./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok.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_2dd2713b-c03c-428b-bdae-33a5b19c47bd/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd2713b-c03c-428b-bdae-33a5b19c47bd/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_2dd2713b-c03c-428b-bdae-33a5b19c47bd/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd2713b-c03c-428b-bdae-33a5b19c47bd/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd2713b-c03c-428b-bdae-33a5b19c47bd/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_2dd2713b-c03c-428b-bdae-33a5b19c47bd/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 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:21:18,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:21:18,150 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd2713b-c03c-428b-bdae-33a5b19c47bd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 04:21:18,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:21:18,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:21:18,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:21:18,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:21:18,180 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:21:18,181 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:21:18,181 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:21:18,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:21:18,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:21:18,183 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:21:18,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:21:18,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:21:18,184 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:21:18,185 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:21:18,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:21:18,186 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:21:18,186 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:21:18,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:21:18,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:21:18,188 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 04:21:18,188 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:21:18,188 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:21:18,189 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:21:18,189 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:21:18,190 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:21:18,190 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:21:18,191 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:21:18,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:21:18,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:21:18,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:21:18,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:21:18,193 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:21:18,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:21:18,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:21:18,194 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:21:18,194 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:21:18,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:21:18,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:21:18,195 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_2dd2713b-c03c-428b-bdae-33a5b19c47bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd2713b-c03c-428b-bdae-33a5b19c47bd/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 [2023-11-29 04:21:18,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:21:18,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:21:18,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:21:18,469 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:21:18,470 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:21:18,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd2713b-c03c-428b-bdae-33a5b19c47bd/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread/queue_ok.i [2023-11-29 04:21:21,207 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:21:21,449 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:21:21,450 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd2713b-c03c-428b-bdae-33a5b19c47bd/sv-benchmarks/c/pthread/queue_ok.i [2023-11-29 04:21:21,467 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd2713b-c03c-428b-bdae-33a5b19c47bd/bin/uautomizer-verify-BQ2R08f2Ya/data/61afdbcbe/b145864cd0a141c5a3882fbad8b34ead/FLAG20c2f3a41 [2023-11-29 04:21:21,479 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd2713b-c03c-428b-bdae-33a5b19c47bd/bin/uautomizer-verify-BQ2R08f2Ya/data/61afdbcbe/b145864cd0a141c5a3882fbad8b34ead [2023-11-29 04:21:21,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:21:21,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:21:21,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:21:21,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:21:21,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:21:21,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:21:21" (1/1) ... [2023-11-29 04:21:21,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f28e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:21, skipping insertion in model container [2023-11-29 04:21:21,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:21:21" (1/1) ... [2023-11-29 04:21:21,550 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:21:21,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:21:21,989 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:21:22,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:21:22,104 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:21:22,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:22 WrapperNode [2023-11-29 04:21:22,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:21:22,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:21:22,106 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:21:22,106 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:21:22,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:22" (1/1) ... [2023-11-29 04:21:22,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:22" (1/1) ... [2023-11-29 04:21:22,172 INFO L138 Inliner]: procedures = 275, calls = 61, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 399 [2023-11-29 04:21:22,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:21:22,173 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:21:22,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:21:22,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:21:22,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:22" (1/1) ... [2023-11-29 04:21:22,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:22" (1/1) ... [2023-11-29 04:21:22,190 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:22" (1/1) ... [2023-11-29 04:21:22,190 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:22" (1/1) ... [2023-11-29 04:21:22,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:22" (1/1) ... [2023-11-29 04:21:22,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:22" (1/1) ... [2023-11-29 04:21:22,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:22" (1/1) ... [2023-11-29 04:21:22,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:22" (1/1) ... [2023-11-29 04:21:22,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:21:22,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:21:22,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:21:22,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:21:22,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:22" (1/1) ... [2023-11-29 04:21:22,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:21:22,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd2713b-c03c-428b-bdae-33a5b19c47bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:21:22,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd2713b-c03c-428b-bdae-33a5b19c47bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:21:22,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd2713b-c03c-428b-bdae-33a5b19c47bd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:21:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-29 04:21:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-29 04:21:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-29 04:21:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-29 04:21:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:21:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:21:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 04:21:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 04:21:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 04:21:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 04:21:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:21:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 04:21:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:21:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:21:22,316 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 04:21:22,477 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:21:22,479 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:21:23,064 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:21:23,089 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:21:23,090 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 04:21:23,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:21:23 BoogieIcfgContainer [2023-11-29 04:21:23,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:21:23,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:21:23,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:21:23,097 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:21:23,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:21:21" (1/3) ... [2023-11-29 04:21:23,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5455b920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:21:23, skipping insertion in model container [2023-11-29 04:21:23,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:22" (2/3) ... [2023-11-29 04:21:23,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5455b920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:21:23, skipping insertion in model container [2023-11-29 04:21:23,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:21:23" (3/3) ... [2023-11-29 04:21:23,100 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2023-11-29 04:21:23,106 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 04:21:23,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:21:23,115 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2023-11-29 04:21:23,115 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 04:21:23,315 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 04:21:23,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 448 places, 456 transitions, 926 flow [2023-11-29 04:21:23,518 INFO L124 PetriNetUnfolderBase]: 15/454 cut-off events. [2023-11-29 04:21:23,519 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 04:21:23,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 454 events. 15/454 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 832 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 323. Up to 3 conditions per place. [2023-11-29 04:21:23,529 INFO L82 GeneralOperation]: Start removeDead. Operand has 448 places, 456 transitions, 926 flow [2023-11-29 04:21:23,541 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 436 places, 444 transitions, 897 flow [2023-11-29 04:21:23,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:21:23,555 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;@6799f2b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:21:23,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-11-29 04:21:23,560 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 04:21:23,560 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2023-11-29 04:21:23,560 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:21:23,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:21:23,561 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] [2023-11-29 04:21:23,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:21:23,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:23,567 INFO L85 PathProgramCache]: Analyzing trace with hash -796067664, now seen corresponding path program 1 times [2023-11-29 04:21:23,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:23,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238914293] [2023-11-29 04:21:23,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:23,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:23,802 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 04:21:23,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:23,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238914293] [2023-11-29 04:21:23,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238914293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:23,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:23,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:21:23,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472935239] [2023-11-29 04:21:23,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:23,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:23,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:23,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:23,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:23,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 456 [2023-11-29 04:21:23,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 444 transitions, 897 flow. Second operand has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:23,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:21:23,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 456 [2023-11-29 04:21:23,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:21:24,225 INFO L124 PetriNetUnfolderBase]: 40/985 cut-off events. [2023-11-29 04:21:24,225 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-29 04:21:24,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 985 events. 40/985 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4732 event pairs, 19 based on Foata normal form. 13/885 useless extension candidates. Maximal degree in co-relation 890. Up to 52 conditions per place. [2023-11-29 04:21:24,241 INFO L140 encePairwiseOnDemand]: 448/456 looper letters, 13 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2023-11-29 04:21:24,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 427 transitions, 893 flow [2023-11-29 04:21:24,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:24,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:21:24,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1308 transitions. [2023-11-29 04:21:24,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.956140350877193 [2023-11-29 04:21:24,263 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1308 transitions. [2023-11-29 04:21:24,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1308 transitions. [2023-11-29 04:21:24,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:21:24,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1308 transitions. [2023-11-29 04:21:24,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 436.0) internal successors, (1308), 3 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:24,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:24,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:24,290 INFO L175 Difference]: Start difference. First operand has 436 places, 444 transitions, 897 flow. Second operand 3 states and 1308 transitions. [2023-11-29 04:21:24,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 427 transitions, 893 flow [2023-11-29 04:21:24,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 427 transitions, 888 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 04:21:24,309 INFO L231 Difference]: Finished difference. Result has 424 places, 427 transitions, 862 flow [2023-11-29 04:21:24,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=424, PETRI_TRANSITIONS=427} [2023-11-29 04:21:24,316 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -12 predicate places. [2023-11-29 04:21:24,317 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 427 transitions, 862 flow [2023-11-29 04:21:24,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:24,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:21:24,318 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] [2023-11-29 04:21:24,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:21:24,319 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:21:24,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:24,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1013186647, now seen corresponding path program 1 times [2023-11-29 04:21:24,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:24,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543228074] [2023-11-29 04:21:24,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:24,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:24,392 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 04:21:24,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:24,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543228074] [2023-11-29 04:21:24,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543228074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:24,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:24,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:21:24,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541097170] [2023-11-29 04:21:24,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:24,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:24,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:24,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:24,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:24,425 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 456 [2023-11-29 04:21:24,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 427 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:24,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:21:24,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 456 [2023-11-29 04:21:24,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:21:24,705 INFO L124 PetriNetUnfolderBase]: 43/1121 cut-off events. [2023-11-29 04:21:24,706 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-29 04:21:24,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 1121 events. 43/1121 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5915 event pairs, 19 based on Foata normal form. 0/997 useless extension candidates. Maximal degree in co-relation 1152. Up to 52 conditions per place. [2023-11-29 04:21:24,721 INFO L140 encePairwiseOnDemand]: 453/456 looper letters, 13 selfloop transitions, 2 changer transitions 0/426 dead transitions. [2023-11-29 04:21:24,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 426 transitions, 890 flow [2023-11-29 04:21:24,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:24,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:21:24,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1303 transitions. [2023-11-29 04:21:24,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.952485380116959 [2023-11-29 04:21:24,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1303 transitions. [2023-11-29 04:21:24,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1303 transitions. [2023-11-29 04:21:24,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:21:24,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1303 transitions. [2023-11-29 04:21:24,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 434.3333333333333) internal successors, (1303), 3 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:24,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:24,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:24,738 INFO L175 Difference]: Start difference. First operand has 424 places, 427 transitions, 862 flow. Second operand 3 states and 1303 transitions. [2023-11-29 04:21:24,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 426 transitions, 890 flow [2023-11-29 04:21:24,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 426 transitions, 886 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 04:21:24,749 INFO L231 Difference]: Finished difference. Result has 423 places, 426 transitions, 860 flow [2023-11-29 04:21:24,751 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=860, PETRI_PLACES=423, PETRI_TRANSITIONS=426} [2023-11-29 04:21:24,751 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -13 predicate places. [2023-11-29 04:21:24,752 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 426 transitions, 860 flow [2023-11-29 04:21:24,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:24,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:21:24,753 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] [2023-11-29 04:21:24,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:21:24,754 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:21:24,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:24,754 INFO L85 PathProgramCache]: Analyzing trace with hash -439365894, now seen corresponding path program 1 times [2023-11-29 04:21:24,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:24,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940884068] [2023-11-29 04:21:24,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:24,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:25,197 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 04:21:25,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:25,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940884068] [2023-11-29 04:21:25,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940884068] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:25,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:25,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:21:25,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019939538] [2023-11-29 04:21:25,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:25,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:21:25,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:25,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:21:25,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:21:25,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 456 [2023-11-29 04:21:25,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 426 transitions, 860 flow. Second operand has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:25,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:21:25,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 456 [2023-11-29 04:21:25,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:21:34,193 INFO L124 PetriNetUnfolderBase]: 18045/52322 cut-off events. [2023-11-29 04:21:34,193 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-29 04:21:34,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79475 conditions, 52322 events. 18045/52322 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 573435 event pairs, 16336 based on Foata normal form. 0/47620 useless extension candidates. Maximal degree in co-relation 79435. Up to 27065 conditions per place. [2023-11-29 04:21:34,676 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 108 selfloop transitions, 5 changer transitions 0/425 dead transitions. [2023-11-29 04:21:34,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 425 transitions, 1084 flow [2023-11-29 04:21:34,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:21:34,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:21:34,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2106 transitions. [2023-11-29 04:21:34,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7697368421052632 [2023-11-29 04:21:34,685 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2106 transitions. [2023-11-29 04:21:34,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2106 transitions. [2023-11-29 04:21:34,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:21:34,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2106 transitions. [2023-11-29 04:21:34,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 351.0) internal successors, (2106), 6 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:34,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:34,701 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:34,701 INFO L175 Difference]: Start difference. First operand has 423 places, 426 transitions, 860 flow. Second operand 6 states and 2106 transitions. [2023-11-29 04:21:34,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 425 transitions, 1084 flow [2023-11-29 04:21:34,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 425 transitions, 1080 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 04:21:34,710 INFO L231 Difference]: Finished difference. Result has 425 places, 425 transitions, 864 flow [2023-11-29 04:21:34,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=864, PETRI_PLACES=425, PETRI_TRANSITIONS=425} [2023-11-29 04:21:34,712 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -11 predicate places. [2023-11-29 04:21:34,712 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 425 transitions, 864 flow [2023-11-29 04:21:34,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:34,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:21:34,714 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] [2023-11-29 04:21:34,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:21:34,715 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:21:34,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:34,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1140905659, now seen corresponding path program 1 times [2023-11-29 04:21:34,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:34,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789606198] [2023-11-29 04:21:34,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:34,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:35,103 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 04:21:35,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:35,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789606198] [2023-11-29 04:21:35,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789606198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:35,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:35,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:21:35,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665164902] [2023-11-29 04:21:35,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:35,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:21:35,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:35,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:21:35,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:21:35,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 456 [2023-11-29 04:21:35,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 425 transitions, 864 flow. Second operand has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:35,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:21:35,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 456 [2023-11-29 04:21:35,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:21:43,365 INFO L124 PetriNetUnfolderBase]: 18045/52321 cut-off events. [2023-11-29 04:21:43,366 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-29 04:21:43,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79477 conditions, 52321 events. 18045/52321 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 573314 event pairs, 16336 based on Foata normal form. 0/47620 useless extension candidates. Maximal degree in co-relation 79421. Up to 27065 conditions per place. [2023-11-29 04:21:43,731 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 108 selfloop transitions, 5 changer transitions 0/424 dead transitions. [2023-11-29 04:21:43,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 424 transitions, 1088 flow [2023-11-29 04:21:43,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:21:43,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:21:43,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2106 transitions. [2023-11-29 04:21:43,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7697368421052632 [2023-11-29 04:21:43,738 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2106 transitions. [2023-11-29 04:21:43,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2106 transitions. [2023-11-29 04:21:43,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:21:43,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2106 transitions. [2023-11-29 04:21:43,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 351.0) internal successors, (2106), 6 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:43,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:43,760 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:43,760 INFO L175 Difference]: Start difference. First operand has 425 places, 425 transitions, 864 flow. Second operand 6 states and 2106 transitions. [2023-11-29 04:21:43,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 424 transitions, 1088 flow [2023-11-29 04:21:43,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 424 transitions, 1078 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 04:21:43,772 INFO L231 Difference]: Finished difference. Result has 424 places, 424 transitions, 862 flow [2023-11-29 04:21:43,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=424, PETRI_TRANSITIONS=424} [2023-11-29 04:21:43,774 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -12 predicate places. [2023-11-29 04:21:43,774 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 424 transitions, 862 flow [2023-11-29 04:21:43,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:43,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:21:43,777 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] [2023-11-29 04:21:43,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 04:21:43,777 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:21:43,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:43,778 INFO L85 PathProgramCache]: Analyzing trace with hash -209609778, now seen corresponding path program 1 times [2023-11-29 04:21:43,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:43,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086412227] [2023-11-29 04:21:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:43,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:44,218 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 04:21:44,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:44,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086412227] [2023-11-29 04:21:44,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086412227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:44,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:44,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:21:44,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038465806] [2023-11-29 04:21:44,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:44,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:21:44,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:44,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:21:44,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:21:44,828 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 456 [2023-11-29 04:21:44,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 424 transitions, 862 flow. Second operand has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:44,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:21:44,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 456 [2023-11-29 04:21:44,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:21:52,261 INFO L124 PetriNetUnfolderBase]: 18045/52320 cut-off events. [2023-11-29 04:21:52,261 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-29 04:21:52,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79476 conditions, 52320 events. 18045/52320 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 573328 event pairs, 16336 based on Foata normal form. 0/47620 useless extension candidates. Maximal degree in co-relation 79412. Up to 27065 conditions per place. [2023-11-29 04:21:52,541 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 108 selfloop transitions, 5 changer transitions 0/423 dead transitions. [2023-11-29 04:21:52,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 423 transitions, 1086 flow [2023-11-29 04:21:52,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:21:52,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:21:52,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2106 transitions. [2023-11-29 04:21:52,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7697368421052632 [2023-11-29 04:21:52,548 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2106 transitions. [2023-11-29 04:21:52,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2106 transitions. [2023-11-29 04:21:52,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:21:52,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2106 transitions. [2023-11-29 04:21:52,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 351.0) internal successors, (2106), 6 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:52,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:52,565 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:52,565 INFO L175 Difference]: Start difference. First operand has 424 places, 424 transitions, 862 flow. Second operand 6 states and 2106 transitions. [2023-11-29 04:21:52,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 423 transitions, 1086 flow [2023-11-29 04:21:52,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 423 transitions, 1076 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 04:21:52,575 INFO L231 Difference]: Finished difference. Result has 423 places, 423 transitions, 860 flow [2023-11-29 04:21:52,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=860, PETRI_PLACES=423, PETRI_TRANSITIONS=423} [2023-11-29 04:21:52,577 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -13 predicate places. [2023-11-29 04:21:52,577 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 423 transitions, 860 flow [2023-11-29 04:21:52,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:52,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:21:52,578 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] [2023-11-29 04:21:52,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 04:21:52,579 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:21:52,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:52,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1452068456, now seen corresponding path program 1 times [2023-11-29 04:21:52,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:52,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899203835] [2023-11-29 04:21:52,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:52,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:52,865 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 04:21:52,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:52,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899203835] [2023-11-29 04:21:52,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899203835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:52,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:52,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:21:52,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512789419] [2023-11-29 04:21:52,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:52,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:21:52,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:52,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:21:52,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:21:53,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 456 [2023-11-29 04:21:53,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 423 transitions, 860 flow. Second operand has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:53,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:21:53,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 456 [2023-11-29 04:21:53,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:21:54,885 INFO L124 PetriNetUnfolderBase]: 502/4952 cut-off events. [2023-11-29 04:21:54,885 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-29 04:21:54,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5822 conditions, 4952 events. 502/4952 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 40178 event pairs, 344 based on Foata normal form. 0/4365 useless extension candidates. Maximal degree in co-relation 5740. Up to 811 conditions per place. [2023-11-29 04:21:54,910 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 54 selfloop transitions, 5 changer transitions 0/422 dead transitions. [2023-11-29 04:21:54,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 422 transitions, 976 flow [2023-11-29 04:21:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:21:54,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:21:54,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2376 transitions. [2023-11-29 04:21:54,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.868421052631579 [2023-11-29 04:21:54,918 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2376 transitions. [2023-11-29 04:21:54,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2376 transitions. [2023-11-29 04:21:54,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:21:54,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2376 transitions. [2023-11-29 04:21:54,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 396.0) internal successors, (2376), 6 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:54,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:54,932 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:54,932 INFO L175 Difference]: Start difference. First operand has 423 places, 423 transitions, 860 flow. Second operand 6 states and 2376 transitions. [2023-11-29 04:21:54,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 422 transitions, 976 flow [2023-11-29 04:21:54,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 422 transitions, 966 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 04:21:54,941 INFO L231 Difference]: Finished difference. Result has 422 places, 422 transitions, 858 flow [2023-11-29 04:21:54,942 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=858, PETRI_PLACES=422, PETRI_TRANSITIONS=422} [2023-11-29 04:21:54,942 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -14 predicate places. [2023-11-29 04:21:54,943 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 422 transitions, 858 flow [2023-11-29 04:21:54,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:54,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:21:54,945 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 04:21:54,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 04:21:54,945 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:21:54,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:54,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1867753033, now seen corresponding path program 1 times [2023-11-29 04:21:54,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:54,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615806745] [2023-11-29 04:21:54,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:54,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:55,293 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 04:21:55,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:55,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615806745] [2023-11-29 04:21:55,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615806745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:55,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:55,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:21:55,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93410301] [2023-11-29 04:21:55,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:55,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:21:55,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:55,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:21:55,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:21:56,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 456 [2023-11-29 04:21:56,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 422 transitions, 858 flow. Second operand has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:56,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:21:56,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 456 [2023-11-29 04:21:56,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:21:57,170 INFO L124 PetriNetUnfolderBase]: 502/4951 cut-off events. [2023-11-29 04:21:57,170 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-29 04:21:57,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5821 conditions, 4951 events. 502/4951 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 40187 event pairs, 344 based on Foata normal form. 0/4365 useless extension candidates. Maximal degree in co-relation 5702. Up to 811 conditions per place. [2023-11-29 04:21:57,202 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 54 selfloop transitions, 5 changer transitions 0/421 dead transitions. [2023-11-29 04:21:57,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 421 transitions, 974 flow [2023-11-29 04:21:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:21:57,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:21:57,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2376 transitions. [2023-11-29 04:21:57,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.868421052631579 [2023-11-29 04:21:57,208 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2376 transitions. [2023-11-29 04:21:57,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2376 transitions. [2023-11-29 04:21:57,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:21:57,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2376 transitions. [2023-11-29 04:21:57,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 396.0) internal successors, (2376), 6 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,219 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,220 INFO L175 Difference]: Start difference. First operand has 422 places, 422 transitions, 858 flow. Second operand 6 states and 2376 transitions. [2023-11-29 04:21:57,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 421 transitions, 974 flow [2023-11-29 04:21:57,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 421 transitions, 964 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 04:21:57,229 INFO L231 Difference]: Finished difference. Result has 421 places, 421 transitions, 856 flow [2023-11-29 04:21:57,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=856, PETRI_PLACES=421, PETRI_TRANSITIONS=421} [2023-11-29 04:21:57,231 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -15 predicate places. [2023-11-29 04:21:57,231 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 421 transitions, 856 flow [2023-11-29 04:21:57,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:21:57,232 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, 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 04:21:57,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 04:21:57,233 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:21:57,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:57,233 INFO L85 PathProgramCache]: Analyzing trace with hash -447143693, now seen corresponding path program 1 times [2023-11-29 04:21:57,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:57,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118096018] [2023-11-29 04:21:57,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:57,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:57,320 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 04:21:57,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:57,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118096018] [2023-11-29 04:21:57,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118096018] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:57,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:57,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:21:57,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659429925] [2023-11-29 04:21:57,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:57,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:57,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:57,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:57,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:57,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 456 [2023-11-29 04:21:57,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 421 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 434.6666666666667) internal successors, (1304), 3 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:21:57,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 456 [2023-11-29 04:21:57,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:21:57,505 INFO L124 PetriNetUnfolderBase]: 53/1061 cut-off events. [2023-11-29 04:21:57,505 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-29 04:21:57,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1171 conditions, 1061 events. 53/1061 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5511 event pairs, 14 based on Foata normal form. 0/949 useless extension candidates. Maximal degree in co-relation 1071. Up to 56 conditions per place. [2023-11-29 04:21:57,512 INFO L140 encePairwiseOnDemand]: 451/456 looper letters, 17 selfloop transitions, 4 changer transitions 0/429 dead transitions. [2023-11-29 04:21:57,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 429 transitions, 917 flow [2023-11-29 04:21:57,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:57,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:21:57,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1321 transitions. [2023-11-29 04:21:57,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9656432748538012 [2023-11-29 04:21:57,517 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1321 transitions. [2023-11-29 04:21:57,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1321 transitions. [2023-11-29 04:21:57,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:21:57,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1321 transitions. [2023-11-29 04:21:57,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.3333333333333) internal successors, (1321), 3 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,525 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,525 INFO L175 Difference]: Start difference. First operand has 421 places, 421 transitions, 856 flow. Second operand 3 states and 1321 transitions. [2023-11-29 04:21:57,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 429 transitions, 917 flow [2023-11-29 04:21:57,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 429 transitions, 907 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 04:21:57,535 INFO L231 Difference]: Finished difference. Result has 420 places, 424 transitions, 876 flow [2023-11-29 04:21:57,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=876, PETRI_PLACES=420, PETRI_TRANSITIONS=424} [2023-11-29 04:21:57,537 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -16 predicate places. [2023-11-29 04:21:57,537 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 424 transitions, 876 flow [2023-11-29 04:21:57,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 434.6666666666667) internal successors, (1304), 3 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:21:57,538 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, 1, 1, 1, 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 04:21:57,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 04:21:57,539 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:21:57,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:57,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1957841084, now seen corresponding path program 1 times [2023-11-29 04:21:57,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:57,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855634316] [2023-11-29 04:21:57,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:57,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:57,612 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 04:21:57,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:57,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855634316] [2023-11-29 04:21:57,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855634316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:57,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:57,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:21:57,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715021145] [2023-11-29 04:21:57,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:57,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:57,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:57,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:57,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:57,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 456 [2023-11-29 04:21:57,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 424 transitions, 876 flow. Second operand has 3 states, 3 states have (on average 435.0) internal successors, (1305), 3 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:21:57,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 456 [2023-11-29 04:21:57,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:21:57,947 INFO L124 PetriNetUnfolderBase]: 96/2176 cut-off events. [2023-11-29 04:21:57,947 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2023-11-29 04:21:57,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2354 conditions, 2176 events. 96/2176 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 14932 event pairs, 22 based on Foata normal form. 0/1942 useless extension candidates. Maximal degree in co-relation 2082. Up to 85 conditions per place. [2023-11-29 04:21:57,958 INFO L140 encePairwiseOnDemand]: 451/456 looper letters, 16 selfloop transitions, 4 changer transitions 0/431 dead transitions. [2023-11-29 04:21:57,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 431 transitions, 931 flow [2023-11-29 04:21:57,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:57,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:21:57,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1320 transitions. [2023-11-29 04:21:57,961 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9649122807017544 [2023-11-29 04:21:57,961 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1320 transitions. [2023-11-29 04:21:57,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1320 transitions. [2023-11-29 04:21:57,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:21:57,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1320 transitions. [2023-11-29 04:21:57,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.0) internal successors, (1320), 3 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,969 INFO L175 Difference]: Start difference. First operand has 420 places, 424 transitions, 876 flow. Second operand 3 states and 1320 transitions. [2023-11-29 04:21:57,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 431 transitions, 931 flow [2023-11-29 04:21:57,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 431 transitions, 923 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 04:21:57,979 INFO L231 Difference]: Finished difference. Result has 422 places, 427 transitions, 898 flow [2023-11-29 04:21:57,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=898, PETRI_PLACES=422, PETRI_TRANSITIONS=427} [2023-11-29 04:21:57,981 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -14 predicate places. [2023-11-29 04:21:57,981 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 427 transitions, 898 flow [2023-11-29 04:21:57,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.0) internal successors, (1305), 3 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:57,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:21:57,982 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, 1, 1, 1, 1, 1, 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 04:21:57,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 04:21:57,982 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:21:57,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:57,983 INFO L85 PathProgramCache]: Analyzing trace with hash -954384772, now seen corresponding path program 1 times [2023-11-29 04:21:57,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:57,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319237633] [2023-11-29 04:21:57,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:57,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:58,061 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 04:21:58,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:58,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319237633] [2023-11-29 04:21:58,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319237633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:58,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:58,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:58,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067045078] [2023-11-29 04:21:58,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:58,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:58,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:58,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:58,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:58,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 456 [2023-11-29 04:21:58,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 427 transitions, 898 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:58,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:21:58,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 456 [2023-11-29 04:21:58,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:21:58,404 INFO L124 PetriNetUnfolderBase]: 81/2242 cut-off events. [2023-11-29 04:21:58,404 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-29 04:21:58,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2431 conditions, 2242 events. 81/2242 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 13395 event pairs, 33 based on Foata normal form. 7/2022 useless extension candidates. Maximal degree in co-relation 2041. Up to 103 conditions per place. [2023-11-29 04:21:58,420 INFO L140 encePairwiseOnDemand]: 453/456 looper letters, 13 selfloop transitions, 2 changer transitions 0/431 dead transitions. [2023-11-29 04:21:58,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 431 transitions, 938 flow [2023-11-29 04:21:58,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:58,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:21:58,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1321 transitions. [2023-11-29 04:21:58,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9656432748538012 [2023-11-29 04:21:58,423 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1321 transitions. [2023-11-29 04:21:58,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1321 transitions. [2023-11-29 04:21:58,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:21:58,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1321 transitions. [2023-11-29 04:21:58,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.3333333333333) internal successors, (1321), 3 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:58,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:58,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:58,429 INFO L175 Difference]: Start difference. First operand has 422 places, 427 transitions, 898 flow. Second operand 3 states and 1321 transitions. [2023-11-29 04:21:58,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 431 transitions, 938 flow [2023-11-29 04:21:58,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 431 transitions, 930 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 04:21:58,436 INFO L231 Difference]: Finished difference. Result has 423 places, 428 transitions, 902 flow [2023-11-29 04:21:58,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=423, PETRI_TRANSITIONS=428} [2023-11-29 04:21:58,438 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -13 predicate places. [2023-11-29 04:21:58,438 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 428 transitions, 902 flow [2023-11-29 04:21:58,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:21:58,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:21:58,439 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, 1, 1, 1, 1, 1, 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 04:21:58,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 04:21:58,439 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:21:58,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:58,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1243556329, now seen corresponding path program 1 times [2023-11-29 04:21:58,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:58,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640533482] [2023-11-29 04:21:58,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:58,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:59,090 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 04:21:59,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:59,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640533482] [2023-11-29 04:21:59,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640533482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:59,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:59,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 04:21:59,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226489424] [2023-11-29 04:21:59,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:59,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:21:59,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:59,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:21:59,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:22:00,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 456 [2023-11-29 04:22:00,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 428 transitions, 902 flow. Second operand has 12 states, 12 states have (on average 407.1666666666667) internal successors, (4886), 12 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:00,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:22:00,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 456 [2023-11-29 04:22:00,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:22:01,301 INFO L124 PetriNetUnfolderBase]: 221/4094 cut-off events. [2023-11-29 04:22:01,301 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-11-29 04:22:01,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4573 conditions, 4094 events. 221/4094 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 31029 event pairs, 134 based on Foata normal form. 0/3620 useless extension candidates. Maximal degree in co-relation 2734. Up to 318 conditions per place. [2023-11-29 04:22:01,321 INFO L140 encePairwiseOnDemand]: 439/456 looper letters, 22 selfloop transitions, 16 changer transitions 0/424 dead transitions. [2023-11-29 04:22:01,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 424 transitions, 970 flow [2023-11-29 04:22:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:22:01,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 04:22:01,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4899 transitions. [2023-11-29 04:22:01,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8952850877192983 [2023-11-29 04:22:01,330 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4899 transitions. [2023-11-29 04:22:01,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4899 transitions. [2023-11-29 04:22:01,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:22:01,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4899 transitions. [2023-11-29 04:22:01,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 408.25) internal successors, (4899), 12 states have internal predecessors, (4899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:01,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:01,352 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:01,352 INFO L175 Difference]: Start difference. First operand has 423 places, 428 transitions, 902 flow. Second operand 12 states and 4899 transitions. [2023-11-29 04:22:01,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 424 transitions, 970 flow [2023-11-29 04:22:01,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 424 transitions, 968 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 04:22:01,362 INFO L231 Difference]: Finished difference. Result has 430 places, 424 transitions, 924 flow [2023-11-29 04:22:01,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=924, PETRI_PLACES=430, PETRI_TRANSITIONS=424} [2023-11-29 04:22:01,364 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -6 predicate places. [2023-11-29 04:22:01,364 INFO L495 AbstractCegarLoop]: Abstraction has has 430 places, 424 transitions, 924 flow [2023-11-29 04:22:01,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 407.1666666666667) internal successors, (4886), 12 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:01,366 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:22:01,367 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, 1, 1, 1, 1, 1, 1, 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 04:22:01,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 04:22:01,367 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:22:01,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:01,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1638990207, now seen corresponding path program 1 times [2023-11-29 04:22:01,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:22:01,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338804012] [2023-11-29 04:22:01,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:01,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:22:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:22:01,858 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 04:22:01,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:01,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338804012] [2023-11-29 04:22:01,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338804012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:22:01,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:22:01,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:22:01,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467091013] [2023-11-29 04:22:01,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:22:01,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:22:01,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:01,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:22:01,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:22:02,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 456 [2023-11-29 04:22:02,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 424 transitions, 924 flow. Second operand has 6 states, 6 states have (on average 388.5) internal successors, (2331), 6 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:02,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:22:02,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 456 [2023-11-29 04:22:02,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:22:18,039 INFO L124 PetriNetUnfolderBase]: 18793/76338 cut-off events. [2023-11-29 04:22:18,039 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-11-29 04:22:18,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105105 conditions, 76338 events. 18793/76338 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 973047 event pairs, 5181 based on Foata normal form. 0/67686 useless extension candidates. Maximal degree in co-relation 104974. Up to 21135 conditions per place. [2023-11-29 04:22:18,528 INFO L140 encePairwiseOnDemand]: 418/456 looper letters, 75 selfloop transitions, 133 changer transitions 0/573 dead transitions. [2023-11-29 04:22:18,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 573 transitions, 1639 flow [2023-11-29 04:22:18,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:22:18,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:22:18,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2519 transitions. [2023-11-29 04:22:18,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9206871345029239 [2023-11-29 04:22:18,534 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2519 transitions. [2023-11-29 04:22:18,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2519 transitions. [2023-11-29 04:22:18,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:22:18,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2519 transitions. [2023-11-29 04:22:18,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 419.8333333333333) internal successors, (2519), 6 states have internal predecessors, (2519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:18,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:18,546 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:18,546 INFO L175 Difference]: Start difference. First operand has 430 places, 424 transitions, 924 flow. Second operand 6 states and 2519 transitions. [2023-11-29 04:22:18,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 573 transitions, 1639 flow [2023-11-29 04:22:18,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 573 transitions, 1607 flow, removed 0 selfloop flow, removed 11 redundant places. [2023-11-29 04:22:18,561 INFO L231 Difference]: Finished difference. Result has 429 places, 556 transitions, 1762 flow [2023-11-29 04:22:18,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1762, PETRI_PLACES=429, PETRI_TRANSITIONS=556} [2023-11-29 04:22:18,562 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -7 predicate places. [2023-11-29 04:22:18,562 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 556 transitions, 1762 flow [2023-11-29 04:22:18,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 388.5) internal successors, (2331), 6 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:18,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:22:18,564 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:18,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 04:22:18,564 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:22:18,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:18,565 INFO L85 PathProgramCache]: Analyzing trace with hash -353022824, now seen corresponding path program 1 times [2023-11-29 04:22:18,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:22:18,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490774208] [2023-11-29 04:22:18,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:18,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:22:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:22:18,636 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 04:22:18,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:18,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490774208] [2023-11-29 04:22:18,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490774208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:22:18,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:22:18,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:22:18,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556539046] [2023-11-29 04:22:18,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:22:18,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:22:18,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:18,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:22:18,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:22:18,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 456 [2023-11-29 04:22:18,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 556 transitions, 1762 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:18,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:22:18,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 456 [2023-11-29 04:22:18,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:22:35,407 INFO L124 PetriNetUnfolderBase]: 21158/96727 cut-off events. [2023-11-29 04:22:35,407 INFO L125 PetriNetUnfolderBase]: For 11755/20973 co-relation queries the response was YES. [2023-11-29 04:22:35,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149542 conditions, 96727 events. 21158/96727 cut-off events. For 11755/20973 co-relation queries the response was YES. Maximal size of possible extension queue 1009. Compared 1350204 event pairs, 6220 based on Foata normal form. 26/87166 useless extension candidates. Maximal degree in co-relation 149129. Up to 24557 conditions per place. [2023-11-29 04:22:36,071 INFO L140 encePairwiseOnDemand]: 453/456 looper letters, 13 selfloop transitions, 2 changer transitions 0/560 dead transitions. [2023-11-29 04:22:36,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 560 transitions, 1801 flow [2023-11-29 04:22:36,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:22:36,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:22:36,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1321 transitions. [2023-11-29 04:22:36,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9656432748538012 [2023-11-29 04:22:36,075 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1321 transitions. [2023-11-29 04:22:36,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1321 transitions. [2023-11-29 04:22:36,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:22:36,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1321 transitions. [2023-11-29 04:22:36,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.3333333333333) internal successors, (1321), 3 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:36,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:36,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:36,082 INFO L175 Difference]: Start difference. First operand has 429 places, 556 transitions, 1762 flow. Second operand 3 states and 1321 transitions. [2023-11-29 04:22:36,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 560 transitions, 1801 flow [2023-11-29 04:22:37,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 560 transitions, 1801 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 04:22:37,081 INFO L231 Difference]: Finished difference. Result has 432 places, 557 transitions, 1774 flow [2023-11-29 04:22:37,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=1762, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=554, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1774, PETRI_PLACES=432, PETRI_TRANSITIONS=557} [2023-11-29 04:22:37,082 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -4 predicate places. [2023-11-29 04:22:37,082 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 557 transitions, 1774 flow [2023-11-29 04:22:37,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:37,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:22:37,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:37,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 04:22:37,083 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:22:37,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:37,084 INFO L85 PathProgramCache]: Analyzing trace with hash -698335854, now seen corresponding path program 1 times [2023-11-29 04:22:37,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:22:37,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386781986] [2023-11-29 04:22:37,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:37,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:22:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:22:37,441 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 04:22:37,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:37,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386781986] [2023-11-29 04:22:37,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386781986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:22:37,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:22:37,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:22:37,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930035864] [2023-11-29 04:22:37,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:22:37,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:22:37,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:37,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:22:37,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:22:38,371 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:22:38,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 557 transitions, 1774 flow. Second operand has 6 states, 6 states have (on average 379.5) internal successors, (2277), 6 states have internal predecessors, (2277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:22:38,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:22:38,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:22:38,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:23:13,784 INFO L124 PetriNetUnfolderBase]: 50860/190477 cut-off events. [2023-11-29 04:23:13,784 INFO L125 PetriNetUnfolderBase]: For 78481/144526 co-relation queries the response was YES. [2023-11-29 04:23:14,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355449 conditions, 190477 events. 50860/190477 cut-off events. For 78481/144526 co-relation queries the response was YES. Maximal size of possible extension queue 2114. Compared 2821080 event pairs, 9525 based on Foata normal form. 864/172244 useless extension candidates. Maximal degree in co-relation 354668. Up to 54491 conditions per place. [2023-11-29 04:23:15,616 INFO L140 encePairwiseOnDemand]: 423/456 looper letters, 195 selfloop transitions, 270 changer transitions 0/840 dead transitions. [2023-11-29 04:23:15,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 840 transitions, 4196 flow [2023-11-29 04:23:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:23:15,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:23:15,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2408 transitions. [2023-11-29 04:23:15,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8801169590643275 [2023-11-29 04:23:15,622 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2408 transitions. [2023-11-29 04:23:15,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2408 transitions. [2023-11-29 04:23:15,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:23:15,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2408 transitions. [2023-11-29 04:23:15,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 401.3333333333333) internal successors, (2408), 6 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:15,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:15,631 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:15,631 INFO L175 Difference]: Start difference. First operand has 432 places, 557 transitions, 1774 flow. Second operand 6 states and 2408 transitions. [2023-11-29 04:23:15,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 840 transitions, 4196 flow [2023-11-29 04:23:19,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 840 transitions, 4194 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 04:23:19,161 INFO L231 Difference]: Finished difference. Result has 441 places, 825 transitions, 4488 flow [2023-11-29 04:23:19,162 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=1772, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4488, PETRI_PLACES=441, PETRI_TRANSITIONS=825} [2023-11-29 04:23:19,163 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 5 predicate places. [2023-11-29 04:23:19,163 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 825 transitions, 4488 flow [2023-11-29 04:23:19,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 379.5) internal successors, (2277), 6 states have internal predecessors, (2277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:19,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:23:19,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:19,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 04:23:19,164 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:23:19,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:19,164 INFO L85 PathProgramCache]: Analyzing trace with hash 322074334, now seen corresponding path program 1 times [2023-11-29 04:23:19,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:19,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704984400] [2023-11-29 04:23:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:19,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:19,327 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 04:23:19,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:19,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704984400] [2023-11-29 04:23:19,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704984400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:19,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:19,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:23:19,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414273328] [2023-11-29 04:23:19,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:19,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:23:19,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:19,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:23:19,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:23:19,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 456 [2023-11-29 04:23:19,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 825 transitions, 4488 flow. Second operand has 3 states, 3 states have (on average 436.0) internal successors, (1308), 3 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:19,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:23:19,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 456 [2023-11-29 04:23:19,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:23:21,765 INFO L124 PetriNetUnfolderBase]: 1838/15364 cut-off events. [2023-11-29 04:23:21,765 INFO L125 PetriNetUnfolderBase]: For 3304/3614 co-relation queries the response was YES. [2023-11-29 04:23:21,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24404 conditions, 15364 events. 1838/15364 cut-off events. For 3304/3614 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 161505 event pairs, 61 based on Foata normal form. 4/14058 useless extension candidates. Maximal degree in co-relation 23926. Up to 2454 conditions per place. [2023-11-29 04:23:21,875 INFO L140 encePairwiseOnDemand]: 452/456 looper letters, 14 selfloop transitions, 3 changer transitions 0/555 dead transitions. [2023-11-29 04:23:21,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 555 transitions, 2023 flow [2023-11-29 04:23:21,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:23:21,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:23:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1320 transitions. [2023-11-29 04:23:21,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9649122807017544 [2023-11-29 04:23:21,879 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1320 transitions. [2023-11-29 04:23:21,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1320 transitions. [2023-11-29 04:23:21,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:23:21,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1320 transitions. [2023-11-29 04:23:21,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.0) internal successors, (1320), 3 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:21,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:21,883 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:21,883 INFO L175 Difference]: Start difference. First operand has 441 places, 825 transitions, 4488 flow. Second operand 3 states and 1320 transitions. [2023-11-29 04:23:21,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 555 transitions, 2023 flow [2023-11-29 04:23:21,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 555 transitions, 1789 flow, removed 69 selfloop flow, removed 12 redundant places. [2023-11-29 04:23:21,939 INFO L231 Difference]: Finished difference. Result has 428 places, 550 transitions, 1753 flow [2023-11-29 04:23:21,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=1742, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1753, PETRI_PLACES=428, PETRI_TRANSITIONS=550} [2023-11-29 04:23:21,940 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -8 predicate places. [2023-11-29 04:23:21,940 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 550 transitions, 1753 flow [2023-11-29 04:23:21,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.0) internal successors, (1308), 3 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:21,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:23:21,941 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:21,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 04:23:21,941 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:23:21,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:21,942 INFO L85 PathProgramCache]: Analyzing trace with hash 826659390, now seen corresponding path program 1 times [2023-11-29 04:23:21,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:21,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469278183] [2023-11-29 04:23:21,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:21,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:22,456 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 04:23:22,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:22,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469278183] [2023-11-29 04:23:22,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469278183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:22,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:22,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:23:22,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578321509] [2023-11-29 04:23:22,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:22,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:23:22,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:22,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:23:22,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:23:23,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 456 [2023-11-29 04:23:23,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 550 transitions, 1753 flow. Second operand has 6 states, 6 states have (on average 327.8333333333333) internal successors, (1967), 6 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:23,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:23:23,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 456 [2023-11-29 04:23:23,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:23:29,569 INFO L124 PetriNetUnfolderBase]: 10929/33453 cut-off events. [2023-11-29 04:23:29,569 INFO L125 PetriNetUnfolderBase]: For 9495/9597 co-relation queries the response was YES. [2023-11-29 04:23:29,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65074 conditions, 33453 events. 10929/33453 cut-off events. For 9495/9597 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 343302 event pairs, 6818 based on Foata normal form. 0/30989 useless extension candidates. Maximal degree in co-relation 64207. Up to 18160 conditions per place. [2023-11-29 04:23:29,753 INFO L140 encePairwiseOnDemand]: 445/456 looper letters, 262 selfloop transitions, 32 changer transitions 0/589 dead transitions. [2023-11-29 04:23:29,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 589 transitions, 2497 flow [2023-11-29 04:23:29,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:23:29,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:23:29,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2090 transitions. [2023-11-29 04:23:29,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7638888888888888 [2023-11-29 04:23:29,758 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2090 transitions. [2023-11-29 04:23:29,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2090 transitions. [2023-11-29 04:23:29,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:23:29,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2090 transitions. [2023-11-29 04:23:29,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 348.3333333333333) internal successors, (2090), 6 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:29,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:29,767 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:29,767 INFO L175 Difference]: Start difference. First operand has 428 places, 550 transitions, 1753 flow. Second operand 6 states and 2090 transitions. [2023-11-29 04:23:29,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 589 transitions, 2497 flow [2023-11-29 04:23:29,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 589 transitions, 2491 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 04:23:29,879 INFO L231 Difference]: Finished difference. Result has 436 places, 577 transitions, 2031 flow [2023-11-29 04:23:29,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=1747, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2031, PETRI_PLACES=436, PETRI_TRANSITIONS=577} [2023-11-29 04:23:29,880 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 0 predicate places. [2023-11-29 04:23:29,880 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 577 transitions, 2031 flow [2023-11-29 04:23:29,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 327.8333333333333) internal successors, (1967), 6 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:29,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:23:29,881 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:29,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 04:23:29,881 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:23:29,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:29,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1637805963, now seen corresponding path program 1 times [2023-11-29 04:23:29,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:29,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896900827] [2023-11-29 04:23:29,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:29,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:30,016 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 04:23:30,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:30,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896900827] [2023-11-29 04:23:30,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896900827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:30,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:30,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:23:30,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758173992] [2023-11-29 04:23:30,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:30,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:23:30,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:30,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:23:30,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:23:30,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 456 [2023-11-29 04:23:30,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 577 transitions, 2031 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:30,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:23:30,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 456 [2023-11-29 04:23:30,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:23:32,054 INFO L124 PetriNetUnfolderBase]: 1741/11097 cut-off events. [2023-11-29 04:23:32,054 INFO L125 PetriNetUnfolderBase]: For 2699/3025 co-relation queries the response was YES. [2023-11-29 04:23:32,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19177 conditions, 11097 events. 1741/11097 cut-off events. For 2699/3025 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 102079 event pairs, 50 based on Foata normal form. 4/10301 useless extension candidates. Maximal degree in co-relation 18749. Up to 1976 conditions per place. [2023-11-29 04:23:32,122 INFO L140 encePairwiseOnDemand]: 452/456 looper letters, 13 selfloop transitions, 3 changer transitions 0/581 dead transitions. [2023-11-29 04:23:32,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 581 transitions, 2074 flow [2023-11-29 04:23:32,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:23:32,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:23:32,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1319 transitions. [2023-11-29 04:23:32,127 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9641812865497076 [2023-11-29 04:23:32,127 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1319 transitions. [2023-11-29 04:23:32,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1319 transitions. [2023-11-29 04:23:32,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:23:32,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1319 transitions. [2023-11-29 04:23:32,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:32,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:32,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:32,131 INFO L175 Difference]: Start difference. First operand has 436 places, 577 transitions, 2031 flow. Second operand 3 states and 1319 transitions. [2023-11-29 04:23:32,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 581 transitions, 2074 flow [2023-11-29 04:23:32,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 581 transitions, 2056 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-29 04:23:32,171 INFO L231 Difference]: Finished difference. Result has 438 places, 576 transitions, 2017 flow [2023-11-29 04:23:32,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=2011, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2017, PETRI_PLACES=438, PETRI_TRANSITIONS=576} [2023-11-29 04:23:32,172 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 2 predicate places. [2023-11-29 04:23:32,172 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 576 transitions, 2017 flow [2023-11-29 04:23:32,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:32,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:23:32,173 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:32,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 04:23:32,173 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:23:32,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:32,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1076419005, now seen corresponding path program 1 times [2023-11-29 04:23:32,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:32,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106042027] [2023-11-29 04:23:32,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:32,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:32,681 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 04:23:32,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:32,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106042027] [2023-11-29 04:23:32,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106042027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:32,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:32,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:23:32,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485458542] [2023-11-29 04:23:32,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:32,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:23:32,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:32,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:23:32,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:23:33,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 456 [2023-11-29 04:23:33,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 576 transitions, 2017 flow. Second operand has 6 states, 6 states have (on average 397.1666666666667) internal successors, (2383), 6 states have internal predecessors, (2383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:33,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:23:33,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 456 [2023-11-29 04:23:33,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:23:36,497 INFO L124 PetriNetUnfolderBase]: 3117/15713 cut-off events. [2023-11-29 04:23:36,497 INFO L125 PetriNetUnfolderBase]: For 5685/6139 co-relation queries the response was YES. [2023-11-29 04:23:36,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28900 conditions, 15713 events. 3117/15713 cut-off events. For 5685/6139 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 152292 event pairs, 845 based on Foata normal form. 0/14558 useless extension candidates. Maximal degree in co-relation 28256. Up to 3147 conditions per place. [2023-11-29 04:23:36,595 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 157 selfloop transitions, 9 changer transitions 0/587 dead transitions. [2023-11-29 04:23:36,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 587 transitions, 2379 flow [2023-11-29 04:23:36,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:23:36,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:23:36,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2423 transitions. [2023-11-29 04:23:36,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8855994152046783 [2023-11-29 04:23:36,603 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2423 transitions. [2023-11-29 04:23:36,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2423 transitions. [2023-11-29 04:23:36,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:23:36,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2423 transitions. [2023-11-29 04:23:36,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 403.8333333333333) internal successors, (2423), 6 states have internal predecessors, (2423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:36,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:36,613 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:36,613 INFO L175 Difference]: Start difference. First operand has 438 places, 576 transitions, 2017 flow. Second operand 6 states and 2423 transitions. [2023-11-29 04:23:36,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 587 transitions, 2379 flow [2023-11-29 04:23:36,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 587 transitions, 2373 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 04:23:36,681 INFO L231 Difference]: Finished difference. Result has 440 places, 575 transitions, 2027 flow [2023-11-29 04:23:36,682 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=2009, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2027, PETRI_PLACES=440, PETRI_TRANSITIONS=575} [2023-11-29 04:23:36,683 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 4 predicate places. [2023-11-29 04:23:36,683 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 575 transitions, 2027 flow [2023-11-29 04:23:36,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.1666666666667) internal successors, (2383), 6 states have internal predecessors, (2383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:36,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:23:36,683 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:36,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 04:23:36,684 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:23:36,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:36,684 INFO L85 PathProgramCache]: Analyzing trace with hash -212873431, now seen corresponding path program 1 times [2023-11-29 04:23:36,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:36,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80365337] [2023-11-29 04:23:36,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:36,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:37,635 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 04:23:37,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:37,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80365337] [2023-11-29 04:23:37,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80365337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:37,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:37,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:23:37,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268392169] [2023-11-29 04:23:37,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:37,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:23:37,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:37,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:23:37,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:23:40,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:23:40,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 575 transitions, 2027 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:40,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:23:40,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:23:40,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:23:44,815 INFO L124 PetriNetUnfolderBase]: 5582/20726 cut-off events. [2023-11-29 04:23:44,815 INFO L125 PetriNetUnfolderBase]: For 7771/10057 co-relation queries the response was YES. [2023-11-29 04:23:44,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42528 conditions, 20726 events. 5582/20726 cut-off events. For 7771/10057 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 201232 event pairs, 1436 based on Foata normal form. 1052/20370 useless extension candidates. Maximal degree in co-relation 41832. Up to 5528 conditions per place. [2023-11-29 04:23:44,962 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 154 selfloop transitions, 151 changer transitions 0/657 dead transitions. [2023-11-29 04:23:44,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 657 transitions, 2946 flow [2023-11-29 04:23:44,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:23:44,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 04:23:44,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4400 transitions. [2023-11-29 04:23:44,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8771929824561403 [2023-11-29 04:23:44,975 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4400 transitions. [2023-11-29 04:23:44,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4400 transitions. [2023-11-29 04:23:44,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:23:44,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4400 transitions. [2023-11-29 04:23:44,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 400.0) internal successors, (4400), 11 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:44,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 456.0) internal successors, (5472), 12 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:44,991 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 456.0) internal successors, (5472), 12 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:44,992 INFO L175 Difference]: Start difference. First operand has 440 places, 575 transitions, 2027 flow. Second operand 11 states and 4400 transitions. [2023-11-29 04:23:44,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 657 transitions, 2946 flow [2023-11-29 04:23:45,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 657 transitions, 2924 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 04:23:45,063 INFO L231 Difference]: Finished difference. Result has 449 places, 597 transitions, 2677 flow [2023-11-29 04:23:45,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=2009, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2677, PETRI_PLACES=449, PETRI_TRANSITIONS=597} [2023-11-29 04:23:45,064 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 13 predicate places. [2023-11-29 04:23:45,064 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 597 transitions, 2677 flow [2023-11-29 04:23:45,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:45,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:23:45,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:45,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 04:23:45,065 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:23:45,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:45,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1721868759, now seen corresponding path program 2 times [2023-11-29 04:23:45,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:45,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455496943] [2023-11-29 04:23:45,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:45,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:45,830 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 04:23:45,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:45,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455496943] [2023-11-29 04:23:45,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455496943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:45,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:45,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:23:45,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627905192] [2023-11-29 04:23:45,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:45,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:23:45,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:45,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:23:45,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:23:48,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:23:48,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 597 transitions, 2677 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:48,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:23:48,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:23:48,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:23:53,382 INFO L124 PetriNetUnfolderBase]: 6554/24031 cut-off events. [2023-11-29 04:23:53,383 INFO L125 PetriNetUnfolderBase]: For 20633/23040 co-relation queries the response was YES. [2023-11-29 04:23:53,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54629 conditions, 24031 events. 6554/24031 cut-off events. For 20633/23040 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 237819 event pairs, 1138 based on Foata normal form. 956/23468 useless extension candidates. Maximal degree in co-relation 53926. Up to 3833 conditions per place. [2023-11-29 04:23:53,651 INFO L140 encePairwiseOnDemand]: 427/456 looper letters, 343 selfloop transitions, 74 changer transitions 0/769 dead transitions. [2023-11-29 04:23:53,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 769 transitions, 4554 flow [2023-11-29 04:23:53,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:23:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 04:23:53,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5084 transitions. [2023-11-29 04:23:53,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8576248313090419 [2023-11-29 04:23:53,658 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5084 transitions. [2023-11-29 04:23:53,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5084 transitions. [2023-11-29 04:23:53,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:23:53,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5084 transitions. [2023-11-29 04:23:53,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 391.0769230769231) internal successors, (5084), 13 states have internal predecessors, (5084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:53,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:53,672 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:53,673 INFO L175 Difference]: Start difference. First operand has 449 places, 597 transitions, 2677 flow. Second operand 13 states and 5084 transitions. [2023-11-29 04:23:53,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 769 transitions, 4554 flow [2023-11-29 04:23:53,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 769 transitions, 4418 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-29 04:23:53,777 INFO L231 Difference]: Finished difference. Result has 464 places, 652 transitions, 3356 flow [2023-11-29 04:23:53,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=2561, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3356, PETRI_PLACES=464, PETRI_TRANSITIONS=652} [2023-11-29 04:23:53,778 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 28 predicate places. [2023-11-29 04:23:53,778 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 652 transitions, 3356 flow [2023-11-29 04:23:53,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:53,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:23:53,779 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:53,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 04:23:53,779 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:23:53,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:53,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1885951473, now seen corresponding path program 3 times [2023-11-29 04:23:53,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:53,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841000322] [2023-11-29 04:23:53,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:53,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:54,608 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 04:23:54,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:54,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841000322] [2023-11-29 04:23:54,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841000322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:54,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:54,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:23:54,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190945141] [2023-11-29 04:23:54,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:54,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:23:54,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:54,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:23:54,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:23:57,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:23:57,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 652 transitions, 3356 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:23:57,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:23:57,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:23:57,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:24:03,242 INFO L124 PetriNetUnfolderBase]: 6972/25362 cut-off events. [2023-11-29 04:24:03,242 INFO L125 PetriNetUnfolderBase]: For 45306/48288 co-relation queries the response was YES. [2023-11-29 04:24:03,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65078 conditions, 25362 events. 6972/25362 cut-off events. For 45306/48288 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 254310 event pairs, 1832 based on Foata normal form. 1548/25386 useless extension candidates. Maximal degree in co-relation 64347. Up to 6836 conditions per place. [2023-11-29 04:24:03,404 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 203 selfloop transitions, 191 changer transitions 0/746 dead transitions. [2023-11-29 04:24:03,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 746 transitions, 4757 flow [2023-11-29 04:24:03,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:24:03,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 04:24:03,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4783 transitions. [2023-11-29 04:24:03,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8740862573099415 [2023-11-29 04:24:03,408 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4783 transitions. [2023-11-29 04:24:03,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4783 transitions. [2023-11-29 04:24:03,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:24:03,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4783 transitions. [2023-11-29 04:24:03,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 398.5833333333333) internal successors, (4783), 12 states have internal predecessors, (4783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:03,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:03,417 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:03,417 INFO L175 Difference]: Start difference. First operand has 464 places, 652 transitions, 3356 flow. Second operand 12 states and 4783 transitions. [2023-11-29 04:24:03,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 746 transitions, 4757 flow [2023-11-29 04:24:03,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 746 transitions, 4740 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-11-29 04:24:03,725 INFO L231 Difference]: Finished difference. Result has 477 places, 683 transitions, 4414 flow [2023-11-29 04:24:03,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=3345, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=652, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4414, PETRI_PLACES=477, PETRI_TRANSITIONS=683} [2023-11-29 04:24:03,726 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 41 predicate places. [2023-11-29 04:24:03,726 INFO L495 AbstractCegarLoop]: Abstraction has has 477 places, 683 transitions, 4414 flow [2023-11-29 04:24:03,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:03,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:24:03,727 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:03,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 04:24:03,727 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:24:03,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:03,727 INFO L85 PathProgramCache]: Analyzing trace with hash -431390723, now seen corresponding path program 4 times [2023-11-29 04:24:03,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:03,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127912598] [2023-11-29 04:24:03,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:03,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:04,393 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 04:24:04,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:04,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127912598] [2023-11-29 04:24:04,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127912598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:04,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:04,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:24:04,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127429872] [2023-11-29 04:24:04,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:04,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:24:04,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:04,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:24:04,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:24:06,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:24:06,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 683 transitions, 4414 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:06,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:24:06,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:24:06,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:24:13,815 INFO L124 PetriNetUnfolderBase]: 9190/32459 cut-off events. [2023-11-29 04:24:13,815 INFO L125 PetriNetUnfolderBase]: For 93882/97215 co-relation queries the response was YES. [2023-11-29 04:24:13,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91729 conditions, 32459 events. 9190/32459 cut-off events. For 93882/97215 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 341130 event pairs, 1221 based on Foata normal form. 1057/31713 useless extension candidates. Maximal degree in co-relation 90982. Up to 5269 conditions per place. [2023-11-29 04:24:14,051 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 347 selfloop transitions, 210 changer transitions 0/909 dead transitions. [2023-11-29 04:24:14,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 909 transitions, 7611 flow [2023-11-29 04:24:14,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:24:14,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 04:24:14,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5123 transitions. [2023-11-29 04:24:14,056 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8642037786774629 [2023-11-29 04:24:14,056 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5123 transitions. [2023-11-29 04:24:14,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5123 transitions. [2023-11-29 04:24:14,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:24:14,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5123 transitions. [2023-11-29 04:24:14,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 394.0769230769231) internal successors, (5123), 13 states have internal predecessors, (5123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:14,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:14,066 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:14,066 INFO L175 Difference]: Start difference. First operand has 477 places, 683 transitions, 4414 flow. Second operand 13 states and 5123 transitions. [2023-11-29 04:24:14,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 909 transitions, 7611 flow [2023-11-29 04:24:14,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 909 transitions, 7402 flow, removed 29 selfloop flow, removed 6 redundant places. [2023-11-29 04:24:14,604 INFO L231 Difference]: Finished difference. Result has 492 places, 772 transitions, 6360 flow [2023-11-29 04:24:14,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=4268, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6360, PETRI_PLACES=492, PETRI_TRANSITIONS=772} [2023-11-29 04:24:14,605 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 56 predicate places. [2023-11-29 04:24:14,605 INFO L495 AbstractCegarLoop]: Abstraction has has 492 places, 772 transitions, 6360 flow [2023-11-29 04:24:14,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:14,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:24:14,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:14,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 04:24:14,606 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:24:14,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:14,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1113923609, now seen corresponding path program 5 times [2023-11-29 04:24:14,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:14,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125305914] [2023-11-29 04:24:14,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:14,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:15,198 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 04:24:15,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:15,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125305914] [2023-11-29 04:24:15,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125305914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:15,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:15,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:24:15,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044259147] [2023-11-29 04:24:15,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:15,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:24:15,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:15,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:24:15,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:24:18,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:24:18,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 772 transitions, 6360 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:18,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:24:18,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:24:18,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:24:26,882 INFO L124 PetriNetUnfolderBase]: 9786/34454 cut-off events. [2023-11-29 04:24:26,882 INFO L125 PetriNetUnfolderBase]: For 142912/146516 co-relation queries the response was YES. [2023-11-29 04:24:27,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105725 conditions, 34454 events. 9786/34454 cut-off events. For 142912/146516 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 368200 event pairs, 1723 based on Foata normal form. 1793/34389 useless extension candidates. Maximal degree in co-relation 104960. Up to 9566 conditions per place. [2023-11-29 04:24:27,174 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 282 selfloop transitions, 263 changer transitions 0/897 dead transitions. [2023-11-29 04:24:27,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 897 transitions, 8519 flow [2023-11-29 04:24:27,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:24:27,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 04:24:27,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5178 transitions. [2023-11-29 04:24:27,179 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8734817813765182 [2023-11-29 04:24:27,179 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5178 transitions. [2023-11-29 04:24:27,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5178 transitions. [2023-11-29 04:24:27,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:24:27,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5178 transitions. [2023-11-29 04:24:27,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 398.3076923076923) internal successors, (5178), 13 states have internal predecessors, (5178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:27,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:27,192 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:27,192 INFO L175 Difference]: Start difference. First operand has 492 places, 772 transitions, 6360 flow. Second operand 13 states and 5178 transitions. [2023-11-29 04:24:27,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 897 transitions, 8519 flow [2023-11-29 04:24:28,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 897 transitions, 8458 flow, removed 28 selfloop flow, removed 3 redundant places. [2023-11-29 04:24:28,166 INFO L231 Difference]: Finished difference. Result has 507 places, 812 transitions, 7906 flow [2023-11-29 04:24:28,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=6299, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=772, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7906, PETRI_PLACES=507, PETRI_TRANSITIONS=812} [2023-11-29 04:24:28,167 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 71 predicate places. [2023-11-29 04:24:28,167 INFO L495 AbstractCegarLoop]: Abstraction has has 507 places, 812 transitions, 7906 flow [2023-11-29 04:24:28,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:28,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:24:28,168 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:28,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 04:24:28,168 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:24:28,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:28,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1832087005, now seen corresponding path program 6 times [2023-11-29 04:24:28,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:28,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130382656] [2023-11-29 04:24:28,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:28,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:28,863 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 04:24:28,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:28,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130382656] [2023-11-29 04:24:28,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130382656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:28,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:28,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:24:28,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737845762] [2023-11-29 04:24:28,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:28,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:24:28,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:28,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:24:28,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:24:32,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:24:32,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 812 transitions, 7906 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:32,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:24:32,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:24:32,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:24:42,963 INFO L124 PetriNetUnfolderBase]: 11353/40136 cut-off events. [2023-11-29 04:24:42,963 INFO L125 PetriNetUnfolderBase]: For 235209/239524 co-relation queries the response was YES. [2023-11-29 04:24:43,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130524 conditions, 40136 events. 11353/40136 cut-off events. For 235209/239524 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 443737 event pairs, 1973 based on Foata normal form. 1510/39559 useless extension candidates. Maximal degree in co-relation 129744. Up to 8859 conditions per place. [2023-11-29 04:24:43,382 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 362 selfloop transitions, 298 changer transitions 0/1012 dead transitions. [2023-11-29 04:24:43,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 1012 transitions, 11325 flow [2023-11-29 04:24:43,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:24:43,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 04:24:43,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5146 transitions. [2023-11-29 04:24:43,386 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8680836707152496 [2023-11-29 04:24:43,387 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5146 transitions. [2023-11-29 04:24:43,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5146 transitions. [2023-11-29 04:24:43,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:24:43,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5146 transitions. [2023-11-29 04:24:43,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 395.84615384615387) internal successors, (5146), 13 states have internal predecessors, (5146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:43,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:43,397 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:43,397 INFO L175 Difference]: Start difference. First operand has 507 places, 812 transitions, 7906 flow. Second operand 13 states and 5146 transitions. [2023-11-29 04:24:43,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 1012 transitions, 11325 flow [2023-11-29 04:24:45,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 1012 transitions, 11181 flow, removed 22 selfloop flow, removed 5 redundant places. [2023-11-29 04:24:45,139 INFO L231 Difference]: Finished difference. Result has 522 places, 878 transitions, 10017 flow [2023-11-29 04:24:45,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=7772, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=812, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=238, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10017, PETRI_PLACES=522, PETRI_TRANSITIONS=878} [2023-11-29 04:24:45,140 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 86 predicate places. [2023-11-29 04:24:45,140 INFO L495 AbstractCegarLoop]: Abstraction has has 522 places, 878 transitions, 10017 flow [2023-11-29 04:24:45,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:45,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:24:45,141 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:45,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 04:24:45,141 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:24:45,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:45,141 INFO L85 PathProgramCache]: Analyzing trace with hash 857557413, now seen corresponding path program 7 times [2023-11-29 04:24:45,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:45,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943616452] [2023-11-29 04:24:45,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:45,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:45,932 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 04:24:45,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:45,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943616452] [2023-11-29 04:24:45,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943616452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:45,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:45,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:24:45,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218083247] [2023-11-29 04:24:45,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:45,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:24:45,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:45,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:24:45,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:24:49,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:24:49,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 878 transitions, 10017 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:49,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:24:49,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:24:49,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:25:00,588 INFO L124 PetriNetUnfolderBase]: 11887/41947 cut-off events. [2023-11-29 04:25:00,588 INFO L125 PetriNetUnfolderBase]: For 334596/339773 co-relation queries the response was YES. [2023-11-29 04:25:00,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147880 conditions, 41947 events. 11887/41947 cut-off events. For 334596/339773 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 469328 event pairs, 3928 based on Foata normal form. 2367/42199 useless extension candidates. Maximal degree in co-relation 147081. Up to 13561 conditions per place. [2023-11-29 04:25:01,050 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 288 selfloop transitions, 346 changer transitions 0/986 dead transitions. [2023-11-29 04:25:01,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 986 transitions, 12727 flow [2023-11-29 04:25:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:25:01,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 04:25:01,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4751 transitions. [2023-11-29 04:25:01,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8682383040935673 [2023-11-29 04:25:01,055 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4751 transitions. [2023-11-29 04:25:01,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4751 transitions. [2023-11-29 04:25:01,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:25:01,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4751 transitions. [2023-11-29 04:25:01,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 395.9166666666667) internal successors, (4751), 12 states have internal predecessors, (4751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:01,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:01,064 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:01,064 INFO L175 Difference]: Start difference. First operand has 522 places, 878 transitions, 10017 flow. Second operand 12 states and 4751 transitions. [2023-11-29 04:25:01,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 986 transitions, 12727 flow [2023-11-29 04:25:03,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 986 transitions, 12614 flow, removed 54 selfloop flow, removed 3 redundant places. [2023-11-29 04:25:03,637 INFO L231 Difference]: Finished difference. Result has 537 places, 925 transitions, 12372 flow [2023-11-29 04:25:03,638 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=9914, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=878, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=302, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12372, PETRI_PLACES=537, PETRI_TRANSITIONS=925} [2023-11-29 04:25:03,638 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 101 predicate places. [2023-11-29 04:25:03,638 INFO L495 AbstractCegarLoop]: Abstraction has has 537 places, 925 transitions, 12372 flow [2023-11-29 04:25:03,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:03,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:03,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:03,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 04:25:03,639 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:25:03,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:03,640 INFO L85 PathProgramCache]: Analyzing trace with hash -931384273, now seen corresponding path program 8 times [2023-11-29 04:25:03,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:03,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815357371] [2023-11-29 04:25:03,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:03,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:04,234 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 04:25:04,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:04,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815357371] [2023-11-29 04:25:04,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815357371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:04,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:04,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:25:04,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073240284] [2023-11-29 04:25:04,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:04,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:25:04,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:04,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:25:04,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:25:07,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:25:07,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 925 transitions, 12372 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:07,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:25:07,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:25:07,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:25:20,021 INFO L124 PetriNetUnfolderBase]: 12229/43384 cut-off events. [2023-11-29 04:25:20,022 INFO L125 PetriNetUnfolderBase]: For 448178/454024 co-relation queries the response was YES. [2023-11-29 04:25:20,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163077 conditions, 43384 events. 12229/43384 cut-off events. For 448178/454024 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 490117 event pairs, 2655 based on Foata normal form. 2064/43261 useless extension candidates. Maximal degree in co-relation 162272. Up to 13843 conditions per place. [2023-11-29 04:25:20,578 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 294 selfloop transitions, 368 changer transitions 0/1014 dead transitions. [2023-11-29 04:25:20,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 1014 transitions, 14924 flow [2023-11-29 04:25:20,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:25:20,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 04:25:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4717 transitions. [2023-11-29 04:25:20,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8620248538011696 [2023-11-29 04:25:20,582 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4717 transitions. [2023-11-29 04:25:20,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4717 transitions. [2023-11-29 04:25:20,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:25:20,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4717 transitions. [2023-11-29 04:25:20,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 393.0833333333333) internal successors, (4717), 12 states have internal predecessors, (4717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:20,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:20,589 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:20,589 INFO L175 Difference]: Start difference. First operand has 537 places, 925 transitions, 12372 flow. Second operand 12 states and 4717 transitions. [2023-11-29 04:25:20,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 1014 transitions, 14924 flow [2023-11-29 04:25:24,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 1014 transitions, 14786 flow, removed 43 selfloop flow, removed 4 redundant places. [2023-11-29 04:25:24,094 INFO L231 Difference]: Finished difference. Result has 551 places, 958 transitions, 14488 flow [2023-11-29 04:25:24,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=12245, PETRI_DIFFERENCE_MINUEND_PLACES=533, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=925, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=335, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14488, PETRI_PLACES=551, PETRI_TRANSITIONS=958} [2023-11-29 04:25:24,095 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 115 predicate places. [2023-11-29 04:25:24,095 INFO L495 AbstractCegarLoop]: Abstraction has has 551 places, 958 transitions, 14488 flow [2023-11-29 04:25:24,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:24,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:24,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:24,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 04:25:24,096 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:25:24,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:24,096 INFO L85 PathProgramCache]: Analyzing trace with hash 661323979, now seen corresponding path program 9 times [2023-11-29 04:25:24,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:24,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814271751] [2023-11-29 04:25:24,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:24,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:24,687 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 04:25:24,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:24,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814271751] [2023-11-29 04:25:24,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814271751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:24,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:24,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:25:24,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022277741] [2023-11-29 04:25:24,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:24,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:25:24,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:24,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:25:24,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:25:28,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:25:28,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 958 transitions, 14488 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:28,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:25:28,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:25:28,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:25:41,923 INFO L124 PetriNetUnfolderBase]: 12873/45585 cut-off events. [2023-11-29 04:25:41,924 INFO L125 PetriNetUnfolderBase]: For 620053/626154 co-relation queries the response was YES. [2023-11-29 04:25:42,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181714 conditions, 45585 events. 12873/45585 cut-off events. For 620053/626154 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 520977 event pairs, 2523 based on Foata normal form. 2562/45868 useless extension candidates. Maximal degree in co-relation 180901. Up to 14053 conditions per place. [2023-11-29 04:25:42,538 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 345 selfloop transitions, 387 changer transitions 0/1084 dead transitions. [2023-11-29 04:25:42,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 1084 transitions, 17706 flow [2023-11-29 04:25:42,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:25:42,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 04:25:42,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5149 transitions. [2023-11-29 04:25:42,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8685897435897436 [2023-11-29 04:25:42,543 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5149 transitions. [2023-11-29 04:25:42,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5149 transitions. [2023-11-29 04:25:42,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:25:42,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5149 transitions. [2023-11-29 04:25:42,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 396.0769230769231) internal successors, (5149), 13 states have internal predecessors, (5149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:42,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:42,550 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:42,550 INFO L175 Difference]: Start difference. First operand has 551 places, 958 transitions, 14488 flow. Second operand 13 states and 5149 transitions. [2023-11-29 04:25:42,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 1084 transitions, 17706 flow [2023-11-29 04:25:47,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 1084 transitions, 17633 flow, removed 34 selfloop flow, removed 3 redundant places. [2023-11-29 04:25:47,851 INFO L231 Difference]: Finished difference. Result has 566 places, 1001 transitions, 17030 flow [2023-11-29 04:25:47,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=14421, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=348, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=17030, PETRI_PLACES=566, PETRI_TRANSITIONS=1001} [2023-11-29 04:25:47,852 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 130 predicate places. [2023-11-29 04:25:47,853 INFO L495 AbstractCegarLoop]: Abstraction has has 566 places, 1001 transitions, 17030 flow [2023-11-29 04:25:47,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:47,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:25:47,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:47,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 04:25:47,853 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:25:47,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:47,854 INFO L85 PathProgramCache]: Analyzing trace with hash -227358305, now seen corresponding path program 10 times [2023-11-29 04:25:47,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:47,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099428174] [2023-11-29 04:25:47,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:47,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:48,381 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 04:25:48,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:48,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099428174] [2023-11-29 04:25:48,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099428174] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:48,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:48,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:25:48,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010277149] [2023-11-29 04:25:48,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:48,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:25:48,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:48,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:25:48,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:25:51,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:25:51,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 1001 transitions, 17030 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:51,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:25:51,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:25:51,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:26:07,357 INFO L124 PetriNetUnfolderBase]: 13761/48441 cut-off events. [2023-11-29 04:26:07,357 INFO L125 PetriNetUnfolderBase]: For 813375/820096 co-relation queries the response was YES. [2023-11-29 04:26:07,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204998 conditions, 48441 events. 13761/48441 cut-off events. For 813375/820096 co-relation queries the response was YES. Maximal size of possible extension queue 698. Compared 560826 event pairs, 2267 based on Foata normal form. 2900/48966 useless extension candidates. Maximal degree in co-relation 204178. Up to 12335 conditions per place. [2023-11-29 04:26:08,094 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 419 selfloop transitions, 380 changer transitions 0/1151 dead transitions. [2023-11-29 04:26:08,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 1151 transitions, 20671 flow [2023-11-29 04:26:08,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:26:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 04:26:08,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5164 transitions. [2023-11-29 04:26:08,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8711201079622132 [2023-11-29 04:26:08,099 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5164 transitions. [2023-11-29 04:26:08,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5164 transitions. [2023-11-29 04:26:08,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:26:08,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5164 transitions. [2023-11-29 04:26:08,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 397.2307692307692) internal successors, (5164), 13 states have internal predecessors, (5164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:26:08,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:26:08,107 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:26:08,107 INFO L175 Difference]: Start difference. First operand has 566 places, 1001 transitions, 17030 flow. Second operand 13 states and 5164 transitions. [2023-11-29 04:26:08,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 1151 transitions, 20671 flow [2023-11-29 04:26:15,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 1151 transitions, 20148 flow, removed 33 selfloop flow, removed 6 redundant places. [2023-11-29 04:26:15,257 INFO L231 Difference]: Finished difference. Result has 579 places, 1049 transitions, 19268 flow [2023-11-29 04:26:15,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=16531, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1001, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=337, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=627, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19268, PETRI_PLACES=579, PETRI_TRANSITIONS=1049} [2023-11-29 04:26:15,259 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 143 predicate places. [2023-11-29 04:26:15,259 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 1049 transitions, 19268 flow [2023-11-29 04:26:15,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:26:15,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:26:15,260 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:15,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 04:26:15,260 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:26:15,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:15,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1741924645, now seen corresponding path program 11 times [2023-11-29 04:26:15,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:15,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144423767] [2023-11-29 04:26:15,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:15,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:15,778 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 04:26:15,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:15,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144423767] [2023-11-29 04:26:15,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144423767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:15,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:15,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:26:15,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104135758] [2023-11-29 04:26:15,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:15,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:26:15,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:15,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:26:15,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:26:18,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:26:18,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 1049 transitions, 19268 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:26:18,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:26:18,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:26:18,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:26:35,723 INFO L124 PetriNetUnfolderBase]: 14405/50660 cut-off events. [2023-11-29 04:26:35,723 INFO L125 PetriNetUnfolderBase]: For 1026276/1033879 co-relation queries the response was YES. [2023-11-29 04:26:36,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224951 conditions, 50660 events. 14405/50660 cut-off events. For 1026276/1033879 co-relation queries the response was YES. Maximal size of possible extension queue 740. Compared 592615 event pairs, 3013 based on Foata normal form. 2964/51161 useless extension candidates. Maximal degree in co-relation 224123. Up to 15997 conditions per place. [2023-11-29 04:26:36,513 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 383 selfloop transitions, 436 changer transitions 0/1171 dead transitions. [2023-11-29 04:26:36,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 1171 transitions, 22931 flow [2023-11-29 04:26:36,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:26:36,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 04:26:36,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5115 transitions. [2023-11-29 04:26:36,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8628542510121457 [2023-11-29 04:26:36,518 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5115 transitions. [2023-11-29 04:26:36,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5115 transitions. [2023-11-29 04:26:36,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:26:36,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5115 transitions. [2023-11-29 04:26:36,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 393.46153846153845) internal successors, (5115), 13 states have internal predecessors, (5115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:26:36,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:26:36,525 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:26:36,525 INFO L175 Difference]: Start difference. First operand has 579 places, 1049 transitions, 19268 flow. Second operand 13 states and 5115 transitions. [2023-11-29 04:26:36,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 1171 transitions, 22931 flow [2023-11-29 04:26:46,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 1171 transitions, 22767 flow, removed 56 selfloop flow, removed 4 redundant places. [2023-11-29 04:26:46,270 INFO L231 Difference]: Finished difference. Result has 593 places, 1092 transitions, 22159 flow [2023-11-29 04:26:46,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=19120, PETRI_DIFFERENCE_MINUEND_PLACES=575, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=397, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=22159, PETRI_PLACES=593, PETRI_TRANSITIONS=1092} [2023-11-29 04:26:46,272 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 157 predicate places. [2023-11-29 04:26:46,272 INFO L495 AbstractCegarLoop]: Abstraction has has 593 places, 1092 transitions, 22159 flow [2023-11-29 04:26:46,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:26:46,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:26:46,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:46,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 04:26:46,273 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:26:46,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:46,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1989844271, now seen corresponding path program 12 times [2023-11-29 04:26:46,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:46,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346737221] [2023-11-29 04:26:46,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:46,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:46,820 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 04:26:46,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:46,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346737221] [2023-11-29 04:26:46,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346737221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:46,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:46,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:26:46,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163833661] [2023-11-29 04:26:46,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:46,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:26:46,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:46,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:26:46,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:26:50,068 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:26:50,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 1092 transitions, 22159 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:26:50,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:26:50,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:26:50,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:27:07,289 INFO L124 PetriNetUnfolderBase]: 14475/50808 cut-off events. [2023-11-29 04:27:07,289 INFO L125 PetriNetUnfolderBase]: For 1185032/1192968 co-relation queries the response was YES. [2023-11-29 04:27:07,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235955 conditions, 50808 events. 14475/50808 cut-off events. For 1185032/1192968 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 595394 event pairs, 4218 based on Foata normal form. 3618/51996 useless extension candidates. Maximal degree in co-relation 235120. Up to 14889 conditions per place. [2023-11-29 04:27:08,140 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 433 selfloop transitions, 459 changer transitions 0/1244 dead transitions. [2023-11-29 04:27:08,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 1244 transitions, 26429 flow [2023-11-29 04:27:08,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:27:08,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 04:27:08,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5134 transitions. [2023-11-29 04:27:08,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8660593792172739 [2023-11-29 04:27:08,144 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5134 transitions. [2023-11-29 04:27:08,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5134 transitions. [2023-11-29 04:27:08,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:27:08,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5134 transitions. [2023-11-29 04:27:08,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 394.9230769230769) internal successors, (5134), 13 states have internal predecessors, (5134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:08,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:08,151 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:08,151 INFO L175 Difference]: Start difference. First operand has 593 places, 1092 transitions, 22159 flow. Second operand 13 states and 5134 transitions. [2023-11-29 04:27:08,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 605 places, 1244 transitions, 26429 flow [2023-11-29 04:27:18,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 600 places, 1244 transitions, 26299 flow, removed 48 selfloop flow, removed 5 redundant places. [2023-11-29 04:27:18,963 INFO L231 Difference]: Finished difference. Result has 606 places, 1143 transitions, 25074 flow [2023-11-29 04:27:18,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=22031, PETRI_DIFFERENCE_MINUEND_PLACES=588, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1092, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=413, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=25074, PETRI_PLACES=606, PETRI_TRANSITIONS=1143} [2023-11-29 04:27:18,965 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 170 predicate places. [2023-11-29 04:27:18,965 INFO L495 AbstractCegarLoop]: Abstraction has has 606 places, 1143 transitions, 25074 flow [2023-11-29 04:27:18,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:18,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:27:18,965 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:18,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 04:27:18,966 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:27:18,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:18,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1940799425, now seen corresponding path program 13 times [2023-11-29 04:27:18,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:18,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843966285] [2023-11-29 04:27:18,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:18,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:19,496 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 04:27:19,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:19,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843966285] [2023-11-29 04:27:19,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843966285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:19,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:19,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:27:19,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204011707] [2023-11-29 04:27:19,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:19,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:27:19,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:19,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:27:19,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:27:21,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:27:21,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 1143 transitions, 25074 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:21,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:27:21,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:27:21,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:27:39,763 INFO L124 PetriNetUnfolderBase]: 14819/51913 cut-off events. [2023-11-29 04:27:39,763 INFO L125 PetriNetUnfolderBase]: For 1368710/1377104 co-relation queries the response was YES. [2023-11-29 04:27:40,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252166 conditions, 51913 events. 14819/51913 cut-off events. For 1368710/1377104 co-relation queries the response was YES. Maximal size of possible extension queue 796. Compared 611552 event pairs, 1333 based on Foata normal form. 4240/53660 useless extension candidates. Maximal degree in co-relation 251324. Up to 14186 conditions per place. [2023-11-29 04:27:40,700 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 430 selfloop transitions, 455 changer transitions 0/1237 dead transitions. [2023-11-29 04:27:40,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 617 places, 1237 transitions, 28678 flow [2023-11-29 04:27:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:27:40,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 04:27:40,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4725 transitions. [2023-11-29 04:27:40,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8634868421052632 [2023-11-29 04:27:40,703 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4725 transitions. [2023-11-29 04:27:40,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4725 transitions. [2023-11-29 04:27:40,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:27:40,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4725 transitions. [2023-11-29 04:27:40,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 393.75) internal successors, (4725), 12 states have internal predecessors, (4725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:40,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:40,710 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:40,710 INFO L175 Difference]: Start difference. First operand has 606 places, 1143 transitions, 25074 flow. Second operand 12 states and 4725 transitions. [2023-11-29 04:27:40,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 617 places, 1237 transitions, 28678 flow [2023-11-29 04:27:53,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 613 places, 1237 transitions, 28509 flow, removed 71 selfloop flow, removed 4 redundant places. [2023-11-29 04:27:53,982 INFO L231 Difference]: Finished difference. Result has 621 places, 1178 transitions, 27994 flow [2023-11-29 04:27:53,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=24905, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=420, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=693, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=27994, PETRI_PLACES=621, PETRI_TRANSITIONS=1178} [2023-11-29 04:27:53,984 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 185 predicate places. [2023-11-29 04:27:53,984 INFO L495 AbstractCegarLoop]: Abstraction has has 621 places, 1178 transitions, 27994 flow [2023-11-29 04:27:53,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:53,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:27:53,985 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:53,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 04:27:53,985 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:27:53,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:53,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1138943416, now seen corresponding path program 1 times [2023-11-29 04:27:53,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:53,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289877874] [2023-11-29 04:27:53,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:53,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:54,496 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 04:27:54,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:54,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289877874] [2023-11-29 04:27:54,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289877874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:54,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:54,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:27:54,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516956554] [2023-11-29 04:27:54,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:54,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:27:54,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:54,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:27:54,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:27:56,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 456 [2023-11-29 04:27:56,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 1178 transitions, 27994 flow. Second operand has 12 states, 12 states have (on average 315.5) internal successors, (3786), 12 states have internal predecessors, (3786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:56,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:27:56,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 456 [2023-11-29 04:27:56,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:28:25,974 INFO L124 PetriNetUnfolderBase]: 25084/71832 cut-off events. [2023-11-29 04:28:25,974 INFO L125 PetriNetUnfolderBase]: For 1609124/1613824 co-relation queries the response was YES. [2023-11-29 04:28:27,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342547 conditions, 71832 events. 25084/71832 cut-off events. For 1609124/1613824 co-relation queries the response was YES. Maximal size of possible extension queue 1043. Compared 832831 event pairs, 6044 based on Foata normal form. 991/69250 useless extension candidates. Maximal degree in co-relation 341468. Up to 23171 conditions per place. [2023-11-29 04:28:27,451 INFO L140 encePairwiseOnDemand]: 443/456 looper letters, 653 selfloop transitions, 253 changer transitions 0/1258 dead transitions. [2023-11-29 04:28:27,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 630 places, 1258 transitions, 30818 flow [2023-11-29 04:28:27,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:28:27,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 04:28:27,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3604 transitions. [2023-11-29 04:28:27,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7185007974481659 [2023-11-29 04:28:27,454 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3604 transitions. [2023-11-29 04:28:27,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3604 transitions. [2023-11-29 04:28:27,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:28:27,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3604 transitions. [2023-11-29 04:28:27,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 327.6363636363636) internal successors, (3604), 11 states have internal predecessors, (3604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:28:27,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 456.0) internal successors, (5472), 12 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:28:27,460 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 456.0) internal successors, (5472), 12 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:28:27,460 INFO L175 Difference]: Start difference. First operand has 621 places, 1178 transitions, 27994 flow. Second operand 11 states and 3604 transitions. [2023-11-29 04:28:27,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 630 places, 1258 transitions, 30818 flow [2023-11-29 04:28:47,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 627 places, 1258 transitions, 30785 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-11-29 04:28:47,285 INFO L231 Difference]: Finished difference. Result has 627 places, 1177 transitions, 28475 flow [2023-11-29 04:28:47,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=27969, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=28475, PETRI_PLACES=627, PETRI_TRANSITIONS=1177} [2023-11-29 04:28:47,287 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 191 predicate places. [2023-11-29 04:28:47,287 INFO L495 AbstractCegarLoop]: Abstraction has has 627 places, 1177 transitions, 28475 flow [2023-11-29 04:28:47,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 315.5) internal successors, (3786), 12 states have internal predecessors, (3786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:28:47,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:28:47,288 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:28:47,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 04:28:47,288 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:28:47,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:47,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1060647665, now seen corresponding path program 14 times [2023-11-29 04:28:47,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:47,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928497564] [2023-11-29 04:28:47,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:47,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:47,838 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 04:28:47,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:47,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928497564] [2023-11-29 04:28:47,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928497564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:28:47,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:28:47,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:28:47,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608356094] [2023-11-29 04:28:47,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:28:47,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:28:47,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:47,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:28:47,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:28:50,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:28:50,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 627 places, 1177 transitions, 28475 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:28:50,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:28:50,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:28:50,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:29:11,112 INFO L124 PetriNetUnfolderBase]: 15411/53756 cut-off events. [2023-11-29 04:29:11,112 INFO L125 PetriNetUnfolderBase]: For 1679565/1688380 co-relation queries the response was YES. [2023-11-29 04:29:11,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278501 conditions, 53756 events. 15411/53756 cut-off events. For 1679565/1688380 co-relation queries the response was YES. Maximal size of possible extension queue 831. Compared 638557 event pairs, 1315 based on Foata normal form. 4525/55716 useless extension candidates. Maximal degree in co-relation 277621. Up to 14186 conditions per place. [2023-11-29 04:29:12,300 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 473 selfloop transitions, 471 changer transitions 0/1295 dead transitions. [2023-11-29 04:29:12,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 1295 transitions, 32687 flow [2023-11-29 04:29:12,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:29:12,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 04:29:12,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5121 transitions. [2023-11-29 04:29:12,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8638663967611336 [2023-11-29 04:29:12,303 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5121 transitions. [2023-11-29 04:29:12,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5121 transitions. [2023-11-29 04:29:12,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:29:12,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5121 transitions. [2023-11-29 04:29:12,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 393.9230769230769) internal successors, (5121), 13 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:29:12,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:29:12,310 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:29:12,310 INFO L175 Difference]: Start difference. First operand has 627 places, 1177 transitions, 28475 flow. Second operand 13 states and 5121 transitions. [2023-11-29 04:29:12,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 639 places, 1295 transitions, 32687 flow [2023-11-29 04:29:28,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 1295 transitions, 32163 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-11-29 04:29:28,175 INFO L231 Difference]: Finished difference. Result has 637 places, 1217 transitions, 31452 flow [2023-11-29 04:29:28,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=28023, PETRI_DIFFERENCE_MINUEND_PLACES=618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=432, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=712, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=31452, PETRI_PLACES=637, PETRI_TRANSITIONS=1217} [2023-11-29 04:29:28,176 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 201 predicate places. [2023-11-29 04:29:28,176 INFO L495 AbstractCegarLoop]: Abstraction has has 637 places, 1217 transitions, 31452 flow [2023-11-29 04:29:28,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:29:28,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:29:28,177 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:28,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 04:29:28,177 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:29:28,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:28,177 INFO L85 PathProgramCache]: Analyzing trace with hash 567060673, now seen corresponding path program 15 times [2023-11-29 04:29:28,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:28,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145822430] [2023-11-29 04:29:28,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:28,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:29:28,653 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 04:29:28,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:28,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145822430] [2023-11-29 04:29:28,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145822430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:29:28,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:29:28,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:29:28,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436705361] [2023-11-29 04:29:28,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:29:28,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:29:28,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:28,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:29:28,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:29:31,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 04:29:31,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 637 places, 1217 transitions, 31452 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:29:31,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:29:31,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 04:29:31,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:29:52,252 INFO L124 PetriNetUnfolderBase]: 15430/53958 cut-off events. [2023-11-29 04:29:52,252 INFO L125 PetriNetUnfolderBase]: For 1816282/1825936 co-relation queries the response was YES. [2023-11-29 04:29:53,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287644 conditions, 53958 events. 15430/53958 cut-off events. For 1816282/1825936 co-relation queries the response was YES. Maximal size of possible extension queue 843. Compared 642467 event pairs, 1235 based on Foata normal form. 4546/55948 useless extension candidates. Maximal degree in co-relation 286763. Up to 13042 conditions per place. [2023-11-29 04:29:53,509 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 528 selfloop transitions, 486 changer transitions 0/1365 dead transitions. [2023-11-29 04:29:53,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 649 places, 1365 transitions, 36260 flow [2023-11-29 04:29:53,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:29:53,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 04:29:53,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5123 transitions. [2023-11-29 04:29:53,512 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8642037786774629 [2023-11-29 04:29:53,512 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5123 transitions. [2023-11-29 04:29:53,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5123 transitions. [2023-11-29 04:29:53,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:29:53,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5123 transitions. [2023-11-29 04:29:53,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 394.0769230769231) internal successors, (5123), 13 states have internal predecessors, (5123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:29:53,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:29:53,519 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:29:53,519 INFO L175 Difference]: Start difference. First operand has 637 places, 1217 transitions, 31452 flow. Second operand 13 states and 5123 transitions. [2023-11-29 04:29:53,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 649 places, 1365 transitions, 36260 flow [2023-11-29 04:30:09,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 1365 transitions, 36103 flow, removed 62 selfloop flow, removed 4 redundant places. [2023-11-29 04:30:09,977 INFO L231 Difference]: Finished difference. Result has 652 places, 1265 transitions, 34767 flow [2023-11-29 04:30:09,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=31301, PETRI_DIFFERENCE_MINUEND_PLACES=633, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=440, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=737, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=34767, PETRI_PLACES=652, PETRI_TRANSITIONS=1265} [2023-11-29 04:30:09,978 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 216 predicate places. [2023-11-29 04:30:09,978 INFO L495 AbstractCegarLoop]: Abstraction has has 652 places, 1265 transitions, 34767 flow [2023-11-29 04:30:09,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:30:09,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:30:09,979 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:30:09,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 04:30:09,979 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:30:09,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:30:09,979 INFO L85 PathProgramCache]: Analyzing trace with hash 436992456, now seen corresponding path program 1 times [2023-11-29 04:30:09,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:30:09,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673407066] [2023-11-29 04:30:09,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:09,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:30:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:30:10,324 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 04:30:10,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:30:10,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673407066] [2023-11-29 04:30:10,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673407066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:30:10,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:30:10,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:30:10,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52277843] [2023-11-29 04:30:10,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:30:10,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:30:10,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:30:10,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:30:10,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:30:10,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 456 [2023-11-29 04:30:10,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 1265 transitions, 34767 flow. Second operand has 6 states, 6 states have (on average 349.5) internal successors, (2097), 6 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:30:10,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:30:10,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 456 [2023-11-29 04:30:10,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:30:39,797 INFO L124 PetriNetUnfolderBase]: 20109/67635 cut-off events. [2023-11-29 04:30:39,797 INFO L125 PetriNetUnfolderBase]: For 2195905/2201623 co-relation queries the response was YES. [2023-11-29 04:30:41,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359760 conditions, 67635 events. 20109/67635 cut-off events. For 2195905/2201623 co-relation queries the response was YES. Maximal size of possible extension queue 805. Compared 818649 event pairs, 9708 based on Foata normal form. 1432/65653 useless extension candidates. Maximal degree in co-relation 358881. Up to 28459 conditions per place. [2023-11-29 04:30:41,496 INFO L140 encePairwiseOnDemand]: 445/456 looper letters, 643 selfloop transitions, 165 changer transitions 0/1407 dead transitions. [2023-11-29 04:30:41,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 657 places, 1407 transitions, 39516 flow [2023-11-29 04:30:41,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:30:41,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:30:41,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2195 transitions. [2023-11-29 04:30:41,498 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8022660818713451 [2023-11-29 04:30:41,498 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2195 transitions. [2023-11-29 04:30:41,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2195 transitions. [2023-11-29 04:30:41,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:30:41,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2195 transitions. [2023-11-29 04:30:41,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 365.8333333333333) internal successors, (2195), 6 states have internal predecessors, (2195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:30:41,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:30:41,501 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:30:41,501 INFO L175 Difference]: Start difference. First operand has 652 places, 1265 transitions, 34767 flow. Second operand 6 states and 2195 transitions. [2023-11-29 04:30:41,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 657 places, 1407 transitions, 39516 flow [2023-11-29 04:31:06,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 653 places, 1407 transitions, 39204 flow, removed 137 selfloop flow, removed 4 redundant places. [2023-11-29 04:31:06,358 INFO L231 Difference]: Finished difference. Result has 658 places, 1395 transitions, 38340 flow [2023-11-29 04:31:06,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=34580, PETRI_DIFFERENCE_MINUEND_PLACES=648, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=38340, PETRI_PLACES=658, PETRI_TRANSITIONS=1395} [2023-11-29 04:31:06,359 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 222 predicate places. [2023-11-29 04:31:06,359 INFO L495 AbstractCegarLoop]: Abstraction has has 658 places, 1395 transitions, 38340 flow [2023-11-29 04:31:06,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 349.5) internal successors, (2097), 6 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:31:06,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:31:06,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:06,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-29 04:31:06,360 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:31:06,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:31:06,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1793999826, now seen corresponding path program 1 times [2023-11-29 04:31:06,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:31:06,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644915770] [2023-11-29 04:31:06,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:31:06,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:31:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:31:06,855 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 04:31:06,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:31:06,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644915770] [2023-11-29 04:31:06,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644915770] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:31:06,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:31:06,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:31:06,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298466348] [2023-11-29 04:31:06,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:31:06,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:31:06,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:31:06,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:31:06,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:31:08,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 456 [2023-11-29 04:31:08,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 658 places, 1395 transitions, 38340 flow. Second operand has 12 states, 12 states have (on average 336.8333333333333) internal successors, (4042), 12 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:31:08,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:31:08,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 456 [2023-11-29 04:31:08,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:31:39,250 INFO L124 PetriNetUnfolderBase]: 20172/67556 cut-off events. [2023-11-29 04:31:39,251 INFO L125 PetriNetUnfolderBase]: For 2210819/2216934 co-relation queries the response was YES. [2023-11-29 04:31:40,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367990 conditions, 67556 events. 20172/67556 cut-off events. For 2210819/2216934 co-relation queries the response was YES. Maximal size of possible extension queue 801. Compared 816796 event pairs, 5131 based on Foata normal form. 1645/66019 useless extension candidates. Maximal degree in co-relation 367063. Up to 13565 conditions per place. [2023-11-29 04:31:41,060 INFO L140 encePairwiseOnDemand]: 443/456 looper letters, 691 selfloop transitions, 253 changer transitions 0/1477 dead transitions. [2023-11-29 04:31:41,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 667 places, 1477 transitions, 41460 flow [2023-11-29 04:31:41,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:31:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 04:31:41,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3814 transitions. [2023-11-29 04:31:41,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7603668261562998 [2023-11-29 04:31:41,064 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3814 transitions. [2023-11-29 04:31:41,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3814 transitions. [2023-11-29 04:31:41,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:31:41,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3814 transitions. [2023-11-29 04:31:41,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 346.72727272727275) internal successors, (3814), 11 states have internal predecessors, (3814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:31:41,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 456.0) internal successors, (5472), 12 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:31:41,072 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 456.0) internal successors, (5472), 12 states have internal predecessors, (5472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:31:41,072 INFO L175 Difference]: Start difference. First operand has 658 places, 1395 transitions, 38340 flow. Second operand 11 states and 3814 transitions. [2023-11-29 04:31:41,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 667 places, 1477 transitions, 41460 flow [2023-11-29 04:32:06,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 667 places, 1477 transitions, 41094 flow, removed 183 selfloop flow, removed 0 redundant places. [2023-11-29 04:32:06,657 INFO L231 Difference]: Finished difference. Result has 667 places, 1394 transitions, 38476 flow [2023-11-29 04:32:06,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=37970, PETRI_DIFFERENCE_MINUEND_PLACES=657, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=38476, PETRI_PLACES=667, PETRI_TRANSITIONS=1394} [2023-11-29 04:32:06,658 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 231 predicate places. [2023-11-29 04:32:06,658 INFO L495 AbstractCegarLoop]: Abstraction has has 667 places, 1394 transitions, 38476 flow [2023-11-29 04:32:06,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 336.8333333333333) internal successors, (4042), 12 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:06,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:32:06,659 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:06,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 04:32:06,659 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:32:06,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:06,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1947881399, now seen corresponding path program 1 times [2023-11-29 04:32:06,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:06,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177840864] [2023-11-29 04:32:06,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:06,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:07,016 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 04:32:07,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:07,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177840864] [2023-11-29 04:32:07,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177840864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:32:07,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:32:07,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:32:07,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519503496] [2023-11-29 04:32:07,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:32:07,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:32:07,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:07,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:32:07,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:32:07,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 456 [2023-11-29 04:32:07,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 667 places, 1394 transitions, 38476 flow. Second operand has 6 states, 6 states have (on average 335.3333333333333) internal successors, (2012), 6 states have internal predecessors, (2012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:07,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:32:07,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 456 [2023-11-29 04:32:07,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:32:46,615 INFO L124 PetriNetUnfolderBase]: 27018/76681 cut-off events. [2023-11-29 04:32:46,615 INFO L125 PetriNetUnfolderBase]: For 2506865/2510636 co-relation queries the response was YES. [2023-11-29 04:32:48,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435393 conditions, 76681 events. 27018/76681 cut-off events. For 2506865/2510636 co-relation queries the response was YES. Maximal size of possible extension queue 1432. Compared 895830 event pairs, 14130 based on Foata normal form. 1057/74928 useless extension candidates. Maximal degree in co-relation 434320. Up to 40438 conditions per place. [2023-11-29 04:32:48,768 INFO L140 encePairwiseOnDemand]: 445/456 looper letters, 829 selfloop transitions, 165 changer transitions 0/1536 dead transitions. [2023-11-29 04:32:48,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 1536 transitions, 43662 flow [2023-11-29 04:32:48,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:32:48,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:32:48,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2120 transitions. [2023-11-29 04:32:48,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7748538011695907 [2023-11-29 04:32:48,771 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2120 transitions. [2023-11-29 04:32:48,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2120 transitions. [2023-11-29 04:32:48,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:32:48,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2120 transitions. [2023-11-29 04:32:48,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 353.3333333333333) internal successors, (2120), 6 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:48,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:48,774 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:48,774 INFO L175 Difference]: Start difference. First operand has 667 places, 1394 transitions, 38476 flow. Second operand 6 states and 2120 transitions. [2023-11-29 04:32:48,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 672 places, 1536 transitions, 43662 flow [2023-11-29 04:33:23,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 664 places, 1536 transitions, 43269 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-29 04:33:23,943 INFO L231 Difference]: Finished difference. Result has 669 places, 1524 transitions, 42033 flow [2023-11-29 04:33:23,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=38083, PETRI_DIFFERENCE_MINUEND_PLACES=659, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=42033, PETRI_PLACES=669, PETRI_TRANSITIONS=1524} [2023-11-29 04:33:23,945 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 233 predicate places. [2023-11-29 04:33:23,945 INFO L495 AbstractCegarLoop]: Abstraction has has 669 places, 1524 transitions, 42033 flow [2023-11-29 04:33:23,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 335.3333333333333) internal successors, (2012), 6 states have internal predecessors, (2012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:33:23,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:33:23,946 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:33:23,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 04:33:23,946 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 04:33:23,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:23,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1045509099, now seen corresponding path program 1 times [2023-11-29 04:33:23,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:23,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97413975] [2023-11-29 04:33:23,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:23,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:24,317 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 04:33:24,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:24,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97413975] [2023-11-29 04:33:24,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97413975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:33:24,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:33:24,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:33:24,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853543810] [2023-11-29 04:33:24,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:33:24,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:33:24,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:24,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:33:24,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:33:24,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 456 [2023-11-29 04:33:24,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 669 places, 1524 transitions, 42033 flow. Second operand has 6 states, 6 states have (on average 336.1666666666667) internal successors, (2017), 6 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:33:24,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:33:24,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 456 [2023-11-29 04:33:24,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand