./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/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_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/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_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:23:36,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:23:36,252 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 06:23:36,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:23:36,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:23:36,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:23:36,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:23:36,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:23:36,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:23:36,286 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:23:36,287 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:23:36,287 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:23:36,288 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:23:36,288 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:23:36,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:23:36,289 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:23:36,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:23:36,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:23:36,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:23:36,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:23:36,292 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:23:36,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:23:36,298 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 06:23:36,298 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:23:36,298 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:23:36,299 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:23:36,299 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:23:36,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:23:36,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:23:36,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:23:36,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:23:36,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:23:36,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:23:36,301 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:23:36,302 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:23:36,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:23:36,302 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:23:36,302 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:23:36,302 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:23:36,303 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:23:36,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:23:36,303 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_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2023-11-29 06:23:36,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:23:36,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:23:36,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:23:36,556 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:23:36,557 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:23:36,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2023-11-29 06:23:39,327 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:23:39,572 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:23:39,573 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2023-11-29 06:23:39,593 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/data/616a53eaf/1f67067651b9422cacc989fc7fc94d78/FLAG962fd993f [2023-11-29 06:23:39,605 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/data/616a53eaf/1f67067651b9422cacc989fc7fc94d78 [2023-11-29 06:23:39,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:23:39,610 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:23:39,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:23:39,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:23:39,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:23:39,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:23:39" (1/1) ... [2023-11-29 06:23:39,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f4c3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:39, skipping insertion in model container [2023-11-29 06:23:39,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:23:39" (1/1) ... [2023-11-29 06:23:39,671 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:23:40,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:23:40,234 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:23:40,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:23:40,376 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:23:40,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:40 WrapperNode [2023-11-29 06:23:40,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:23:40,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:23:40,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:23:40,378 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:23:40,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:40" (1/1) ... [2023-11-29 06:23:40,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:40" (1/1) ... [2023-11-29 06:23:40,438 INFO L138 Inliner]: procedures = 369, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 237 [2023-11-29 06:23:40,439 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:23:40,440 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:23:40,440 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:23:40,440 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:23:40,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:40" (1/1) ... [2023-11-29 06:23:40,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:40" (1/1) ... [2023-11-29 06:23:40,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:40" (1/1) ... [2023-11-29 06:23:40,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:40" (1/1) ... [2023-11-29 06:23:40,476 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:40" (1/1) ... [2023-11-29 06:23:40,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:40" (1/1) ... [2023-11-29 06:23:40,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:40" (1/1) ... [2023-11-29 06:23:40,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:40" (1/1) ... [2023-11-29 06:23:40,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:23:40,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:23:40,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:23:40,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:23:40,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:40" (1/1) ... [2023-11-29 06:23:40,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:23:40,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:23:40,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:23:40,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:23:40,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:23:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-29 06:23:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:23:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 06:23:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 06:23:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 06:23:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 06:23:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 06:23:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:23:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-29 06:23:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 06:23:40,566 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 06:23:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:23:40,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:23:40,568 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 06:23:40,721 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:23:40,723 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:23:41,166 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:23:41,190 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:23:41,190 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-29 06:23:41,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:23:41 BoogieIcfgContainer [2023-11-29 06:23:41,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:23:41,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:23:41,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:23:41,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:23:41,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:23:39" (1/3) ... [2023-11-29 06:23:41,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f29d268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:23:41, skipping insertion in model container [2023-11-29 06:23:41,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:40" (2/3) ... [2023-11-29 06:23:41,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f29d268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:23:41, skipping insertion in model container [2023-11-29 06:23:41,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:23:41" (3/3) ... [2023-11-29 06:23:41,200 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2023-11-29 06:23:41,209 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 06:23:41,220 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:23:41,220 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-29 06:23:41,220 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 06:23:41,310 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 06:23:41,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 267 transitions, 538 flow [2023-11-29 06:23:41,469 INFO L124 PetriNetUnfolderBase]: 6/266 cut-off events. [2023-11-29 06:23:41,469 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:23:41,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 266 events. 6/266 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 428 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-11-29 06:23:41,478 INFO L82 GeneralOperation]: Start removeDead. Operand has 265 places, 267 transitions, 538 flow [2023-11-29 06:23:41,486 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 266 transitions, 535 flow [2023-11-29 06:23:41,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:23:41,503 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;@5acbb0b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:23:41,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-29 06:23:41,515 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:23:41,516 INFO L124 PetriNetUnfolderBase]: 3/67 cut-off events. [2023-11-29 06:23:41,516 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:23:41,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:23:41,517 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] [2023-11-29 06:23:41,517 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:23:41,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:23:41,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1470461029, now seen corresponding path program 1 times [2023-11-29 06:23:41,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:23:41,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071772609] [2023-11-29 06:23:41,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:23:41,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:23:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:23:42,234 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 06:23:42,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:23:42,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071772609] [2023-11-29 06:23:42,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071772609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:23:42,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:23:42,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:23:42,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852030420] [2023-11-29 06:23:42,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:23:42,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:23:42,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:23:42,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:23:42,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:23:42,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 267 [2023-11-29 06:23:42,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 266 transitions, 535 flow. Second operand has 6 states, 6 states have (on average 182.33333333333334) internal successors, (1094), 6 states have internal predecessors, (1094), 0 states have call successors, (0), 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 06:23:42,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:23:42,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 267 [2023-11-29 06:23:42,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:23:43,918 INFO L124 PetriNetUnfolderBase]: 1265/4885 cut-off events. [2023-11-29 06:23:43,918 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 06:23:43,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7429 conditions, 4885 events. 1265/4885 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 36485 event pairs, 912 based on Foata normal form. 137/4612 useless extension candidates. Maximal degree in co-relation 7347. Up to 2359 conditions per place. [2023-11-29 06:23:43,946 INFO L140 encePairwiseOnDemand]: 227/267 looper letters, 84 selfloop transitions, 107 changer transitions 0/371 dead transitions. [2023-11-29 06:23:43,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 371 transitions, 1127 flow [2023-11-29 06:23:43,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:23:43,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:23:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1286 transitions. [2023-11-29 06:23:43,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8027465667915106 [2023-11-29 06:23:43,964 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1286 transitions. [2023-11-29 06:23:43,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1286 transitions. [2023-11-29 06:23:43,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:23:43,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1286 transitions. [2023-11-29 06:23:43,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 214.33333333333334) internal successors, (1286), 6 states have internal predecessors, (1286), 0 states have call successors, (0), 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 06:23:43,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 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 06:23:43,986 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 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 06:23:43,987 INFO L175 Difference]: Start difference. First operand has 264 places, 266 transitions, 535 flow. Second operand 6 states and 1286 transitions. [2023-11-29 06:23:43,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 371 transitions, 1127 flow [2023-11-29 06:23:43,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 371 transitions, 1126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:23:44,000 INFO L231 Difference]: Finished difference. Result has 272 places, 363 transitions, 1216 flow [2023-11-29 06:23:44,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1216, PETRI_PLACES=272, PETRI_TRANSITIONS=363} [2023-11-29 06:23:44,005 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 8 predicate places. [2023-11-29 06:23:44,006 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 363 transitions, 1216 flow [2023-11-29 06:23:44,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.33333333333334) internal successors, (1094), 6 states have internal predecessors, (1094), 0 states have call successors, (0), 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 06:23:44,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:23:44,007 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] [2023-11-29 06:23:44,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:23:44,007 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:23:44,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:23:44,008 INFO L85 PathProgramCache]: Analyzing trace with hash 572903943, now seen corresponding path program 1 times [2023-11-29 06:23:44,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:23:44,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343831108] [2023-11-29 06:23:44,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:23:44,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:23:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:23:44,358 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 06:23:44,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:23:44,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343831108] [2023-11-29 06:23:44,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343831108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:23:44,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:23:44,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:23:44,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626600146] [2023-11-29 06:23:44,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:23:44,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:23:44,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:23:44,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:23:44,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:23:44,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 267 [2023-11-29 06:23:44,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 363 transitions, 1216 flow. Second operand has 6 states, 6 states have (on average 182.33333333333334) internal successors, (1094), 6 states have internal predecessors, (1094), 0 states have call successors, (0), 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 06:23:44,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:23:44,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 267 [2023-11-29 06:23:44,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:23:45,943 INFO L124 PetriNetUnfolderBase]: 1531/5769 cut-off events. [2023-11-29 06:23:45,944 INFO L125 PetriNetUnfolderBase]: For 1214/1217 co-relation queries the response was YES. [2023-11-29 06:23:45,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10561 conditions, 5769 events. 1531/5769 cut-off events. For 1214/1217 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 44422 event pairs, 936 based on Foata normal form. 0/5326 useless extension candidates. Maximal degree in co-relation 10466. Up to 2637 conditions per place. [2023-11-29 06:23:46,025 INFO L140 encePairwiseOnDemand]: 230/267 looper letters, 180 selfloop transitions, 107 changer transitions 0/471 dead transitions. [2023-11-29 06:23:46,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 471 transitions, 2198 flow [2023-11-29 06:23:46,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:23:46,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:23:46,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1279 transitions. [2023-11-29 06:23:46,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7983770287141073 [2023-11-29 06:23:46,031 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1279 transitions. [2023-11-29 06:23:46,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1279 transitions. [2023-11-29 06:23:46,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:23:46,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1279 transitions. [2023-11-29 06:23:46,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.16666666666666) internal successors, (1279), 6 states have internal predecessors, (1279), 0 states have call successors, (0), 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 06:23:46,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 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 06:23:46,044 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 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 06:23:46,045 INFO L175 Difference]: Start difference. First operand has 272 places, 363 transitions, 1216 flow. Second operand 6 states and 1279 transitions. [2023-11-29 06:23:46,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 471 transitions, 2198 flow [2023-11-29 06:23:46,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 471 transitions, 2198 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:23:46,067 INFO L231 Difference]: Finished difference. Result has 281 places, 463 transitions, 2096 flow [2023-11-29 06:23:46,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1214, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2096, PETRI_PLACES=281, PETRI_TRANSITIONS=463} [2023-11-29 06:23:46,068 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 17 predicate places. [2023-11-29 06:23:46,068 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 463 transitions, 2096 flow [2023-11-29 06:23:46,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.33333333333334) internal successors, (1094), 6 states have internal predecessors, (1094), 0 states have call successors, (0), 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 06:23:46,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:23:46,069 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] [2023-11-29 06:23:46,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:23:46,070 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:23:46,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:23:46,071 INFO L85 PathProgramCache]: Analyzing trace with hash -826497430, now seen corresponding path program 1 times [2023-11-29 06:23:46,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:23:46,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229164832] [2023-11-29 06:23:46,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:23:46,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:23:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:23:46,122 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 06:23:46,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:23:46,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229164832] [2023-11-29 06:23:46,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229164832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:23:46,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:23:46,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:23:46,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130811734] [2023-11-29 06:23:46,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:23:46,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:23:46,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:23:46,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:23:46,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:23:46,184 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 267 [2023-11-29 06:23:46,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 463 transitions, 2096 flow. Second operand has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 0 states have call successors, (0), 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 06:23:46,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:23:46,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 267 [2023-11-29 06:23:46,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:23:46,969 INFO L124 PetriNetUnfolderBase]: 1081/4368 cut-off events. [2023-11-29 06:23:46,969 INFO L125 PetriNetUnfolderBase]: For 1100/1106 co-relation queries the response was YES. [2023-11-29 06:23:46,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8778 conditions, 4368 events. 1081/4368 cut-off events. For 1100/1106 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 28514 event pairs, 108 based on Foata normal form. 4/4126 useless extension candidates. Maximal degree in co-relation 8615. Up to 1137 conditions per place. [2023-11-29 06:23:47,007 INFO L140 encePairwiseOnDemand]: 261/267 looper letters, 16 selfloop transitions, 4 changer transitions 0/469 dead transitions. [2023-11-29 06:23:47,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 469 transitions, 2148 flow [2023-11-29 06:23:47,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:23:47,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:23:47,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 772 transitions. [2023-11-29 06:23:47,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9637952559300874 [2023-11-29 06:23:47,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 772 transitions. [2023-11-29 06:23:47,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 772 transitions. [2023-11-29 06:23:47,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:23:47,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 772 transitions. [2023-11-29 06:23:47,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 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 06:23:47,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 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 06:23:47,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 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 06:23:47,017 INFO L175 Difference]: Start difference. First operand has 281 places, 463 transitions, 2096 flow. Second operand 3 states and 772 transitions. [2023-11-29 06:23:47,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 469 transitions, 2148 flow [2023-11-29 06:23:47,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 469 transitions, 1956 flow, removed 96 selfloop flow, removed 0 redundant places. [2023-11-29 06:23:47,043 INFO L231 Difference]: Finished difference. Result has 284 places, 465 transitions, 1928 flow [2023-11-29 06:23:47,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1904, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1928, PETRI_PLACES=284, PETRI_TRANSITIONS=465} [2023-11-29 06:23:47,045 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 20 predicate places. [2023-11-29 06:23:47,045 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 465 transitions, 1928 flow [2023-11-29 06:23:47,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 0 states have call successors, (0), 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 06:23:47,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:23:47,046 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:23:47,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:23:47,047 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:23:47,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:23:47,047 INFO L85 PathProgramCache]: Analyzing trace with hash 340895407, now seen corresponding path program 1 times [2023-11-29 06:23:47,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:23:47,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982639783] [2023-11-29 06:23:47,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:23:47,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:23:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:23:47,520 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 06:23:47,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:23:47,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982639783] [2023-11-29 06:23:47,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982639783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:23:47,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:23:47,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:23:47,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832598806] [2023-11-29 06:23:47,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:23:47,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:23:47,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:23:47,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:23:47,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:23:48,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 267 [2023-11-29 06:23:48,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 465 transitions, 1928 flow. Second operand has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 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 06:23:48,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:23:48,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 267 [2023-11-29 06:23:48,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:23:50,092 INFO L124 PetriNetUnfolderBase]: 2970/10628 cut-off events. [2023-11-29 06:23:50,092 INFO L125 PetriNetUnfolderBase]: For 5996/6095 co-relation queries the response was YES. [2023-11-29 06:23:50,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23684 conditions, 10628 events. 2970/10628 cut-off events. For 5996/6095 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 84878 event pairs, 1872 based on Foata normal form. 0/10087 useless extension candidates. Maximal degree in co-relation 23486. Up to 5591 conditions per place. [2023-11-29 06:23:50,162 INFO L140 encePairwiseOnDemand]: 261/267 looper letters, 285 selfloop transitions, 5 changer transitions 0/464 dead transitions. [2023-11-29 06:23:50,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 464 transitions, 2506 flow [2023-11-29 06:23:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:23:50,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:23:50,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1129 transitions. [2023-11-29 06:23:50,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7047440699126092 [2023-11-29 06:23:50,168 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1129 transitions. [2023-11-29 06:23:50,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1129 transitions. [2023-11-29 06:23:50,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:23:50,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1129 transitions. [2023-11-29 06:23:50,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 188.16666666666666) internal successors, (1129), 6 states have internal predecessors, (1129), 0 states have call successors, (0), 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 06:23:50,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 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 06:23:50,182 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 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 06:23:50,182 INFO L175 Difference]: Start difference. First operand has 284 places, 465 transitions, 1928 flow. Second operand 6 states and 1129 transitions. [2023-11-29 06:23:50,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 464 transitions, 2506 flow [2023-11-29 06:23:50,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 464 transitions, 2502 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:23:50,207 INFO L231 Difference]: Finished difference. Result has 287 places, 464 transitions, 1932 flow [2023-11-29 06:23:50,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1922, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1932, PETRI_PLACES=287, PETRI_TRANSITIONS=464} [2023-11-29 06:23:50,209 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 23 predicate places. [2023-11-29 06:23:50,209 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 464 transitions, 1932 flow [2023-11-29 06:23:50,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 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 06:23:50,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:23:50,210 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:23:50,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:23:50,210 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:23:50,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:23:50,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1149405863, now seen corresponding path program 1 times [2023-11-29 06:23:50,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:23:50,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190489682] [2023-11-29 06:23:50,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:23:50,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:23:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:23:50,347 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 06:23:50,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:23:50,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190489682] [2023-11-29 06:23:50,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190489682] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:23:50,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070868155] [2023-11-29 06:23:50,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:23:50,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:23:50,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:23:50,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:23:50,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:23:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:23:50,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:23:50,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:23:50,644 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 06:23:50,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:23:50,729 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 06:23:50,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070868155] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:23:50,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:23:50,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-29 06:23:50,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985516011] [2023-11-29 06:23:50,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:23:50,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:23:50,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:23:50,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:23:50,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:23:50,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 267 [2023-11-29 06:23:51,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 464 transitions, 1932 flow. Second operand has 10 states, 10 states have (on average 248.0) internal successors, (2480), 10 states have internal predecessors, (2480), 0 states have call successors, (0), 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 06:23:51,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:23:51,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 267 [2023-11-29 06:23:51,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:23:52,103 INFO L124 PetriNetUnfolderBase]: 1085/4413 cut-off events. [2023-11-29 06:23:52,104 INFO L125 PetriNetUnfolderBase]: For 677/683 co-relation queries the response was YES. [2023-11-29 06:23:52,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8658 conditions, 4413 events. 1085/4413 cut-off events. For 677/683 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 28292 event pairs, 102 based on Foata normal form. 2/4169 useless extension candidates. Maximal degree in co-relation 8420. Up to 898 conditions per place. [2023-11-29 06:23:52,122 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 22 selfloop transitions, 13 changer transitions 0/479 dead transitions. [2023-11-29 06:23:52,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 479 transitions, 2034 flow [2023-11-29 06:23:52,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:23:52,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 06:23:52,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2251 transitions. [2023-11-29 06:23:52,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9367457344985435 [2023-11-29 06:23:52,130 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2251 transitions. [2023-11-29 06:23:52,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2251 transitions. [2023-11-29 06:23:52,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:23:52,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2251 transitions. [2023-11-29 06:23:52,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 250.11111111111111) internal successors, (2251), 9 states have internal predecessors, (2251), 0 states have call successors, (0), 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 06:23:52,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 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 06:23:52,146 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 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 06:23:52,146 INFO L175 Difference]: Start difference. First operand has 287 places, 464 transitions, 1932 flow. Second operand 9 states and 2251 transitions. [2023-11-29 06:23:52,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 479 transitions, 2034 flow [2023-11-29 06:23:52,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 479 transitions, 2024 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 06:23:52,169 INFO L231 Difference]: Finished difference. Result has 293 places, 471 transitions, 1990 flow [2023-11-29 06:23:52,169 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1922, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1990, PETRI_PLACES=293, PETRI_TRANSITIONS=471} [2023-11-29 06:23:52,170 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 29 predicate places. [2023-11-29 06:23:52,170 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 471 transitions, 1990 flow [2023-11-29 06:23:52,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 248.0) internal successors, (2480), 10 states have internal predecessors, (2480), 0 states have call successors, (0), 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 06:23:52,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:23:52,172 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 06:23:52,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:23:52,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:23:52,373 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:23:52,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:23:52,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1047357319, now seen corresponding path program 2 times [2023-11-29 06:23:52,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:23:52,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450138726] [2023-11-29 06:23:52,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:23:52,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:23:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:23:52,801 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:23:52,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:23:52,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450138726] [2023-11-29 06:23:52,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450138726] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:23:52,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314143308] [2023-11-29 06:23:52,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:23:52,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:23:52,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:23:52,803 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:23:52,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:23:52,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 06:23:52,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:23:52,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:23:52,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:23:53,044 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 11 treesize of output 7 [2023-11-29 06:23:53,069 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 19 treesize of output 18 [2023-11-29 06:23:53,108 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:23:53,109 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 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-29 06:23:53,153 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:23:53,153 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 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-29 06:23:53,189 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2023-11-29 06:23:53,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:23:53,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314143308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:23:53,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:23:53,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2023-11-29 06:23:53,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301780618] [2023-11-29 06:23:53,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:23:53,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:23:53,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:23:53,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:23:53,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:23:53,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 267 [2023-11-29 06:23:53,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 471 transitions, 1990 flow. Second operand has 8 states, 8 states have (on average 185.0) internal successors, (1480), 8 states have internal predecessors, (1480), 0 states have call successors, (0), 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 06:23:53,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:23:53,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 267 [2023-11-29 06:23:53,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:23:56,653 INFO L124 PetriNetUnfolderBase]: 3714/12851 cut-off events. [2023-11-29 06:23:56,653 INFO L125 PetriNetUnfolderBase]: For 5332/5410 co-relation queries the response was YES. [2023-11-29 06:23:56,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28179 conditions, 12851 events. 3714/12851 cut-off events. For 5332/5410 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 104020 event pairs, 1333 based on Foata normal form. 0/12093 useless extension candidates. Maximal degree in co-relation 27903. Up to 4028 conditions per place. [2023-11-29 06:23:56,724 INFO L140 encePairwiseOnDemand]: 220/267 looper letters, 375 selfloop transitions, 174 changer transitions 0/772 dead transitions. [2023-11-29 06:23:56,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 772 transitions, 3962 flow [2023-11-29 06:23:56,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:23:56,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 06:23:56,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1992 transitions. [2023-11-29 06:23:56,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8289637952559301 [2023-11-29 06:23:56,731 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1992 transitions. [2023-11-29 06:23:56,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1992 transitions. [2023-11-29 06:23:56,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:23:56,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1992 transitions. [2023-11-29 06:23:56,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 221.33333333333334) internal successors, (1992), 9 states have internal predecessors, (1992), 0 states have call successors, (0), 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 06:23:56,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 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 06:23:56,743 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 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 06:23:56,744 INFO L175 Difference]: Start difference. First operand has 293 places, 471 transitions, 1990 flow. Second operand 9 states and 1992 transitions. [2023-11-29 06:23:56,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 772 transitions, 3962 flow [2023-11-29 06:23:56,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 772 transitions, 3952 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-11-29 06:23:56,776 INFO L231 Difference]: Finished difference. Result has 305 places, 632 transitions, 3456 flow [2023-11-29 06:23:56,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1980, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3456, PETRI_PLACES=305, PETRI_TRANSITIONS=632} [2023-11-29 06:23:56,778 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 41 predicate places. [2023-11-29 06:23:56,778 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 632 transitions, 3456 flow [2023-11-29 06:23:56,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 185.0) internal successors, (1480), 8 states have internal predecessors, (1480), 0 states have call successors, (0), 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 06:23:56,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:23:56,780 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2023-11-29 06:23:56,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:23:56,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 06:23:56,980 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:23:56,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:23:56,981 INFO L85 PathProgramCache]: Analyzing trace with hash 2109208062, now seen corresponding path program 1 times [2023-11-29 06:23:56,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:23:56,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379139882] [2023-11-29 06:23:56,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:23:56,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:23:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:23:57,319 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:23:57,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:23:57,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379139882] [2023-11-29 06:23:57,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379139882] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:23:57,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750591597] [2023-11-29 06:23:57,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:23:57,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:23:57,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:23:57,325 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:23:57,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:23:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:23:57,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:23:57,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:23:57,780 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:23:57,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:23:58,060 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:23:58,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750591597] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:23:58,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:23:58,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-29 06:23:58,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446056531] [2023-11-29 06:23:58,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:23:58,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 06:23:58,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:23:58,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 06:23:58,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:23:58,376 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 267 [2023-11-29 06:23:58,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 632 transitions, 3456 flow. Second operand has 18 states, 18 states have (on average 248.0) internal successors, (4464), 18 states have internal predecessors, (4464), 0 states have call successors, (0), 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 06:23:58,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:23:58,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 267 [2023-11-29 06:23:58,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:24:00,188 INFO L124 PetriNetUnfolderBase]: 1973/7250 cut-off events. [2023-11-29 06:24:00,188 INFO L125 PetriNetUnfolderBase]: For 8553/8626 co-relation queries the response was YES. [2023-11-29 06:24:00,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19933 conditions, 7250 events. 1973/7250 cut-off events. For 8553/8626 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 50276 event pairs, 198 based on Foata normal form. 4/6921 useless extension candidates. Maximal degree in co-relation 19389. Up to 1785 conditions per place. [2023-11-29 06:24:00,224 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 26 selfloop transitions, 25 changer transitions 0/656 dead transitions. [2023-11-29 06:24:00,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 656 transitions, 3658 flow [2023-11-29 06:24:00,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 06:24:00,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 06:24:00,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5221 transitions. [2023-11-29 06:24:00,240 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9311574817192795 [2023-11-29 06:24:00,240 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5221 transitions. [2023-11-29 06:24:00,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5221 transitions. [2023-11-29 06:24:00,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:24:00,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5221 transitions. [2023-11-29 06:24:00,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 248.61904761904762) internal successors, (5221), 21 states have internal predecessors, (5221), 0 states have call successors, (0), 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 06:24:00,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 267.0) internal successors, (5874), 22 states have internal predecessors, (5874), 0 states have call successors, (0), 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 06:24:00,278 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 267.0) internal successors, (5874), 22 states have internal predecessors, (5874), 0 states have call successors, (0), 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 06:24:00,278 INFO L175 Difference]: Start difference. First operand has 305 places, 632 transitions, 3456 flow. Second operand 21 states and 5221 transitions. [2023-11-29 06:24:00,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 656 transitions, 3658 flow [2023-11-29 06:24:00,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 656 transitions, 3616 flow, removed 18 selfloop flow, removed 3 redundant places. [2023-11-29 06:24:00,447 INFO L231 Difference]: Finished difference. Result has 327 places, 645 transitions, 3558 flow [2023-11-29 06:24:00,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3414, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3558, PETRI_PLACES=327, PETRI_TRANSITIONS=645} [2023-11-29 06:24:00,448 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 63 predicate places. [2023-11-29 06:24:00,449 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 645 transitions, 3558 flow [2023-11-29 06:24:00,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 248.0) internal successors, (4464), 18 states have internal predecessors, (4464), 0 states have call successors, (0), 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 06:24:00,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:24:00,451 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-29 06:24:00,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:24:00,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 06:24:00,659 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:24:00,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:00,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1870437314, now seen corresponding path program 2 times [2023-11-29 06:24:00,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:00,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359286936] [2023-11-29 06:24:00,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:00,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:01,688 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:24:01,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:01,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359286936] [2023-11-29 06:24:01,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359286936] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:24:01,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724470203] [2023-11-29 06:24:01,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:24:01,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:01,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:01,690 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:01,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:24:01,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 06:24:01,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:24:01,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:24:01,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:01,990 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 06:24:02,011 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 23 treesize of output 22 [2023-11-29 06:24:02,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:24:02,039 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 32 treesize of output 34 [2023-11-29 06:24:02,074 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:24:02,074 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 41 treesize of output 46 [2023-11-29 06:24:02,110 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2023-11-29 06:24:02,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:02,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724470203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:02,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:24:02,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-29 06:24:02,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466579052] [2023-11-29 06:24:02,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:02,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:24:02,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:02,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:24:02,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:24:02,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 267 [2023-11-29 06:24:02,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 645 transitions, 3558 flow. Second operand has 6 states, 6 states have (on average 187.66666666666666) internal successors, (1126), 6 states have internal predecessors, (1126), 0 states have call successors, (0), 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 06:24:02,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:24:02,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 267 [2023-11-29 06:24:02,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:24:07,484 INFO L124 PetriNetUnfolderBase]: 4449/14897 cut-off events. [2023-11-29 06:24:07,485 INFO L125 PetriNetUnfolderBase]: For 26810/26999 co-relation queries the response was YES. [2023-11-29 06:24:07,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46798 conditions, 14897 events. 4449/14897 cut-off events. For 26810/26999 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 120780 event pairs, 1707 based on Foata normal form. 0/14081 useless extension candidates. Maximal degree in co-relation 46162. Up to 6971 conditions per place. [2023-11-29 06:24:07,598 INFO L140 encePairwiseOnDemand]: 224/267 looper letters, 395 selfloop transitions, 170 changer transitions 0/814 dead transitions. [2023-11-29 06:24:07,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 814 transitions, 6330 flow [2023-11-29 06:24:07,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:24:07,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:24:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1342 transitions. [2023-11-29 06:24:07,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8377028714107366 [2023-11-29 06:24:07,603 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1342 transitions. [2023-11-29 06:24:07,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1342 transitions. [2023-11-29 06:24:07,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:24:07,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1342 transitions. [2023-11-29 06:24:07,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 223.66666666666666) internal successors, (1342), 6 states have internal predecessors, (1342), 0 states have call successors, (0), 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 06:24:07,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 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 06:24:07,613 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 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 06:24:07,613 INFO L175 Difference]: Start difference. First operand has 327 places, 645 transitions, 3558 flow. Second operand 6 states and 1342 transitions. [2023-11-29 06:24:07,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 814 transitions, 6330 flow [2023-11-29 06:24:07,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 814 transitions, 6304 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-29 06:24:07,684 INFO L231 Difference]: Finished difference. Result has 331 places, 806 transitions, 5946 flow [2023-11-29 06:24:07,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3532, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5946, PETRI_PLACES=331, PETRI_TRANSITIONS=806} [2023-11-29 06:24:07,685 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 67 predicate places. [2023-11-29 06:24:07,685 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 806 transitions, 5946 flow [2023-11-29 06:24:07,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.66666666666666) internal successors, (1126), 6 states have internal predecessors, (1126), 0 states have call successors, (0), 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 06:24:07,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:24:07,686 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:07,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 06:24:07,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:07,887 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:24:07,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:07,888 INFO L85 PathProgramCache]: Analyzing trace with hash 539432056, now seen corresponding path program 1 times [2023-11-29 06:24:07,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:07,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430299520] [2023-11-29 06:24:07,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:07,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:08,811 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:24:08,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:08,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430299520] [2023-11-29 06:24:08,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430299520] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:24:08,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965460755] [2023-11-29 06:24:08,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:08,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:08,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:08,814 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:08,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:24:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:09,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 1300 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:24:09,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:09,646 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:24:09,647 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:24:10,087 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:24:10,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965460755] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:24:10,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:24:10,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-29 06:24:10,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441822185] [2023-11-29 06:24:10,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:24:10,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 06:24:10,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:10,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 06:24:10,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-29 06:24:10,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 267 [2023-11-29 06:24:10,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 806 transitions, 5946 flow. Second operand has 23 states, 23 states have (on average 248.2173913043478) internal successors, (5709), 23 states have internal predecessors, (5709), 0 states have call successors, (0), 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 06:24:10,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:24:10,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 267 [2023-11-29 06:24:10,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:24:14,276 INFO L124 PetriNetUnfolderBase]: 2654/9484 cut-off events. [2023-11-29 06:24:14,276 INFO L125 PetriNetUnfolderBase]: For 19996/20170 co-relation queries the response was YES. [2023-11-29 06:24:14,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30253 conditions, 9484 events. 2654/9484 cut-off events. For 19996/20170 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 69132 event pairs, 254 based on Foata normal form. 3/9108 useless extension candidates. Maximal degree in co-relation 29447. Up to 2549 conditions per place. [2023-11-29 06:24:14,338 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 29 selfloop transitions, 34 changer transitions 0/829 dead transitions. [2023-11-29 06:24:14,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 829 transitions, 6206 flow [2023-11-29 06:24:14,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-29 06:24:14,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-29 06:24:14,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7446 transitions. [2023-11-29 06:24:14,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9295880149812734 [2023-11-29 06:24:14,351 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7446 transitions. [2023-11-29 06:24:14,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7446 transitions. [2023-11-29 06:24:14,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:24:14,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7446 transitions. [2023-11-29 06:24:14,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 248.2) internal successors, (7446), 30 states have internal predecessors, (7446), 0 states have call successors, (0), 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 06:24:14,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 267.0) internal successors, (8277), 31 states have internal predecessors, (8277), 0 states have call successors, (0), 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 06:24:14,380 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 267.0) internal successors, (8277), 31 states have internal predecessors, (8277), 0 states have call successors, (0), 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 06:24:14,380 INFO L175 Difference]: Start difference. First operand has 331 places, 806 transitions, 5946 flow. Second operand 30 states and 7446 transitions. [2023-11-29 06:24:14,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 829 transitions, 6206 flow [2023-11-29 06:24:14,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 829 transitions, 5006 flow, removed 600 selfloop flow, removed 0 redundant places. [2023-11-29 06:24:14,468 INFO L231 Difference]: Finished difference. Result has 364 places, 816 transitions, 4912 flow [2023-11-29 06:24:14,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=4746, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=806, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=779, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4912, PETRI_PLACES=364, PETRI_TRANSITIONS=816} [2023-11-29 06:24:14,470 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 100 predicate places. [2023-11-29 06:24:14,470 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 816 transitions, 4912 flow [2023-11-29 06:24:14,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 248.2173913043478) internal successors, (5709), 23 states have internal predecessors, (5709), 0 states have call successors, (0), 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 06:24:14,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:24:14,471 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:24:14,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:24:14,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94c02649-734f-4ba6-9fa4-2a8f1a8dc2ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:14,673 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:24:14,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:14,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1472867401, now seen corresponding path program 2 times [2023-11-29 06:24:14,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:14,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596918022] [2023-11-29 06:24:14,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:14,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:16,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:24:16,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:16,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596918022] [2023-11-29 06:24:16,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596918022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:16,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:16,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:24:16,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201460107] [2023-11-29 06:24:16,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:16,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:24:16,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:16,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:24:16,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:24:18,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:24:18,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 816 transitions, 4912 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:24:18,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:24:18,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:24:18,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:24:25,263 INFO L124 PetriNetUnfolderBase]: 5353/17057 cut-off events. [2023-11-29 06:24:25,264 INFO L125 PetriNetUnfolderBase]: For 35867/36362 co-relation queries the response was YES. [2023-11-29 06:24:25,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58757 conditions, 17057 events. 5353/17057 cut-off events. For 35867/36362 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 138104 event pairs, 1781 based on Foata normal form. 48/16363 useless extension candidates. Maximal degree in co-relation 57789. Up to 5561 conditions per place. [2023-11-29 06:24:25,462 INFO L140 encePairwiseOnDemand]: 221/267 looper letters, 673 selfloop transitions, 206 changer transitions 0/1126 dead transitions. [2023-11-29 06:24:25,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 1126 transitions, 8884 flow [2023-11-29 06:24:25,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:24:25,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 06:24:25,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3227 transitions. [2023-11-29 06:24:25,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7109495483586693 [2023-11-29 06:24:25,471 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3227 transitions. [2023-11-29 06:24:25,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3227 transitions. [2023-11-29 06:24:25,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:24:25,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3227 transitions. [2023-11-29 06:24:25,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 189.8235294117647) internal successors, (3227), 17 states have internal predecessors, (3227), 0 states have call successors, (0), 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 06:24:25,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 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 06:24:25,492 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 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 06:24:25,492 INFO L175 Difference]: Start difference. First operand has 364 places, 816 transitions, 4912 flow. Second operand 17 states and 3227 transitions. [2023-11-29 06:24:25,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 1126 transitions, 8884 flow [2023-11-29 06:24:25,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 1126 transitions, 8836 flow, removed 5 selfloop flow, removed 18 redundant places. [2023-11-29 06:24:25,646 INFO L231 Difference]: Finished difference. Result has 374 places, 918 transitions, 6372 flow [2023-11-29 06:24:25,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=4864, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=816, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=655, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6372, PETRI_PLACES=374, PETRI_TRANSITIONS=918} [2023-11-29 06:24:25,647 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 110 predicate places. [2023-11-29 06:24:25,647 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 918 transitions, 6372 flow [2023-11-29 06:24:25,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:24:25,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:24:25,648 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:24:25,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 06:24:25,649 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:24:25,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:25,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1647115339, now seen corresponding path program 3 times [2023-11-29 06:24:25,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:25,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045732798] [2023-11-29 06:24:25,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:25,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:24:27,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:27,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045732798] [2023-11-29 06:24:27,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045732798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:27,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:27,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:24:27,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938642429] [2023-11-29 06:24:27,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:27,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:24:27,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:27,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:24:27,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:24:28,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:24:28,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 918 transitions, 6372 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:24:28,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:24:28,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:24:28,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:24:37,318 INFO L124 PetriNetUnfolderBase]: 6229/19197 cut-off events. [2023-11-29 06:24:37,318 INFO L125 PetriNetUnfolderBase]: For 58482/58708 co-relation queries the response was YES. [2023-11-29 06:24:37,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72993 conditions, 19197 events. 6229/19197 cut-off events. For 58482/58708 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 157308 event pairs, 1642 based on Foata normal form. 94/18593 useless extension candidates. Maximal degree in co-relation 71945. Up to 4646 conditions per place. [2023-11-29 06:24:37,479 INFO L140 encePairwiseOnDemand]: 225/267 looper letters, 931 selfloop transitions, 171 changer transitions 0/1349 dead transitions. [2023-11-29 06:24:37,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 1349 transitions, 12796 flow [2023-11-29 06:24:37,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 06:24:37,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 06:24:37,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4296 transitions. [2023-11-29 06:24:37,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6995603321934538 [2023-11-29 06:24:37,484 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4296 transitions. [2023-11-29 06:24:37,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4296 transitions. [2023-11-29 06:24:37,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:24:37,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4296 transitions. [2023-11-29 06:24:37,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 186.7826086956522) internal successors, (4296), 23 states have internal predecessors, (4296), 0 states have call successors, (0), 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 06:24:37,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 267.0) internal successors, (6408), 24 states have internal predecessors, (6408), 0 states have call successors, (0), 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 06:24:37,495 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 267.0) internal successors, (6408), 24 states have internal predecessors, (6408), 0 states have call successors, (0), 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 06:24:37,495 INFO L175 Difference]: Start difference. First operand has 374 places, 918 transitions, 6372 flow. Second operand 23 states and 4296 transitions. [2023-11-29 06:24:37,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 1349 transitions, 12796 flow [2023-11-29 06:24:37,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 1349 transitions, 12728 flow, removed 15 selfloop flow, removed 3 redundant places. [2023-11-29 06:24:37,730 INFO L231 Difference]: Finished difference. Result has 410 places, 1035 transitions, 8282 flow [2023-11-29 06:24:37,731 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=6336, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=918, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=788, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=8282, PETRI_PLACES=410, PETRI_TRANSITIONS=1035} [2023-11-29 06:24:37,731 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 146 predicate places. [2023-11-29 06:24:37,731 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 1035 transitions, 8282 flow [2023-11-29 06:24:37,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:24:37,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:24:37,732 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:24:37,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 06:24:37,733 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:24:37,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:37,733 INFO L85 PathProgramCache]: Analyzing trace with hash 2138268133, now seen corresponding path program 1 times [2023-11-29 06:24:37,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:37,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316040288] [2023-11-29 06:24:37,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:37,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:39,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:24:39,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:39,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316040288] [2023-11-29 06:24:39,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316040288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:39,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:39,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:24:39,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905433719] [2023-11-29 06:24:39,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:39,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:24:39,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:39,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:24:39,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:24:40,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:24:40,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 1035 transitions, 8282 flow. Second operand has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 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 06:24:40,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:24:40,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:24:40,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:24:50,561 INFO L124 PetriNetUnfolderBase]: 7008/21339 cut-off events. [2023-11-29 06:24:50,562 INFO L125 PetriNetUnfolderBase]: For 86052/86981 co-relation queries the response was YES. [2023-11-29 06:24:50,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88049 conditions, 21339 events. 7008/21339 cut-off events. For 86052/86981 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 178444 event pairs, 1776 based on Foata normal form. 155/20736 useless extension candidates. Maximal degree in co-relation 86974. Up to 5484 conditions per place. [2023-11-29 06:24:50,807 INFO L140 encePairwiseOnDemand]: 212/267 looper letters, 970 selfloop transitions, 192 changer transitions 0/1458 dead transitions. [2023-11-29 06:24:50,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 1458 transitions, 14814 flow [2023-11-29 06:24:50,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 06:24:50,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 06:24:50,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4260 transitions. [2023-11-29 06:24:50,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6936980947728383 [2023-11-29 06:24:50,813 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4260 transitions. [2023-11-29 06:24:50,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4260 transitions. [2023-11-29 06:24:50,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:24:50,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4260 transitions. [2023-11-29 06:24:50,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 185.2173913043478) internal successors, (4260), 23 states have internal predecessors, (4260), 0 states have call successors, (0), 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 06:24:50,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 267.0) internal successors, (6408), 24 states have internal predecessors, (6408), 0 states have call successors, (0), 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 06:24:50,829 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 267.0) internal successors, (6408), 24 states have internal predecessors, (6408), 0 states have call successors, (0), 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 06:24:50,829 INFO L175 Difference]: Start difference. First operand has 410 places, 1035 transitions, 8282 flow. Second operand 23 states and 4260 transitions. [2023-11-29 06:24:50,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 1458 transitions, 14814 flow [2023-11-29 06:24:51,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1458 transitions, 14554 flow, removed 130 selfloop flow, removed 0 redundant places. [2023-11-29 06:24:51,639 INFO L231 Difference]: Finished difference. Result has 449 places, 1185 transitions, 10254 flow [2023-11-29 06:24:51,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=8052, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1035, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=884, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=10254, PETRI_PLACES=449, PETRI_TRANSITIONS=1185} [2023-11-29 06:24:51,641 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 185 predicate places. [2023-11-29 06:24:51,641 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 1185 transitions, 10254 flow [2023-11-29 06:24:51,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 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 06:24:51,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:24:51,642 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:24:51,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 06:24:51,642 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:24:51,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:51,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1367990859, now seen corresponding path program 4 times [2023-11-29 06:24:51,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:51,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863202377] [2023-11-29 06:24:51,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:51,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:53,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:24:53,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:53,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863202377] [2023-11-29 06:24:53,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863202377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:53,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:53,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:24:53,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444133994] [2023-11-29 06:24:53,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:53,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:24:53,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:53,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:24:53,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:24:55,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:24:55,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 1185 transitions, 10254 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:24:55,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:24:55,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:24:55,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:25:06,169 INFO L124 PetriNetUnfolderBase]: 8044/23525 cut-off events. [2023-11-29 06:25:06,169 INFO L125 PetriNetUnfolderBase]: For 111634/112538 co-relation queries the response was YES. [2023-11-29 06:25:06,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106015 conditions, 23525 events. 8044/23525 cut-off events. For 111634/112538 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 199214 event pairs, 2099 based on Foata normal form. 129/22853 useless extension candidates. Maximal degree in co-relation 105532. Up to 11017 conditions per place. [2023-11-29 06:25:06,465 INFO L140 encePairwiseOnDemand]: 225/267 looper letters, 1009 selfloop transitions, 215 changer transitions 0/1496 dead transitions. [2023-11-29 06:25:06,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 1496 transitions, 16378 flow [2023-11-29 06:25:06,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:25:06,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 06:25:06,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3690 transitions. [2023-11-29 06:25:06,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6910112359550562 [2023-11-29 06:25:06,934 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3690 transitions. [2023-11-29 06:25:06,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3690 transitions. [2023-11-29 06:25:06,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:25:06,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3690 transitions. [2023-11-29 06:25:06,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 184.5) internal successors, (3690), 20 states have internal predecessors, (3690), 0 states have call successors, (0), 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 06:25:06,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 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 06:25:06,948 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 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 06:25:06,948 INFO L175 Difference]: Start difference. First operand has 449 places, 1185 transitions, 10254 flow. Second operand 20 states and 3690 transitions. [2023-11-29 06:25:06,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 1496 transitions, 16378 flow [2023-11-29 06:25:08,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 1496 transitions, 16274 flow, removed 52 selfloop flow, removed 0 redundant places. [2023-11-29 06:25:08,413 INFO L231 Difference]: Finished difference. Result has 483 places, 1296 transitions, 12732 flow [2023-11-29 06:25:08,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=10164, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=999, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=12732, PETRI_PLACES=483, PETRI_TRANSITIONS=1296} [2023-11-29 06:25:08,415 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 219 predicate places. [2023-11-29 06:25:08,415 INFO L495 AbstractCegarLoop]: Abstraction has has 483 places, 1296 transitions, 12732 flow [2023-11-29 06:25:08,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:25:08,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:25:08,416 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:25:08,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 06:25:08,416 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:25:08,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:08,417 INFO L85 PathProgramCache]: Analyzing trace with hash -873320261, now seen corresponding path program 5 times [2023-11-29 06:25:08,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:08,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510830792] [2023-11-29 06:25:08,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:08,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:25:09,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:09,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510830792] [2023-11-29 06:25:09,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510830792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:25:09,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:25:09,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:25:09,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000689074] [2023-11-29 06:25:09,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:25:09,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:25:09,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:09,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:25:09,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:25:11,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:25:11,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 1296 transitions, 12732 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:25:11,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:25:11,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:25:11,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:25:24,122 INFO L124 PetriNetUnfolderBase]: 8893/25747 cut-off events. [2023-11-29 06:25:24,122 INFO L125 PetriNetUnfolderBase]: For 159692/160740 co-relation queries the response was YES. [2023-11-29 06:25:24,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124089 conditions, 25747 events. 8893/25747 cut-off events. For 159692/160740 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 222352 event pairs, 2179 based on Foata normal form. 133/25064 useless extension candidates. Maximal degree in co-relation 123579. Up to 12103 conditions per place. [2023-11-29 06:25:24,442 INFO L140 encePairwiseOnDemand]: 224/267 looper letters, 1087 selfloop transitions, 227 changer transitions 0/1586 dead transitions. [2023-11-29 06:25:24,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 1586 transitions, 18917 flow [2023-11-29 06:25:24,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:25:24,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-29 06:25:24,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2639 transitions. [2023-11-29 06:25:24,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7059925093632958 [2023-11-29 06:25:24,445 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2639 transitions. [2023-11-29 06:25:24,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2639 transitions. [2023-11-29 06:25:24,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:25:24,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2639 transitions. [2023-11-29 06:25:24,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 188.5) internal successors, (2639), 14 states have internal predecessors, (2639), 0 states have call successors, (0), 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 06:25:24,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 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 06:25:24,451 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 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 06:25:24,451 INFO L175 Difference]: Start difference. First operand has 483 places, 1296 transitions, 12732 flow. Second operand 14 states and 2639 transitions. [2023-11-29 06:25:24,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 1586 transitions, 18917 flow [2023-11-29 06:25:26,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 1586 transitions, 18453 flow, removed 232 selfloop flow, removed 0 redundant places. [2023-11-29 06:25:26,477 INFO L231 Difference]: Finished difference. Result has 508 places, 1391 transitions, 14922 flow [2023-11-29 06:25:26,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=12298, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1085, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14922, PETRI_PLACES=508, PETRI_TRANSITIONS=1391} [2023-11-29 06:25:26,478 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 244 predicate places. [2023-11-29 06:25:26,478 INFO L495 AbstractCegarLoop]: Abstraction has has 508 places, 1391 transitions, 14922 flow [2023-11-29 06:25:26,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:25:26,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:25:26,479 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:25:26,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 06:25:26,479 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:25:26,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:26,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1977534663, now seen corresponding path program 6 times [2023-11-29 06:25:26,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:26,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512002901] [2023-11-29 06:25:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:26,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:27,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:25:27,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:27,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512002901] [2023-11-29 06:25:27,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512002901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:25:27,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:25:27,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:25:27,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920046319] [2023-11-29 06:25:27,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:25:27,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:25:27,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:27,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:25:27,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:25:28,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:25:28,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 1391 transitions, 14922 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:25:28,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:25:28,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:25:28,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:25:43,083 INFO L124 PetriNetUnfolderBase]: 8975/25979 cut-off events. [2023-11-29 06:25:43,083 INFO L125 PetriNetUnfolderBase]: For 185164/186020 co-relation queries the response was YES. [2023-11-29 06:25:43,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129784 conditions, 25979 events. 8975/25979 cut-off events. For 185164/186020 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 225441 event pairs, 1855 based on Foata normal form. 162/25373 useless extension candidates. Maximal degree in co-relation 129322. Up to 7173 conditions per place. [2023-11-29 06:25:43,401 INFO L140 encePairwiseOnDemand]: 222/267 looper letters, 1052 selfloop transitions, 243 changer transitions 0/1567 dead transitions. [2023-11-29 06:25:43,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 1567 transitions, 19679 flow [2023-11-29 06:25:43,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:25:43,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-29 06:25:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2655 transitions. [2023-11-29 06:25:43,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7102728731942215 [2023-11-29 06:25:43,404 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2655 transitions. [2023-11-29 06:25:43,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2655 transitions. [2023-11-29 06:25:43,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:25:43,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2655 transitions. [2023-11-29 06:25:43,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 189.64285714285714) internal successors, (2655), 14 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:25:43,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 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 06:25:43,410 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 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 06:25:43,410 INFO L175 Difference]: Start difference. First operand has 508 places, 1391 transitions, 14922 flow. Second operand 14 states and 2655 transitions. [2023-11-29 06:25:43,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 1567 transitions, 19679 flow [2023-11-29 06:25:45,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 1567 transitions, 19223 flow, removed 228 selfloop flow, removed 0 redundant places. [2023-11-29 06:25:45,895 INFO L231 Difference]: Finished difference. Result has 529 places, 1433 transitions, 16291 flow [2023-11-29 06:25:45,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=14490, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=201, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16291, PETRI_PLACES=529, PETRI_TRANSITIONS=1433} [2023-11-29 06:25:45,897 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 265 predicate places. [2023-11-29 06:25:45,897 INFO L495 AbstractCegarLoop]: Abstraction has has 529 places, 1433 transitions, 16291 flow [2023-11-29 06:25:45,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:25:45,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:25:45,898 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:25:45,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 06:25:45,898 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:25:45,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:45,898 INFO L85 PathProgramCache]: Analyzing trace with hash -2136350595, now seen corresponding path program 7 times [2023-11-29 06:25:45,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:45,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663311429] [2023-11-29 06:25:45,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:45,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:47,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:25:47,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:47,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663311429] [2023-11-29 06:25:47,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663311429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:25:47,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:25:47,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:25:47,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268932153] [2023-11-29 06:25:47,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:25:47,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:25:47,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:47,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:25:47,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:25:48,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:25:48,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 1433 transitions, 16291 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:25:48,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:25:48,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:25:48,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:26:03,378 INFO L124 PetriNetUnfolderBase]: 9163/26425 cut-off events. [2023-11-29 06:26:03,378 INFO L125 PetriNetUnfolderBase]: For 209813/210699 co-relation queries the response was YES. [2023-11-29 06:26:03,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136116 conditions, 26425 events. 9163/26425 cut-off events. For 209813/210699 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 229515 event pairs, 1869 based on Foata normal form. 236/25891 useless extension candidates. Maximal degree in co-relation 135627. Up to 5847 conditions per place. [2023-11-29 06:26:03,840 INFO L140 encePairwiseOnDemand]: 222/267 looper letters, 1203 selfloop transitions, 302 changer transitions 0/1777 dead transitions. [2023-11-29 06:26:03,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 1777 transitions, 23875 flow [2023-11-29 06:26:03,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 06:26:03,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 06:26:03,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3915 transitions. [2023-11-29 06:26:03,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6982343499197432 [2023-11-29 06:26:03,844 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3915 transitions. [2023-11-29 06:26:03,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3915 transitions. [2023-11-29 06:26:03,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:26:03,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3915 transitions. [2023-11-29 06:26:03,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 186.42857142857142) internal successors, (3915), 21 states have internal predecessors, (3915), 0 states have call successors, (0), 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 06:26:03,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 267.0) internal successors, (5874), 22 states have internal predecessors, (5874), 0 states have call successors, (0), 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 06:26:03,857 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 267.0) internal successors, (5874), 22 states have internal predecessors, (5874), 0 states have call successors, (0), 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 06:26:03,857 INFO L175 Difference]: Start difference. First operand has 529 places, 1433 transitions, 16291 flow. Second operand 21 states and 3915 transitions. [2023-11-29 06:26:03,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 1777 transitions, 23875 flow [2023-11-29 06:26:06,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 1777 transitions, 23509 flow, removed 142 selfloop flow, removed 4 redundant places. [2023-11-29 06:26:06,537 INFO L231 Difference]: Finished difference. Result has 556 places, 1511 transitions, 18796 flow [2023-11-29 06:26:06,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=16083, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=226, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=18796, PETRI_PLACES=556, PETRI_TRANSITIONS=1511} [2023-11-29 06:26:06,539 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 292 predicate places. [2023-11-29 06:26:06,539 INFO L495 AbstractCegarLoop]: Abstraction has has 556 places, 1511 transitions, 18796 flow [2023-11-29 06:26:06,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:26:06,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:26:06,539 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:26:06,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 06:26:06,540 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:26:06,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:06,540 INFO L85 PathProgramCache]: Analyzing trace with hash -2123594763, now seen corresponding path program 8 times [2023-11-29 06:26:06,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:06,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054504467] [2023-11-29 06:26:06,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:06,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:08,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:26:08,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:08,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054504467] [2023-11-29 06:26:08,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054504467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:26:08,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:26:08,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:26:08,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666893968] [2023-11-29 06:26:08,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:26:08,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:26:08,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:08,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:26:08,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:26:09,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:26:09,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 1511 transitions, 18796 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:26:09,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:26:09,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:26:09,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:26:25,442 INFO L124 PetriNetUnfolderBase]: 9251/26653 cut-off events. [2023-11-29 06:26:25,442 INFO L125 PetriNetUnfolderBase]: For 245402/246392 co-relation queries the response was YES. [2023-11-29 06:26:25,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142862 conditions, 26653 events. 9251/26653 cut-off events. For 245402/246392 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 232300 event pairs, 1907 based on Foata normal form. 222/26111 useless extension candidates. Maximal degree in co-relation 142348. Up to 6628 conditions per place. [2023-11-29 06:26:25,791 INFO L140 encePairwiseOnDemand]: 219/267 looper letters, 968 selfloop transitions, 474 changer transitions 0/1714 dead transitions. [2023-11-29 06:26:25,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 1714 transitions, 24282 flow [2023-11-29 06:26:25,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:26:25,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 06:26:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2385 transitions. [2023-11-29 06:26:25,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2023-11-29 06:26:25,794 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2385 transitions. [2023-11-29 06:26:25,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2385 transitions. [2023-11-29 06:26:25,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:26:25,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2385 transitions. [2023-11-29 06:26:25,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 198.75) internal successors, (2385), 12 states have internal predecessors, (2385), 0 states have call successors, (0), 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 06:26:25,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 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 06:26:25,800 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 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 06:26:25,800 INFO L175 Difference]: Start difference. First operand has 556 places, 1511 transitions, 18796 flow. Second operand 12 states and 2385 transitions. [2023-11-29 06:26:25,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 1714 transitions, 24282 flow [2023-11-29 06:26:29,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 1714 transitions, 23642 flow, removed 247 selfloop flow, removed 8 redundant places. [2023-11-29 06:26:29,369 INFO L231 Difference]: Finished difference. Result has 564 places, 1545 transitions, 20627 flow [2023-11-29 06:26:29,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=18217, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1511, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=440, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1042, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=20627, PETRI_PLACES=564, PETRI_TRANSITIONS=1545} [2023-11-29 06:26:29,370 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 300 predicate places. [2023-11-29 06:26:29,370 INFO L495 AbstractCegarLoop]: Abstraction has has 564 places, 1545 transitions, 20627 flow [2023-11-29 06:26:29,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:26:29,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:26:29,371 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:26:29,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 06:26:29,371 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:26:29,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:29,372 INFO L85 PathProgramCache]: Analyzing trace with hash 968528403, now seen corresponding path program 9 times [2023-11-29 06:26:29,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:29,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149199079] [2023-11-29 06:26:29,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:29,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:30,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:26:30,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:30,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149199079] [2023-11-29 06:26:30,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149199079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:26:30,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:26:30,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:26:30,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873881761] [2023-11-29 06:26:30,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:26:30,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:26:30,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:30,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:26:30,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:26:31,949 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:26:31,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 1545 transitions, 20627 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:26:31,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:26:31,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:26:31,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:26:48,436 INFO L124 PetriNetUnfolderBase]: 9541/27383 cut-off events. [2023-11-29 06:26:48,436 INFO L125 PetriNetUnfolderBase]: For 285916/286924 co-relation queries the response was YES. [2023-11-29 06:26:48,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152902 conditions, 27383 events. 9541/27383 cut-off events. For 285916/286924 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 239961 event pairs, 1907 based on Foata normal form. 280/26895 useless extension candidates. Maximal degree in co-relation 152363. Up to 6744 conditions per place. [2023-11-29 06:26:48,791 INFO L140 encePairwiseOnDemand]: 221/267 looper letters, 1039 selfloop transitions, 495 changer transitions 0/1806 dead transitions. [2023-11-29 06:26:48,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 1806 transitions, 27465 flow [2023-11-29 06:26:48,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:26:48,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 06:26:48,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3049 transitions. [2023-11-29 06:26:48,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7137172284644194 [2023-11-29 06:26:48,794 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3049 transitions. [2023-11-29 06:26:48,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3049 transitions. [2023-11-29 06:26:48,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:26:48,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3049 transitions. [2023-11-29 06:26:48,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 190.5625) internal successors, (3049), 16 states have internal predecessors, (3049), 0 states have call successors, (0), 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 06:26:48,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 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 06:26:48,802 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 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 06:26:48,802 INFO L175 Difference]: Start difference. First operand has 564 places, 1545 transitions, 20627 flow. Second operand 16 states and 3049 transitions. [2023-11-29 06:26:48,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 1806 transitions, 27465 flow [2023-11-29 06:26:52,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 1806 transitions, 27196 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 06:26:52,890 INFO L231 Difference]: Finished difference. Result has 583 places, 1611 transitions, 23569 flow [2023-11-29 06:26:52,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=20371, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=435, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1066, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=23569, PETRI_PLACES=583, PETRI_TRANSITIONS=1611} [2023-11-29 06:26:52,891 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 319 predicate places. [2023-11-29 06:26:52,891 INFO L495 AbstractCegarLoop]: Abstraction has has 583 places, 1611 transitions, 23569 flow [2023-11-29 06:26:52,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:26:52,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:26:52,892 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:26:52,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 06:26:52,892 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:26:52,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:52,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2131518863, now seen corresponding path program 10 times [2023-11-29 06:26:52,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:52,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718955495] [2023-11-29 06:26:52,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:52,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:54,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:26:54,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:54,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718955495] [2023-11-29 06:26:54,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718955495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:26:54,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:26:54,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:26:54,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711373155] [2023-11-29 06:26:54,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:26:54,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:26:54,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:54,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:26:54,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:26:55,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:26:55,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 1611 transitions, 23569 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:26:55,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:26:55,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:26:55,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:27:13,738 INFO L124 PetriNetUnfolderBase]: 9703/27767 cut-off events. [2023-11-29 06:27:13,738 INFO L125 PetriNetUnfolderBase]: For 343148/344210 co-relation queries the response was YES. [2023-11-29 06:27:14,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162164 conditions, 27767 events. 9703/27767 cut-off events. For 343148/344210 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 244052 event pairs, 1901 based on Foata normal form. 312/27311 useless extension candidates. Maximal degree in co-relation 161606. Up to 7154 conditions per place. [2023-11-29 06:27:14,166 INFO L140 encePairwiseOnDemand]: 219/267 looper letters, 1041 selfloop transitions, 541 changer transitions 0/1854 dead transitions. [2023-11-29 06:27:14,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 1854 transitions, 30358 flow [2023-11-29 06:27:14,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:27:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 06:27:14,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2912 transitions. [2023-11-29 06:27:14,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7270911360799002 [2023-11-29 06:27:14,170 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2912 transitions. [2023-11-29 06:27:14,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2912 transitions. [2023-11-29 06:27:14,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:27:14,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2912 transitions. [2023-11-29 06:27:14,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 194.13333333333333) internal successors, (2912), 15 states have internal predecessors, (2912), 0 states have call successors, (0), 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 06:27:14,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 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 06:27:14,177 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 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 06:27:14,177 INFO L175 Difference]: Start difference. First operand has 583 places, 1611 transitions, 23569 flow. Second operand 15 states and 2912 transitions. [2023-11-29 06:27:14,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 1854 transitions, 30358 flow [2023-11-29 06:27:18,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 594 places, 1854 transitions, 29984 flow, removed 148 selfloop flow, removed 3 redundant places. [2023-11-29 06:27:18,459 INFO L231 Difference]: Finished difference. Result has 603 places, 1669 transitions, 26797 flow [2023-11-29 06:27:18,461 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=23205, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=486, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1083, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=26797, PETRI_PLACES=603, PETRI_TRANSITIONS=1669} [2023-11-29 06:27:18,461 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 339 predicate places. [2023-11-29 06:27:18,461 INFO L495 AbstractCegarLoop]: Abstraction has has 603 places, 1669 transitions, 26797 flow [2023-11-29 06:27:18,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:27:18,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:27:18,462 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:27:18,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 06:27:18,462 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:27:18,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:27:18,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1092598389, now seen corresponding path program 11 times [2023-11-29 06:27:18,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:27:18,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552147660] [2023-11-29 06:27:18,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:27:18,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:27:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:27:19,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:27:19,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:27:19,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552147660] [2023-11-29 06:27:19,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552147660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:27:19,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:27:19,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:27:19,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450063016] [2023-11-29 06:27:19,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:27:19,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:27:19,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:27:19,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:27:19,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:27:21,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:27:21,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 1669 transitions, 26797 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:27:21,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:27:21,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:27:21,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:27:41,084 INFO L124 PetriNetUnfolderBase]: 9875/28237 cut-off events. [2023-11-29 06:27:41,084 INFO L125 PetriNetUnfolderBase]: For 401845/402897 co-relation queries the response was YES. [2023-11-29 06:27:41,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172914 conditions, 28237 events. 9875/28237 cut-off events. For 401845/402897 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 249198 event pairs, 1881 based on Foata normal form. 360/27823 useless extension candidates. Maximal degree in co-relation 172325. Up to 7058 conditions per place. [2023-11-29 06:27:41,562 INFO L140 encePairwiseOnDemand]: 220/267 looper letters, 1103 selfloop transitions, 566 changer transitions 0/1941 dead transitions. [2023-11-29 06:27:41,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 618 places, 1941 transitions, 34518 flow [2023-11-29 06:27:41,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:27:41,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 06:27:41,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3072 transitions. [2023-11-29 06:27:41,566 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7191011235955056 [2023-11-29 06:27:41,566 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3072 transitions. [2023-11-29 06:27:41,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3072 transitions. [2023-11-29 06:27:41,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:27:41,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3072 transitions. [2023-11-29 06:27:41,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 192.0) internal successors, (3072), 16 states have internal predecessors, (3072), 0 states have call successors, (0), 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 06:27:41,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 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 06:27:41,573 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 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 06:27:41,573 INFO L175 Difference]: Start difference. First operand has 603 places, 1669 transitions, 26797 flow. Second operand 16 states and 3072 transitions. [2023-11-29 06:27:41,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 618 places, 1941 transitions, 34518 flow [2023-11-29 06:27:47,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 613 places, 1941 transitions, 34049 flow, removed 102 selfloop flow, removed 5 redundant places. [2023-11-29 06:27:47,124 INFO L231 Difference]: Finished difference. Result has 623 places, 1741 transitions, 30221 flow [2023-11-29 06:27:47,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=26332, PETRI_DIFFERENCE_MINUEND_PLACES=598, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1669, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=498, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=30221, PETRI_PLACES=623, PETRI_TRANSITIONS=1741} [2023-11-29 06:27:47,125 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 359 predicate places. [2023-11-29 06:27:47,126 INFO L495 AbstractCegarLoop]: Abstraction has has 623 places, 1741 transitions, 30221 flow [2023-11-29 06:27:47,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:27:47,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:27:47,126 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:27:47,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 06:27:47,127 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:27:47,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:27:47,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1565396163, now seen corresponding path program 12 times [2023-11-29 06:27:47,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:27:47,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314013428] [2023-11-29 06:27:47,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:27:47,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:27:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:27:48,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:27:48,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:27:48,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314013428] [2023-11-29 06:27:48,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314013428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:27:48,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:27:48,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:27:48,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742134467] [2023-11-29 06:27:48,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:27:48,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:27:48,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:27:48,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:27:48,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:27:49,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:27:49,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 623 places, 1741 transitions, 30221 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:27:49,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:27:49,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:27:49,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:28:09,837 INFO L124 PetriNetUnfolderBase]: 9935/28391 cut-off events. [2023-11-29 06:28:09,837 INFO L125 PetriNetUnfolderBase]: For 461603/462793 co-relation queries the response was YES. [2023-11-29 06:28:10,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180361 conditions, 28391 events. 9935/28391 cut-off events. For 461603/462793 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 250921 event pairs, 1907 based on Foata normal form. 378/27997 useless extension candidates. Maximal degree in co-relation 179750. Up to 7618 conditions per place. [2023-11-29 06:28:10,364 INFO L140 encePairwiseOnDemand]: 220/267 looper letters, 1075 selfloop transitions, 578 changer transitions 0/1925 dead transitions. [2023-11-29 06:28:10,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 1925 transitions, 36154 flow [2023-11-29 06:28:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:28:10,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 06:28:10,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2535 transitions. [2023-11-29 06:28:10,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7303370786516854 [2023-11-29 06:28:10,368 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2535 transitions. [2023-11-29 06:28:10,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2535 transitions. [2023-11-29 06:28:10,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:28:10,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2535 transitions. [2023-11-29 06:28:10,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 195.0) internal successors, (2535), 13 states have internal predecessors, (2535), 0 states have call successors, (0), 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 06:28:10,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 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 06:28:10,374 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 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 06:28:10,374 INFO L175 Difference]: Start difference. First operand has 623 places, 1741 transitions, 30221 flow. Second operand 13 states and 2535 transitions. [2023-11-29 06:28:10,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 1925 transitions, 36154 flow [2023-11-29 06:28:16,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 1925 transitions, 35606 flow, removed 182 selfloop flow, removed 4 redundant places. [2023-11-29 06:28:16,086 INFO L231 Difference]: Finished difference. Result has 638 places, 1773 transitions, 32988 flow [2023-11-29 06:28:16,087 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=29681, PETRI_DIFFERENCE_MINUEND_PLACES=619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1741, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=547, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=32988, PETRI_PLACES=638, PETRI_TRANSITIONS=1773} [2023-11-29 06:28:16,088 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 374 predicate places. [2023-11-29 06:28:16,088 INFO L495 AbstractCegarLoop]: Abstraction has has 638 places, 1773 transitions, 32988 flow [2023-11-29 06:28:16,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:28:16,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:28:16,088 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:28:16,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 06:28:16,089 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:28:16,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:28:16,089 INFO L85 PathProgramCache]: Analyzing trace with hash -335927815, now seen corresponding path program 13 times [2023-11-29 06:28:16,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:28:16,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369059937] [2023-11-29 06:28:16,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:16,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:28:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:28:17,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:28:17,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:28:17,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369059937] [2023-11-29 06:28:17,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369059937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:28:17,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:28:17,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:28:17,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320717969] [2023-11-29 06:28:17,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:28:17,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:28:17,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:28:17,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:28:17,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:28:18,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:28:18,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 638 places, 1773 transitions, 32988 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:28:18,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:28:18,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:28:18,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:28:40,079 INFO L124 PetriNetUnfolderBase]: 9973/28519 cut-off events. [2023-11-29 06:28:40,079 INFO L125 PetriNetUnfolderBase]: For 525106/526442 co-relation queries the response was YES. [2023-11-29 06:28:40,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187330 conditions, 28519 events. 9973/28519 cut-off events. For 525106/526442 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 252339 event pairs, 1911 based on Foata normal form. 478/28227 useless extension candidates. Maximal degree in co-relation 186694. Up to 7554 conditions per place. [2023-11-29 06:28:40,761 INFO L140 encePairwiseOnDemand]: 220/267 looper letters, 1107 selfloop transitions, 602 changer transitions 0/1981 dead transitions. [2023-11-29 06:28:40,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 652 places, 1981 transitions, 39592 flow [2023-11-29 06:28:40,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:28:40,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 06:28:40,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2890 transitions. [2023-11-29 06:28:40,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7215980024968789 [2023-11-29 06:28:40,764 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2890 transitions. [2023-11-29 06:28:40,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2890 transitions. [2023-11-29 06:28:40,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:28:40,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2890 transitions. [2023-11-29 06:28:40,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 192.66666666666666) internal successors, (2890), 15 states have internal predecessors, (2890), 0 states have call successors, (0), 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 06:28:40,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 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 06:28:40,772 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 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 06:28:40,772 INFO L175 Difference]: Start difference. First operand has 638 places, 1773 transitions, 32988 flow. Second operand 15 states and 2890 transitions. [2023-11-29 06:28:40,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 652 places, 1981 transitions, 39592 flow [2023-11-29 06:28:47,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 648 places, 1981 transitions, 39224 flow, removed 92 selfloop flow, removed 4 redundant places. [2023-11-29 06:28:47,612 INFO L231 Difference]: Finished difference. Result has 653 places, 1817 transitions, 35968 flow [2023-11-29 06:28:47,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=32654, PETRI_DIFFERENCE_MINUEND_PLACES=634, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1773, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=561, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=35968, PETRI_PLACES=653, PETRI_TRANSITIONS=1817} [2023-11-29 06:28:47,613 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 389 predicate places. [2023-11-29 06:28:47,613 INFO L495 AbstractCegarLoop]: Abstraction has has 653 places, 1817 transitions, 35968 flow [2023-11-29 06:28:47,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:28:47,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:28:47,614 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:28:47,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 06:28:47,614 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:28:47,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:28:47,614 INFO L85 PathProgramCache]: Analyzing trace with hash 933505683, now seen corresponding path program 14 times [2023-11-29 06:28:47,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:28:47,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096663198] [2023-11-29 06:28:47,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:47,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:28:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:28:49,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:28:49,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:28:49,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096663198] [2023-11-29 06:28:49,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096663198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:28:49,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:28:49,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:28:49,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711072213] [2023-11-29 06:28:49,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:28:49,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:28:49,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:28:49,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:28:49,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:28:50,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:28:50,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 653 places, 1817 transitions, 35968 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:28:50,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:28:50,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:28:50,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:29:12,175 INFO L124 PetriNetUnfolderBase]: 10039/28709 cut-off events. [2023-11-29 06:29:12,175 INFO L125 PetriNetUnfolderBase]: For 582426/583774 co-relation queries the response was YES. [2023-11-29 06:29:12,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194508 conditions, 28709 events. 10039/28709 cut-off events. For 582426/583774 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 254661 event pairs, 1933 based on Foata normal form. 456/28397 useless extension candidates. Maximal degree in co-relation 193853. Up to 7762 conditions per place. [2023-11-29 06:29:12,711 INFO L140 encePairwiseOnDemand]: 221/267 looper letters, 1105 selfloop transitions, 617 changer transitions 0/1994 dead transitions. [2023-11-29 06:29:12,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 665 places, 1994 transitions, 42024 flow [2023-11-29 06:29:12,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:29:12,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 06:29:12,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2508 transitions. [2023-11-29 06:29:12,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7225583405358686 [2023-11-29 06:29:12,714 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2508 transitions. [2023-11-29 06:29:12,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2508 transitions. [2023-11-29 06:29:12,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:29:12,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2508 transitions. [2023-11-29 06:29:12,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 192.92307692307693) internal successors, (2508), 13 states have internal predecessors, (2508), 0 states have call successors, (0), 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 06:29:12,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 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 06:29:12,722 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 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 06:29:12,722 INFO L175 Difference]: Start difference. First operand has 653 places, 1817 transitions, 35968 flow. Second operand 13 states and 2508 transitions. [2023-11-29 06:29:12,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 665 places, 1994 transitions, 42024 flow [2023-11-29 06:29:19,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 1994 transitions, 41643 flow, removed 95 selfloop flow, removed 5 redundant places. [2023-11-29 06:29:19,928 INFO L231 Difference]: Finished difference. Result has 667 places, 1849 transitions, 39191 flow [2023-11-29 06:29:19,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=35587, PETRI_DIFFERENCE_MINUEND_PLACES=648, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1817, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=586, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=39191, PETRI_PLACES=667, PETRI_TRANSITIONS=1849} [2023-11-29 06:29:19,931 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 403 predicate places. [2023-11-29 06:29:19,931 INFO L495 AbstractCegarLoop]: Abstraction has has 667 places, 1849 transitions, 39191 flow [2023-11-29 06:29:19,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:29:19,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:29:19,932 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:29:19,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 06:29:19,932 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:29:19,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:19,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1784801223, now seen corresponding path program 15 times [2023-11-29 06:29:19,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:19,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119631736] [2023-11-29 06:29:19,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:19,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:29:21,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:29:21,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:29:21,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119631736] [2023-11-29 06:29:21,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119631736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:29:21,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:29:21,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:29:21,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076582429] [2023-11-29 06:29:21,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:29:21,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:29:21,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:29:21,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:29:21,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:29:22,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:29:22,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 667 places, 1849 transitions, 39191 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:29:22,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:29:22,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:29:22,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:29:45,129 INFO L124 PetriNetUnfolderBase]: 10081/28787 cut-off events. [2023-11-29 06:29:45,129 INFO L125 PetriNetUnfolderBase]: For 657912/659236 co-relation queries the response was YES. [2023-11-29 06:29:45,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202181 conditions, 28787 events. 10081/28787 cut-off events. For 657912/659236 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 255391 event pairs, 1873 based on Foata normal form. 484/28495 useless extension candidates. Maximal degree in co-relation 201503. Up to 7708 conditions per place. [2023-11-29 06:29:45,748 INFO L140 encePairwiseOnDemand]: 221/267 looper letters, 1137 selfloop transitions, 640 changer transitions 0/2049 dead transitions. [2023-11-29 06:29:45,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 681 places, 2049 transitions, 45942 flow [2023-11-29 06:29:45,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:29:45,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 06:29:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2863 transitions. [2023-11-29 06:29:45,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7148564294631711 [2023-11-29 06:29:45,751 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2863 transitions. [2023-11-29 06:29:45,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2863 transitions. [2023-11-29 06:29:45,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:29:45,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2863 transitions. [2023-11-29 06:29:45,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 190.86666666666667) internal successors, (2863), 15 states have internal predecessors, (2863), 0 states have call successors, (0), 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 06:29:45,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 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 06:29:45,756 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 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 06:29:45,756 INFO L175 Difference]: Start difference. First operand has 667 places, 1849 transitions, 39191 flow. Second operand 15 states and 2863 transitions. [2023-11-29 06:29:45,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 681 places, 2049 transitions, 45942 flow [2023-11-29 06:29:53,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 678 places, 2049 transitions, 45748 flow, removed 58 selfloop flow, removed 3 redundant places. [2023-11-29 06:29:53,932 INFO L231 Difference]: Finished difference. Result has 683 places, 1892 transitions, 42607 flow [2023-11-29 06:29:53,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=39031, PETRI_DIFFERENCE_MINUEND_PLACES=664, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1849, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=600, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=42607, PETRI_PLACES=683, PETRI_TRANSITIONS=1892} [2023-11-29 06:29:53,934 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 419 predicate places. [2023-11-29 06:29:53,934 INFO L495 AbstractCegarLoop]: Abstraction has has 683 places, 1892 transitions, 42607 flow [2023-11-29 06:29:53,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:29:53,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:29:53,935 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:29:53,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 06:29:53,935 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:29:53,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:53,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1888189961, now seen corresponding path program 16 times [2023-11-29 06:29:53,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:53,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210967077] [2023-11-29 06:29:53,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:53,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:29:55,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:29:55,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:29:55,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210967077] [2023-11-29 06:29:55,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210967077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:29:55,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:29:55,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:29:55,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026090881] [2023-11-29 06:29:55,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:29:55,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:29:55,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:29:55,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:29:55,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:29:56,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:29:56,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 683 places, 1892 transitions, 42607 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:29:56,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:29:56,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:29:56,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:30:20,883 INFO L124 PetriNetUnfolderBase]: 10437/29675 cut-off events. [2023-11-29 06:30:20,883 INFO L125 PetriNetUnfolderBase]: For 794798/796100 co-relation queries the response was YES. [2023-11-29 06:30:21,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218368 conditions, 29675 events. 10437/29675 cut-off events. For 794798/796100 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 263966 event pairs, 1881 based on Foata normal form. 540/29439 useless extension candidates. Maximal degree in co-relation 217671. Up to 8861 conditions per place. [2023-11-29 06:30:21,421 INFO L140 encePairwiseOnDemand]: 222/267 looper letters, 1378 selfloop transitions, 514 changer transitions 0/2164 dead transitions. [2023-11-29 06:30:21,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 700 places, 2164 transitions, 51456 flow [2023-11-29 06:30:21,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:30:21,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 06:30:21,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3378 transitions. [2023-11-29 06:30:21,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7028714107365793 [2023-11-29 06:30:21,424 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3378 transitions. [2023-11-29 06:30:21,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3378 transitions. [2023-11-29 06:30:21,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:30:21,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3378 transitions. [2023-11-29 06:30:21,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 187.66666666666666) internal successors, (3378), 18 states have internal predecessors, (3378), 0 states have call successors, (0), 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 06:30:21,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 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 06:30:21,429 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 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 06:30:21,430 INFO L175 Difference]: Start difference. First operand has 683 places, 1892 transitions, 42607 flow. Second operand 18 states and 3378 transitions. [2023-11-29 06:30:21,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 700 places, 2164 transitions, 51456 flow [2023-11-29 06:30:31,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 693 places, 2164 transitions, 50629 flow, removed 99 selfloop flow, removed 7 redundant places. [2023-11-29 06:30:31,461 INFO L231 Difference]: Finished difference. Result has 703 places, 1962 transitions, 46114 flow [2023-11-29 06:30:31,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=41808, PETRI_DIFFERENCE_MINUEND_PLACES=676, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1892, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=446, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=46114, PETRI_PLACES=703, PETRI_TRANSITIONS=1962} [2023-11-29 06:30:31,463 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 439 predicate places. [2023-11-29 06:30:31,463 INFO L495 AbstractCegarLoop]: Abstraction has has 703 places, 1962 transitions, 46114 flow [2023-11-29 06:30:31,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:30:31,463 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:30:31,464 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:30:31,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 06:30:31,464 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:30:31,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:30:31,464 INFO L85 PathProgramCache]: Analyzing trace with hash 605148691, now seen corresponding path program 17 times [2023-11-29 06:30:31,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:30:31,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316211522] [2023-11-29 06:30:31,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:30:31,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:30:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:30:32,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:30:32,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:30:32,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316211522] [2023-11-29 06:30:32,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316211522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:30:32,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:30:32,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:30:32,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361908701] [2023-11-29 06:30:32,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:30:32,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:30:32,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:30:32,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:30:32,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:30:34,117 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:30:34,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 703 places, 1962 transitions, 46114 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:30:34,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:30:34,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:30:34,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:00,693 INFO L124 PetriNetUnfolderBase]: 10579/30015 cut-off events. [2023-11-29 06:31:00,693 INFO L125 PetriNetUnfolderBase]: For 900012/901422 co-relation queries the response was YES. [2023-11-29 06:31:01,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229354 conditions, 30015 events. 10579/30015 cut-off events. For 900012/901422 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 267580 event pairs, 1885 based on Foata normal form. 584/29819 useless extension candidates. Maximal degree in co-relation 228635. Up to 9429 conditions per place. [2023-11-29 06:31:01,357 INFO L140 encePairwiseOnDemand]: 222/267 looper letters, 1360 selfloop transitions, 516 changer transitions 0/2148 dead transitions. [2023-11-29 06:31:01,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 718 places, 2148 transitions, 53242 flow [2023-11-29 06:31:01,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:31:01,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 06:31:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3009 transitions. [2023-11-29 06:31:01,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7043539325842697 [2023-11-29 06:31:01,361 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3009 transitions. [2023-11-29 06:31:01,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3009 transitions. [2023-11-29 06:31:01,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:01,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3009 transitions. [2023-11-29 06:31:01,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 188.0625) internal successors, (3009), 16 states have internal predecessors, (3009), 0 states have call successors, (0), 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 06:31:01,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 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 06:31:01,369 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 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 06:31:01,369 INFO L175 Difference]: Start difference. First operand has 703 places, 1962 transitions, 46114 flow. Second operand 16 states and 3009 transitions. [2023-11-29 06:31:01,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 718 places, 2148 transitions, 53242 flow [2023-11-29 06:31:12,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 713 places, 2148 transitions, 52550 flow, removed 273 selfloop flow, removed 5 redundant places. [2023-11-29 06:31:12,952 INFO L231 Difference]: Finished difference. Result has 718 places, 2005 transitions, 49137 flow [2023-11-29 06:31:12,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=45435, PETRI_DIFFERENCE_MINUEND_PLACES=698, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=474, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=49137, PETRI_PLACES=718, PETRI_TRANSITIONS=2005} [2023-11-29 06:31:12,954 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 454 predicate places. [2023-11-29 06:31:12,954 INFO L495 AbstractCegarLoop]: Abstraction has has 718 places, 2005 transitions, 49137 flow [2023-11-29 06:31:12,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:31:12,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:12,955 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:31:12,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 06:31:12,955 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:31:12,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:12,955 INFO L85 PathProgramCache]: Analyzing trace with hash -354015307, now seen corresponding path program 18 times [2023-11-29 06:31:12,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:12,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765422534] [2023-11-29 06:31:12,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:12,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:14,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:31:14,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:14,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765422534] [2023-11-29 06:31:14,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765422534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:14,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:14,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:31:14,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291169495] [2023-11-29 06:31:14,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:14,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:31:14,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:14,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:31:14,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:31:15,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:31:15,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 718 places, 2005 transitions, 49137 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:31:15,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:15,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:31:15,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:42,861 INFO L124 PetriNetUnfolderBase]: 10611/30071 cut-off events. [2023-11-29 06:31:42,861 INFO L125 PetriNetUnfolderBase]: For 961711/963125 co-relation queries the response was YES. [2023-11-29 06:31:43,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235778 conditions, 30071 events. 10611/30071 cut-off events. For 961711/963125 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 268070 event pairs, 1881 based on Foata normal form. 592/29881 useless extension candidates. Maximal degree in co-relation 235040. Up to 9291 conditions per place. [2023-11-29 06:31:43,561 INFO L140 encePairwiseOnDemand]: 222/267 looper letters, 1407 selfloop transitions, 541 changer transitions 0/2220 dead transitions. [2023-11-29 06:31:43,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 734 places, 2220 transitions, 56975 flow [2023-11-29 06:31:43,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:31:43,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 06:31:43,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3194 transitions. [2023-11-29 06:31:43,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7036792244987883 [2023-11-29 06:31:43,564 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3194 transitions. [2023-11-29 06:31:43,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3194 transitions. [2023-11-29 06:31:43,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:43,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3194 transitions. [2023-11-29 06:31:43,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 187.88235294117646) internal successors, (3194), 17 states have internal predecessors, (3194), 0 states have call successors, (0), 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 06:31:43,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 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 06:31:43,569 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 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 06:31:43,569 INFO L175 Difference]: Start difference. First operand has 718 places, 2005 transitions, 49137 flow. Second operand 17 states and 3194 transitions. [2023-11-29 06:31:43,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 734 places, 2220 transitions, 56975 flow [2023-11-29 06:31:55,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 726 places, 2220 transitions, 56536 flow, removed 131 selfloop flow, removed 8 redundant places. [2023-11-29 06:31:55,671 INFO L231 Difference]: Finished difference. Result has 734 places, 2057 transitions, 52834 flow [2023-11-29 06:31:55,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=48708, PETRI_DIFFERENCE_MINUEND_PLACES=710, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2005, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=490, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=52834, PETRI_PLACES=734, PETRI_TRANSITIONS=2057} [2023-11-29 06:31:55,672 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 470 predicate places. [2023-11-29 06:31:55,673 INFO L495 AbstractCegarLoop]: Abstraction has has 734 places, 2057 transitions, 52834 flow [2023-11-29 06:31:55,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:31:55,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:55,673 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:31:55,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 06:31:55,673 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:31:55,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:55,674 INFO L85 PathProgramCache]: Analyzing trace with hash 146776507, now seen corresponding path program 19 times [2023-11-29 06:31:55,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:55,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709852577] [2023-11-29 06:31:55,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:55,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:57,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:31:57,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:57,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709852577] [2023-11-29 06:31:57,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709852577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:57,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:57,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:31:57,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665196031] [2023-11-29 06:31:57,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:57,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:31:57,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:57,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:31:57,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:31:58,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:31:58,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 734 places, 2057 transitions, 52834 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:31:58,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:58,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:31:58,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:26,205 INFO L124 PetriNetUnfolderBase]: 10715/30389 cut-off events. [2023-11-29 06:32:26,205 INFO L125 PetriNetUnfolderBase]: For 1075142/1076684 co-relation queries the response was YES. [2023-11-29 06:32:26,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246506 conditions, 30389 events. 10715/30389 cut-off events. For 1075142/1076684 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 271453 event pairs, 2165 based on Foata normal form. 519/30086 useless extension candidates. Maximal degree in co-relation 244660. Up to 15785 conditions per place. [2023-11-29 06:32:26,924 INFO L140 encePairwiseOnDemand]: 224/267 looper letters, 1423 selfloop transitions, 461 changer transitions 0/2156 dead transitions. [2023-11-29 06:32:26,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 746 places, 2156 transitions, 59151 flow [2023-11-29 06:32:26,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:32:26,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 06:32:26,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2420 transitions. [2023-11-29 06:32:26,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6972054163065399 [2023-11-29 06:32:26,927 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2420 transitions. [2023-11-29 06:32:26,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2420 transitions. [2023-11-29 06:32:26,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:26,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2420 transitions. [2023-11-29 06:32:26,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 186.15384615384616) internal successors, (2420), 13 states have internal predecessors, (2420), 0 states have call successors, (0), 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 06:32:26,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 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 06:32:26,934 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 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 06:32:26,934 INFO L175 Difference]: Start difference. First operand has 734 places, 2057 transitions, 52834 flow. Second operand 13 states and 2420 transitions. [2023-11-29 06:32:26,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 746 places, 2156 transitions, 59151 flow [2023-11-29 06:32:39,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 741 places, 2156 transitions, 58598 flow, removed 230 selfloop flow, removed 5 redundant places. [2023-11-29 06:32:39,980 INFO L231 Difference]: Finished difference. Result has 750 places, 2103 transitions, 56112 flow [2023-11-29 06:32:39,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=52285, PETRI_DIFFERENCE_MINUEND_PLACES=729, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2057, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=418, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=56112, PETRI_PLACES=750, PETRI_TRANSITIONS=2103} [2023-11-29 06:32:39,982 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 486 predicate places. [2023-11-29 06:32:39,982 INFO L495 AbstractCegarLoop]: Abstraction has has 750 places, 2103 transitions, 56112 flow [2023-11-29 06:32:39,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:32:39,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:39,982 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:32:39,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 06:32:39,982 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:32:39,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:39,983 INFO L85 PathProgramCache]: Analyzing trace with hash -893181549, now seen corresponding path program 20 times [2023-11-29 06:32:39,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:39,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695575004] [2023-11-29 06:32:39,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:39,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:41,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:32:41,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:41,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695575004] [2023-11-29 06:32:41,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695575004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:41,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:32:41,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:32:41,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362825390] [2023-11-29 06:32:41,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:41,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:32:41,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:41,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:32:41,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:32:42,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:32:42,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 750 places, 2103 transitions, 56112 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:32:42,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:42,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:32:42,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:33:13,838 INFO L124 PetriNetUnfolderBase]: 11731/32821 cut-off events. [2023-11-29 06:33:13,838 INFO L125 PetriNetUnfolderBase]: For 1344749/1346377 co-relation queries the response was YES. [2023-11-29 06:33:14,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277451 conditions, 32821 events. 11731/32821 cut-off events. For 1344749/1346377 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 298032 event pairs, 2239 based on Foata normal form. 563/32550 useless extension candidates. Maximal degree in co-relation 275143. Up to 15811 conditions per place. [2023-11-29 06:33:14,666 INFO L140 encePairwiseOnDemand]: 224/267 looper letters, 1618 selfloop transitions, 542 changer transitions 0/2432 dead transitions. [2023-11-29 06:33:14,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 769 places, 2432 transitions, 68375 flow [2023-11-29 06:33:14,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:33:14,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 06:33:14,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3684 transitions. [2023-11-29 06:33:14,669 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6898876404494382 [2023-11-29 06:33:14,669 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3684 transitions. [2023-11-29 06:33:14,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3684 transitions. [2023-11-29 06:33:14,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:33:14,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3684 transitions. [2023-11-29 06:33:14,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 184.2) internal successors, (3684), 20 states have internal predecessors, (3684), 0 states have call successors, (0), 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 06:33:14,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 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 06:33:14,676 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 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 06:33:14,676 INFO L175 Difference]: Start difference. First operand has 750 places, 2103 transitions, 56112 flow. Second operand 20 states and 3684 transitions. [2023-11-29 06:33:14,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 769 places, 2432 transitions, 68375 flow [2023-11-29 06:33:31,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 767 places, 2432 transitions, 67731 flow, removed 304 selfloop flow, removed 2 redundant places. [2023-11-29 06:33:31,442 INFO L231 Difference]: Finished difference. Result has 781 places, 2207 transitions, 61916 flow [2023-11-29 06:33:31,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=55806, PETRI_DIFFERENCE_MINUEND_PLACES=748, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=442, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=61916, PETRI_PLACES=781, PETRI_TRANSITIONS=2207} [2023-11-29 06:33:31,444 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 517 predicate places. [2023-11-29 06:33:31,444 INFO L495 AbstractCegarLoop]: Abstraction has has 781 places, 2207 transitions, 61916 flow [2023-11-29 06:33:31,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:33:31,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:33:31,445 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:33:31,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 06:33:31,445 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:33:31,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:33:31,445 INFO L85 PathProgramCache]: Analyzing trace with hash -53995821, now seen corresponding path program 2 times [2023-11-29 06:33:31,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:33:31,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654956976] [2023-11-29 06:33:31,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:31,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:33:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:33:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:33:33,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:33:33,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654956976] [2023-11-29 06:33:33,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654956976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:33:33,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:33:33,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:33:33,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563498838] [2023-11-29 06:33:33,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:33:33,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:33:33,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:33:33,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:33:33,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:33:34,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:33:34,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 781 places, 2207 transitions, 61916 flow. Second operand has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 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 06:33:34,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:33:34,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:33:34,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:34:08,053 INFO L124 PetriNetUnfolderBase]: 11536/33042 cut-off events. [2023-11-29 06:34:08,054 INFO L125 PetriNetUnfolderBase]: For 1402967/1405819 co-relation queries the response was YES. [2023-11-29 06:34:08,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280807 conditions, 33042 events. 11536/33042 cut-off events. For 1402967/1405819 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 304126 event pairs, 2213 based on Foata normal form. 453/32659 useless extension candidates. Maximal degree in co-relation 280000. Up to 14965 conditions per place. [2023-11-29 06:34:08,973 INFO L140 encePairwiseOnDemand]: 214/267 looper letters, 1670 selfloop transitions, 248 changer transitions 0/2490 dead transitions. [2023-11-29 06:34:08,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 800 places, 2490 transitions, 70176 flow [2023-11-29 06:34:08,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:34:08,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 06:34:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3689 transitions. [2023-11-29 06:34:08,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6908239700374532 [2023-11-29 06:34:08,976 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3689 transitions. [2023-11-29 06:34:08,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3689 transitions. [2023-11-29 06:34:08,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:34:08,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3689 transitions. [2023-11-29 06:34:08,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 184.45) internal successors, (3689), 20 states have internal predecessors, (3689), 0 states have call successors, (0), 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 06:34:08,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 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 06:34:08,982 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 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 06:34:08,982 INFO L175 Difference]: Start difference. First operand has 781 places, 2207 transitions, 61916 flow. Second operand 20 states and 3689 transitions. [2023-11-29 06:34:08,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 800 places, 2490 transitions, 70176 flow [2023-11-29 06:34:26,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 797 places, 2490 transitions, 69225 flow, removed 450 selfloop flow, removed 3 redundant places. [2023-11-29 06:34:26,707 INFO L231 Difference]: Finished difference. Result has 808 places, 2319 transitions, 64225 flow [2023-11-29 06:34:26,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=60994, PETRI_DIFFERENCE_MINUEND_PLACES=778, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=64225, PETRI_PLACES=808, PETRI_TRANSITIONS=2319} [2023-11-29 06:34:26,709 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 544 predicate places. [2023-11-29 06:34:26,709 INFO L495 AbstractCegarLoop]: Abstraction has has 808 places, 2319 transitions, 64225 flow [2023-11-29 06:34:26,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 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 06:34:26,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:34:26,710 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:34:26,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 06:34:26,710 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:34:26,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:34:26,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1722913221, now seen corresponding path program 3 times [2023-11-29 06:34:26,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:34:26,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690699683] [2023-11-29 06:34:26,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:26,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:34:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:34:28,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:34:28,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:28,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690699683] [2023-11-29 06:34:28,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690699683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:34:28,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:34:28,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:34:28,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168520215] [2023-11-29 06:34:28,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:34:28,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:34:28,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:28,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:34:28,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:34:29,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:34:29,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 808 places, 2319 transitions, 64225 flow. Second operand has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 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 06:34:29,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:34:29,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:34:29,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:35:05,038 INFO L124 PetriNetUnfolderBase]: 11504/32968 cut-off events. [2023-11-29 06:35:05,038 INFO L125 PetriNetUnfolderBase]: For 1388155/1390895 co-relation queries the response was YES. [2023-11-29 06:35:05,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283956 conditions, 32968 events. 11504/32968 cut-off events. For 1388155/1390895 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 303703 event pairs, 2221 based on Foata normal form. 383/32519 useless extension candidates. Maximal degree in co-relation 283098. Up to 14879 conditions per place. [2023-11-29 06:35:05,986 INFO L140 encePairwiseOnDemand]: 214/267 looper letters, 1709 selfloop transitions, 288 changer transitions 0/2569 dead transitions. [2023-11-29 06:35:05,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 827 places, 2569 transitions, 72645 flow [2023-11-29 06:35:05,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:35:05,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 06:35:05,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3689 transitions. [2023-11-29 06:35:05,989 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6908239700374532 [2023-11-29 06:35:05,989 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3689 transitions. [2023-11-29 06:35:05,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3689 transitions. [2023-11-29 06:35:05,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:35:05,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3689 transitions. [2023-11-29 06:35:05,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 184.45) internal successors, (3689), 20 states have internal predecessors, (3689), 0 states have call successors, (0), 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 06:35:05,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 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 06:35:05,995 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 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 06:35:05,995 INFO L175 Difference]: Start difference. First operand has 808 places, 2319 transitions, 64225 flow. Second operand 20 states and 3689 transitions. [2023-11-29 06:35:05,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 827 places, 2569 transitions, 72645 flow [2023-11-29 06:35:26,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 821 places, 2569 transitions, 72372 flow, removed 100 selfloop flow, removed 6 redundant places. [2023-11-29 06:35:26,182 INFO L231 Difference]: Finished difference. Result has 832 places, 2392 transitions, 66727 flow [2023-11-29 06:35:26,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=63962, PETRI_DIFFERENCE_MINUEND_PLACES=802, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=215, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2045, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=66727, PETRI_PLACES=832, PETRI_TRANSITIONS=2392} [2023-11-29 06:35:26,184 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 568 predicate places. [2023-11-29 06:35:26,184 INFO L495 AbstractCegarLoop]: Abstraction has has 832 places, 2392 transitions, 66727 flow [2023-11-29 06:35:26,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 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 06:35:26,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:35:26,184 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:35:26,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 06:35:26,184 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:35:26,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:35:26,185 INFO L85 PathProgramCache]: Analyzing trace with hash 563836775, now seen corresponding path program 4 times [2023-11-29 06:35:26,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:35:26,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777168733] [2023-11-29 06:35:26,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:35:26,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:35:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:35:27,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:35:27,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:35:27,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777168733] [2023-11-29 06:35:27,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777168733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:35:27,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:35:27,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:35:27,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852960738] [2023-11-29 06:35:27,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:35:27,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:35:27,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:35:27,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:35:27,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:35:28,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:35:28,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 832 places, 2392 transitions, 66727 flow. Second operand has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 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 06:35:28,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:35:28,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:35:28,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:36:04,556 INFO L124 PetriNetUnfolderBase]: 11682/33436 cut-off events. [2023-11-29 06:36:04,556 INFO L125 PetriNetUnfolderBase]: For 1436822/1439634 co-relation queries the response was YES. [2023-11-29 06:36:05,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294703 conditions, 33436 events. 11682/33436 cut-off events. For 1436822/1439634 co-relation queries the response was YES. Maximal size of possible extension queue 432. Compared 308941 event pairs, 2223 based on Foata normal form. 403/33009 useless extension candidates. Maximal degree in co-relation 292250. Up to 15893 conditions per place. [2023-11-29 06:36:05,685 INFO L140 encePairwiseOnDemand]: 214/267 looper letters, 1741 selfloop transitions, 271 changer transitions 0/2584 dead transitions. [2023-11-29 06:36:05,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 849 places, 2584 transitions, 74617 flow [2023-11-29 06:36:05,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:36:05,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 06:36:05,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3328 transitions. [2023-11-29 06:36:05,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6924677486475239 [2023-11-29 06:36:05,690 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3328 transitions. [2023-11-29 06:36:05,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3328 transitions. [2023-11-29 06:36:05,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:36:05,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3328 transitions. [2023-11-29 06:36:05,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 184.88888888888889) internal successors, (3328), 18 states have internal predecessors, (3328), 0 states have call successors, (0), 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 06:36:05,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 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 06:36:05,696 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 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 06:36:05,696 INFO L175 Difference]: Start difference. First operand has 832 places, 2392 transitions, 66727 flow. Second operand 18 states and 3328 transitions. [2023-11-29 06:36:05,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 849 places, 2584 transitions, 74617 flow [2023-11-29 06:36:25,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 844 places, 2584 transitions, 74276 flow, removed 146 selfloop flow, removed 5 redundant places. [2023-11-29 06:36:25,667 INFO L231 Difference]: Finished difference. Result has 855 places, 2464 transitions, 69391 flow [2023-11-29 06:36:25,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=66386, PETRI_DIFFERENCE_MINUEND_PLACES=827, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=69391, PETRI_PLACES=855, PETRI_TRANSITIONS=2464} [2023-11-29 06:36:25,669 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 591 predicate places. [2023-11-29 06:36:25,669 INFO L495 AbstractCegarLoop]: Abstraction has has 855 places, 2464 transitions, 69391 flow [2023-11-29 06:36:25,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.1818181818182) internal successors, (1916), 11 states have internal predecessors, (1916), 0 states have call successors, (0), 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 06:36:25,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:36:25,669 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-29 06:36:25,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 06:36:25,670 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 06:36:25,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:25,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1984522297, now seen corresponding path program 21 times [2023-11-29 06:36:25,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:25,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145368856] [2023-11-29 06:36:25,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:25,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:27,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-11-29 06:36:27,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:36:27,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145368856] [2023-11-29 06:36:27,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145368856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:36:27,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:36:27,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:36:27,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121746910] [2023-11-29 06:36:27,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:36:27,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:36:27,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:36:27,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:36:27,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:36:28,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 267 [2023-11-29 06:36:28,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 855 places, 2464 transitions, 69391 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 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 06:36:28,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:36:28,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 267 [2023-11-29 06:36:28,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand