./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya --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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:11:04,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:11:04,231 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 07:11:04,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:11:04,236 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:11:04,260 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:11:04,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:11:04,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:11:04,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:11:04,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:11:04,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:11:04,264 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:11:04,264 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:11:04,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:11:04,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:11:04,266 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:11:04,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:11:04,268 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:11:04,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:11:04,269 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:11:04,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:11:04,270 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:11:04,271 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 07:11:04,271 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 07:11:04,271 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:11:04,272 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:11:04,272 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:11:04,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:11:04,273 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:11:04,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:11:04,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:11:04,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:11:04,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:11:04,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:11:04,275 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:11:04,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:11:04,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:11:04,276 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:11:04,276 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:11:04,276 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:11:04,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:11:04,277 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_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2023-11-29 07:11:04,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:11:04,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:11:04,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:11:04,556 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:11:04,556 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:11:04,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2023-11-29 07:11:07,436 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:11:07,659 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:11:07,660 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2023-11-29 07:11:07,677 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/data/a47e02bef/742be78133f04c4da7601a9d2fb83c3d/FLAG2403b0407 [2023-11-29 07:11:07,691 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/data/a47e02bef/742be78133f04c4da7601a9d2fb83c3d [2023-11-29 07:11:07,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:11:07,695 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:11:07,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:11:07,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:11:07,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:11:07,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:11:07" (1/1) ... [2023-11-29 07:11:07,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e218984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:07, skipping insertion in model container [2023-11-29 07:11:07,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:11:07" (1/1) ... [2023-11-29 07:11:07,755 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:11:08,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:11:08,236 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:11:08,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:11:08,330 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:11:08,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:08 WrapperNode [2023-11-29 07:11:08,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:11:08,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:11:08,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:11:08,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:11:08,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:08" (1/1) ... [2023-11-29 07:11:08,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:08" (1/1) ... [2023-11-29 07:11:08,383 INFO L138 Inliner]: procedures = 265, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 99 [2023-11-29 07:11:08,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:11:08,383 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:11:08,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:11:08,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:11:08,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:08" (1/1) ... [2023-11-29 07:11:08,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:08" (1/1) ... [2023-11-29 07:11:08,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:08" (1/1) ... [2023-11-29 07:11:08,397 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:08" (1/1) ... [2023-11-29 07:11:08,407 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:08" (1/1) ... [2023-11-29 07:11:08,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:08" (1/1) ... [2023-11-29 07:11:08,413 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:08" (1/1) ... [2023-11-29 07:11:08,415 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:08" (1/1) ... [2023-11-29 07:11:08,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:11:08,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:11:08,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:11:08,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:11:08,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:08" (1/1) ... [2023-11-29 07:11:08,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:11:08,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:08,447 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:11:08,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:11:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 07:11:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 07:11:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 07:11:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 07:11:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 07:11:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 07:11:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:11:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 07:11:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 07:11:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:11:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:11:08,492 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 07:11:08,614 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:11:08,616 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:11:08,848 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:11:08,870 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:11:08,871 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 07:11:08,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:11:08 BoogieIcfgContainer [2023-11-29 07:11:08,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:11:08,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:11:08,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:11:08,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:11:08,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:11:07" (1/3) ... [2023-11-29 07:11:08,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338c3710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:11:08, skipping insertion in model container [2023-11-29 07:11:08,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:08" (2/3) ... [2023-11-29 07:11:08,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338c3710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:11:08, skipping insertion in model container [2023-11-29 07:11:08,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:11:08" (3/3) ... [2023-11-29 07:11:08,881 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2023-11-29 07:11:08,889 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 07:11:08,900 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:11:08,900 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-29 07:11:08,900 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 07:11:08,960 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 07:11:08,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 107 transitions, 218 flow [2023-11-29 07:11:09,035 INFO L124 PetriNetUnfolderBase]: 4/106 cut-off events. [2023-11-29 07:11:09,036 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 07:11:09,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 106 events. 4/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-11-29 07:11:09,040 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 107 transitions, 218 flow [2023-11-29 07:11:09,044 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 106 transitions, 215 flow [2023-11-29 07:11:09,053 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:11:09,058 INFO L357 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, mHoare=true, 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;@119157d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:11:09,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-29 07:11:09,071 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 07:11:09,072 INFO L124 PetriNetUnfolderBase]: 4/54 cut-off events. [2023-11-29 07:11:09,072 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 07:11:09,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:09,073 INFO L208 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] [2023-11-29 07:11:09,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:09,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:09,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1382216346, now seen corresponding path program 1 times [2023-11-29 07:11:09,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:09,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150879897] [2023-11-29 07:11:09,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:09,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:09,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:09,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:09,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150879897] [2023-11-29 07:11:09,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150879897] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:11:09,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:11:09,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:11:09,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100647070] [2023-11-29 07:11:09,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:11:09,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:11:09,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:09,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:11:09,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:11:09,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 107 [2023-11-29 07:11:09,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 106 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2023-11-29 07:11:09,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:11:09,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 107 [2023-11-29 07:11:09,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:11:09,455 INFO L124 PetriNetUnfolderBase]: 7/171 cut-off events. [2023-11-29 07:11:09,455 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 07:11:09,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 171 events. 7/171 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 343 event pairs, 6 based on Foata normal form. 5/164 useless extension candidates. Maximal degree in co-relation 153. Up to 24 conditions per place. [2023-11-29 07:11:09,458 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 10 selfloop transitions, 2 changer transitions 1/104 dead transitions. [2023-11-29 07:11:09,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 104 transitions, 235 flow [2023-11-29 07:11:09,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:11:09,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:11:09,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-11-29 07:11:09,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9221183800623053 [2023-11-29 07:11:09,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-11-29 07:11:09,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-11-29 07:11:09,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:11:09,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-11-29 07:11:09,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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) [2023-11-29 07:11:09,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-29 07:11:09,488 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-11-29 07:11:09,489 INFO L175 Difference]: Start difference. First operand has 106 places, 106 transitions, 215 flow. Second operand 3 states and 296 transitions. [2023-11-29 07:11:09,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 104 transitions, 235 flow [2023-11-29 07:11:09,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 104 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 07:11:09,497 INFO L231 Difference]: Finished difference. Result has 108 places, 103 transitions, 218 flow [2023-11-29 07:11:09,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=108, PETRI_TRANSITIONS=103} [2023-11-29 07:11:09,503 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 2 predicate places. [2023-11-29 07:11:09,504 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 103 transitions, 218 flow [2023-11-29 07:11:09,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2023-11-29 07:11:09,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:09,505 INFO L208 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] [2023-11-29 07:11:09,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 07:11:09,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:09,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:09,506 INFO L85 PathProgramCache]: Analyzing trace with hash 463896557, now seen corresponding path program 1 times [2023-11-29 07:11:09,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:09,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187233640] [2023-11-29 07:11:09,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:09,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:09,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:09,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:09,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187233640] [2023-11-29 07:11:09,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187233640] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:11:09,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247854201] [2023-11-29 07:11:09,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:09,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:09,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:09,692 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:09,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 07:11:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:09,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:11:09,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:09,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:09,954 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:11:10,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:10,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247854201] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:11:10,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:11:10,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-29 07:11:10,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126488828] [2023-11-29 07:11:10,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:11:10,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:11:10,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:10,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:11:10,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:11:10,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 107 [2023-11-29 07:11:10,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 218 flow. Second operand has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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) [2023-11-29 07:11:10,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:11:10,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 107 [2023-11-29 07:11:10,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:11:10,217 INFO L124 PetriNetUnfolderBase]: 7/177 cut-off events. [2023-11-29 07:11:10,218 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 07:11:10,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 177 events. 7/177 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 337 event pairs, 6 based on Foata normal form. 2/168 useless extension candidates. Maximal degree in co-relation 200. Up to 24 conditions per place. [2023-11-29 07:11:10,220 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 14 selfloop transitions, 9 changer transitions 0/111 dead transitions. [2023-11-29 07:11:10,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 111 transitions, 282 flow [2023-11-29 07:11:10,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:11:10,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 07:11:10,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 835 transitions. [2023-11-29 07:11:10,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8670820353063343 [2023-11-29 07:11:10,227 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 835 transitions. [2023-11-29 07:11:10,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 835 transitions. [2023-11-29 07:11:10,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:11:10,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 835 transitions. [2023-11-29 07:11:10,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 92.77777777777777) internal successors, (835), 9 states have internal predecessors, (835), 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) [2023-11-29 07:11:10,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2023-11-29 07:11:10,240 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2023-11-29 07:11:10,240 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 218 flow. Second operand 9 states and 835 transitions. [2023-11-29 07:11:10,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 111 transitions, 282 flow [2023-11-29 07:11:10,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 111 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 07:11:10,246 INFO L231 Difference]: Finished difference. Result has 117 places, 109 transitions, 266 flow [2023-11-29 07:11:10,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=266, PETRI_PLACES=117, PETRI_TRANSITIONS=109} [2023-11-29 07:11:10,248 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 11 predicate places. [2023-11-29 07:11:10,248 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 109 transitions, 266 flow [2023-11-29 07:11:10,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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) [2023-11-29 07:11:10,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:10,250 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:10,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 07:11:10,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:10,454 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:10,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:10,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1532137485, now seen corresponding path program 2 times [2023-11-29 07:11:10,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:10,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489192301] [2023-11-29 07:11:10,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:10,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:10,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:10,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489192301] [2023-11-29 07:11:10,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489192301] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:11:10,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884412628] [2023-11-29 07:11:10,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:11:10,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:10,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:10,694 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:10,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 07:11:10,813 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 07:11:10,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:11:10,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:11:10,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:10,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 07:11:10,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 07:11:10,934 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:11:10,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 07:11:10,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:11:10,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 07:11:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 07:11:11,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:11:11,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884412628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:11:11,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:11:11,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2023-11-29 07:11:11,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35035110] [2023-11-29 07:11:11,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:11:11,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:11:11,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:11,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:11:11,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:11:11,311 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2023-11-29 07:11:11,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 109 transitions, 266 flow. Second operand has 6 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 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) [2023-11-29 07:11:11,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:11:11,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2023-11-29 07:11:11,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:11:11,562 INFO L124 PetriNetUnfolderBase]: 103/510 cut-off events. [2023-11-29 07:11:11,562 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-29 07:11:11,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 510 events. 103/510 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2473 event pairs, 40 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 722. Up to 184 conditions per place. [2023-11-29 07:11:11,569 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 31 selfloop transitions, 22 changer transitions 0/138 dead transitions. [2023-11-29 07:11:11,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 138 transitions, 430 flow [2023-11-29 07:11:11,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:11:11,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 07:11:11,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2023-11-29 07:11:11,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8317757009345794 [2023-11-29 07:11:11,573 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 534 transitions. [2023-11-29 07:11:11,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 534 transitions. [2023-11-29 07:11:11,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:11:11,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 534 transitions. [2023-11-29 07:11:11,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 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) [2023-11-29 07:11:11,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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) [2023-11-29 07:11:11,579 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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) [2023-11-29 07:11:11,579 INFO L175 Difference]: Start difference. First operand has 117 places, 109 transitions, 266 flow. Second operand 6 states and 534 transitions. [2023-11-29 07:11:11,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 138 transitions, 430 flow [2023-11-29 07:11:11,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 138 transitions, 424 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-29 07:11:11,586 INFO L231 Difference]: Finished difference. Result has 126 places, 130 transitions, 410 flow [2023-11-29 07:11:11,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=410, PETRI_PLACES=126, PETRI_TRANSITIONS=130} [2023-11-29 07:11:11,588 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 20 predicate places. [2023-11-29 07:11:11,588 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 130 transitions, 410 flow [2023-11-29 07:11:11,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 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) [2023-11-29 07:11:11,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:11,590 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:11,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 07:11:11,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:11,791 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:11,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:11,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1673316054, now seen corresponding path program 1 times [2023-11-29 07:11:11,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:11,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428021769] [2023-11-29 07:11:11,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:11,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:12,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:12,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428021769] [2023-11-29 07:11:12,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428021769] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:11:12,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302341886] [2023-11-29 07:11:12,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:12,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:12,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:12,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:12,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 07:11:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:12,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:11:12,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:12,237 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:12,238 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:11:12,354 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:12,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302341886] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:11:12,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:11:12,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-29 07:11:12,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25282864] [2023-11-29 07:11:12,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:11:12,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 07:11:12,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:12,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 07:11:12,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:11:12,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 107 [2023-11-29 07:11:12,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 130 transitions, 410 flow. Second operand has 18 states, 18 states have (on average 92.0) internal successors, (1656), 18 states have internal predecessors, (1656), 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) [2023-11-29 07:11:12,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:11:12,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 107 [2023-11-29 07:11:12,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:11:12,677 INFO L124 PetriNetUnfolderBase]: 47/360 cut-off events. [2023-11-29 07:11:12,677 INFO L125 PetriNetUnfolderBase]: For 54/57 co-relation queries the response was YES. [2023-11-29 07:11:12,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 360 events. 47/360 cut-off events. For 54/57 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1254 event pairs, 11 based on Foata normal form. 4/348 useless extension candidates. Maximal degree in co-relation 517. Up to 51 conditions per place. [2023-11-29 07:11:12,681 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 18 selfloop transitions, 21 changer transitions 0/148 dead transitions. [2023-11-29 07:11:12,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 148 transitions, 576 flow [2023-11-29 07:11:12,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 07:11:12,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 07:11:12,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1933 transitions. [2023-11-29 07:11:12,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8602581219403649 [2023-11-29 07:11:12,688 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1933 transitions. [2023-11-29 07:11:12,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1933 transitions. [2023-11-29 07:11:12,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:11:12,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1933 transitions. [2023-11-29 07:11:12,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 92.04761904761905) internal successors, (1933), 21 states have internal predecessors, (1933), 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) [2023-11-29 07:11:12,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 107.0) internal successors, (2354), 22 states have internal predecessors, (2354), 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) [2023-11-29 07:11:12,703 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 107.0) internal successors, (2354), 22 states have internal predecessors, (2354), 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) [2023-11-29 07:11:12,703 INFO L175 Difference]: Start difference. First operand has 126 places, 130 transitions, 410 flow. Second operand 21 states and 1933 transitions. [2023-11-29 07:11:12,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 148 transitions, 576 flow [2023-11-29 07:11:12,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 148 transitions, 576 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 07:11:12,711 INFO L231 Difference]: Finished difference. Result has 151 places, 143 transitions, 540 flow [2023-11-29 07:11:12,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=540, PETRI_PLACES=151, PETRI_TRANSITIONS=143} [2023-11-29 07:11:12,712 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 45 predicate places. [2023-11-29 07:11:12,712 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 143 transitions, 540 flow [2023-11-29 07:11:12,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 92.0) internal successors, (1656), 18 states have internal predecessors, (1656), 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) [2023-11-29 07:11:12,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:12,713 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:12,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 07:11:12,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:12,914 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:12,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:12,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1840766614, now seen corresponding path program 2 times [2023-11-29 07:11:12,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:12,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673769013] [2023-11-29 07:11:12,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:12,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:13,288 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:13,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:13,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673769013] [2023-11-29 07:11:13,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673769013] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:11:13,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780153644] [2023-11-29 07:11:13,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:11:13,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:13,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:13,291 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:13,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 07:11:13,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 07:11:13,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:11:13,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 07:11:13,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:13,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 07:11:13,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 07:11:13,457 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:11:13,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 07:11:13,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:11:13,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 07:11:13,539 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 07:11:13,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:11:13,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780153644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:11:13,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:11:13,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-29 07:11:13,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856074701] [2023-11-29 07:11:13,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:11:13,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:11:13,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:13,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:11:13,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-29 07:11:13,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2023-11-29 07:11:13,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 143 transitions, 540 flow. Second operand has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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) [2023-11-29 07:11:13,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:11:13,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2023-11-29 07:11:13,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:11:13,907 INFO L124 PetriNetUnfolderBase]: 223/850 cut-off events. [2023-11-29 07:11:13,907 INFO L125 PetriNetUnfolderBase]: For 188/194 co-relation queries the response was YES. [2023-11-29 07:11:13,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1721 conditions, 850 events. 223/850 cut-off events. For 188/194 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4845 event pairs, 82 based on Foata normal form. 5/795 useless extension candidates. Maximal degree in co-relation 1583. Up to 407 conditions per place. [2023-11-29 07:11:13,916 INFO L140 encePairwiseOnDemand]: 92/107 looper letters, 53 selfloop transitions, 39 changer transitions 5/188 dead transitions. [2023-11-29 07:11:13,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 188 transitions, 854 flow [2023-11-29 07:11:13,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:11:13,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 07:11:13,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 520 transitions. [2023-11-29 07:11:13,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8099688473520249 [2023-11-29 07:11:13,919 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 520 transitions. [2023-11-29 07:11:13,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 520 transitions. [2023-11-29 07:11:13,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:11:13,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 520 transitions. [2023-11-29 07:11:13,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.66666666666667) internal successors, (520), 6 states have internal predecessors, (520), 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) [2023-11-29 07:11:13,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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) [2023-11-29 07:11:13,924 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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) [2023-11-29 07:11:13,925 INFO L175 Difference]: Start difference. First operand has 151 places, 143 transitions, 540 flow. Second operand 6 states and 520 transitions. [2023-11-29 07:11:13,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 188 transitions, 854 flow [2023-11-29 07:11:13,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 188 transitions, 830 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-29 07:11:13,935 INFO L231 Difference]: Finished difference. Result has 155 places, 179 transitions, 804 flow [2023-11-29 07:11:13,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=155, PETRI_TRANSITIONS=179} [2023-11-29 07:11:13,936 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 49 predicate places. [2023-11-29 07:11:13,937 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 179 transitions, 804 flow [2023-11-29 07:11:13,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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) [2023-11-29 07:11:13,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:13,937 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:13,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 07:11:14,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:14,138 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:14,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:14,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1792313509, now seen corresponding path program 1 times [2023-11-29 07:11:14,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:14,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242896670] [2023-11-29 07:11:14,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:14,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:14,548 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:14,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:14,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242896670] [2023-11-29 07:11:14,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242896670] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:11:14,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435464374] [2023-11-29 07:11:14,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:14,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:14,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:14,550 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:14,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 07:11:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:14,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:11:14,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:14,775 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:14,775 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:11:15,011 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:15,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435464374] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:11:15,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:11:15,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-29 07:11:15,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914373386] [2023-11-29 07:11:15,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:11:15,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 07:11:15,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:15,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 07:11:15,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-29 07:11:15,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 107 [2023-11-29 07:11:15,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 179 transitions, 804 flow. Second operand has 23 states, 23 states have (on average 92.08695652173913) internal successors, (2118), 23 states have internal predecessors, (2118), 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) [2023-11-29 07:11:15,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:11:15,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 107 [2023-11-29 07:11:15,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:11:15,593 INFO L124 PetriNetUnfolderBase]: 126/625 cut-off events. [2023-11-29 07:11:15,593 INFO L125 PetriNetUnfolderBase]: For 313/316 co-relation queries the response was YES. [2023-11-29 07:11:15,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 625 events. 126/625 cut-off events. For 313/316 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2994 event pairs, 15 based on Foata normal form. 3/600 useless extension candidates. Maximal degree in co-relation 1158. Up to 118 conditions per place. [2023-11-29 07:11:15,600 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 21 selfloop transitions, 30 changer transitions 0/196 dead transitions. [2023-11-29 07:11:15,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 196 transitions, 1028 flow [2023-11-29 07:11:15,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-29 07:11:15,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-29 07:11:15,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2754 transitions. [2023-11-29 07:11:15,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8579439252336448 [2023-11-29 07:11:15,613 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2754 transitions. [2023-11-29 07:11:15,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2754 transitions. [2023-11-29 07:11:15,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:11:15,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2754 transitions. [2023-11-29 07:11:15,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 91.8) internal successors, (2754), 30 states have internal predecessors, (2754), 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) [2023-11-29 07:11:15,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 107.0) internal successors, (3317), 31 states have internal predecessors, (3317), 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) [2023-11-29 07:11:15,636 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 107.0) internal successors, (3317), 31 states have internal predecessors, (3317), 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) [2023-11-29 07:11:15,637 INFO L175 Difference]: Start difference. First operand has 155 places, 179 transitions, 804 flow. Second operand 30 states and 2754 transitions. [2023-11-29 07:11:15,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 196 transitions, 1028 flow [2023-11-29 07:11:15,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 196 transitions, 996 flow, removed 16 selfloop flow, removed 0 redundant places. [2023-11-29 07:11:15,648 INFO L231 Difference]: Finished difference. Result has 187 places, 189 transitions, 924 flow [2023-11-29 07:11:15,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=924, PETRI_PLACES=187, PETRI_TRANSITIONS=189} [2023-11-29 07:11:15,649 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 81 predicate places. [2023-11-29 07:11:15,649 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 189 transitions, 924 flow [2023-11-29 07:11:15,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 92.08695652173913) internal successors, (2118), 23 states have internal predecessors, (2118), 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) [2023-11-29 07:11:15,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:15,651 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:15,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 07:11:15,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 07:11:15,852 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:15,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:15,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1745245208, now seen corresponding path program 2 times [2023-11-29 07:11:15,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:15,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125259105] [2023-11-29 07:11:15,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:15,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:16,508 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:11:16,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:16,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125259105] [2023-11-29 07:11:16,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125259105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:11:16,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:11:16,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:11:16,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290157556] [2023-11-29 07:11:16,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:11:16,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:11:16,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:16,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:11:16,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:11:16,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 107 [2023-11-29 07:11:16,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 189 transitions, 924 flow. Second operand has 6 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 states have internal predecessors, (506), 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) [2023-11-29 07:11:16,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:11:16,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 107 [2023-11-29 07:11:16,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:11:16,902 INFO L124 PetriNetUnfolderBase]: 212/893 cut-off events. [2023-11-29 07:11:16,902 INFO L125 PetriNetUnfolderBase]: For 599/659 co-relation queries the response was YES. [2023-11-29 07:11:16,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2153 conditions, 893 events. 212/893 cut-off events. For 599/659 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 5151 event pairs, 40 based on Foata normal form. 3/878 useless extension candidates. Maximal degree in co-relation 1935. Up to 338 conditions per place. [2023-11-29 07:11:16,911 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 72 selfloop transitions, 40 changer transitions 0/228 dead transitions. [2023-11-29 07:11:16,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 228 transitions, 1332 flow [2023-11-29 07:11:16,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:11:16,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 07:11:16,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 549 transitions. [2023-11-29 07:11:16,915 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8551401869158879 [2023-11-29 07:11:16,915 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 549 transitions. [2023-11-29 07:11:16,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 549 transitions. [2023-11-29 07:11:16,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:11:16,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 549 transitions. [2023-11-29 07:11:16,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 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) [2023-11-29 07:11:16,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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) [2023-11-29 07:11:16,921 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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) [2023-11-29 07:11:16,921 INFO L175 Difference]: Start difference. First operand has 187 places, 189 transitions, 924 flow. Second operand 6 states and 549 transitions. [2023-11-29 07:11:16,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 228 transitions, 1332 flow [2023-11-29 07:11:16,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 228 transitions, 1286 flow, removed 5 selfloop flow, removed 18 redundant places. [2023-11-29 07:11:16,935 INFO L231 Difference]: Finished difference. Result has 179 places, 220 transitions, 1246 flow [2023-11-29 07:11:16,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1246, PETRI_PLACES=179, PETRI_TRANSITIONS=220} [2023-11-29 07:11:16,936 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 73 predicate places. [2023-11-29 07:11:16,936 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 220 transitions, 1246 flow [2023-11-29 07:11:16,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 states have internal predecessors, (506), 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) [2023-11-29 07:11:16,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:16,937 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:16,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 07:11:16,938 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:16,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:16,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1000709021, now seen corresponding path program 1 times [2023-11-29 07:11:16,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:16,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413584255] [2023-11-29 07:11:16,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:16,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:17,547 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:11:17,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:17,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413584255] [2023-11-29 07:11:17,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413584255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:11:17,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:11:17,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:11:17,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775731174] [2023-11-29 07:11:17,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:11:17,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:11:17,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:17,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:11:17,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:11:17,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2023-11-29 07:11:17,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 220 transitions, 1246 flow. Second operand has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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) [2023-11-29 07:11:17,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:11:17,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2023-11-29 07:11:17,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:11:18,062 INFO L124 PetriNetUnfolderBase]: 361/1316 cut-off events. [2023-11-29 07:11:18,062 INFO L125 PetriNetUnfolderBase]: For 1487/1540 co-relation queries the response was YES. [2023-11-29 07:11:18,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3655 conditions, 1316 events. 361/1316 cut-off events. For 1487/1540 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 8354 event pairs, 87 based on Foata normal form. 2/1282 useless extension candidates. Maximal degree in co-relation 3454. Up to 610 conditions per place. [2023-11-29 07:11:18,075 INFO L140 encePairwiseOnDemand]: 92/107 looper letters, 100 selfloop transitions, 64 changer transitions 10/281 dead transitions. [2023-11-29 07:11:18,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 281 transitions, 1934 flow [2023-11-29 07:11:18,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:11:18,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 07:11:18,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 535 transitions. [2023-11-29 07:11:18,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2023-11-29 07:11:18,078 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 535 transitions. [2023-11-29 07:11:18,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 535 transitions. [2023-11-29 07:11:18,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:11:18,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 535 transitions. [2023-11-29 07:11:18,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.16666666666667) internal successors, (535), 6 states have internal predecessors, (535), 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) [2023-11-29 07:11:18,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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) [2023-11-29 07:11:18,083 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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) [2023-11-29 07:11:18,083 INFO L175 Difference]: Start difference. First operand has 179 places, 220 transitions, 1246 flow. Second operand 6 states and 535 transitions. [2023-11-29 07:11:18,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 281 transitions, 1934 flow [2023-11-29 07:11:18,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 281 transitions, 1916 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-29 07:11:18,106 INFO L231 Difference]: Finished difference. Result has 189 places, 267 transitions, 1814 flow [2023-11-29 07:11:18,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=1228, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1814, PETRI_PLACES=189, PETRI_TRANSITIONS=267} [2023-11-29 07:11:18,107 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 83 predicate places. [2023-11-29 07:11:18,107 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 267 transitions, 1814 flow [2023-11-29 07:11:18,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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) [2023-11-29 07:11:18,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:18,108 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:18,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 07:11:18,108 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:18,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:18,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1650884050, now seen corresponding path program 1 times [2023-11-29 07:11:18,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:18,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961213760] [2023-11-29 07:11:18,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:18,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:28,600 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:28,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:28,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961213760] [2023-11-29 07:11:28,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961213760] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:11:28,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76648471] [2023-11-29 07:11:28,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:28,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:28,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:28,602 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:28,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 07:11:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:28,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 61 conjunts are in the unsatisfiable core [2023-11-29 07:11:28,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:29,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 07:11:29,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 07:11:29,435 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-29 07:11:29,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2023-11-29 07:11:29,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 07:11:29,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 07:11:29,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 07:11:29,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:11:29,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:11:29,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:11:29,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:11:29,949 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:11:29,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2023-11-29 07:11:29,969 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 07:11:29,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:11:31,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:11:31,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-11-29 07:11:32,053 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:11:32,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76648471] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 07:11:32,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:11:32,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [33, 23] total 61 [2023-11-29 07:11:32,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114261165] [2023-11-29 07:11:32,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:11:32,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:11:32,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:32,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:11:32,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=3493, Unknown=0, NotChecked=0, Total=3782 [2023-11-29 07:11:34,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-11-29 07:11:34,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 267 transitions, 1814 flow. Second operand has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:11:34,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:11:34,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-11-29 07:11:34,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:11:37,583 INFO L124 PetriNetUnfolderBase]: 461/1663 cut-off events. [2023-11-29 07:11:37,583 INFO L125 PetriNetUnfolderBase]: For 3014/3095 co-relation queries the response was YES. [2023-11-29 07:11:37,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5361 conditions, 1663 events. 461/1663 cut-off events. For 3014/3095 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11231 event pairs, 12 based on Foata normal form. 48/1695 useless extension candidates. Maximal degree in co-relation 5143. Up to 528 conditions per place. [2023-11-29 07:11:37,597 INFO L140 encePairwiseOnDemand]: 84/107 looper letters, 187 selfloop transitions, 81 changer transitions 56/426 dead transitions. [2023-11-29 07:11:37,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 426 transitions, 3616 flow [2023-11-29 07:11:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:11:37,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-29 07:11:37,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1158 transitions. [2023-11-29 07:11:37,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7730307076101469 [2023-11-29 07:11:37,602 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1158 transitions. [2023-11-29 07:11:37,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1158 transitions. [2023-11-29 07:11:37,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:11:37,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1158 transitions. [2023-11-29 07:11:37,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 82.71428571428571) internal successors, (1158), 14 states have internal predecessors, (1158), 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) [2023-11-29 07:11:37,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 107.0) internal successors, (1605), 15 states have internal predecessors, (1605), 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) [2023-11-29 07:11:37,609 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 107.0) internal successors, (1605), 15 states have internal predecessors, (1605), 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) [2023-11-29 07:11:37,609 INFO L175 Difference]: Start difference. First operand has 189 places, 267 transitions, 1814 flow. Second operand 14 states and 1158 transitions. [2023-11-29 07:11:37,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 426 transitions, 3616 flow [2023-11-29 07:11:37,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 426 transitions, 3530 flow, removed 43 selfloop flow, removed 0 redundant places. [2023-11-29 07:11:37,638 INFO L231 Difference]: Finished difference. Result has 210 places, 307 transitions, 2402 flow [2023-11-29 07:11:37,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=1740, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2402, PETRI_PLACES=210, PETRI_TRANSITIONS=307} [2023-11-29 07:11:37,639 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 104 predicate places. [2023-11-29 07:11:37,639 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 307 transitions, 2402 flow [2023-11-29 07:11:37,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:11:37,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:37,640 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:37,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 07:11:37,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:37,841 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:37,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:37,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1751625844, now seen corresponding path program 2 times [2023-11-29 07:11:37,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:37,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383149926] [2023-11-29 07:11:37,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:37,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:44,728 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:44,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:44,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383149926] [2023-11-29 07:11:44,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383149926] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:11:44,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381217617] [2023-11-29 07:11:44,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:11:44,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:44,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:44,730 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:44,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 07:11:44,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 07:11:44,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:11:44,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 07:11:44,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:44,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 07:11:44,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 07:11:44,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 07:11:44,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 07:11:45,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 07:11:45,233 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-29 07:11:45,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2023-11-29 07:11:45,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:11:45,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:11:45,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:11:45,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:11:45,463 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:11:45,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2023-11-29 07:11:45,530 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:11:45,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:11:45,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381217617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:11:45,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:11:45,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [33] total 41 [2023-11-29 07:11:45,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674564321] [2023-11-29 07:11:45,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:11:45,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:11:45,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:45,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:11:45,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1572, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 07:11:45,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-11-29 07:11:45,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 307 transitions, 2402 flow. Second operand has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:11:45,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:11:45,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-11-29 07:11:45,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:11:46,529 INFO L124 PetriNetUnfolderBase]: 430/1570 cut-off events. [2023-11-29 07:11:46,529 INFO L125 PetriNetUnfolderBase]: For 4582/4702 co-relation queries the response was YES. [2023-11-29 07:11:46,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5965 conditions, 1570 events. 430/1570 cut-off events. For 4582/4702 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 10571 event pairs, 45 based on Foata normal form. 64/1611 useless extension candidates. Maximal degree in co-relation 5738. Up to 601 conditions per place. [2023-11-29 07:11:46,544 INFO L140 encePairwiseOnDemand]: 87/107 looper letters, 156 selfloop transitions, 78 changer transitions 32/368 dead transitions. [2023-11-29 07:11:46,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 368 transitions, 3441 flow [2023-11-29 07:11:46,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:11:46,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 07:11:46,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 761 transitions. [2023-11-29 07:11:46,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7902388369678089 [2023-11-29 07:11:46,548 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 761 transitions. [2023-11-29 07:11:46,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 761 transitions. [2023-11-29 07:11:46,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:11:46,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 761 transitions. [2023-11-29 07:11:46,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 84.55555555555556) internal successors, (761), 9 states have internal predecessors, (761), 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) [2023-11-29 07:11:46,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2023-11-29 07:11:46,554 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2023-11-29 07:11:46,555 INFO L175 Difference]: Start difference. First operand has 210 places, 307 transitions, 2402 flow. Second operand 9 states and 761 transitions. [2023-11-29 07:11:46,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 368 transitions, 3441 flow [2023-11-29 07:11:46,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 368 transitions, 3421 flow, removed 10 selfloop flow, removed 0 redundant places. [2023-11-29 07:11:46,611 INFO L231 Difference]: Finished difference. Result has 217 places, 304 transitions, 2539 flow [2023-11-29 07:11:46,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=2382, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2539, PETRI_PLACES=217, PETRI_TRANSITIONS=304} [2023-11-29 07:11:46,613 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 111 predicate places. [2023-11-29 07:11:46,613 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 304 transitions, 2539 flow [2023-11-29 07:11:46,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:11:46,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:46,614 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:46,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 07:11:46,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 07:11:46,815 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:46,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:46,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1906211969, now seen corresponding path program 1 times [2023-11-29 07:11:46,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:46,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222209604] [2023-11-29 07:11:46,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:46,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:49,122 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:11:49,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:49,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222209604] [2023-11-29 07:11:49,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222209604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:11:49,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:11:49,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 07:11:49,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463030907] [2023-11-29 07:11:49,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:11:49,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:11:49,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:49,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:11:49,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:11:49,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 107 [2023-11-29 07:11:49,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 304 transitions, 2539 flow. Second operand has 11 states, 11 states have (on average 77.45454545454545) internal successors, (852), 11 states have internal predecessors, (852), 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) [2023-11-29 07:11:49,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:11:49,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 107 [2023-11-29 07:11:49,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:11:50,743 INFO L124 PetriNetUnfolderBase]: 395/1512 cut-off events. [2023-11-29 07:11:50,744 INFO L125 PetriNetUnfolderBase]: For 5191/5312 co-relation queries the response was YES. [2023-11-29 07:11:50,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5852 conditions, 1512 events. 395/1512 cut-off events. For 5191/5312 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 10230 event pairs, 16 based on Foata normal form. 32/1533 useless extension candidates. Maximal degree in co-relation 5744. Up to 356 conditions per place. [2023-11-29 07:11:50,758 INFO L140 encePairwiseOnDemand]: 88/107 looper letters, 189 selfloop transitions, 92 changer transitions 32/441 dead transitions. [2023-11-29 07:11:50,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 441 transitions, 4487 flow [2023-11-29 07:11:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:11:50,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 07:11:50,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1116 transitions. [2023-11-29 07:11:50,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8023005032350827 [2023-11-29 07:11:50,760 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1116 transitions. [2023-11-29 07:11:50,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1116 transitions. [2023-11-29 07:11:50,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:11:50,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1116 transitions. [2023-11-29 07:11:50,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 85.84615384615384) internal successors, (1116), 13 states have internal predecessors, (1116), 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) [2023-11-29 07:11:50,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2023-11-29 07:11:50,767 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2023-11-29 07:11:50,767 INFO L175 Difference]: Start difference. First operand has 217 places, 304 transitions, 2539 flow. Second operand 13 states and 1116 transitions. [2023-11-29 07:11:50,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 441 transitions, 4487 flow [2023-11-29 07:11:50,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 441 transitions, 4323 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-11-29 07:11:50,817 INFO L231 Difference]: Finished difference. Result has 228 places, 341 transitions, 3165 flow [2023-11-29 07:11:50,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=2448, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3165, PETRI_PLACES=228, PETRI_TRANSITIONS=341} [2023-11-29 07:11:50,818 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 122 predicate places. [2023-11-29 07:11:50,819 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 341 transitions, 3165 flow [2023-11-29 07:11:50,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 77.45454545454545) internal successors, (852), 11 states have internal predecessors, (852), 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) [2023-11-29 07:11:50,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:50,820 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:50,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 07:11:50,820 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:50,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:50,821 INFO L85 PathProgramCache]: Analyzing trace with hash 92928852, now seen corresponding path program 3 times [2023-11-29 07:11:50,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:50,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361734332] [2023-11-29 07:11:50,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:50,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:51,805 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:11:51,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:51,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361734332] [2023-11-29 07:11:51,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361734332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:11:51,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:11:51,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 07:11:51,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526484489] [2023-11-29 07:11:51,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:11:51,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:11:51,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:51,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:11:51,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:11:52,228 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 107 [2023-11-29 07:11:52,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 341 transitions, 3165 flow. Second operand has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 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) [2023-11-29 07:11:52,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:11:52,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 107 [2023-11-29 07:11:52,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:11:53,270 INFO L124 PetriNetUnfolderBase]: 476/1688 cut-off events. [2023-11-29 07:11:53,270 INFO L125 PetriNetUnfolderBase]: For 7489/7664 co-relation queries the response was YES. [2023-11-29 07:11:53,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7243 conditions, 1688 events. 476/1688 cut-off events. For 7489/7664 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 11417 event pairs, 79 based on Foata normal form. 95/1759 useless extension candidates. Maximal degree in co-relation 7007. Up to 710 conditions per place. [2023-11-29 07:11:53,286 INFO L140 encePairwiseOnDemand]: 87/107 looper letters, 186 selfloop transitions, 111 changer transitions 21/416 dead transitions. [2023-11-29 07:11:53,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 416 transitions, 4522 flow [2023-11-29 07:11:53,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:11:53,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 07:11:53,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 967 transitions. [2023-11-29 07:11:53,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7531152647975078 [2023-11-29 07:11:53,288 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 967 transitions. [2023-11-29 07:11:53,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 967 transitions. [2023-11-29 07:11:53,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:11:53,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 967 transitions. [2023-11-29 07:11:53,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 80.58333333333333) internal successors, (967), 12 states have internal predecessors, (967), 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) [2023-11-29 07:11:53,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 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) [2023-11-29 07:11:53,294 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 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) [2023-11-29 07:11:53,294 INFO L175 Difference]: Start difference. First operand has 228 places, 341 transitions, 3165 flow. Second operand 12 states and 967 transitions. [2023-11-29 07:11:53,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 416 transitions, 4522 flow [2023-11-29 07:11:53,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 416 transitions, 4509 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-11-29 07:11:53,343 INFO L231 Difference]: Finished difference. Result has 241 places, 356 transitions, 3632 flow [2023-11-29 07:11:53,344 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=3156, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3632, PETRI_PLACES=241, PETRI_TRANSITIONS=356} [2023-11-29 07:11:53,344 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 135 predicate places. [2023-11-29 07:11:53,345 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 356 transitions, 3632 flow [2023-11-29 07:11:53,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 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) [2023-11-29 07:11:53,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:53,345 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:53,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 07:11:53,346 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:53,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:53,346 INFO L85 PathProgramCache]: Analyzing trace with hash -2052106174, now seen corresponding path program 4 times [2023-11-29 07:11:53,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:53,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162362945] [2023-11-29 07:11:53,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:53,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:54,229 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:11:54,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:54,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162362945] [2023-11-29 07:11:54,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162362945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:11:54,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:11:54,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 07:11:54,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309324364] [2023-11-29 07:11:54,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:11:54,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:11:54,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:54,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:11:54,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:11:54,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-11-29 07:11:54,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 356 transitions, 3632 flow. Second operand has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:11:54,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:11:54,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-11-29 07:11:54,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:11:55,948 INFO L124 PetriNetUnfolderBase]: 799/2827 cut-off events. [2023-11-29 07:11:55,948 INFO L125 PetriNetUnfolderBase]: For 14467/14701 co-relation queries the response was YES. [2023-11-29 07:11:55,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12622 conditions, 2827 events. 799/2827 cut-off events. For 14467/14701 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 22927 event pairs, 83 based on Foata normal form. 92/2886 useless extension candidates. Maximal degree in co-relation 12381. Up to 697 conditions per place. [2023-11-29 07:11:55,978 INFO L140 encePairwiseOnDemand]: 88/107 looper letters, 376 selfloop transitions, 116 changer transitions 13/611 dead transitions. [2023-11-29 07:11:55,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 611 transitions, 7670 flow [2023-11-29 07:11:55,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:11:55,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 07:11:55,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 931 transitions. [2023-11-29 07:11:55,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7909940526762956 [2023-11-29 07:11:55,980 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 931 transitions. [2023-11-29 07:11:55,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 931 transitions. [2023-11-29 07:11:55,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:11:55,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 931 transitions. [2023-11-29 07:11:55,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.63636363636364) internal successors, (931), 11 states have internal predecessors, (931), 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) [2023-11-29 07:11:55,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:11:55,983 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:11:55,983 INFO L175 Difference]: Start difference. First operand has 241 places, 356 transitions, 3632 flow. Second operand 11 states and 931 transitions. [2023-11-29 07:11:55,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 611 transitions, 7670 flow [2023-11-29 07:11:56,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 611 transitions, 7337 flow, removed 13 selfloop flow, removed 4 redundant places. [2023-11-29 07:11:56,079 INFO L231 Difference]: Finished difference. Result has 255 places, 447 transitions, 5319 flow [2023-11-29 07:11:56,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=3450, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5319, PETRI_PLACES=255, PETRI_TRANSITIONS=447} [2023-11-29 07:11:56,081 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 149 predicate places. [2023-11-29 07:11:56,081 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 447 transitions, 5319 flow [2023-11-29 07:11:56,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:11:56,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:56,082 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:56,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 07:11:56,082 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:56,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:56,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1061229908, now seen corresponding path program 5 times [2023-11-29 07:11:56,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:56,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503655253] [2023-11-29 07:11:56,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:56,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:02,454 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:12:02,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:12:02,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503655253] [2023-11-29 07:12:02,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503655253] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:12:02,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529565608] [2023-11-29 07:12:02,455 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 07:12:02,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:12:02,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:12:02,456 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:12:02,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 07:12:02,657 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2023-11-29 07:12:02,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:12:02,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-29 07:12:02,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:12:02,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 07:12:02,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 07:12:02,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 07:12:03,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 07:12:03,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 07:12:03,198 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-29 07:12:03,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2023-11-29 07:12:03,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:12:03,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:12:03,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:12:03,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:12:03,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:12:03,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2023-11-29 07:12:03,452 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-29 07:12:03,452 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:12:04,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2023-11-29 07:12:04,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2023-11-29 07:12:04,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2023-11-29 07:12:04,591 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:12:04,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529565608] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 07:12:04,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:12:04,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [32, 17] total 55 [2023-11-29 07:12:04,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129448849] [2023-11-29 07:12:04,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:12:04,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:12:04,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:12:04,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:12:04,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=2850, Unknown=0, NotChecked=0, Total=3080 [2023-11-29 07:12:06,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 107 [2023-11-29 07:12:06,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 447 transitions, 5319 flow. Second operand has 10 states, 10 states have (on average 72.2) internal successors, (722), 10 states have internal predecessors, (722), 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) [2023-11-29 07:12:06,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:12:06,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 107 [2023-11-29 07:12:06,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:12:10,571 INFO L124 PetriNetUnfolderBase]: 1337/4334 cut-off events. [2023-11-29 07:12:10,572 INFO L125 PetriNetUnfolderBase]: For 26818/27110 co-relation queries the response was YES. [2023-11-29 07:12:10,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20835 conditions, 4334 events. 1337/4334 cut-off events. For 26818/27110 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 37332 event pairs, 79 based on Foata normal form. 110/4401 useless extension candidates. Maximal degree in co-relation 20585. Up to 1594 conditions per place. [2023-11-29 07:12:10,606 INFO L140 encePairwiseOnDemand]: 79/107 looper letters, 433 selfloop transitions, 209 changer transitions 14/760 dead transitions. [2023-11-29 07:12:10,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 760 transitions, 10596 flow [2023-11-29 07:12:10,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 07:12:10,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 07:12:10,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1638 transitions. [2023-11-29 07:12:10,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7289719626168224 [2023-11-29 07:12:10,608 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1638 transitions. [2023-11-29 07:12:10,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1638 transitions. [2023-11-29 07:12:10,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:12:10,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1638 transitions. [2023-11-29 07:12:10,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 78.0) internal successors, (1638), 21 states have internal predecessors, (1638), 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) [2023-11-29 07:12:10,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 107.0) internal successors, (2354), 22 states have internal predecessors, (2354), 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) [2023-11-29 07:12:10,613 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 107.0) internal successors, (2354), 22 states have internal predecessors, (2354), 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) [2023-11-29 07:12:10,613 INFO L175 Difference]: Start difference. First operand has 255 places, 447 transitions, 5319 flow. Second operand 21 states and 1638 transitions. [2023-11-29 07:12:10,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 760 transitions, 10596 flow [2023-11-29 07:12:10,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 760 transitions, 10495 flow, removed 41 selfloop flow, removed 1 redundant places. [2023-11-29 07:12:10,797 INFO L231 Difference]: Finished difference. Result has 287 places, 598 transitions, 8398 flow [2023-11-29 07:12:10,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=5265, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=8398, PETRI_PLACES=287, PETRI_TRANSITIONS=598} [2023-11-29 07:12:10,798 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 181 predicate places. [2023-11-29 07:12:10,798 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 598 transitions, 8398 flow [2023-11-29 07:12:10,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.2) internal successors, (722), 10 states have internal predecessors, (722), 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) [2023-11-29 07:12:10,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:12:10,799 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:12:10,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 07:12:10,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 07:12:11,000 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:12:11,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:11,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1383244501, now seen corresponding path program 2 times [2023-11-29 07:12:11,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:12:11,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712093585] [2023-11-29 07:12:11,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:11,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:12:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:12,996 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:12:12,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:12:12,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712093585] [2023-11-29 07:12:12,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712093585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:12:12,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:12:12,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 07:12:12,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877318232] [2023-11-29 07:12:12,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:12:12,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:12:12,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:12:12,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:12:12,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:12:13,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 107 [2023-11-29 07:12:13,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 598 transitions, 8398 flow. Second operand has 10 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 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) [2023-11-29 07:12:13,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:12:13,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 107 [2023-11-29 07:12:13,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:12:15,239 INFO L124 PetriNetUnfolderBase]: 1087/3893 cut-off events. [2023-11-29 07:12:15,239 INFO L125 PetriNetUnfolderBase]: For 32002/32406 co-relation queries the response was YES. [2023-11-29 07:12:15,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20321 conditions, 3893 events. 1087/3893 cut-off events. For 32002/32406 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 34502 event pairs, 60 based on Foata normal form. 118/3984 useless extension candidates. Maximal degree in co-relation 20096. Up to 884 conditions per place. [2023-11-29 07:12:15,282 INFO L140 encePairwiseOnDemand]: 90/107 looper letters, 309 selfloop transitions, 215 changer transitions 16/724 dead transitions. [2023-11-29 07:12:15,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 724 transitions, 11440 flow [2023-11-29 07:12:15,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:12:15,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 07:12:15,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 954 transitions. [2023-11-29 07:12:15,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.81053525913339 [2023-11-29 07:12:15,284 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 954 transitions. [2023-11-29 07:12:15,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 954 transitions. [2023-11-29 07:12:15,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:12:15,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 954 transitions. [2023-11-29 07:12:15,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.72727272727273) internal successors, (954), 11 states have internal predecessors, (954), 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) [2023-11-29 07:12:15,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:12:15,288 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:12:15,288 INFO L175 Difference]: Start difference. First operand has 287 places, 598 transitions, 8398 flow. Second operand 11 states and 954 transitions. [2023-11-29 07:12:15,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 724 transitions, 11440 flow [2023-11-29 07:12:15,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 724 transitions, 11308 flow, removed 66 selfloop flow, removed 0 redundant places. [2023-11-29 07:12:15,587 INFO L231 Difference]: Finished difference. Result has 301 places, 634 transitions, 9555 flow [2023-11-29 07:12:15,588 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=8288, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9555, PETRI_PLACES=301, PETRI_TRANSITIONS=634} [2023-11-29 07:12:15,589 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 195 predicate places. [2023-11-29 07:12:15,589 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 634 transitions, 9555 flow [2023-11-29 07:12:15,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 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) [2023-11-29 07:12:15,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:12:15,589 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:12:15,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 07:12:15,590 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:12:15,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:15,590 INFO L85 PathProgramCache]: Analyzing trace with hash -648688530, now seen corresponding path program 6 times [2023-11-29 07:12:15,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:12:15,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308140413] [2023-11-29 07:12:15,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:15,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:12:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:12:16,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:12:16,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308140413] [2023-11-29 07:12:16,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308140413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:12:16,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:12:16,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 07:12:16,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92715103] [2023-11-29 07:12:16,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:12:16,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:12:16,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:12:16,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:12:16,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:12:16,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-11-29 07:12:16,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 634 transitions, 9555 flow. Second operand has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:12:16,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:12:16,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-11-29 07:12:16,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:12:18,545 INFO L124 PetriNetUnfolderBase]: 1338/4404 cut-off events. [2023-11-29 07:12:18,546 INFO L125 PetriNetUnfolderBase]: For 43070/43474 co-relation queries the response was YES. [2023-11-29 07:12:18,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24909 conditions, 4404 events. 1338/4404 cut-off events. For 43070/43474 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 38821 event pairs, 180 based on Foata normal form. 162/4496 useless extension candidates. Maximal degree in co-relation 24640. Up to 1876 conditions per place. [2023-11-29 07:12:18,588 INFO L140 encePairwiseOnDemand]: 87/107 looper letters, 280 selfloop transitions, 290 changer transitions 9/704 dead transitions. [2023-11-29 07:12:18,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 704 transitions, 11779 flow [2023-11-29 07:12:18,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:12:18,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 07:12:18,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 816 transitions. [2023-11-29 07:12:18,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7626168224299066 [2023-11-29 07:12:18,590 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 816 transitions. [2023-11-29 07:12:18,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 816 transitions. [2023-11-29 07:12:18,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:12:18,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 816 transitions. [2023-11-29 07:12:18,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 81.6) internal successors, (816), 10 states have internal predecessors, (816), 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) [2023-11-29 07:12:18,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-29 07:12:18,593 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-29 07:12:18,593 INFO L175 Difference]: Start difference. First operand has 301 places, 634 transitions, 9555 flow. Second operand 10 states and 816 transitions. [2023-11-29 07:12:18,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 704 transitions, 11779 flow [2023-11-29 07:12:18,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 704 transitions, 11447 flow, removed 9 selfloop flow, removed 6 redundant places. [2023-11-29 07:12:18,925 INFO L231 Difference]: Finished difference. Result has 309 places, 663 transitions, 10649 flow [2023-11-29 07:12:18,926 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=9266, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=264, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10649, PETRI_PLACES=309, PETRI_TRANSITIONS=663} [2023-11-29 07:12:18,926 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 203 predicate places. [2023-11-29 07:12:18,926 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 663 transitions, 10649 flow [2023-11-29 07:12:18,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:12:18,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:12:18,927 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:12:18,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 07:12:18,927 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:12:18,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:18,927 INFO L85 PathProgramCache]: Analyzing trace with hash -2039162013, now seen corresponding path program 3 times [2023-11-29 07:12:18,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:12:18,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129774303] [2023-11-29 07:12:18,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:18,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:12:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:12:21,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:12:21,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129774303] [2023-11-29 07:12:21,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129774303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:12:21,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:12:21,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 07:12:21,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702177712] [2023-11-29 07:12:21,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:12:21,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:12:21,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:12:21,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:12:21,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:12:21,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 107 [2023-11-29 07:12:21,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 663 transitions, 10649 flow. Second operand has 11 states, 11 states have (on average 77.54545454545455) internal successors, (853), 11 states have internal predecessors, (853), 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) [2023-11-29 07:12:21,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:12:21,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 107 [2023-11-29 07:12:21,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:12:23,436 INFO L124 PetriNetUnfolderBase]: 1200/4235 cut-off events. [2023-11-29 07:12:23,436 INFO L125 PetriNetUnfolderBase]: For 46204/46656 co-relation queries the response was YES. [2023-11-29 07:12:23,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24260 conditions, 4235 events. 1200/4235 cut-off events. For 46204/46656 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 38114 event pairs, 55 based on Foata normal form. 123/4326 useless extension candidates. Maximal degree in co-relation 23986. Up to 940 conditions per place. [2023-11-29 07:12:23,486 INFO L140 encePairwiseOnDemand]: 89/107 looper letters, 367 selfloop transitions, 255 changer transitions 16/808 dead transitions. [2023-11-29 07:12:23,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 808 transitions, 14562 flow [2023-11-29 07:12:23,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:12:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 07:12:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1013 transitions. [2023-11-29 07:12:23,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7889408099688473 [2023-11-29 07:12:23,487 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1013 transitions. [2023-11-29 07:12:23,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1013 transitions. [2023-11-29 07:12:23,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:12:23,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1013 transitions. [2023-11-29 07:12:23,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 84.41666666666667) internal successors, (1013), 12 states have internal predecessors, (1013), 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) [2023-11-29 07:12:23,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 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) [2023-11-29 07:12:23,491 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 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) [2023-11-29 07:12:23,491 INFO L175 Difference]: Start difference. First operand has 309 places, 663 transitions, 10649 flow. Second operand 12 states and 1013 transitions. [2023-11-29 07:12:23,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 808 transitions, 14562 flow [2023-11-29 07:12:23,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 808 transitions, 14398 flow, removed 64 selfloop flow, removed 1 redundant places. [2023-11-29 07:12:23,929 INFO L231 Difference]: Finished difference. Result has 326 places, 707 transitions, 12282 flow [2023-11-29 07:12:23,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=10521, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=663, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=212, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12282, PETRI_PLACES=326, PETRI_TRANSITIONS=707} [2023-11-29 07:12:23,930 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 220 predicate places. [2023-11-29 07:12:23,930 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 707 transitions, 12282 flow [2023-11-29 07:12:23,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 77.54545454545455) internal successors, (853), 11 states have internal predecessors, (853), 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) [2023-11-29 07:12:23,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:12:23,931 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:12:23,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 07:12:23,931 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:12:23,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:23,932 INFO L85 PathProgramCache]: Analyzing trace with hash 543612757, now seen corresponding path program 4 times [2023-11-29 07:12:23,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:12:23,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944926443] [2023-11-29 07:12:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:23,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:12:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:25,611 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:12:25,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:12:25,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944926443] [2023-11-29 07:12:25,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944926443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:12:25,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:12:25,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 07:12:25,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901117263] [2023-11-29 07:12:25,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:12:25,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:12:25,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:12:25,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:12:25,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:12:26,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 107 [2023-11-29 07:12:26,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 707 transitions, 12282 flow. Second operand has 10 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 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) [2023-11-29 07:12:26,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:12:26,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 107 [2023-11-29 07:12:26,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:12:27,727 INFO L124 PetriNetUnfolderBase]: 1146/4043 cut-off events. [2023-11-29 07:12:27,727 INFO L125 PetriNetUnfolderBase]: For 51307/51855 co-relation queries the response was YES. [2023-11-29 07:12:27,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24375 conditions, 4043 events. 1146/4043 cut-off events. For 51307/51855 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 36028 event pairs, 39 based on Foata normal form. 125/4139 useless extension candidates. Maximal degree in co-relation 24119. Up to 1019 conditions per place. [2023-11-29 07:12:27,769 INFO L140 encePairwiseOnDemand]: 90/107 looper letters, 443 selfloop transitions, 218 changer transitions 12/860 dead transitions. [2023-11-29 07:12:27,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 860 transitions, 15707 flow [2023-11-29 07:12:27,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 07:12:27,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 07:12:27,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1352 transitions. [2023-11-29 07:12:27,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7897196261682243 [2023-11-29 07:12:27,772 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1352 transitions. [2023-11-29 07:12:27,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1352 transitions. [2023-11-29 07:12:27,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:12:27,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1352 transitions. [2023-11-29 07:12:27,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 84.5) internal successors, (1352), 16 states have internal predecessors, (1352), 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) [2023-11-29 07:12:27,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 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) [2023-11-29 07:12:27,777 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 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) [2023-11-29 07:12:27,777 INFO L175 Difference]: Start difference. First operand has 326 places, 707 transitions, 12282 flow. Second operand 16 states and 1352 transitions. [2023-11-29 07:12:27,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 860 transitions, 15707 flow [2023-11-29 07:12:28,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 860 transitions, 15121 flow, removed 22 selfloop flow, removed 6 redundant places. [2023-11-29 07:12:28,235 INFO L231 Difference]: Finished difference. Result has 346 places, 746 transitions, 13378 flow [2023-11-29 07:12:28,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=11760, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=179, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=503, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=13378, PETRI_PLACES=346, PETRI_TRANSITIONS=746} [2023-11-29 07:12:28,236 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 240 predicate places. [2023-11-29 07:12:28,236 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 746 transitions, 13378 flow [2023-11-29 07:12:28,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 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) [2023-11-29 07:12:28,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:12:28,237 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:12:28,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 07:12:28,237 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:12:28,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:28,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1636279784, now seen corresponding path program 7 times [2023-11-29 07:12:28,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:12:28,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166881331] [2023-11-29 07:12:28,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:28,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:12:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:34,037 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:12:34,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:12:34,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166881331] [2023-11-29 07:12:34,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166881331] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:12:34,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588412287] [2023-11-29 07:12:34,038 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 07:12:34,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:12:34,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:12:34,039 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:12:34,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 07:12:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:34,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-29 07:12:34,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:12:34,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 07:12:34,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 07:12:34,771 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-29 07:12:34,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2023-11-29 07:12:34,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 07:12:34,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 07:12:35,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 07:12:35,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:12:35,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:12:35,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:12:35,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:12:35,254 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:12:35,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2023-11-29 07:12:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 07:12:35,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:12:37,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2023-11-29 07:12:37,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2023-11-29 07:12:37,238 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:12:37,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588412287] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 07:12:37,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:12:37,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [32, 25] total 63 [2023-11-29 07:12:37,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436504151] [2023-11-29 07:12:37,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:12:37,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:12:37,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:12:37,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:12:37,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=3770, Unknown=0, NotChecked=0, Total=4032 [2023-11-29 07:12:39,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 107 [2023-11-29 07:12:39,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 746 transitions, 13378 flow. Second operand has 10 states, 10 states have (on average 72.2) internal successors, (722), 10 states have internal predecessors, (722), 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) [2023-11-29 07:12:39,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:12:39,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 107 [2023-11-29 07:12:39,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:12:45,467 INFO L124 PetriNetUnfolderBase]: 1485/4756 cut-off events. [2023-11-29 07:12:45,467 INFO L125 PetriNetUnfolderBase]: For 64051/64386 co-relation queries the response was YES. [2023-11-29 07:12:45,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30040 conditions, 4756 events. 1485/4756 cut-off events. For 64051/64386 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 41731 event pairs, 88 based on Foata normal form. 151/4856 useless extension candidates. Maximal degree in co-relation 29861. Up to 1067 conditions per place. [2023-11-29 07:12:45,524 INFO L140 encePairwiseOnDemand]: 85/107 looper letters, 493 selfloop transitions, 354 changer transitions 7/969 dead transitions. [2023-11-29 07:12:45,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 969 transitions, 18064 flow [2023-11-29 07:12:45,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 07:12:45,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 07:12:45,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1438 transitions. [2023-11-29 07:12:45,527 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7466251298026999 [2023-11-29 07:12:45,527 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1438 transitions. [2023-11-29 07:12:45,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1438 transitions. [2023-11-29 07:12:45,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:12:45,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1438 transitions. [2023-11-29 07:12:45,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 79.88888888888889) internal successors, (1438), 18 states have internal predecessors, (1438), 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) [2023-11-29 07:12:45,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 107.0) internal successors, (2033), 19 states have internal predecessors, (2033), 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) [2023-11-29 07:12:45,533 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 107.0) internal successors, (2033), 19 states have internal predecessors, (2033), 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) [2023-11-29 07:12:45,533 INFO L175 Difference]: Start difference. First operand has 346 places, 746 transitions, 13378 flow. Second operand 18 states and 1438 transitions. [2023-11-29 07:12:45,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 969 transitions, 18064 flow [2023-11-29 07:12:46,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 969 transitions, 17898 flow, removed 43 selfloop flow, removed 5 redundant places. [2023-11-29 07:12:46,142 INFO L231 Difference]: Finished difference. Result has 366 places, 784 transitions, 14842 flow [2023-11-29 07:12:46,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=13222, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=746, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=317, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=14842, PETRI_PLACES=366, PETRI_TRANSITIONS=784} [2023-11-29 07:12:46,143 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 260 predicate places. [2023-11-29 07:12:46,143 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 784 transitions, 14842 flow [2023-11-29 07:12:46,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.2) internal successors, (722), 10 states have internal predecessors, (722), 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) [2023-11-29 07:12:46,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:12:46,144 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:12:46,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 07:12:46,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:12:46,345 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:12:46,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:46,345 INFO L85 PathProgramCache]: Analyzing trace with hash -169999874, now seen corresponding path program 8 times [2023-11-29 07:12:46,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:12:46,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674689413] [2023-11-29 07:12:46,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:46,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:12:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:52,616 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:12:52,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:12:52,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674689413] [2023-11-29 07:12:52,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674689413] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:12:52,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003614169] [2023-11-29 07:12:52,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:12:52,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:12:52,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:12:52,618 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:12:52,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 07:12:52,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 07:12:52,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:12:52,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 07:12:52,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:12:52,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 07:12:52,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 07:12:52,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 07:12:53,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 07:12:53,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 07:12:53,196 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-29 07:12:53,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2023-11-29 07:12:53,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:12:53,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:12:53,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:12:53,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:12:53,408 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:12:53,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2023-11-29 07:12:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:12:53,426 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:12:53,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003614169] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:12:53,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:12:53,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [33] total 40 [2023-11-29 07:12:53,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527508834] [2023-11-29 07:12:53,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:12:53,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:12:53,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:12:53,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:12:53,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1498, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 07:12:53,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-11-29 07:12:53,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 784 transitions, 14842 flow. Second operand has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:12:53,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:12:53,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-11-29 07:12:53,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:12:55,640 INFO L124 PetriNetUnfolderBase]: 1515/4909 cut-off events. [2023-11-29 07:12:55,640 INFO L125 PetriNetUnfolderBase]: For 77809/78259 co-relation queries the response was YES. [2023-11-29 07:12:55,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32767 conditions, 4909 events. 1515/4909 cut-off events. For 77809/78259 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 44319 event pairs, 147 based on Foata normal form. 168/5002 useless extension candidates. Maximal degree in co-relation 32585. Up to 1544 conditions per place. [2023-11-29 07:12:55,691 INFO L140 encePairwiseOnDemand]: 87/107 looper letters, 635 selfloop transitions, 189 changer transitions 29/991 dead transitions. [2023-11-29 07:12:55,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 991 transitions, 19198 flow [2023-11-29 07:12:55,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:12:55,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 07:12:55,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 947 transitions. [2023-11-29 07:12:55,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8045879354290569 [2023-11-29 07:12:55,693 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 947 transitions. [2023-11-29 07:12:55,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 947 transitions. [2023-11-29 07:12:55,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:12:55,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 947 transitions. [2023-11-29 07:12:55,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.0909090909091) internal successors, (947), 11 states have internal predecessors, (947), 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) [2023-11-29 07:12:55,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:12:55,697 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:12:55,697 INFO L175 Difference]: Start difference. First operand has 366 places, 784 transitions, 14842 flow. Second operand 11 states and 947 transitions. [2023-11-29 07:12:55,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 991 transitions, 19198 flow [2023-11-29 07:12:56,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 991 transitions, 19007 flow, removed 89 selfloop flow, removed 1 redundant places. [2023-11-29 07:12:56,409 INFO L231 Difference]: Finished difference. Result has 381 places, 821 transitions, 15982 flow [2023-11-29 07:12:56,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=14657, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=784, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=155, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=611, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15982, PETRI_PLACES=381, PETRI_TRANSITIONS=821} [2023-11-29 07:12:56,410 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 275 predicate places. [2023-11-29 07:12:56,410 INFO L495 AbstractCegarLoop]: Abstraction has has 381 places, 821 transitions, 15982 flow [2023-11-29 07:12:56,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:12:56,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:12:56,411 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:12:56,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 07:12:56,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:12:56,612 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:12:56,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:56,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1978508974, now seen corresponding path program 9 times [2023-11-29 07:12:56,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:12:56,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645595427] [2023-11-29 07:12:56,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:56,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:12:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:12:57,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:12:57,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645595427] [2023-11-29 07:12:57,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645595427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:12:57,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:12:57,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 07:12:57,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556476743] [2023-11-29 07:12:57,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:12:57,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:12:57,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:12:57,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:12:57,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:12:58,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-11-29 07:12:58,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 821 transitions, 15982 flow. Second operand has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:12:58,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:12:58,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-11-29 07:12:58,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:13:00,775 INFO L124 PetriNetUnfolderBase]: 1516/4874 cut-off events. [2023-11-29 07:13:00,776 INFO L125 PetriNetUnfolderBase]: For 89135/89621 co-relation queries the response was YES. [2023-11-29 07:13:00,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34523 conditions, 4874 events. 1516/4874 cut-off events. For 89135/89621 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 43787 event pairs, 148 based on Foata normal form. 154/4951 useless extension candidates. Maximal degree in co-relation 34329. Up to 1541 conditions per place. [2023-11-29 07:13:00,837 INFO L140 encePairwiseOnDemand]: 89/107 looper letters, 622 selfloop transitions, 216 changer transitions 7/983 dead transitions. [2023-11-29 07:13:00,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 983 transitions, 19944 flow [2023-11-29 07:13:00,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:13:00,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 07:13:00,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 918 transitions. [2023-11-29 07:13:00,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7799490229396772 [2023-11-29 07:13:00,839 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 918 transitions. [2023-11-29 07:13:00,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 918 transitions. [2023-11-29 07:13:00,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:13:00,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 918 transitions. [2023-11-29 07:13:00,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.45454545454545) internal successors, (918), 11 states have internal predecessors, (918), 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) [2023-11-29 07:13:00,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:13:00,843 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:13:00,844 INFO L175 Difference]: Start difference. First operand has 381 places, 821 transitions, 15982 flow. Second operand 11 states and 918 transitions. [2023-11-29 07:13:00,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 983 transitions, 19944 flow [2023-11-29 07:13:01,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 983 transitions, 19783 flow, removed 49 selfloop flow, removed 4 redundant places. [2023-11-29 07:13:01,719 INFO L231 Difference]: Finished difference. Result has 390 places, 848 transitions, 17196 flow [2023-11-29 07:13:01,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=15863, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=821, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=622, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17196, PETRI_PLACES=390, PETRI_TRANSITIONS=848} [2023-11-29 07:13:01,721 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 284 predicate places. [2023-11-29 07:13:01,721 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 848 transitions, 17196 flow [2023-11-29 07:13:01,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:13:01,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:13:01,722 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:01,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 07:13:01,722 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:13:01,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:01,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1537680256, now seen corresponding path program 10 times [2023-11-29 07:13:01,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:01,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051995379] [2023-11-29 07:13:01,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:01,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:07,382 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:13:07,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:07,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051995379] [2023-11-29 07:13:07,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051995379] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:13:07,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953600346] [2023-11-29 07:13:07,382 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 07:13:07,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:07,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:13:07,383 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:13:07,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 07:13:07,548 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 07:13:07,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:13:07,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-29 07:13:07,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:07,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 07:13:07,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 07:13:08,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 07:13:08,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 07:13:08,201 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-29 07:13:08,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2023-11-29 07:13:08,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 07:13:08,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:13:08,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:13:08,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:13:08,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:13:08,522 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:13:08,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2023-11-29 07:13:08,586 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 07:13:08,587 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:13:10,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2023-11-29 07:13:10,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2023-11-29 07:13:10,035 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:13:10,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953600346] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 07:13:10,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:13:10,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [32, 25] total 63 [2023-11-29 07:13:10,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808467641] [2023-11-29 07:13:10,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:13:10,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:13:10,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:10,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:13:10,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=3766, Unknown=0, NotChecked=0, Total=4032 [2023-11-29 07:13:12,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 107 [2023-11-29 07:13:12,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 848 transitions, 17196 flow. Second operand has 10 states, 10 states have (on average 72.2) internal successors, (722), 10 states have internal predecessors, (722), 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) [2023-11-29 07:13:12,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:13:12,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 107 [2023-11-29 07:13:12,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:13:18,298 INFO L124 PetriNetUnfolderBase]: 1591/5077 cut-off events. [2023-11-29 07:13:18,298 INFO L125 PetriNetUnfolderBase]: For 93228/93622 co-relation queries the response was YES. [2023-11-29 07:13:18,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35812 conditions, 5077 events. 1591/5077 cut-off events. For 93228/93622 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 45364 event pairs, 91 based on Foata normal form. 219/5237 useless extension candidates. Maximal degree in co-relation 35615. Up to 1212 conditions per place. [2023-11-29 07:13:18,359 INFO L140 encePairwiseOnDemand]: 82/107 looper letters, 514 selfloop transitions, 440 changer transitions 6/1075 dead transitions. [2023-11-29 07:13:18,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 1075 transitions, 22381 flow [2023-11-29 07:13:18,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 07:13:18,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 07:13:18,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1401 transitions. [2023-11-29 07:13:18,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7702034084661902 [2023-11-29 07:13:18,362 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1401 transitions. [2023-11-29 07:13:18,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1401 transitions. [2023-11-29 07:13:18,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:13:18,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1401 transitions. [2023-11-29 07:13:18,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 82.41176470588235) internal successors, (1401), 17 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) [2023-11-29 07:13:18,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 107.0) internal successors, (1926), 18 states have internal predecessors, (1926), 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) [2023-11-29 07:13:18,366 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 107.0) internal successors, (1926), 18 states have internal predecessors, (1926), 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) [2023-11-29 07:13:18,366 INFO L175 Difference]: Start difference. First operand has 390 places, 848 transitions, 17196 flow. Second operand 17 states and 1401 transitions. [2023-11-29 07:13:18,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 1075 transitions, 22381 flow [2023-11-29 07:13:19,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 1075 transitions, 22176 flow, removed 40 selfloop flow, removed 3 redundant places. [2023-11-29 07:13:19,266 INFO L231 Difference]: Finished difference. Result has 409 places, 897 transitions, 19079 flow [2023-11-29 07:13:19,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=17007, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=848, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=394, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=19079, PETRI_PLACES=409, PETRI_TRANSITIONS=897} [2023-11-29 07:13:19,268 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 303 predicate places. [2023-11-29 07:13:19,268 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 897 transitions, 19079 flow [2023-11-29 07:13:19,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.2) internal successors, (722), 10 states have internal predecessors, (722), 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) [2023-11-29 07:13:19,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:13:19,268 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:19,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 07:13:19,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:19,469 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:13:19,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:19,470 INFO L85 PathProgramCache]: Analyzing trace with hash -772014506, now seen corresponding path program 11 times [2023-11-29 07:13:19,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:19,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294951316] [2023-11-29 07:13:19,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:19,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:20,275 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:13:20,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:20,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294951316] [2023-11-29 07:13:20,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294951316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:13:20,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:13:20,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 07:13:20,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475735465] [2023-11-29 07:13:20,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:13:20,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:13:20,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:20,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:13:20,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:13:20,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-11-29 07:13:20,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 897 transitions, 19079 flow. Second operand has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:13:20,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:13:20,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-11-29 07:13:20,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:13:23,258 INFO L124 PetriNetUnfolderBase]: 1519/4877 cut-off events. [2023-11-29 07:13:23,258 INFO L125 PetriNetUnfolderBase]: For 102163/102579 co-relation queries the response was YES. [2023-11-29 07:13:23,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36172 conditions, 4877 events. 1519/4877 cut-off events. For 102163/102579 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 43814 event pairs, 181 based on Foata normal form. 253/5051 useless extension candidates. Maximal degree in co-relation 35969. Up to 2177 conditions per place. [2023-11-29 07:13:23,333 INFO L140 encePairwiseOnDemand]: 87/107 looper letters, 398 selfloop transitions, 386 changer transitions 7/933 dead transitions. [2023-11-29 07:13:23,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 933 transitions, 21262 flow [2023-11-29 07:13:23,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:13:23,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 07:13:23,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 899 transitions. [2023-11-29 07:13:23,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7638062871707731 [2023-11-29 07:13:23,335 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 899 transitions. [2023-11-29 07:13:23,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 899 transitions. [2023-11-29 07:13:23,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:13:23,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 899 transitions. [2023-11-29 07:13:23,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 81.72727272727273) internal successors, (899), 11 states have internal predecessors, (899), 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) [2023-11-29 07:13:23,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:13:23,340 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:13:23,341 INFO L175 Difference]: Start difference. First operand has 409 places, 897 transitions, 19079 flow. Second operand 11 states and 899 transitions. [2023-11-29 07:13:23,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 933 transitions, 21262 flow [2023-11-29 07:13:24,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 933 transitions, 21104 flow, removed 71 selfloop flow, removed 2 redundant places. [2023-11-29 07:13:24,352 INFO L231 Difference]: Finished difference. Result has 419 places, 900 transitions, 19783 flow [2023-11-29 07:13:24,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=18925, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=897, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=383, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19783, PETRI_PLACES=419, PETRI_TRANSITIONS=900} [2023-11-29 07:13:24,353 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 313 predicate places. [2023-11-29 07:13:24,353 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 900 transitions, 19783 flow [2023-11-29 07:13:24,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:13:24,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:13:24,354 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:24,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 07:13:24,354 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:13:24,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:24,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1246589438, now seen corresponding path program 12 times [2023-11-29 07:13:24,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:24,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210624990] [2023-11-29 07:13:24,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:24,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:29,922 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:13:29,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:29,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210624990] [2023-11-29 07:13:29,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210624990] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:13:29,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338531451] [2023-11-29 07:13:29,923 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 07:13:29,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:29,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:13:29,924 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:13:29,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 07:13:30,052 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-11-29 07:13:30,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:13:30,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 07:13:30,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:30,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 07:13:30,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 07:13:30,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 07:13:30,271 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-29 07:13:30,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2023-11-29 07:13:30,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 07:13:30,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 07:13:30,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:13:30,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:13:30,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:13:30,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:13:30,639 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:13:30,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2023-11-29 07:13:30,695 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:13:30,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:13:30,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338531451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:13:30,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:13:30,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [32] total 40 [2023-11-29 07:13:30,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470610442] [2023-11-29 07:13:30,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:13:30,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:13:30,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:30,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:13:30,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1505, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 07:13:31,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-11-29 07:13:31,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 900 transitions, 19783 flow. Second operand has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:13:31,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:13:31,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-11-29 07:13:31,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:13:33,726 INFO L124 PetriNetUnfolderBase]: 1636/5314 cut-off events. [2023-11-29 07:13:33,726 INFO L125 PetriNetUnfolderBase]: For 120523/120959 co-relation queries the response was YES. [2023-11-29 07:13:33,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40174 conditions, 5314 events. 1636/5314 cut-off events. For 120523/120959 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 48915 event pairs, 187 based on Foata normal form. 202/5435 useless extension candidates. Maximal degree in co-relation 39967. Up to 2214 conditions per place. [2023-11-29 07:13:33,791 INFO L140 encePairwiseOnDemand]: 87/107 looper letters, 507 selfloop transitions, 363 changer transitions 25/1037 dead transitions. [2023-11-29 07:13:33,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 1037 transitions, 24098 flow [2023-11-29 07:13:33,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:13:33,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 07:13:33,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 837 transitions. [2023-11-29 07:13:33,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7822429906542057 [2023-11-29 07:13:33,792 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 837 transitions. [2023-11-29 07:13:33,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 837 transitions. [2023-11-29 07:13:33,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:13:33,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 837 transitions. [2023-11-29 07:13:33,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 83.7) internal successors, (837), 10 states have internal predecessors, (837), 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) [2023-11-29 07:13:33,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-29 07:13:33,795 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-29 07:13:33,795 INFO L175 Difference]: Start difference. First operand has 419 places, 900 transitions, 19783 flow. Second operand 10 states and 837 transitions. [2023-11-29 07:13:33,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 1037 transitions, 24098 flow [2023-11-29 07:13:35,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 1037 transitions, 23439 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-11-29 07:13:35,112 INFO L231 Difference]: Finished difference. Result has 429 places, 944 transitions, 21351 flow [2023-11-29 07:13:35,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=19195, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=323, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=544, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=21351, PETRI_PLACES=429, PETRI_TRANSITIONS=944} [2023-11-29 07:13:35,114 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 323 predicate places. [2023-11-29 07:13:35,114 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 944 transitions, 21351 flow [2023-11-29 07:13:35,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:13:35,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:13:35,114 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:35,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 07:13:35,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 07:13:35,315 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:13:35,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:35,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1298648788, now seen corresponding path program 13 times [2023-11-29 07:13:35,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:35,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024394105] [2023-11-29 07:13:35,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:35,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:36,224 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:13:36,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:36,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024394105] [2023-11-29 07:13:36,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024394105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:13:36,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:13:36,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 07:13:36,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032162200] [2023-11-29 07:13:36,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:13:36,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:13:36,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:13:36,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:13:36,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-11-29 07:13:36,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 944 transitions, 21351 flow. Second operand has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:13:36,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:13:36,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-11-29 07:13:36,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:13:39,695 INFO L124 PetriNetUnfolderBase]: 1628/5307 cut-off events. [2023-11-29 07:13:39,695 INFO L125 PetriNetUnfolderBase]: For 130342/130797 co-relation queries the response was YES. [2023-11-29 07:13:39,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40943 conditions, 5307 events. 1628/5307 cut-off events. For 130342/130797 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 48995 event pairs, 192 based on Foata normal form. 236/5460 useless extension candidates. Maximal degree in co-relation 40731. Up to 2350 conditions per place. [2023-11-29 07:13:39,768 INFO L140 encePairwiseOnDemand]: 87/107 looper letters, 453 selfloop transitions, 389 changer transitions 8/992 dead transitions. [2023-11-29 07:13:39,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 992 transitions, 24073 flow [2023-11-29 07:13:39,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:13:39,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 07:13:39,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 820 transitions. [2023-11-29 07:13:39,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7663551401869159 [2023-11-29 07:13:39,769 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 820 transitions. [2023-11-29 07:13:39,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 820 transitions. [2023-11-29 07:13:39,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:13:39,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 820 transitions. [2023-11-29 07:13:39,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 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) [2023-11-29 07:13:39,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-29 07:13:39,771 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2023-11-29 07:13:39,771 INFO L175 Difference]: Start difference. First operand has 429 places, 944 transitions, 21351 flow. Second operand 10 states and 820 transitions. [2023-11-29 07:13:39,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 992 transitions, 24073 flow [2023-11-29 07:13:41,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 992 transitions, 23589 flow, removed 74 selfloop flow, removed 3 redundant places. [2023-11-29 07:13:41,050 INFO L231 Difference]: Finished difference. Result has 440 places, 960 transitions, 22388 flow [2023-11-29 07:13:41,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=20891, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=375, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22388, PETRI_PLACES=440, PETRI_TRANSITIONS=960} [2023-11-29 07:13:41,051 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 334 predicate places. [2023-11-29 07:13:41,051 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 960 transitions, 22388 flow [2023-11-29 07:13:41,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:13:41,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:13:41,051 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:41,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 07:13:41,052 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:13:41,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:41,052 INFO L85 PathProgramCache]: Analyzing trace with hash -259698496, now seen corresponding path program 14 times [2023-11-29 07:13:41,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:41,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960450450] [2023-11-29 07:13:41,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:41,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:46,836 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:13:46,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:46,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960450450] [2023-11-29 07:13:46,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960450450] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:13:46,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514928473] [2023-11-29 07:13:46,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:13:46,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:46,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:13:46,838 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:13:46,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 07:13:46,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 07:13:46,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:13:46,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 07:13:46,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:46,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 07:13:47,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 07:13:47,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 07:13:47,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 07:13:47,288 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-29 07:13:47,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2023-11-29 07:13:47,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 07:13:47,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:13:47,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:13:47,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:13:47,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:13:47,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:13:47,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2023-11-29 07:13:47,625 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:13:47,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:13:47,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514928473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:13:47,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:13:47,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [33] total 40 [2023-11-29 07:13:47,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071853573] [2023-11-29 07:13:47,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:13:47,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:13:47,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:47,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:13:47,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1504, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 07:13:48,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-11-29 07:13:48,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 960 transitions, 22388 flow. Second operand has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:13:48,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:13:48,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-11-29 07:13:48,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:13:50,826 INFO L124 PetriNetUnfolderBase]: 1669/5502 cut-off events. [2023-11-29 07:13:50,826 INFO L125 PetriNetUnfolderBase]: For 143621/144096 co-relation queries the response was YES. [2023-11-29 07:13:50,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43234 conditions, 5502 events. 1669/5502 cut-off events. For 143621/144096 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 51365 event pairs, 186 based on Foata normal form. 269/5687 useless extension candidates. Maximal degree in co-relation 43018. Up to 2387 conditions per place. [2023-11-29 07:13:50,891 INFO L140 encePairwiseOnDemand]: 87/107 looper letters, 475 selfloop transitions, 392 changer transitions 32/1040 dead transitions. [2023-11-29 07:13:50,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 1040 transitions, 25741 flow [2023-11-29 07:13:50,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:13:50,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 07:13:50,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 906 transitions. [2023-11-29 07:13:50,892 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7697536108751062 [2023-11-29 07:13:50,892 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 906 transitions. [2023-11-29 07:13:50,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 906 transitions. [2023-11-29 07:13:50,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:13:50,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 906 transitions. [2023-11-29 07:13:50,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 82.36363636363636) internal successors, (906), 11 states have internal predecessors, (906), 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) [2023-11-29 07:13:50,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:13:50,895 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:13:50,895 INFO L175 Difference]: Start difference. First operand has 440 places, 960 transitions, 22388 flow. Second operand 11 states and 906 transitions. [2023-11-29 07:13:50,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 1040 transitions, 25741 flow [2023-11-29 07:13:51,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 1040 transitions, 25353 flow, removed 49 selfloop flow, removed 3 redundant places. [2023-11-29 07:13:51,975 INFO L231 Difference]: Finished difference. Result has 453 places, 980 transitions, 23832 flow [2023-11-29 07:13:51,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=22009, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=370, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=23832, PETRI_PLACES=453, PETRI_TRANSITIONS=980} [2023-11-29 07:13:51,976 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 347 predicate places. [2023-11-29 07:13:51,976 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 980 transitions, 23832 flow [2023-11-29 07:13:51,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:13:51,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:13:51,976 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:51,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 07:13:52,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:52,177 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:13:52,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:52,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1956644116, now seen corresponding path program 15 times [2023-11-29 07:13:52,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:52,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432701920] [2023-11-29 07:13:52,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:52,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:53,971 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:13:53,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:53,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432701920] [2023-11-29 07:13:53,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432701920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:13:53,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:13:53,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-11-29 07:13:53,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835548593] [2023-11-29 07:13:53,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:13:53,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 07:13:53,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:53,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 07:13:53,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2023-11-29 07:13:54,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 107 [2023-11-29 07:13:54,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 980 transitions, 23832 flow. Second operand has 19 states, 19 states have (on average 62.421052631578945) internal successors, (1186), 19 states have internal predecessors, (1186), 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) [2023-11-29 07:13:54,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:13:54,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 107 [2023-11-29 07:13:54,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:14:01,690 INFO L124 PetriNetUnfolderBase]: 3144/9193 cut-off events. [2023-11-29 07:14:01,690 INFO L125 PetriNetUnfolderBase]: For 269170/269369 co-relation queries the response was YES. [2023-11-29 07:14:01,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73409 conditions, 9193 events. 3144/9193 cut-off events. For 269170/269369 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 91769 event pairs, 252 based on Foata normal form. 69/9193 useless extension candidates. Maximal degree in co-relation 73172. Up to 2116 conditions per place. [2023-11-29 07:14:01,870 INFO L140 encePairwiseOnDemand]: 78/107 looper letters, 940 selfloop transitions, 475 changer transitions 48/1593 dead transitions. [2023-11-29 07:14:01,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 1593 transitions, 42963 flow [2023-11-29 07:14:01,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 07:14:01,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-11-29 07:14:01,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1974 transitions. [2023-11-29 07:14:01,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6361585562359008 [2023-11-29 07:14:01,873 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1974 transitions. [2023-11-29 07:14:01,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1974 transitions. [2023-11-29 07:14:01,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:14:01,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1974 transitions. [2023-11-29 07:14:01,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 68.06896551724138) internal successors, (1974), 29 states have internal predecessors, (1974), 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) [2023-11-29 07:14:01,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 107.0) internal successors, (3210), 30 states have internal predecessors, (3210), 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) [2023-11-29 07:14:01,879 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 107.0) internal successors, (3210), 30 states have internal predecessors, (3210), 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) [2023-11-29 07:14:01,879 INFO L175 Difference]: Start difference. First operand has 453 places, 980 transitions, 23832 flow. Second operand 29 states and 1974 transitions. [2023-11-29 07:14:01,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 1593 transitions, 42963 flow [2023-11-29 07:14:04,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 1593 transitions, 42278 flow, removed 75 selfloop flow, removed 4 redundant places. [2023-11-29 07:14:04,565 INFO L231 Difference]: Finished difference. Result has 486 places, 1192 transitions, 32160 flow [2023-11-29 07:14:04,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=23397, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=980, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=32160, PETRI_PLACES=486, PETRI_TRANSITIONS=1192} [2023-11-29 07:14:04,567 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 380 predicate places. [2023-11-29 07:14:04,567 INFO L495 AbstractCegarLoop]: Abstraction has has 486 places, 1192 transitions, 32160 flow [2023-11-29 07:14:04,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 62.421052631578945) internal successors, (1186), 19 states have internal predecessors, (1186), 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) [2023-11-29 07:14:04,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:14:04,567 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:14:04,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 07:14:04,567 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:14:04,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:04,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1596722992, now seen corresponding path program 16 times [2023-11-29 07:14:04,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:14:04,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206025874] [2023-11-29 07:14:04,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:04,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:14:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:14:05,413 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:14:05,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:14:05,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206025874] [2023-11-29 07:14:05,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206025874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:14:05,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:14:05,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 07:14:05,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124142801] [2023-11-29 07:14:05,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:14:05,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:14:05,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:14:05,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:14:05,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:14:05,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-11-29 07:14:05,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 1192 transitions, 32160 flow. Second operand has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:14:05,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:14:05,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-11-29 07:14:05,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:14:10,712 INFO L124 PetriNetUnfolderBase]: 2476/7805 cut-off events. [2023-11-29 07:14:10,712 INFO L125 PetriNetUnfolderBase]: For 254316/254637 co-relation queries the response was YES. [2023-11-29 07:14:10,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66809 conditions, 7805 events. 2476/7805 cut-off events. For 254316/254637 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 78362 event pairs, 270 based on Foata normal form. 56/7737 useless extension candidates. Maximal degree in co-relation 66573. Up to 3322 conditions per place. [2023-11-29 07:14:10,853 INFO L140 encePairwiseOnDemand]: 87/107 looper letters, 473 selfloop transitions, 589 changer transitions 8/1226 dead transitions. [2023-11-29 07:14:10,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 1226 transitions, 34986 flow [2023-11-29 07:14:10,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:14:10,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-29 07:14:10,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1114 transitions. [2023-11-29 07:14:10,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7436582109479306 [2023-11-29 07:14:10,856 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1114 transitions. [2023-11-29 07:14:10,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1114 transitions. [2023-11-29 07:14:10,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:14:10,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1114 transitions. [2023-11-29 07:14:10,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 79.57142857142857) internal successors, (1114), 14 states have internal predecessors, (1114), 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) [2023-11-29 07:14:10,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 107.0) internal successors, (1605), 15 states have internal predecessors, (1605), 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) [2023-11-29 07:14:10,860 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 107.0) internal successors, (1605), 15 states have internal predecessors, (1605), 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) [2023-11-29 07:14:10,861 INFO L175 Difference]: Start difference. First operand has 486 places, 1192 transitions, 32160 flow. Second operand 14 states and 1114 transitions. [2023-11-29 07:14:10,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 1226 transitions, 34986 flow [2023-11-29 07:14:13,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 1226 transitions, 34633 flow, removed 86 selfloop flow, removed 5 redundant places. [2023-11-29 07:14:13,445 INFO L231 Difference]: Finished difference. Result has 495 places, 1201 transitions, 33362 flow [2023-11-29 07:14:13,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=31835, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=580, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=609, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33362, PETRI_PLACES=495, PETRI_TRANSITIONS=1201} [2023-11-29 07:14:13,446 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 389 predicate places. [2023-11-29 07:14:13,446 INFO L495 AbstractCegarLoop]: Abstraction has has 495 places, 1201 transitions, 33362 flow [2023-11-29 07:14:13,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2023-11-29 07:14:13,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:14:13,447 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:14:13,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 07:14:13,447 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:14:13,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:13,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2029292306, now seen corresponding path program 1 times [2023-11-29 07:14:13,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:14:13,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229914333] [2023-11-29 07:14:13,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:13,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:14:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:14:16,192 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:14:16,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:14:16,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229914333] [2023-11-29 07:14:16,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229914333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:14:16,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:14:16,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 07:14:16,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339936876] [2023-11-29 07:14:16,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:14:16,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:14:16,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:14:16,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:14:16,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:14:16,842 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2023-11-29 07:14:16,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 1201 transitions, 33362 flow. Second operand has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:14:16,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:14:16,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2023-11-29 07:14:16,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:14:22,908 INFO L124 PetriNetUnfolderBase]: 2491/8000 cut-off events. [2023-11-29 07:14:22,908 INFO L125 PetriNetUnfolderBase]: For 282289/282853 co-relation queries the response was YES. [2023-11-29 07:14:23,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68669 conditions, 8000 events. 2491/8000 cut-off events. For 282289/282853 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 81068 event pairs, 183 based on Foata normal form. 144/8099 useless extension candidates. Maximal degree in co-relation 68432. Up to 2119 conditions per place. [2023-11-29 07:14:23,175 INFO L140 encePairwiseOnDemand]: 88/107 looper letters, 884 selfloop transitions, 246 changer transitions 17/1503 dead transitions. [2023-11-29 07:14:23,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 1503 transitions, 40361 flow [2023-11-29 07:14:23,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:14:23,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 07:14:23,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1276 transitions. [2023-11-29 07:14:23,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7950155763239876 [2023-11-29 07:14:23,178 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1276 transitions. [2023-11-29 07:14:23,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1276 transitions. [2023-11-29 07:14:23,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:14:23,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1276 transitions. [2023-11-29 07:14:23,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 85.06666666666666) internal successors, (1276), 15 states have internal predecessors, (1276), 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) [2023-11-29 07:14:23,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 107.0) internal successors, (1712), 16 states have internal predecessors, (1712), 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) [2023-11-29 07:14:23,183 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 107.0) internal successors, (1712), 16 states have internal predecessors, (1712), 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) [2023-11-29 07:14:23,183 INFO L175 Difference]: Start difference. First operand has 495 places, 1201 transitions, 33362 flow. Second operand 15 states and 1276 transitions. [2023-11-29 07:14:23,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 1503 transitions, 40361 flow [2023-11-29 07:14:25,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 1503 transitions, 39159 flow, removed 10 selfloop flow, removed 8 redundant places. [2023-11-29 07:14:25,638 INFO L231 Difference]: Finished difference. Result has 512 places, 1318 transitions, 35482 flow [2023-11-29 07:14:25,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=32236, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1017, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=35482, PETRI_PLACES=512, PETRI_TRANSITIONS=1318} [2023-11-29 07:14:25,640 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 406 predicate places. [2023-11-29 07:14:25,640 INFO L495 AbstractCegarLoop]: Abstraction has has 512 places, 1318 transitions, 35482 flow [2023-11-29 07:14:25,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:14:25,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:14:25,641 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:14:25,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 07:14:25,642 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:14:25,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:25,642 INFO L85 PathProgramCache]: Analyzing trace with hash 217052306, now seen corresponding path program 2 times [2023-11-29 07:14:25,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:14:25,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051384628] [2023-11-29 07:14:25,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:25,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:14:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:14:27,921 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:14:27,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:14:27,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051384628] [2023-11-29 07:14:27,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051384628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:14:27,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:14:27,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 07:14:27,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269117756] [2023-11-29 07:14:27,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:14:27,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:14:27,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:14:27,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:14:27,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:14:28,456 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2023-11-29 07:14:28,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 1318 transitions, 35482 flow. Second operand has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:14:28,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:14:28,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2023-11-29 07:14:28,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:14:33,970 INFO L124 PetriNetUnfolderBase]: 2566/8228 cut-off events. [2023-11-29 07:14:33,970 INFO L125 PetriNetUnfolderBase]: For 298454/299177 co-relation queries the response was YES. [2023-11-29 07:14:34,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71436 conditions, 8228 events. 2566/8228 cut-off events. For 298454/299177 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 84062 event pairs, 145 based on Foata normal form. 254/8437 useless extension candidates. Maximal degree in co-relation 71187. Up to 3603 conditions per place. [2023-11-29 07:14:34,089 INFO L140 encePairwiseOnDemand]: 90/107 looper letters, 843 selfloop transitions, 284 changer transitions 21/1504 dead transitions. [2023-11-29 07:14:34,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 1504 transitions, 42734 flow [2023-11-29 07:14:34,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:14:34,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 07:14:34,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1085 transitions. [2023-11-29 07:14:34,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7800143781452192 [2023-11-29 07:14:34,091 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1085 transitions. [2023-11-29 07:14:34,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1085 transitions. [2023-11-29 07:14:34,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:14:34,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1085 transitions. [2023-11-29 07:14:34,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 83.46153846153847) internal successors, (1085), 13 states have internal predecessors, (1085), 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) [2023-11-29 07:14:34,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2023-11-29 07:14:34,095 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2023-11-29 07:14:34,095 INFO L175 Difference]: Start difference. First operand has 512 places, 1318 transitions, 35482 flow. Second operand 13 states and 1085 transitions. [2023-11-29 07:14:34,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 1504 transitions, 42734 flow [2023-11-29 07:14:37,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 1504 transitions, 42317 flow, removed 64 selfloop flow, removed 3 redundant places. [2023-11-29 07:14:37,213 INFO L231 Difference]: Finished difference. Result has 527 places, 1385 transitions, 38802 flow [2023-11-29 07:14:37,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=35148, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1064, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=38802, PETRI_PLACES=527, PETRI_TRANSITIONS=1385} [2023-11-29 07:14:37,215 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 421 predicate places. [2023-11-29 07:14:37,215 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 1385 transitions, 38802 flow [2023-11-29 07:14:37,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:14:37,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:14:37,215 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:14:37,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 07:14:37,215 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:14:37,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:37,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1306439278, now seen corresponding path program 3 times [2023-11-29 07:14:37,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:14:37,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711071161] [2023-11-29 07:14:37,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:37,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:14:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:14:49,288 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:14:49,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:14:49,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711071161] [2023-11-29 07:14:49,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711071161] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:14:49,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267215716] [2023-11-29 07:14:49,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 07:14:49,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:49,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:14:49,290 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:14:49,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 07:14:49,446 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-29 07:14:49,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:14:49,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-29 07:14:49,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:14:49,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 07:14:49,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 07:14:49,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2023-11-29 07:14:49,869 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2023-11-29 07:14:49,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 07:14:50,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2023-11-29 07:14:50,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 27 [2023-11-29 07:14:50,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2023-11-29 07:14:50,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 48 [2023-11-29 07:14:50,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2023-11-29 07:14:50,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2023-11-29 07:14:50,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:14:50,938 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:14:50,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2023-11-29 07:14:59,114 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:14:59,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:14:59,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267215716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:14:59,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:14:59,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [33] total 44 [2023-11-29 07:14:59,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887610215] [2023-11-29 07:14:59,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:14:59,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:14:59,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:14:59,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:14:59,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1806, Unknown=2, NotChecked=0, Total=1980 [2023-11-29 07:15:03,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:15:07,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:15:07,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107 [2023-11-29 07:15:07,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 1385 transitions, 38802 flow. Second operand has 14 states, 14 states have (on average 74.28571428571429) internal successors, (1040), 14 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:15:07,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:15:07,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107 [2023-11-29 07:15:07,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:15:11,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:15:16,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:15:21,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:15:25,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:15:30,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:15:34,836 INFO L124 PetriNetUnfolderBase]: 2765/8779 cut-off events. [2023-11-29 07:15:34,836 INFO L125 PetriNetUnfolderBase]: For 356883/357816 co-relation queries the response was YES. [2023-11-29 07:15:34,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77704 conditions, 8779 events. 2765/8779 cut-off events. For 356883/357816 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 90433 event pairs, 162 based on Foata normal form. 321/9030 useless extension candidates. Maximal degree in co-relation 77446. Up to 3852 conditions per place. [2023-11-29 07:15:34,980 INFO L140 encePairwiseOnDemand]: 87/107 looper letters, 1037 selfloop transitions, 351 changer transitions 4/1597 dead transitions. [2023-11-29 07:15:34,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 1597 transitions, 47321 flow [2023-11-29 07:15:34,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:15:34,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 07:15:34,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1067 transitions. [2023-11-29 07:15:34,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7670740474478792 [2023-11-29 07:15:34,983 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1067 transitions. [2023-11-29 07:15:34,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1067 transitions. [2023-11-29 07:15:34,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:15:34,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1067 transitions. [2023-11-29 07:15:34,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 82.07692307692308) internal successors, (1067), 13 states have internal predecessors, (1067), 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) [2023-11-29 07:15:34,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2023-11-29 07:15:34,986 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2023-11-29 07:15:34,986 INFO L175 Difference]: Start difference. First operand has 527 places, 1385 transitions, 38802 flow. Second operand 13 states and 1067 transitions. [2023-11-29 07:15:34,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 1597 transitions, 47321 flow [2023-11-29 07:15:38,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 1597 transitions, 47148 flow, removed 25 selfloop flow, removed 3 redundant places. [2023-11-29 07:15:38,425 INFO L231 Difference]: Finished difference. Result has 544 places, 1486 transitions, 43853 flow [2023-11-29 07:15:38,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=38642, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=257, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1081, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=43853, PETRI_PLACES=544, PETRI_TRANSITIONS=1486} [2023-11-29 07:15:38,427 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 438 predicate places. [2023-11-29 07:15:38,427 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 1486 transitions, 43853 flow [2023-11-29 07:15:38,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 74.28571428571429) internal successors, (1040), 14 states have internal predecessors, (1040), 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) [2023-11-29 07:15:38,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:15:38,427 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:15:38,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 07:15:38,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:38,628 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:15:38,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:38,629 INFO L85 PathProgramCache]: Analyzing trace with hash 179580494, now seen corresponding path program 4 times [2023-11-29 07:15:38,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:15:38,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752050307] [2023-11-29 07:15:38,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:38,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:15:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:15:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:15:40,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:15:40,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752050307] [2023-11-29 07:15:40,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752050307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:15:40,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:15:40,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 07:15:40,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962239413] [2023-11-29 07:15:40,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:15:40,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:15:40,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:15:40,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:15:40,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:15:40,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 107 [2023-11-29 07:15:40,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 1486 transitions, 43853 flow. Second operand has 10 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 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) [2023-11-29 07:15:40,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:15:40,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 107 [2023-11-29 07:15:40,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:15:47,524 INFO L124 PetriNetUnfolderBase]: 2659/8817 cut-off events. [2023-11-29 07:15:47,524 INFO L125 PetriNetUnfolderBase]: For 407328/408636 co-relation queries the response was YES. [2023-11-29 07:15:47,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78833 conditions, 8817 events. 2659/8817 cut-off events. For 407328/408636 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 92932 event pairs, 148 based on Foata normal form. 350/9096 useless extension candidates. Maximal degree in co-relation 78567. Up to 3058 conditions per place. [2023-11-29 07:15:47,683 INFO L140 encePairwiseOnDemand]: 91/107 looper letters, 776 selfloop transitions, 412 changer transitions 6/1653 dead transitions. [2023-11-29 07:15:47,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 1653 transitions, 50873 flow [2023-11-29 07:15:47,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:15:47,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 07:15:47,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 951 transitions. [2023-11-29 07:15:47,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8079864061172473 [2023-11-29 07:15:47,685 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 951 transitions. [2023-11-29 07:15:47,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 951 transitions. [2023-11-29 07:15:47,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:15:47,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 951 transitions. [2023-11-29 07:15:47,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.45454545454545) internal successors, (951), 11 states have internal predecessors, (951), 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) [2023-11-29 07:15:47,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:15:47,689 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:15:47,689 INFO L175 Difference]: Start difference. First operand has 544 places, 1486 transitions, 43853 flow. Second operand 11 states and 951 transitions. [2023-11-29 07:15:47,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 1653 transitions, 50873 flow [2023-11-29 07:15:51,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 552 places, 1653 transitions, 50677 flow, removed 80 selfloop flow, removed 2 redundant places. [2023-11-29 07:15:51,308 INFO L231 Difference]: Finished difference. Result has 561 places, 1575 transitions, 48733 flow [2023-11-29 07:15:51,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=43688, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1486, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=324, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=48733, PETRI_PLACES=561, PETRI_TRANSITIONS=1575} [2023-11-29 07:15:51,310 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 455 predicate places. [2023-11-29 07:15:51,310 INFO L495 AbstractCegarLoop]: Abstraction has has 561 places, 1575 transitions, 48733 flow [2023-11-29 07:15:51,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 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) [2023-11-29 07:15:51,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:15:51,310 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:15:51,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 07:15:51,311 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:15:51,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:51,311 INFO L85 PathProgramCache]: Analyzing trace with hash -705447724, now seen corresponding path program 5 times [2023-11-29 07:15:51,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:15:51,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839486075] [2023-11-29 07:15:51,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:51,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:15:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:15:53,995 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:15:53,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:15:53,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839486075] [2023-11-29 07:15:53,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839486075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:15:53,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:15:53,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 07:15:53,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638994824] [2023-11-29 07:15:53,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:15:53,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:15:53,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:15:53,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:15:53,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:15:54,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2023-11-29 07:15:54,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 1575 transitions, 48733 flow. Second operand has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:15:54,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:15:54,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2023-11-29 07:15:54,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:16:03,626 INFO L124 PetriNetUnfolderBase]: 3083/9850 cut-off events. [2023-11-29 07:16:03,626 INFO L125 PetriNetUnfolderBase]: For 530551/531881 co-relation queries the response was YES. [2023-11-29 07:16:03,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91903 conditions, 9850 events. 3083/9850 cut-off events. For 530551/531881 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 104145 event pairs, 185 based on Foata normal form. 566/10342 useless extension candidates. Maximal degree in co-relation 91624. Up to 4110 conditions per place. [2023-11-29 07:16:03,789 INFO L140 encePairwiseOnDemand]: 90/107 looper letters, 979 selfloop transitions, 503 changer transitions 7/1845 dead transitions. [2023-11-29 07:16:03,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 1845 transitions, 60257 flow [2023-11-29 07:16:03,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 07:16:03,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 07:16:03,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1331 transitions. [2023-11-29 07:16:03,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7774532710280374 [2023-11-29 07:16:03,791 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1331 transitions. [2023-11-29 07:16:03,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1331 transitions. [2023-11-29 07:16:03,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:16:03,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1331 transitions. [2023-11-29 07:16:03,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 83.1875) internal successors, (1331), 16 states have internal predecessors, (1331), 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) [2023-11-29 07:16:03,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 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) [2023-11-29 07:16:03,794 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 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) [2023-11-29 07:16:03,794 INFO L175 Difference]: Start difference. First operand has 561 places, 1575 transitions, 48733 flow. Second operand 16 states and 1331 transitions. [2023-11-29 07:16:03,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 1845 transitions, 60257 flow [2023-11-29 07:16:08,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 1845 transitions, 59861 flow, removed 142 selfloop flow, removed 2 redundant places. [2023-11-29 07:16:08,880 INFO L231 Difference]: Finished difference. Result has 584 places, 1702 transitions, 56002 flow [2023-11-29 07:16:08,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=48433, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=393, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=56002, PETRI_PLACES=584, PETRI_TRANSITIONS=1702} [2023-11-29 07:16:08,882 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 478 predicate places. [2023-11-29 07:16:08,882 INFO L495 AbstractCegarLoop]: Abstraction has has 584 places, 1702 transitions, 56002 flow [2023-11-29 07:16:08,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:16:08,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:16:08,882 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:16:08,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 07:16:08,882 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:16:08,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:08,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1427351656, now seen corresponding path program 6 times [2023-11-29 07:16:08,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:16:08,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146454396] [2023-11-29 07:16:08,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:08,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:16:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:10,615 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:16:10,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:16:10,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146454396] [2023-11-29 07:16:10,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146454396] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:16:10,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:16:10,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 07:16:10,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689530957] [2023-11-29 07:16:10,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:16:10,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:16:10,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:16:10,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:16:10,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:16:11,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 107 [2023-11-29 07:16:11,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 584 places, 1702 transitions, 56002 flow. Second operand has 11 states, 11 states have (on average 77.45454545454545) internal successors, (852), 11 states have internal predecessors, (852), 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) [2023-11-29 07:16:11,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:16:11,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 107 [2023-11-29 07:16:11,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:16:20,728 INFO L124 PetriNetUnfolderBase]: 3013/9826 cut-off events. [2023-11-29 07:16:20,728 INFO L125 PetriNetUnfolderBase]: For 584442/585968 co-relation queries the response was YES. [2023-11-29 07:16:20,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93551 conditions, 9826 events. 3013/9826 cut-off events. For 584442/585968 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 104977 event pairs, 182 based on Foata normal form. 643/10385 useless extension candidates. Maximal degree in co-relation 93261. Up to 3475 conditions per place. [2023-11-29 07:16:20,946 INFO L140 encePairwiseOnDemand]: 91/107 looper letters, 898 selfloop transitions, 606 changer transitions 7/1915 dead transitions. [2023-11-29 07:16:20,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 1915 transitions, 64462 flow [2023-11-29 07:16:20,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:16:20,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-29 07:16:20,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1203 transitions. [2023-11-29 07:16:20,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8030707610146862 [2023-11-29 07:16:20,948 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1203 transitions. [2023-11-29 07:16:20,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1203 transitions. [2023-11-29 07:16:20,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:16:20,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1203 transitions. [2023-11-29 07:16:20,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 85.92857142857143) internal successors, (1203), 14 states have internal predecessors, (1203), 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) [2023-11-29 07:16:20,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 107.0) internal successors, (1605), 15 states have internal predecessors, (1605), 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) [2023-11-29 07:16:20,953 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 107.0) internal successors, (1605), 15 states have internal predecessors, (1605), 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) [2023-11-29 07:16:20,953 INFO L175 Difference]: Start difference. First operand has 584 places, 1702 transitions, 56002 flow. Second operand 14 states and 1203 transitions. [2023-11-29 07:16:20,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 1915 transitions, 64462 flow [2023-11-29 07:16:26,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 593 places, 1915 transitions, 64117 flow, removed 68 selfloop flow, removed 4 redundant places. [2023-11-29 07:16:27,016 INFO L231 Difference]: Finished difference. Result has 601 places, 1787 transitions, 60651 flow [2023-11-29 07:16:27,017 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=55707, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1702, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=523, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=60651, PETRI_PLACES=601, PETRI_TRANSITIONS=1787} [2023-11-29 07:16:27,017 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 495 predicate places. [2023-11-29 07:16:27,018 INFO L495 AbstractCegarLoop]: Abstraction has has 601 places, 1787 transitions, 60651 flow [2023-11-29 07:16:27,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 77.45454545454545) internal successors, (852), 11 states have internal predecessors, (852), 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) [2023-11-29 07:16:27,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:16:27,018 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:16:27,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 07:16:27,018 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:16:27,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:27,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1255663338, now seen corresponding path program 7 times [2023-11-29 07:16:27,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:16:27,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108807941] [2023-11-29 07:16:27,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:27,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:16:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:33,388 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:16:33,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:16:33,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108807941] [2023-11-29 07:16:33,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108807941] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:16:33,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967876423] [2023-11-29 07:16:33,389 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 07:16:33,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:16:33,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:16:33,390 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:16:33,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 07:16:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:33,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 79 conjunts are in the unsatisfiable core [2023-11-29 07:16:33,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:33,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 07:16:34,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 07:16:34,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 07:16:34,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 07:16:34,313 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-29 07:16:34,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2023-11-29 07:16:34,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2023-11-29 07:16:34,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 54 [2023-11-29 07:16:34,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 66 [2023-11-29 07:16:34,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 78 [2023-11-29 07:16:34,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:34,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 93 [2023-11-29 07:16:35,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:16:35,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:16:35,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 117 treesize of output 111 [2023-11-29 07:16:47,526 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 07:16:47,526 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:56,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 71 [2023-11-29 07:16:56,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2023-11-29 07:16:56,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2023-11-29 07:16:56,458 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:16:56,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967876423] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 07:16:56,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:16:56,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [32, 28] total 71 [2023-11-29 07:16:56,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609129944] [2023-11-29 07:16:56,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:16:56,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:16:56,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:16:56,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:16:56,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=4798, Unknown=4, NotChecked=0, Total=5112 [2023-11-29 07:17:01,295 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 107 [2023-11-29 07:17:01,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 1787 transitions, 60651 flow. Second operand has 14 states, 14 states have (on average 71.42857142857143) internal successors, (1000), 14 states have internal predecessors, (1000), 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) [2023-11-29 07:17:01,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:17:01,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 107 [2023-11-29 07:17:01,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:17:36,248 INFO L124 PetriNetUnfolderBase]: 3790/12270 cut-off events. [2023-11-29 07:17:36,249 INFO L125 PetriNetUnfolderBase]: For 808627/810577 co-relation queries the response was YES. [2023-11-29 07:17:36,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119912 conditions, 12270 events. 3790/12270 cut-off events. For 808627/810577 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 135511 event pairs, 271 based on Foata normal form. 879/13039 useless extension candidates. Maximal degree in co-relation 119565. Up to 3170 conditions per place. [2023-11-29 07:17:36,450 INFO L140 encePairwiseOnDemand]: 83/107 looper letters, 1282 selfloop transitions, 969 changer transitions 24/2453 dead transitions. [2023-11-29 07:17:36,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 621 places, 2453 transitions, 85522 flow [2023-11-29 07:17:36,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 07:17:36,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 07:17:36,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1694 transitions. [2023-11-29 07:17:36,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7538940809968847 [2023-11-29 07:17:36,452 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1694 transitions. [2023-11-29 07:17:36,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1694 transitions. [2023-11-29 07:17:36,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:17:36,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1694 transitions. [2023-11-29 07:17:36,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 80.66666666666667) internal successors, (1694), 21 states have internal predecessors, (1694), 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) [2023-11-29 07:17:36,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 107.0) internal successors, (2354), 22 states have internal predecessors, (2354), 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) [2023-11-29 07:17:36,456 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 107.0) internal successors, (2354), 22 states have internal predecessors, (2354), 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) [2023-11-29 07:17:36,456 INFO L175 Difference]: Start difference. First operand has 601 places, 1787 transitions, 60651 flow. Second operand 21 states and 1694 transitions. [2023-11-29 07:17:36,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 621 places, 2453 transitions, 85522 flow [2023-11-29 07:17:43,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 618 places, 2453 transitions, 84209 flow, removed 222 selfloop flow, removed 3 redundant places. [2023-11-29 07:17:43,996 INFO L231 Difference]: Finished difference. Result has 630 places, 2122 transitions, 76139 flow [2023-11-29 07:17:43,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=59728, PETRI_DIFFERENCE_MINUEND_PLACES=598, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1787, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=632, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1041, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=76139, PETRI_PLACES=630, PETRI_TRANSITIONS=2122} [2023-11-29 07:17:43,997 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 524 predicate places. [2023-11-29 07:17:43,997 INFO L495 AbstractCegarLoop]: Abstraction has has 630 places, 2122 transitions, 76139 flow [2023-11-29 07:17:43,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 71.42857142857143) internal successors, (1000), 14 states have internal predecessors, (1000), 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) [2023-11-29 07:17:43,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:17:43,998 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:17:44,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 07:17:44,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:17:44,198 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:17:44,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:17:44,198 INFO L85 PathProgramCache]: Analyzing trace with hash -416544154, now seen corresponding path program 8 times [2023-11-29 07:17:44,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:17:44,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438531149] [2023-11-29 07:17:44,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:44,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:17:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:17:46,311 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:17:46,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:17:46,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438531149] [2023-11-29 07:17:46,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438531149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:17:46,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:17:46,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 07:17:46,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320058688] [2023-11-29 07:17:46,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:17:46,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:17:46,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:17:46,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:17:46,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:17:47,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2023-11-29 07:17:47,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 2122 transitions, 76139 flow. Second operand has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:17:47,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:17:47,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2023-11-29 07:17:47,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:18:01,275 INFO L124 PetriNetUnfolderBase]: 3729/12155 cut-off events. [2023-11-29 07:18:01,275 INFO L125 PetriNetUnfolderBase]: For 863887/865851 co-relation queries the response was YES. [2023-11-29 07:18:01,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123066 conditions, 12155 events. 3729/12155 cut-off events. For 863887/865851 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 135106 event pairs, 281 based on Foata normal form. 914/12963 useless extension candidates. Maximal degree in co-relation 122708. Up to 4620 conditions per place. [2023-11-29 07:18:01,591 INFO L140 encePairwiseOnDemand]: 90/107 looper letters, 1040 selfloop transitions, 893 changer transitions 3/2312 dead transitions. [2023-11-29 07:18:01,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 647 places, 2312 transitions, 85196 flow [2023-11-29 07:18:01,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 07:18:01,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 07:18:01,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1491 transitions. [2023-11-29 07:18:01,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7741433021806854 [2023-11-29 07:18:01,593 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1491 transitions. [2023-11-29 07:18:01,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1491 transitions. [2023-11-29 07:18:01,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:18:01,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1491 transitions. [2023-11-29 07:18:01,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 82.83333333333333) internal successors, (1491), 18 states have internal predecessors, (1491), 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) [2023-11-29 07:18:01,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 107.0) internal successors, (2033), 19 states have internal predecessors, (2033), 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) [2023-11-29 07:18:01,597 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 107.0) internal successors, (2033), 19 states have internal predecessors, (2033), 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) [2023-11-29 07:18:01,597 INFO L175 Difference]: Start difference. First operand has 630 places, 2122 transitions, 76139 flow. Second operand 18 states and 1491 transitions. [2023-11-29 07:18:01,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 647 places, 2312 transitions, 85196 flow [2023-11-29 07:18:11,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 2312 transitions, 84528 flow, removed 211 selfloop flow, removed 2 redundant places. [2023-11-29 07:18:11,452 INFO L231 Difference]: Finished difference. Result has 656 places, 2199 transitions, 81038 flow [2023-11-29 07:18:11,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=75503, PETRI_DIFFERENCE_MINUEND_PLACES=628, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=820, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=81038, PETRI_PLACES=656, PETRI_TRANSITIONS=2199} [2023-11-29 07:18:11,454 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 550 predicate places. [2023-11-29 07:18:11,454 INFO L495 AbstractCegarLoop]: Abstraction has has 656 places, 2199 transitions, 81038 flow [2023-11-29 07:18:11,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:18:11,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:18:11,455 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:18:11,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 07:18:11,455 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:18:11,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:18:11,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1174668776, now seen corresponding path program 9 times [2023-11-29 07:18:11,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:18:11,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797854886] [2023-11-29 07:18:11,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:11,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:18:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:18:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:18:13,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:18:13,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797854886] [2023-11-29 07:18:13,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797854886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:18:13,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:18:13,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 07:18:13,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255483822] [2023-11-29 07:18:13,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:18:13,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:18:13,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:18:13,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:18:13,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:18:14,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2023-11-29 07:18:14,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 2199 transitions, 81038 flow. Second operand has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:18:14,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:18:14,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2023-11-29 07:18:14,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:18:28,130 INFO L124 PetriNetUnfolderBase]: 3718/12120 cut-off events. [2023-11-29 07:18:28,130 INFO L125 PetriNetUnfolderBase]: For 896388/898314 co-relation queries the response was YES. [2023-11-29 07:18:28,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125192 conditions, 12120 events. 3718/12120 cut-off events. For 896388/898314 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 134840 event pairs, 243 based on Foata normal form. 857/12870 useless extension candidates. Maximal degree in co-relation 124820. Up to 4792 conditions per place. [2023-11-29 07:18:28,405 INFO L140 encePairwiseOnDemand]: 91/107 looper letters, 1133 selfloop transitions, 805 changer transitions 1/2315 dead transitions. [2023-11-29 07:18:28,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 669 places, 2315 transitions, 87241 flow [2023-11-29 07:18:28,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:18:28,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-29 07:18:28,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1165 transitions. [2023-11-29 07:18:28,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7777036048064085 [2023-11-29 07:18:28,408 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1165 transitions. [2023-11-29 07:18:28,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1165 transitions. [2023-11-29 07:18:28,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:18:28,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1165 transitions. [2023-11-29 07:18:28,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 83.21428571428571) internal successors, (1165), 14 states have internal predecessors, (1165), 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) [2023-11-29 07:18:28,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 107.0) internal successors, (1605), 15 states have internal predecessors, (1605), 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) [2023-11-29 07:18:28,413 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 107.0) internal successors, (1605), 15 states have internal predecessors, (1605), 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) [2023-11-29 07:18:28,413 INFO L175 Difference]: Start difference. First operand has 656 places, 2199 transitions, 81038 flow. Second operand 14 states and 1165 transitions. [2023-11-29 07:18:28,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 669 places, 2315 transitions, 87241 flow [2023-11-29 07:18:38,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 665 places, 2315 transitions, 85981 flow, removed 112 selfloop flow, removed 4 redundant places. [2023-11-29 07:18:38,953 INFO L231 Difference]: Finished difference. Result has 670 places, 2214 transitions, 82234 flow [2023-11-29 07:18:38,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=79778, PETRI_DIFFERENCE_MINUEND_PLACES=652, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=793, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=82234, PETRI_PLACES=670, PETRI_TRANSITIONS=2214} [2023-11-29 07:18:38,955 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 564 predicate places. [2023-11-29 07:18:38,955 INFO L495 AbstractCegarLoop]: Abstraction has has 670 places, 2214 transitions, 82234 flow [2023-11-29 07:18:38,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:18:38,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:18:38,956 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:18:38,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 07:18:38,956 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:18:38,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:18:38,956 INFO L85 PathProgramCache]: Analyzing trace with hash 2026163256, now seen corresponding path program 10 times [2023-11-29 07:18:38,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:18:38,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30026435] [2023-11-29 07:18:38,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:38,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:18:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:18:49,459 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:18:49,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:18:49,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30026435] [2023-11-29 07:18:49,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30026435] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:18:49,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411048284] [2023-11-29 07:18:49,460 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 07:18:49,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:18:49,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:18:49,461 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:18:49,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 07:18:49,674 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 07:18:49,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:18:49,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 75 conjunts are in the unsatisfiable core [2023-11-29 07:18:49,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:18:50,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 07:18:50,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 07:18:50,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 07:18:50,522 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-29 07:18:50,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2023-11-29 07:18:50,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:50,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2023-11-29 07:18:50,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:50,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:50,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2023-11-29 07:18:50,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:50,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:50,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2023-11-29 07:18:50,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:50,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:50,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:50,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:50,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 51 [2023-11-29 07:18:51,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 66 [2023-11-29 07:18:51,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 93 [2023-11-29 07:18:51,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:18:51,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 111 [2023-11-29 07:18:55,926 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 07:18:55,926 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:19:08,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 130 [2023-11-29 07:19:08,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2023-11-29 07:19:08,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2023-11-29 07:19:08,693 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:19:08,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411048284] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 07:19:08,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:19:08,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [33, 27] total 71 [2023-11-29 07:19:08,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525902430] [2023-11-29 07:19:08,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:19:08,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:19:08,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:19:08,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:19:08,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=339, Invalid=4772, Unknown=1, NotChecked=0, Total=5112 [2023-11-29 07:19:20,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 107 [2023-11-29 07:19:20,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 670 places, 2214 transitions, 82234 flow. Second operand has 14 states, 14 states have (on average 71.42857142857143) internal successors, (1000), 14 states have internal predecessors, (1000), 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) [2023-11-29 07:19:20,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:19:20,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 107 [2023-11-29 07:19:20,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:19:27,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 07:19:40,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 07:20:03,361 INFO L124 PetriNetUnfolderBase]: 4241/13800 cut-off events. [2023-11-29 07:20:03,361 INFO L125 PetriNetUnfolderBase]: For 1062611/1064947 co-relation queries the response was YES. [2023-11-29 07:20:03,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143692 conditions, 13800 events. 4241/13800 cut-off events. For 1062611/1064947 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 156815 event pairs, 307 based on Foata normal form. 1050/14720 useless extension candidates. Maximal degree in co-relation 143267. Up to 3183 conditions per place. [2023-11-29 07:20:03,696 INFO L140 encePairwiseOnDemand]: 84/107 looper letters, 1406 selfloop transitions, 1134 changer transitions 20/2738 dead transitions. [2023-11-29 07:20:03,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 689 places, 2738 transitions, 103354 flow [2023-11-29 07:20:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 07:20:03,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 07:20:03,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1620 transitions. [2023-11-29 07:20:03,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7570093457943925 [2023-11-29 07:20:03,699 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1620 transitions. [2023-11-29 07:20:03,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1620 transitions. [2023-11-29 07:20:03,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:20:03,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1620 transitions. [2023-11-29 07:20:03,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 81.0) internal successors, (1620), 20 states have internal predecessors, (1620), 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) [2023-11-29 07:20:03,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 107.0) internal successors, (2247), 21 states have internal predecessors, (2247), 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) [2023-11-29 07:20:03,703 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 107.0) internal successors, (2247), 21 states have internal predecessors, (2247), 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) [2023-11-29 07:20:03,703 INFO L175 Difference]: Start difference. First operand has 670 places, 2214 transitions, 82234 flow. Second operand 20 states and 1620 transitions. [2023-11-29 07:20:03,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 689 places, 2738 transitions, 103354 flow [2023-11-29 07:20:15,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 684 places, 2738 transitions, 102028 flow, removed 75 selfloop flow, removed 5 redundant places. [2023-11-29 07:20:15,735 INFO L231 Difference]: Finished difference. Result has 690 places, 2390 transitions, 92874 flow [2023-11-29 07:20:15,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=81160, PETRI_DIFFERENCE_MINUEND_PLACES=665, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=961, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=92874, PETRI_PLACES=690, PETRI_TRANSITIONS=2390} [2023-11-29 07:20:15,737 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 584 predicate places. [2023-11-29 07:20:15,737 INFO L495 AbstractCegarLoop]: Abstraction has has 690 places, 2390 transitions, 92874 flow [2023-11-29 07:20:15,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 71.42857142857143) internal successors, (1000), 14 states have internal predecessors, (1000), 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) [2023-11-29 07:20:15,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:20:15,738 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:20:15,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 07:20:15,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af8b97b-b2dd-4fba-a00e-8785c19507a4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:20:15,938 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:20:15,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:20:15,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1880338570, now seen corresponding path program 11 times [2023-11-29 07:20:15,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:20:15,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596397882] [2023-11-29 07:20:15,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:20:15,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:20:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:20:18,145 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:20:18,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:20:18,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596397882] [2023-11-29 07:20:18,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596397882] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:20:18,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:20:18,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 07:20:18,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001902102] [2023-11-29 07:20:18,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:20:18,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:20:18,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:20:18,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:20:18,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:20:18,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2023-11-29 07:20:18,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 690 places, 2390 transitions, 92874 flow. Second operand has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:20:18,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:20:18,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2023-11-29 07:20:18,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:20:37,413 INFO L124 PetriNetUnfolderBase]: 4268/13858 cut-off events. [2023-11-29 07:20:37,413 INFO L125 PetriNetUnfolderBase]: For 1138758/1141228 co-relation queries the response was YES. [2023-11-29 07:20:37,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150496 conditions, 13858 events. 4268/13858 cut-off events. For 1138758/1141228 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 158330 event pairs, 336 based on Foata normal form. 1036/14760 useless extension candidates. Maximal degree in co-relation 150065. Up to 5042 conditions per place. [2023-11-29 07:20:37,765 INFO L140 encePairwiseOnDemand]: 89/107 looper letters, 1129 selfloop transitions, 1121 changer transitions 1/2635 dead transitions. [2023-11-29 07:20:37,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 705 places, 2635 transitions, 106311 flow [2023-11-29 07:20:37,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 07:20:37,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 07:20:37,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1329 transitions. [2023-11-29 07:20:37,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7762850467289719 [2023-11-29 07:20:37,767 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1329 transitions. [2023-11-29 07:20:37,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1329 transitions. [2023-11-29 07:20:37,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:20:37,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1329 transitions. [2023-11-29 07:20:37,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 83.0625) internal successors, (1329), 16 states have internal predecessors, (1329), 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) [2023-11-29 07:20:37,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 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) [2023-11-29 07:20:37,772 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 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) [2023-11-29 07:20:37,772 INFO L175 Difference]: Start difference. First operand has 690 places, 2390 transitions, 92874 flow. Second operand 16 states and 1329 transitions. [2023-11-29 07:20:37,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 705 places, 2635 transitions, 106311 flow [2023-11-29 07:20:50,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 702 places, 2635 transitions, 105419 flow, removed 52 selfloop flow, removed 3 redundant places. [2023-11-29 07:20:50,675 INFO L231 Difference]: Finished difference. Result has 710 places, 2515 transitions, 101332 flow [2023-11-29 07:20:50,678 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=92068, PETRI_DIFFERENCE_MINUEND_PLACES=687, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1001, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=101332, PETRI_PLACES=710, PETRI_TRANSITIONS=2515} [2023-11-29 07:20:50,678 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 604 predicate places. [2023-11-29 07:20:50,678 INFO L495 AbstractCegarLoop]: Abstraction has has 710 places, 2515 transitions, 101332 flow [2023-11-29 07:20:50,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:20:50,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:20:50,679 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:20:50,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-11-29 07:20:50,679 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:20:50,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:20:50,679 INFO L85 PathProgramCache]: Analyzing trace with hash -428557694, now seen corresponding path program 12 times [2023-11-29 07:20:50,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:20:50,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996788993] [2023-11-29 07:20:50,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:20:50,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:20:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:20:52,932 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:20:52,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:20:52,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996788993] [2023-11-29 07:20:52,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996788993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:20:52,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:20:52,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 07:20:52,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619057404] [2023-11-29 07:20:52,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:20:52,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:20:52,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:20:52,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:20:52,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:20:53,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2023-11-29 07:20:53,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 710 places, 2515 transitions, 101332 flow. Second operand has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:20:53,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:20:53,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2023-11-29 07:20:53,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:21:10,165 INFO L124 PetriNetUnfolderBase]: 4456/14439 cut-off events. [2023-11-29 07:21:10,165 INFO L125 PetriNetUnfolderBase]: For 1316038/1318983 co-relation queries the response was YES. [2023-11-29 07:21:10,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162116 conditions, 14439 events. 4456/14439 cut-off events. For 1316038/1318983 co-relation queries the response was YES. Maximal size of possible extension queue 742. Compared 166356 event pairs, 357 based on Foata normal form. 1369/15657 useless extension candidates. Maximal degree in co-relation 161677. Up to 5196 conditions per place. [2023-11-29 07:21:10,553 INFO L140 encePairwiseOnDemand]: 89/107 looper letters, 1156 selfloop transitions, 1254 changer transitions 1/2795 dead transitions. [2023-11-29 07:21:10,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 727 places, 2795 transitions, 118280 flow [2023-11-29 07:21:10,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 07:21:10,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 07:21:10,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1502 transitions. [2023-11-29 07:21:10,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7798546209761164 [2023-11-29 07:21:10,555 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1502 transitions. [2023-11-29 07:21:10,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1502 transitions. [2023-11-29 07:21:10,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:21:10,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1502 transitions. [2023-11-29 07:21:10,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 83.44444444444444) internal successors, (1502), 18 states have internal predecessors, (1502), 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) [2023-11-29 07:21:10,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 107.0) internal successors, (2033), 19 states have internal predecessors, (2033), 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) [2023-11-29 07:21:10,558 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 107.0) internal successors, (2033), 19 states have internal predecessors, (2033), 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) [2023-11-29 07:21:10,558 INFO L175 Difference]: Start difference. First operand has 710 places, 2515 transitions, 101332 flow. Second operand 18 states and 1502 transitions. [2023-11-29 07:21:10,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 727 places, 2795 transitions, 118280 flow [2023-11-29 07:21:25,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 721 places, 2795 transitions, 116770 flow, removed 130 selfloop flow, removed 6 redundant places. [2023-11-29 07:21:25,404 INFO L231 Difference]: Finished difference. Result has 729 places, 2672 transitions, 112697 flow [2023-11-29 07:21:25,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=99986, PETRI_DIFFERENCE_MINUEND_PLACES=704, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=112697, PETRI_PLACES=729, PETRI_TRANSITIONS=2672} [2023-11-29 07:21:25,406 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 623 predicate places. [2023-11-29 07:21:25,406 INFO L495 AbstractCegarLoop]: Abstraction has has 729 places, 2672 transitions, 112697 flow [2023-11-29 07:21:25,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:21:25,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:21:25,406 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:21:25,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-11-29 07:21:25,406 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:21:25,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:21:25,406 INFO L85 PathProgramCache]: Analyzing trace with hash 522653224, now seen corresponding path program 13 times [2023-11-29 07:21:25,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:21:25,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876284191] [2023-11-29 07:21:25,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:21:25,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:21:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:21:27,828 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:21:27,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:21:27,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876284191] [2023-11-29 07:21:27,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876284191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:21:27,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:21:27,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 07:21:27,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688357659] [2023-11-29 07:21:27,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:21:27,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:21:27,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:21:27,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:21:27,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:21:28,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2023-11-29 07:21:28,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 729 places, 2672 transitions, 112697 flow. Second operand has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:21:28,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:21:28,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2023-11-29 07:21:28,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:21:47,414 INFO L124 PetriNetUnfolderBase]: 4510/14642 cut-off events. [2023-11-29 07:21:47,414 INFO L125 PetriNetUnfolderBase]: For 1405210/1408243 co-relation queries the response was YES. [2023-11-29 07:21:47,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166672 conditions, 14642 events. 4510/14642 cut-off events. For 1405210/1408243 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 169281 event pairs, 365 based on Foata normal form. 1462/15954 useless extension candidates. Maximal degree in co-relation 166226. Up to 5016 conditions per place. [2023-11-29 07:21:47,942 INFO L140 encePairwiseOnDemand]: 88/107 looper letters, 1144 selfloop transitions, 1333 changer transitions 3/2864 dead transitions. [2023-11-29 07:21:47,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 747 places, 2864 transitions, 123176 flow [2023-11-29 07:21:47,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 07:21:47,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-29 07:21:47,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1574 transitions. [2023-11-29 07:21:47,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7742252828332513 [2023-11-29 07:21:47,945 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1574 transitions. [2023-11-29 07:21:47,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1574 transitions. [2023-11-29 07:21:47,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:21:47,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1574 transitions. [2023-11-29 07:21:47,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 82.84210526315789) internal successors, (1574), 19 states have internal predecessors, (1574), 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) [2023-11-29 07:21:47,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 107.0) internal successors, (2140), 20 states have internal predecessors, (2140), 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) [2023-11-29 07:21:47,948 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 107.0) internal successors, (2140), 20 states have internal predecessors, (2140), 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) [2023-11-29 07:21:47,948 INFO L175 Difference]: Start difference. First operand has 729 places, 2672 transitions, 112697 flow. Second operand 19 states and 1574 transitions. [2023-11-29 07:21:47,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 747 places, 2864 transitions, 123176 flow [2023-11-29 07:22:03,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 740 places, 2864 transitions, 121417 flow, removed 112 selfloop flow, removed 7 redundant places. [2023-11-29 07:22:03,796 INFO L231 Difference]: Finished difference. Result has 751 places, 2740 transitions, 117858 flow [2023-11-29 07:22:03,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=111008, PETRI_DIFFERENCE_MINUEND_PLACES=722, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1268, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=117858, PETRI_PLACES=751, PETRI_TRANSITIONS=2740} [2023-11-29 07:22:03,798 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 645 predicate places. [2023-11-29 07:22:03,798 INFO L495 AbstractCegarLoop]: Abstraction has has 751 places, 2740 transitions, 117858 flow [2023-11-29 07:22:03,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:22:03,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:22:03,799 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:22:03,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-11-29 07:22:03,799 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:22:03,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:22:03,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1182728804, now seen corresponding path program 14 times [2023-11-29 07:22:03,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:22:03,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58117449] [2023-11-29 07:22:03,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:22:03,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:22:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:22:06,958 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:22:06,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:22:06,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58117449] [2023-11-29 07:22:06,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58117449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:22:06,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:22:06,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 07:22:06,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206360151] [2023-11-29 07:22:06,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:22:06,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:22:06,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:22:06,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:22:06,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:22:08,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 107 [2023-11-29 07:22:08,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 751 places, 2740 transitions, 117858 flow. Second operand has 14 states, 14 states have (on average 71.64285714285714) internal successors, (1003), 14 states have internal predecessors, (1003), 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) [2023-11-29 07:22:08,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:22:08,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 107 [2023-11-29 07:22:08,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:22:27,785 INFO L124 PetriNetUnfolderBase]: 4626/15438 cut-off events. [2023-11-29 07:22:27,785 INFO L125 PetriNetUnfolderBase]: For 1603848/1607092 co-relation queries the response was YES. [2023-11-29 07:22:28,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178530 conditions, 15438 events. 4626/15438 cut-off events. For 1603848/1607092 co-relation queries the response was YES. Maximal size of possible extension queue 809. Compared 181932 event pairs, 337 based on Foata normal form. 1446/16695 useless extension candidates. Maximal degree in co-relation 178073. Up to 5807 conditions per place. [2023-11-29 07:22:28,182 INFO L140 encePairwiseOnDemand]: 83/107 looper letters, 1408 selfloop transitions, 1216 changer transitions 7/3087 dead transitions. [2023-11-29 07:22:28,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 768 places, 3087 transitions, 139401 flow [2023-11-29 07:22:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 07:22:28,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 07:22:28,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1371 transitions. [2023-11-29 07:22:28,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7118380062305296 [2023-11-29 07:22:28,184 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1371 transitions. [2023-11-29 07:22:28,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1371 transitions. [2023-11-29 07:22:28,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:22:28,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1371 transitions. [2023-11-29 07:22:28,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 76.16666666666667) internal successors, (1371), 18 states have internal predecessors, (1371), 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) [2023-11-29 07:22:28,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 107.0) internal successors, (2033), 19 states have internal predecessors, (2033), 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) [2023-11-29 07:22:28,189 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 107.0) internal successors, (2033), 19 states have internal predecessors, (2033), 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) [2023-11-29 07:22:28,189 INFO L175 Difference]: Start difference. First operand has 751 places, 2740 transitions, 117858 flow. Second operand 18 states and 1371 transitions. [2023-11-29 07:22:28,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 768 places, 3087 transitions, 139401 flow [2023-11-29 07:22:50,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 761 places, 3087 transitions, 137298 flow, removed 184 selfloop flow, removed 7 redundant places. [2023-11-29 07:22:50,614 INFO L231 Difference]: Finished difference. Result has 770 places, 3005 transitions, 134824 flow [2023-11-29 07:22:50,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=116107, PETRI_DIFFERENCE_MINUEND_PLACES=744, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2740, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=961, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=134824, PETRI_PLACES=770, PETRI_TRANSITIONS=3005} [2023-11-29 07:22:50,616 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 664 predicate places. [2023-11-29 07:22:50,616 INFO L495 AbstractCegarLoop]: Abstraction has has 770 places, 3005 transitions, 134824 flow [2023-11-29 07:22:50,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 71.64285714285714) internal successors, (1003), 14 states have internal predecessors, (1003), 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) [2023-11-29 07:22:50,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:22:50,616 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:22:50,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-11-29 07:22:50,616 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:22:50,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:22:50,617 INFO L85 PathProgramCache]: Analyzing trace with hash -269800978, now seen corresponding path program 15 times [2023-11-29 07:22:50,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:22:50,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550773857] [2023-11-29 07:22:50,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:22:50,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:22:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:22:52,905 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:22:52,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:22:52,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550773857] [2023-11-29 07:22:52,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550773857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:22:52,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:22:52,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 07:22:52,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336701545] [2023-11-29 07:22:52,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:22:52,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:22:52,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:22:52,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:22:52,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:22:53,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2023-11-29 07:22:53,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 770 places, 3005 transitions, 134824 flow. Second operand has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:22:53,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:22:53,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2023-11-29 07:22:53,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:23:16,178 INFO L124 PetriNetUnfolderBase]: 5069/16453 cut-off events. [2023-11-29 07:23:16,179 INFO L125 PetriNetUnfolderBase]: For 1814000/1817521 co-relation queries the response was YES. [2023-11-29 07:23:16,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193391 conditions, 16453 events. 5069/16453 cut-off events. For 1814000/1817521 co-relation queries the response was YES. Maximal size of possible extension queue 850. Compared 193886 event pairs, 461 based on Foata normal form. 1550/17829 useless extension candidates. Maximal degree in co-relation 192926. Up to 3782 conditions per place. [2023-11-29 07:23:16,602 INFO L140 encePairwiseOnDemand]: 88/107 looper letters, 1392 selfloop transitions, 1500 changer transitions 1/3313 dead transitions. [2023-11-29 07:23:16,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 783 places, 3313 transitions, 149112 flow [2023-11-29 07:23:16,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:23:16,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-29 07:23:16,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1209 transitions. [2023-11-29 07:23:16,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8070761014686249 [2023-11-29 07:23:16,604 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1209 transitions. [2023-11-29 07:23:16,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1209 transitions. [2023-11-29 07:23:16,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:23:16,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1209 transitions. [2023-11-29 07:23:16,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 86.35714285714286) internal successors, (1209), 14 states have internal predecessors, (1209), 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) [2023-11-29 07:23:16,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 107.0) internal successors, (1605), 15 states have internal predecessors, (1605), 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) [2023-11-29 07:23:16,607 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 107.0) internal successors, (1605), 15 states have internal predecessors, (1605), 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) [2023-11-29 07:23:16,607 INFO L175 Difference]: Start difference. First operand has 770 places, 3005 transitions, 134824 flow. Second operand 14 states and 1209 transitions. [2023-11-29 07:23:16,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 783 places, 3313 transitions, 149112 flow [2023-11-29 07:23:35,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 778 places, 3313 transitions, 148938 flow, removed 78 selfloop flow, removed 5 redundant places. [2023-11-29 07:23:35,102 INFO L231 Difference]: Finished difference. Result has 787 places, 3105 transitions, 143557 flow [2023-11-29 07:23:35,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=134650, PETRI_DIFFERENCE_MINUEND_PLACES=765, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3005, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1403, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1563, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=143557, PETRI_PLACES=787, PETRI_TRANSITIONS=3105} [2023-11-29 07:23:35,104 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 681 predicate places. [2023-11-29 07:23:35,104 INFO L495 AbstractCegarLoop]: Abstraction has has 787 places, 3105 transitions, 143557 flow [2023-11-29 07:23:35,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 75.41666666666667) internal successors, (905), 12 states have internal predecessors, (905), 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) [2023-11-29 07:23:35,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:23:35,105 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:23:35,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-11-29 07:23:35,105 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:23:35,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:23:35,105 INFO L85 PathProgramCache]: Analyzing trace with hash 90629102, now seen corresponding path program 16 times [2023-11-29 07:23:35,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:23:35,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561815395] [2023-11-29 07:23:35,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:23:35,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:23:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:23:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:23:37,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:23:37,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561815395] [2023-11-29 07:23:37,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561815395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:23:37,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:23:37,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 07:23:37,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481309561] [2023-11-29 07:23:37,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:23:37,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:23:37,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:23:37,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:23:37,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:23:37,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 107 [2023-11-29 07:23:37,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 787 places, 3105 transitions, 143557 flow. Second operand has 10 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 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) [2023-11-29 07:23:37,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:23:37,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 107 [2023-11-29 07:23:37,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:23:55,888 INFO L124 PetriNetUnfolderBase]: 4726/15756 cut-off events. [2023-11-29 07:23:55,889 INFO L125 PetriNetUnfolderBase]: For 1876968/1880514 co-relation queries the response was YES. [2023-11-29 07:23:56,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191126 conditions, 15756 events. 4726/15756 cut-off events. For 1876968/1880514 co-relation queries the response was YES. Maximal size of possible extension queue 848. Compared 186817 event pairs, 341 based on Foata normal form. 1524/17091 useless extension candidates. Maximal degree in co-relation 190652. Up to 3172 conditions per place. [2023-11-29 07:23:56,256 INFO L140 encePairwiseOnDemand]: 91/107 looper letters, 1236 selfloop transitions, 1449 changer transitions 7/3248 dead transitions. [2023-11-29 07:23:56,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 797 places, 3248 transitions, 152027 flow [2023-11-29 07:23:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:23:56,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 07:23:56,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 969 transitions. [2023-11-29 07:23:56,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8232795242141037 [2023-11-29 07:23:56,258 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 969 transitions. [2023-11-29 07:23:56,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 969 transitions. [2023-11-29 07:23:56,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:23:56,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 969 transitions. [2023-11-29 07:23:56,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 88.0909090909091) internal successors, (969), 11 states have internal predecessors, (969), 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) [2023-11-29 07:23:56,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:23:56,260 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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) [2023-11-29 07:23:56,260 INFO L175 Difference]: Start difference. First operand has 787 places, 3105 transitions, 143557 flow. Second operand 11 states and 969 transitions. [2023-11-29 07:23:56,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 797 places, 3248 transitions, 152027 flow [2023-11-29 07:24:14,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 793 places, 3248 transitions, 150351 flow, removed 97 selfloop flow, removed 4 redundant places. [2023-11-29 07:24:14,828 INFO L231 Difference]: Finished difference. Result has 794 places, 3100 transitions, 145008 flow [2023-11-29 07:24:14,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=141900, PETRI_DIFFERENCE_MINUEND_PLACES=783, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1449, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1656, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=145008, PETRI_PLACES=794, PETRI_TRANSITIONS=3100} [2023-11-29 07:24:14,831 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 688 predicate places. [2023-11-29 07:24:14,831 INFO L495 AbstractCegarLoop]: Abstraction has has 794 places, 3100 transitions, 145008 flow [2023-11-29 07:24:14,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 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) [2023-11-29 07:24:14,831 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:24:14,831 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:24:14,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-11-29 07:24:14,832 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:24:14,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:24:14,832 INFO L85 PathProgramCache]: Analyzing trace with hash 676119554, now seen corresponding path program 17 times [2023-11-29 07:24:14,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:24:14,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117077705] [2023-11-29 07:24:14,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:24:14,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:24:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat