152578] [2024-10-31 22:11:15,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:15,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:15,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:15,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:15,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:15,599 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 510 [2024-10-31 22:11:15,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 463 transitions, 944 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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 22:11:15,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:15,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 510 [2024-10-31 22:11:15,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:16,191 INFO L124 PetriNetUnfolderBase]: 101/1214 cut-off events. [2024-10-31 22:11:16,191 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-31 22:11:16,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 1214 events. 101/1214 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6484 event pairs, 51 based on Foata normal form. 12/1018 useless extension candidates. Maximal degree in co-relation 955. Up to 135 conditions per place. [2024-10-31 22:11:16,208 INFO L140 encePairwiseOnDemand]: 478/510 looper letters, 19 selfloop transitions, 2 changer transitions 9/433 dead transitions. [2024-10-31 22:11:16,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 433 transitions, 926 flow [2024-10-31 22:11:16,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:16,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1413 transitions. [2024-10-31 22:11:16,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9235294117647059 [2024-10-31 22:11:16,241 INFO L175 Difference]: Start difference. First operand has 449 places, 463 transitions, 944 flow. Second operand 3 states and 1413 transitions. [2024-10-31 22:11:16,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 433 transitions, 926 flow [2024-10-31 22:11:16,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 433 transitions, 914 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:11:16,292 INFO L231 Difference]: Finished difference. Result has 430 places, 424 transitions, 858 flow [2024-10-31 22:11:16,297 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=428, 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=858, PETRI_PLACES=430, PETRI_TRANSITIONS=424} [2024-10-31 22:11:16,302 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -19 predicate places. [2024-10-31 22:11:16,303 INFO L471 AbstractCegarLoop]: Abstraction has has 430 places, 424 transitions, 858 flow [2024-10-31 22:11:16,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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 22:11:16,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:16,306 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 22:11:16,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:11:16,306 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:16,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:16,308 INFO L85 PathProgramCache]: Analyzing trace with hash -123107398, now seen corresponding path program 1 times [2024-10-31 22:11:16,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:16,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296558628] [2024-10-31 22:11:16,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:16,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:16,390 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 22:11:16,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:16,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296558628] [2024-10-31 22:11:16,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296558628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:16,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:16,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:16,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239353106] [2024-10-31 22:11:16,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:16,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:16,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:16,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:16,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:16,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 510 [2024-10-31 22:11:16,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 424 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 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 22:11:16,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:16,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 510 [2024-10-31 22:11:16,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:16,891 INFO L124 PetriNetUnfolderBase]: 223/1237 cut-off events. [2024-10-31 22:11:16,891 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-10-31 22:11:16,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1558 conditions, 1237 events. 223/1237 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6518 event pairs, 128 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1525. Up to 299 conditions per place. [2024-10-31 22:11:16,905 INFO L140 encePairwiseOnDemand]: 502/510 looper letters, 23 selfloop transitions, 1 changer transitions 0/417 dead transitions. [2024-10-31 22:11:16,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 417 transitions, 892 flow [2024-10-31 22:11:16,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:16,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:16,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1369 transitions. [2024-10-31 22:11:16,910 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8947712418300654 [2024-10-31 22:11:16,910 INFO L175 Difference]: Start difference. First operand has 430 places, 424 transitions, 858 flow. Second operand 3 states and 1369 transitions. [2024-10-31 22:11:16,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 417 transitions, 892 flow [2024-10-31 22:11:16,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 417 transitions, 888 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:11:16,919 INFO L231 Difference]: Finished difference. Result has 414 places, 417 transitions, 842 flow [2024-10-31 22:11:16,920 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=414, PETRI_TRANSITIONS=417} [2024-10-31 22:11:16,922 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -35 predicate places. [2024-10-31 22:11:16,923 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 417 transitions, 842 flow [2024-10-31 22:11:16,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 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 22:11:16,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:16,924 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 22:11:16,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:11:16,925 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:16,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:16,927 INFO L85 PathProgramCache]: Analyzing trace with hash 573243807, now seen corresponding path program 1 times [2024-10-31 22:11:16,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:16,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584942822] [2024-10-31 22:11:16,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:16,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:17,842 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 22:11:17,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:17,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584942822] [2024-10-31 22:11:17,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584942822] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:17,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:17,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:11:17,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841418751] [2024-10-31 22:11:17,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:17,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:11:17,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:17,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:11:17,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:11:18,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 510 [2024-10-31 22:11:18,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 417 transitions, 842 flow. Second operand has 6 states, 6 states have (on average 395.5) internal successors, (2373), 6 states have internal predecessors, (2373), 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 22:11:18,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:18,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 510 [2024-10-31 22:11:18,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:18,953 INFO L124 PetriNetUnfolderBase]: 236/1331 cut-off events. [2024-10-31 22:11:18,953 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-31 22:11:18,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1807 conditions, 1331 events. 236/1331 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 7716 event pairs, 188 based on Foata normal form. 0/1150 useless extension candidates. Maximal degree in co-relation 1775. Up to 406 conditions per place. [2024-10-31 22:11:18,966 INFO L140 encePairwiseOnDemand]: 492/510 looper letters, 65 selfloop transitions, 15 changer transitions 0/414 dead transitions. [2024-10-31 22:11:18,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 414 transitions, 996 flow [2024-10-31 22:11:18,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:11:18,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:11:18,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2447 transitions. [2024-10-31 22:11:18,972 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7996732026143791 [2024-10-31 22:11:18,973 INFO L175 Difference]: Start difference. First operand has 414 places, 417 transitions, 842 flow. Second operand 6 states and 2447 transitions. [2024-10-31 22:11:18,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 414 transitions, 996 flow [2024-10-31 22:11:18,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 414 transitions, 995 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:11:18,982 INFO L231 Difference]: Finished difference. Result has 415 places, 414 transitions, 865 flow [2024-10-31 22:11:18,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=835, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=865, PETRI_PLACES=415, PETRI_TRANSITIONS=414} [2024-10-31 22:11:18,986 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -34 predicate places. [2024-10-31 22:11:18,986 INFO L471 AbstractCegarLoop]: Abstraction has has 415 places, 414 transitions, 865 flow [2024-10-31 22:11:18,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 395.5) internal successors, (2373), 6 states have internal predecessors, (2373), 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 22:11:18,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:18,988 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 22:11:18,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:11:18,989 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:18,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:18,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1149357642, now seen corresponding path program 1 times [2024-10-31 22:11:18,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:18,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587076700] [2024-10-31 22:11:18,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:18,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:19,057 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 22:11:19,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:19,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587076700] [2024-10-31 22:11:19,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587076700] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:19,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:19,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:19,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552840316] [2024-10-31 22:11:19,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:19,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:19,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:19,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:19,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:19,102 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 510 [2024-10-31 22:11:19,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 414 transitions, 865 flow. Second operand has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 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 22:11:19,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:19,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 510 [2024-10-31 22:11:19,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:19,359 INFO L124 PetriNetUnfolderBase]: 55/587 cut-off events. [2024-10-31 22:11:19,360 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:11:19,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 587 events. 55/587 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1808 event pairs, 34 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 661. Up to 77 conditions per place. [2024-10-31 22:11:19,365 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 16 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2024-10-31 22:11:19,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 413 transitions, 899 flow [2024-10-31 22:11:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:19,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:19,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1390 transitions. [2024-10-31 22:11:19,369 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9084967320261438 [2024-10-31 22:11:19,369 INFO L175 Difference]: Start difference. First operand has 415 places, 414 transitions, 865 flow. Second operand 3 states and 1390 transitions. [2024-10-31 22:11:19,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 413 transitions, 899 flow [2024-10-31 22:11:19,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 413 transitions, 869 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:11:19,379 INFO L231 Difference]: Finished difference. Result has 411 places, 413 transitions, 837 flow [2024-10-31 22:11:19,380 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=837, PETRI_PLACES=411, PETRI_TRANSITIONS=413} [2024-10-31 22:11:19,382 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -38 predicate places. [2024-10-31 22:11:19,382 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 413 transitions, 837 flow [2024-10-31 22:11:19,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 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 22:11:19,384 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:19,384 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 22:11:19,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:11:19,385 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:19,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:19,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1852644211, now seen corresponding path program 1 times [2024-10-31 22:11:19,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:19,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760892290] [2024-10-31 22:11:19,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:19,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:19,466 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 22:11:19,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:19,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760892290] [2024-10-31 22:11:19,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760892290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:19,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:19,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:19,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123674279] [2024-10-31 22:11:19,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:19,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:19,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:19,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:19,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:19,515 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 510 [2024-10-31 22:11:19,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 413 transitions, 837 flow. Second operand has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 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 22:11:19,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:19,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 510 [2024-10-31 22:11:19,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:19,718 INFO L124 PetriNetUnfolderBase]: 55/586 cut-off events. [2024-10-31 22:11:19,718 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:11:19,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 586 events. 55/586 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1712 event pairs, 34 based on Foata normal form. 0/532 useless extension candidates. Maximal degree in co-relation 647. Up to 77 conditions per place. [2024-10-31 22:11:19,723 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 16 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2024-10-31 22:11:19,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 412 transitions, 871 flow [2024-10-31 22:11:19,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:19,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:19,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1390 transitions. [2024-10-31 22:11:19,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9084967320261438 [2024-10-31 22:11:19,727 INFO L175 Difference]: Start difference. First operand has 411 places, 413 transitions, 837 flow. Second operand 3 states and 1390 transitions. [2024-10-31 22:11:19,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 412 transitions, 871 flow [2024-10-31 22:11:19,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 412 transitions, 867 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:11:19,740 INFO L231 Difference]: Finished difference. Result has 410 places, 412 transitions, 835 flow [2024-10-31 22:11:19,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=835, PETRI_PLACES=410, PETRI_TRANSITIONS=412} [2024-10-31 22:11:19,743 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -39 predicate places. [2024-10-31 22:11:19,743 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 412 transitions, 835 flow [2024-10-31 22:11:19,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 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 22:11:19,746 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:19,746 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, 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 22:11:19,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:11:19,746 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:19,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:19,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1332480732, now seen corresponding path program 1 times [2024-10-31 22:11:19,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:19,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642303087] [2024-10-31 22:11:19,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:19,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:19,855 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 22:11:19,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:19,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642303087] [2024-10-31 22:11:19,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642303087] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:19,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:19,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:19,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75429773] [2024-10-31 22:11:19,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:19,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:19,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:19,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:19,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:19,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 510 [2024-10-31 22:11:19,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 412 transitions, 835 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 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 22:11:19,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:19,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 510 [2024-10-31 22:11:19,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:20,055 INFO L124 PetriNetUnfolderBase]: 23/449 cut-off events. [2024-10-31 22:11:20,055 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:11:20,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 449 events. 23/449 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 757 event pairs, 12 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 462. Up to 35 conditions per place. [2024-10-31 22:11:20,059 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 12 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2024-10-31 22:11:20,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 411 transitions, 861 flow [2024-10-31 22:11:20,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:20,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1398 transitions. [2024-10-31 22:11:20,064 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9137254901960784 [2024-10-31 22:11:20,064 INFO L175 Difference]: Start difference. First operand has 410 places, 412 transitions, 835 flow. Second operand 3 states and 1398 transitions. [2024-10-31 22:11:20,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 411 transitions, 861 flow [2024-10-31 22:11:20,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 411 transitions, 857 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:11:20,073 INFO L231 Difference]: Finished difference. Result has 409 places, 411 transitions, 833 flow [2024-10-31 22:11:20,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=833, PETRI_PLACES=409, PETRI_TRANSITIONS=411} [2024-10-31 22:11:20,075 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -40 predicate places. [2024-10-31 22:11:20,077 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 411 transitions, 833 flow [2024-10-31 22:11:20,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 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 22:11:20,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:20,079 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, 1, 1, 1, 1, 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 22:11:20,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:11:20,079 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:20,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:20,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1889059969, now seen corresponding path program 1 times [2024-10-31 22:11:20,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:20,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846812435] [2024-10-31 22:11:20,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:20,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:20,148 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 22:11:20,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:20,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846812435] [2024-10-31 22:11:20,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846812435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:20,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:20,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:20,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261439885] [2024-10-31 22:11:20,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:20,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:20,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:20,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:20,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:20,162 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 510 [2024-10-31 22:11:20,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 411 transitions, 833 flow. Second operand has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 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 22:11:20,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:20,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 510 [2024-10-31 22:11:20,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:20,381 INFO L124 PetriNetUnfolderBase]: 23/448 cut-off events. [2024-10-31 22:11:20,381 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:11:20,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 448 events. 23/448 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 759 event pairs, 12 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 461. Up to 35 conditions per place. [2024-10-31 22:11:20,386 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 12 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2024-10-31 22:11:20,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 410 transitions, 859 flow [2024-10-31 22:11:20,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:20,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:20,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1398 transitions. [2024-10-31 22:11:20,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9137254901960784 [2024-10-31 22:11:20,391 INFO L175 Difference]: Start difference. First operand has 409 places, 411 transitions, 833 flow. Second operand 3 states and 1398 transitions. [2024-10-31 22:11:20,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 410 transitions, 859 flow [2024-10-31 22:11:20,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 410 transitions, 855 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:11:20,400 INFO L231 Difference]: Finished difference. Result has 408 places, 410 transitions, 831 flow [2024-10-31 22:11:20,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=831, PETRI_PLACES=408, PETRI_TRANSITIONS=410} [2024-10-31 22:11:20,402 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -41 predicate places. [2024-10-31 22:11:20,402 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 410 transitions, 831 flow [2024-10-31 22:11:20,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 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 22:11:20,404 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:20,405 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, 1, 1, 1, 1, 1, 1, 1, 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 22:11:20,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:11:20,405 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:20,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:20,406 INFO L85 PathProgramCache]: Analyzing trace with hash 30063585, now seen corresponding path program 1 times [2024-10-31 22:11:20,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:20,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424278234] [2024-10-31 22:11:20,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:20,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:20,496 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 22:11:20,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:20,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424278234] [2024-10-31 22:11:20,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424278234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:20,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:20,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:20,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243428725] [2024-10-31 22:11:20,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:20,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:20,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:20,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:20,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:20,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 510 [2024-10-31 22:11:20,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 410 transitions, 831 flow. Second operand has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 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 22:11:20,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:20,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 510 [2024-10-31 22:11:20,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:20,851 INFO L124 PetriNetUnfolderBase]: 109/1164 cut-off events. [2024-10-31 22:11:20,852 INFO L125 PetriNetUnfolderBase]: For 15/16 co-relation queries the response was YES. [2024-10-31 22:11:20,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 1164 events. 109/1164 cut-off events. For 15/16 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5661 event pairs, 56 based on Foata normal form. 0/1012 useless extension candidates. Maximal degree in co-relation 1290. Up to 135 conditions per place. [2024-10-31 22:11:20,862 INFO L140 encePairwiseOnDemand]: 505/510 looper letters, 17 selfloop transitions, 1 changer transitions 0/406 dead transitions. [2024-10-31 22:11:20,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 406 transitions, 859 flow [2024-10-31 22:11:20,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:20,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1387 transitions. [2024-10-31 22:11:20,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9065359477124183 [2024-10-31 22:11:20,866 INFO L175 Difference]: Start difference. First operand has 408 places, 410 transitions, 831 flow. Second operand 3 states and 1387 transitions. [2024-10-31 22:11:20,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 406 transitions, 859 flow [2024-10-31 22:11:20,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 406 transitions, 855 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:11:20,874 INFO L231 Difference]: Finished difference. Result has 404 places, 406 transitions, 821 flow [2024-10-31 22:11:20,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=821, PETRI_PLACES=404, PETRI_TRANSITIONS=406} [2024-10-31 22:11:20,876 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -45 predicate places. [2024-10-31 22:11:20,876 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 406 transitions, 821 flow [2024-10-31 22:11:20,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 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 22:11:20,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:20,878 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:20,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:11:20,879 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:20,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:20,879 INFO L85 PathProgramCache]: Analyzing trace with hash 360475418, now seen corresponding path program 1 times [2024-10-31 22:11:20,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:20,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86766635] [2024-10-31 22:11:20,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:20,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:21,821 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 22:11:21,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:21,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86766635] [2024-10-31 22:11:21,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86766635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:21,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:21,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:11:21,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877499403] [2024-10-31 22:11:21,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:21,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:11:21,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:21,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:11:21,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:11:22,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 510 [2024-10-31 22:11:22,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 406 transitions, 821 flow. Second operand has 6 states, 6 states have (on average 443.1666666666667) internal successors, (2659), 6 states have internal predecessors, (2659), 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 22:11:22,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:22,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 510 [2024-10-31 22:11:22,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:22,826 INFO L124 PetriNetUnfolderBase]: 29/514 cut-off events. [2024-10-31 22:11:22,826 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-31 22:11:22,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 514 events. 29/514 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1132 event pairs, 4 based on Foata normal form. 0/477 useless extension candidates. Maximal degree in co-relation 558. Up to 43 conditions per place. [2024-10-31 22:11:22,831 INFO L140 encePairwiseOnDemand]: 503/510 looper letters, 35 selfloop transitions, 5 changer transitions 0/411 dead transitions. [2024-10-31 22:11:22,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 411 transitions, 915 flow [2024-10-31 22:11:22,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:11:22,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:11:22,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2694 transitions. [2024-10-31 22:11:22,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8803921568627451 [2024-10-31 22:11:22,838 INFO L175 Difference]: Start difference. First operand has 404 places, 406 transitions, 821 flow. Second operand 6 states and 2694 transitions. [2024-10-31 22:11:22,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 411 transitions, 915 flow [2024-10-31 22:11:22,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 411 transitions, 914 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:11:22,847 INFO L231 Difference]: Finished difference. Result has 407 places, 405 transitions, 832 flow [2024-10-31 22:11:22,848 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=832, PETRI_PLACES=407, PETRI_TRANSITIONS=405} [2024-10-31 22:11:22,848 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -42 predicate places. [2024-10-31 22:11:22,848 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 405 transitions, 832 flow [2024-10-31 22:11:22,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 443.1666666666667) internal successors, (2659), 6 states have internal predecessors, (2659), 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 22:11:22,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:22,851 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:22,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:11:22,851 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:22,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:22,852 INFO L85 PathProgramCache]: Analyzing trace with hash -555120169, now seen corresponding path program 1 times [2024-10-31 22:11:22,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:22,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582893673] [2024-10-31 22:11:22,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:22,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:22,922 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 22:11:22,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:22,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582893673] [2024-10-31 22:11:22,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582893673] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:22,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:22,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:22,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143483072] [2024-10-31 22:11:22,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:22,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:22,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:22,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:22,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:22,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 510 [2024-10-31 22:11:22,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 405 transitions, 832 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 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 22:11:22,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:22,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 510 [2024-10-31 22:11:22,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:23,140 INFO L124 PetriNetUnfolderBase]: 69/627 cut-off events. [2024-10-31 22:11:23,141 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-10-31 22:11:23,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 627 events. 69/627 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1973 event pairs, 36 based on Foata normal form. 0/574 useless extension candidates. Maximal degree in co-relation 757. Up to 98 conditions per place. [2024-10-31 22:11:23,147 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 16 selfloop transitions, 2 changer transitions 0/404 dead transitions. [2024-10-31 22:11:23,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 404 transitions, 866 flow [2024-10-31 22:11:23,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:23,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:23,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1392 transitions. [2024-10-31 22:11:23,151 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9098039215686274 [2024-10-31 22:11:23,151 INFO L175 Difference]: Start difference. First operand has 407 places, 405 transitions, 832 flow. Second operand 3 states and 1392 transitions. [2024-10-31 22:11:23,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 404 transitions, 866 flow [2024-10-31 22:11:23,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 404 transitions, 858 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:11:23,160 INFO L231 Difference]: Finished difference. Result has 404 places, 404 transitions, 826 flow [2024-10-31 22:11:23,161 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=826, PETRI_PLACES=404, PETRI_TRANSITIONS=404} [2024-10-31 22:11:23,161 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -45 predicate places. [2024-10-31 22:11:23,161 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 404 transitions, 826 flow [2024-10-31 22:11:23,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 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 22:11:23,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:23,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:23,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:11:23,163 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:23,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:23,164 INFO L85 PathProgramCache]: Analyzing trace with hash -620784319, now seen corresponding path program 1 times [2024-10-31 22:11:23,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:23,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314731194] [2024-10-31 22:11:23,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:23,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:23,228 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 22:11:23,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:23,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314731194] [2024-10-31 22:11:23,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314731194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:23,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:23,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:23,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161661479] [2024-10-31 22:11:23,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:23,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:23,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:23,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:23,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:23,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 510 [2024-10-31 22:11:23,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 404 transitions, 826 flow. Second operand has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 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 22:11:23,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:23,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 510 [2024-10-31 22:11:23,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:23,545 INFO L124 PetriNetUnfolderBase]: 125/1187 cut-off events. [2024-10-31 22:11:23,546 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-31 22:11:23,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1417 conditions, 1187 events. 125/1187 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5853 event pairs, 58 based on Foata normal form. 0/1053 useless extension candidates. Maximal degree in co-relation 1384. Up to 158 conditions per place. [2024-10-31 22:11:23,557 INFO L140 encePairwiseOnDemand]: 505/510 looper letters, 18 selfloop transitions, 1 changer transitions 0/400 dead transitions. [2024-10-31 22:11:23,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 400 transitions, 856 flow [2024-10-31 22:11:23,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:23,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:23,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1387 transitions. [2024-10-31 22:11:23,561 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9065359477124183 [2024-10-31 22:11:23,561 INFO L175 Difference]: Start difference. First operand has 404 places, 404 transitions, 826 flow. Second operand 3 states and 1387 transitions. [2024-10-31 22:11:23,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 400 transitions, 856 flow [2024-10-31 22:11:23,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 400 transitions, 852 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:11:23,570 INFO L231 Difference]: Finished difference. Result has 400 places, 400 transitions, 816 flow [2024-10-31 22:11:23,571 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=816, PETRI_PLACES=400, PETRI_TRANSITIONS=400} [2024-10-31 22:11:23,571 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -49 predicate places. [2024-10-31 22:11:23,571 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 400 transitions, 816 flow [2024-10-31 22:11:23,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 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 22:11:23,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:23,573 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:23,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:11:23,573 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:23,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:23,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1135693127, now seen corresponding path program 1 times [2024-10-31 22:11:23,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:23,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694809725] [2024-10-31 22:11:23,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:23,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:24,226 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 22:11:24,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:24,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694809725] [2024-10-31 22:11:24,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694809725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:24,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:24,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:11:24,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661745154] [2024-10-31 22:11:24,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:24,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:11:24,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:24,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:11:24,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:11:24,882 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 510 [2024-10-31 22:11:24,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 400 transitions, 816 flow. Second operand has 6 states, 6 states have (on average 443.1666666666667) internal successors, (2659), 6 states have internal predecessors, (2659), 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 22:11:24,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:24,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 510 [2024-10-31 22:11:24,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:25,235 INFO L124 PetriNetUnfolderBase]: 29/507 cut-off events. [2024-10-31 22:11:25,235 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-31 22:11:25,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 601 conditions, 507 events. 29/507 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1107 event pairs, 4 based on Foata normal form. 0/477 useless extension candidates. Maximal degree in co-relation 567. Up to 43 conditions per place. [2024-10-31 22:11:25,240 INFO L140 encePairwiseOnDemand]: 503/510 looper letters, 35 selfloop transitions, 5 changer transitions 0/404 dead transitions. [2024-10-31 22:11:25,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 404 transitions, 908 flow [2024-10-31 22:11:25,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:11:25,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:11:25,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2694 transitions. [2024-10-31 22:11:25,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8803921568627451 [2024-10-31 22:11:25,246 INFO L175 Difference]: Start difference. First operand has 400 places, 400 transitions, 816 flow. Second operand 6 states and 2694 transitions. [2024-10-31 22:11:25,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 404 transitions, 908 flow [2024-10-31 22:11:25,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 404 transitions, 907 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:11:25,254 INFO L231 Difference]: Finished difference. Result has 402 places, 398 transitions, 821 flow [2024-10-31 22:11:25,255 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=821, PETRI_PLACES=402, PETRI_TRANSITIONS=398} [2024-10-31 22:11:25,256 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -47 predicate places. [2024-10-31 22:11:25,256 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 398 transitions, 821 flow [2024-10-31 22:11:25,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 443.1666666666667) internal successors, (2659), 6 states have internal predecessors, (2659), 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 22:11:25,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:25,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:25,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:11:25,259 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:25,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:25,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1178971585, now seen corresponding path program 1 times [2024-10-31 22:11:25,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:25,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720348135] [2024-10-31 22:11:25,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:25,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:25,412 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 22:11:25,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:25,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720348135] [2024-10-31 22:11:25,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720348135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:25,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:25,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:25,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360976577] [2024-10-31 22:11:25,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:25,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:25,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:25,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:25,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:25,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 510 [2024-10-31 22:11:25,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 398 transitions, 821 flow. Second operand has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 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 22:11:25,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:25,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 510 [2024-10-31 22:11:25,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:25,682 INFO L124 PetriNetUnfolderBase]: 69/620 cut-off events. [2024-10-31 22:11:25,682 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-10-31 22:11:25,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 620 events. 69/620 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1912 event pairs, 36 based on Foata normal form. 0/571 useless extension candidates. Maximal degree in co-relation 752. Up to 98 conditions per place. [2024-10-31 22:11:25,688 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 16 selfloop transitions, 2 changer transitions 0/397 dead transitions. [2024-10-31 22:11:25,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 397 transitions, 855 flow [2024-10-31 22:11:25,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:25,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:25,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1392 transitions. [2024-10-31 22:11:25,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9098039215686274 [2024-10-31 22:11:25,692 INFO L175 Difference]: Start difference. First operand has 402 places, 398 transitions, 821 flow. Second operand 3 states and 1392 transitions. [2024-10-31 22:11:25,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 397 transitions, 855 flow [2024-10-31 22:11:25,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 397 transitions, 845 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:11:25,700 INFO L231 Difference]: Finished difference. Result has 398 places, 397 transitions, 813 flow [2024-10-31 22:11:25,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=813, PETRI_PLACES=398, PETRI_TRANSITIONS=397} [2024-10-31 22:11:25,702 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -51 predicate places. [2024-10-31 22:11:25,702 INFO L471 AbstractCegarLoop]: Abstraction has has 398 places, 397 transitions, 813 flow [2024-10-31 22:11:25,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.3333333333333) internal successors, (1378), 3 states have internal predecessors, (1378), 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 22:11:25,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:25,704 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:25,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:11:25,704 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:25,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:25,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1081886323, now seen corresponding path program 1 times [2024-10-31 22:11:25,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:25,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755496982] [2024-10-31 22:11:25,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:25,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:25,796 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 22:11:25,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:25,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755496982] [2024-10-31 22:11:25,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755496982] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:25,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:25,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:25,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734351284] [2024-10-31 22:11:25,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:25,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:25,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:25,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:25,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:25,816 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 510 [2024-10-31 22:11:25,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 397 transitions, 813 flow. Second operand has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 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 22:11:25,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:25,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 510 [2024-10-31 22:11:25,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:25,974 INFO L124 PetriNetUnfolderBase]: 31/461 cut-off events. [2024-10-31 22:11:25,975 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-31 22:11:25,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 461 events. 31/461 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 843 event pairs, 14 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 506. Up to 50 conditions per place. [2024-10-31 22:11:25,979 INFO L140 encePairwiseOnDemand]: 507/510 looper letters, 14 selfloop transitions, 2 changer transitions 0/396 dead transitions. [2024-10-31 22:11:25,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 396 transitions, 843 flow [2024-10-31 22:11:25,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:25,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:25,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1396 transitions. [2024-10-31 22:11:25,982 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9124183006535947 [2024-10-31 22:11:25,982 INFO L175 Difference]: Start difference. First operand has 398 places, 397 transitions, 813 flow. Second operand 3 states and 1396 transitions. [2024-10-31 22:11:25,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 396 transitions, 843 flow [2024-10-31 22:11:25,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 396 transitions, 839 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:11:25,990 INFO L231 Difference]: Finished difference. Result has 397 places, 396 transitions, 811 flow [2024-10-31 22:11:25,991 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=811, PETRI_PLACES=397, PETRI_TRANSITIONS=396} [2024-10-31 22:11:25,993 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -52 predicate places. [2024-10-31 22:11:25,993 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 396 transitions, 811 flow [2024-10-31 22:11:25,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 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 22:11:25,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:25,995 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:25,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:11:25,995 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:25,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:25,996 INFO L85 PathProgramCache]: Analyzing trace with hash 688744348, now seen corresponding path program 1 times [2024-10-31 22:11:25,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:25,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411806081] [2024-10-31 22:11:25,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:25,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:26,099 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 22:11:26,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:26,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411806081] [2024-10-31 22:11:26,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411806081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:26,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:26,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:26,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013574334] [2024-10-31 22:11:26,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:26,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:26,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:26,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:26,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:26,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 510 [2024-10-31 22:11:26,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 396 transitions, 811 flow. Second operand has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 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 22:11:26,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:26,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 510 [2024-10-31 22:11:26,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:26,570 INFO L124 PetriNetUnfolderBase]: 113/1198 cut-off events. [2024-10-31 22:11:26,570 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-10-31 22:11:26,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1425 conditions, 1198 events. 113/1198 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6615 event pairs, 25 based on Foata normal form. 0/1089 useless extension candidates. Maximal degree in co-relation 1392. Up to 91 conditions per place. [2024-10-31 22:11:26,581 INFO L140 encePairwiseOnDemand]: 505/510 looper letters, 24 selfloop transitions, 3 changer transitions 0/405 dead transitions. [2024-10-31 22:11:26,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 405 transitions, 892 flow [2024-10-31 22:11:26,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:26,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:26,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1407 transitions. [2024-10-31 22:11:26,584 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9196078431372549 [2024-10-31 22:11:26,585 INFO L175 Difference]: Start difference. First operand has 397 places, 396 transitions, 811 flow. Second operand 3 states and 1407 transitions. [2024-10-31 22:11:26,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 405 transitions, 892 flow [2024-10-31 22:11:26,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 405 transitions, 888 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:11:26,593 INFO L231 Difference]: Finished difference. Result has 396 places, 396 transitions, 820 flow [2024-10-31 22:11:26,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=820, PETRI_PLACES=396, PETRI_TRANSITIONS=396} [2024-10-31 22:11:26,594 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -53 predicate places. [2024-10-31 22:11:26,595 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 396 transitions, 820 flow [2024-10-31 22:11:26,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 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 22:11:26,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:26,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:26,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:11:26,596 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:26,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:26,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1410606142, now seen corresponding path program 1 times [2024-10-31 22:11:26,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:26,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557545326] [2024-10-31 22:11:26,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:26,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:26,971 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 22:11:26,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:26,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557545326] [2024-10-31 22:11:26,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557545326] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:26,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:26,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:11:26,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649014346] [2024-10-31 22:11:26,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:26,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:11:26,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:26,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:11:26,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:11:27,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 510 [2024-10-31 22:11:27,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 396 transitions, 820 flow. Second operand has 7 states, 7 states have (on average 439.14285714285717) internal successors, (3074), 7 states have internal predecessors, (3074), 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 22:11:27,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:27,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 510 [2024-10-31 22:11:27,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:28,303 INFO L124 PetriNetUnfolderBase]: 256/1901 cut-off events. [2024-10-31 22:11:28,303 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-10-31 22:11:28,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2481 conditions, 1901 events. 256/1901 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 9860 event pairs, 122 based on Foata normal form. 9/1758 useless extension candidates. Maximal degree in co-relation 2446. Up to 245 conditions per place. [2024-10-31 22:11:28,318 INFO L140 encePairwiseOnDemand]: 481/510 looper letters, 52 selfloop transitions, 42 changer transitions 0/447 dead transitions. [2024-10-31 22:11:28,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 447 transitions, 1126 flow [2024-10-31 22:11:28,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:11:28,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:11:28,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4442 transitions. [2024-10-31 22:11:28,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8709803921568627 [2024-10-31 22:11:28,326 INFO L175 Difference]: Start difference. First operand has 396 places, 396 transitions, 820 flow. Second operand 10 states and 4442 transitions. [2024-10-31 22:11:28,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 447 transitions, 1126 flow [2024-10-31 22:11:28,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 447 transitions, 1123 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:11:28,335 INFO L231 Difference]: Finished difference. Result has 408 places, 421 transitions, 1009 flow [2024-10-31 22:11:28,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1009, PETRI_PLACES=408, PETRI_TRANSITIONS=421} [2024-10-31 22:11:28,336 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -41 predicate places. [2024-10-31 22:11:28,336 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 421 transitions, 1009 flow [2024-10-31 22:11:28,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 439.14285714285717) internal successors, (3074), 7 states have internal predecessors, (3074), 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 22:11:28,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:28,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:28,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:11:28,338 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:28,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:28,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1577782458, now seen corresponding path program 1 times [2024-10-31 22:11:28,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:28,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902969392] [2024-10-31 22:11:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:28,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:28,428 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 22:11:28,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:28,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902969392] [2024-10-31 22:11:28,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902969392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:28,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:28,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:28,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511221560] [2024-10-31 22:11:28,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:28,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:28,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:28,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:28,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:28,438 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 510 [2024-10-31 22:11:28,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 421 transitions, 1009 flow. Second operand has 3 states, 3 states have (on average 467.0) internal successors, (1401), 3 states have internal predecessors, (1401), 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 22:11:28,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:28,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 510 [2024-10-31 22:11:28,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:28,729 INFO L124 PetriNetUnfolderBase]: 87/956 cut-off events. [2024-10-31 22:11:28,733 INFO L125 PetriNetUnfolderBase]: For 68/80 co-relation queries the response was YES. [2024-10-31 22:11:28,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 956 events. 87/956 cut-off events. For 68/80 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2739 event pairs, 39 based on Foata normal form. 0/919 useless extension candidates. Maximal degree in co-relation 1202. Up to 125 conditions per place. [2024-10-31 22:11:28,739 INFO L140 encePairwiseOnDemand]: 508/510 looper letters, 12 selfloop transitions, 1 changer transitions 0/420 dead transitions. [2024-10-31 22:11:28,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 420 transitions, 1033 flow [2024-10-31 22:11:28,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:28,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:28,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1405 transitions. [2024-10-31 22:11:28,748 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9183006535947712 [2024-10-31 22:11:28,752 INFO L175 Difference]: Start difference. First operand has 408 places, 421 transitions, 1009 flow. Second operand 3 states and 1405 transitions. [2024-10-31 22:11:28,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 420 transitions, 1033 flow [2024-10-31 22:11:28,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 420 transitions, 1033 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:11:28,764 INFO L231 Difference]: Finished difference. Result has 409 places, 420 transitions, 1009 flow [2024-10-31 22:11:28,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=1007, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1009, PETRI_PLACES=409, PETRI_TRANSITIONS=420} [2024-10-31 22:11:28,768 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -40 predicate places. [2024-10-31 22:11:28,768 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 420 transitions, 1009 flow [2024-10-31 22:11:28,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 467.0) internal successors, (1401), 3 states have internal predecessors, (1401), 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 22:11:28,770 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:28,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:28,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:11:28,774 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:28,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:28,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1541076308, now seen corresponding path program 1 times [2024-10-31 22:11:28,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:28,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088519409] [2024-10-31 22:11:28,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:28,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:11:28,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:28,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088519409] [2024-10-31 22:11:28,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088519409] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:28,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:28,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:28,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120806685] [2024-10-31 22:11:28,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:28,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:28,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:28,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:28,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:28,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 510 [2024-10-31 22:11:28,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 420 transitions, 1009 flow. Second operand has 3 states, 3 states have (on average 463.0) internal successors, (1389), 3 states have internal predecessors, (1389), 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 22:11:28,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:28,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 510 [2024-10-31 22:11:28,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:29,765 INFO L124 PetriNetUnfolderBase]: 238/2127 cut-off events. [2024-10-31 22:11:29,765 INFO L125 PetriNetUnfolderBase]: For 138/138 co-relation queries the response was YES. [2024-10-31 22:11:29,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2779 conditions, 2127 events. 238/2127 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12968 event pairs, 61 based on Foata normal form. 4/1994 useless extension candidates. Maximal degree in co-relation 2737. Up to 176 conditions per place. [2024-10-31 22:11:29,785 INFO L140 encePairwiseOnDemand]: 505/510 looper letters, 20 selfloop transitions, 2 changer transitions 31/429 dead transitions. [2024-10-31 22:11:29,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 429 transitions, 1088 flow [2024-10-31 22:11:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:29,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:29,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1406 transitions. [2024-10-31 22:11:29,788 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.918954248366013 [2024-10-31 22:11:29,789 INFO L175 Difference]: Start difference. First operand has 409 places, 420 transitions, 1009 flow. Second operand 3 states and 1406 transitions. [2024-10-31 22:11:29,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 429 transitions, 1088 flow [2024-10-31 22:11:29,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 429 transitions, 1087 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:11:29,799 INFO L231 Difference]: Finished difference. Result has 409 places, 390 transitions, 884 flow [2024-10-31 22:11:29,799 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=1004, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=884, PETRI_PLACES=409, PETRI_TRANSITIONS=390} [2024-10-31 22:11:29,800 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -40 predicate places. [2024-10-31 22:11:29,800 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 390 transitions, 884 flow [2024-10-31 22:11:29,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 463.0) internal successors, (1389), 3 states have internal predecessors, (1389), 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 22:11:29,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:29,801 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:29,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-31 22:11:29,802 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:29,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:29,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1969656587, now seen corresponding path program 1 times [2024-10-31 22:11:29,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:29,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499249215] [2024-10-31 22:11:29,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:29,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:30,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:11:30,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:30,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499249215] [2024-10-31 22:11:30,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499249215] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:11:30,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303685594] [2024-10-31 22:11:30,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:30,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:11:30,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:11:30,287 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:11:30,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:11:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:30,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:11:30,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:11:31,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:11:31,270 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:11:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:11:32,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303685594] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:11:32,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:11:32,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-10-31 22:11:32,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076734552] [2024-10-31 22:11:32,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:11:32,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-31 22:11:32,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:32,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-31 22:11:32,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:11:33,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 425 out of 510 [2024-10-31 22:11:33,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 390 transitions, 884 flow. Second operand has 19 states, 19 states have (on average 428.1578947368421) internal successors, (8135), 19 states have internal predecessors, (8135), 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 22:11:33,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:33,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 425 of 510 [2024-10-31 22:11:33,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:35,876 INFO L124 PetriNetUnfolderBase]: 491/2909 cut-off events. [2024-10-31 22:11:35,876 INFO L125 PetriNetUnfolderBase]: For 384/384 co-relation queries the response was YES. [2024-10-31 22:11:35,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4208 conditions, 2909 events. 491/2909 cut-off events. For 384/384 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 18077 event pairs, 201 based on Foata normal form. 9/2686 useless extension candidates. Maximal degree in co-relation 4164. Up to 437 conditions per place. [2024-10-31 22:11:35,903 INFO L140 encePairwiseOnDemand]: 471/510 looper letters, 34 selfloop transitions, 36 changer transitions 77/480 dead transitions. [2024-10-31 22:11:35,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 480 transitions, 1461 flow [2024-10-31 22:11:35,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-31 22:11:35,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-31 22:11:35,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 8217 transitions. [2024-10-31 22:11:35,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8479876160990713 [2024-10-31 22:11:35,922 INFO L175 Difference]: Start difference. First operand has 409 places, 390 transitions, 884 flow. Second operand 19 states and 8217 transitions. [2024-10-31 22:11:35,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 480 transitions, 1461 flow [2024-10-31 22:11:35,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 480 transitions, 1357 flow, removed 21 selfloop flow, removed 8 redundant places. [2024-10-31 22:11:35,933 INFO L231 Difference]: Finished difference. Result has 418 places, 397 transitions, 1004 flow [2024-10-31 22:11:35,934 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=510, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1004, PETRI_PLACES=418, PETRI_TRANSITIONS=397} [2024-10-31 22:11:35,934 INFO L277 CegarLoopForPetriNet]: 449 programPoint places, -31 predicate places. [2024-10-31 22:11:35,935 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 397 transitions, 1004 flow [2024-10-31 22:11:35,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 428.1578947368421) internal successors, (8135), 19 states have internal predecessors, (8135), 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 22:11:35,942 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:35,943 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:35,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:11:36,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aed6669-d62c-4002-bbe6-9971d36a9c3d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:11:36,147 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-10-31 22:11:36,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:36,148 INFO L85 PathProgramCache]: Analyzing trace with hash -562157278, now seen corresponding path program 2 times [2024-10-31 22:11:36,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:36,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562623455] [2024-10-31 22:11:36,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:36,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:37,357 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-31 22:11:37,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:37,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562623455] [2024-10-31 22:11:37,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562623455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:37,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:37,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:11:37,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756126175] [2024-10-31 22:11:37,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:37,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:11:37,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:37,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:11:37,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:11:38,032 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 510 [2024-10-31 22:11:38,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 397 transitions, 1004 flow. Second operand has 6 states, 6 states have (on average 442.5) internal successors, (2655), 6 states have internal predecessors, (2655), 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 22:11:38,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:38,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 510 [2024-10-31 22:11:38,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand