./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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme --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 [2023-11-26 10:43:52,319 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:43:52,394 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:43:52,401 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:43:52,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:43:52,432 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:43:52,433 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:43:52,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:43:52,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:43:52,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:43:52,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:43:52,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:43:52,439 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:43:52,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:43:52,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:43:52,441 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:43:52,442 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:43:52,443 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:43:52,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:43:52,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:43:52,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:43:52,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:43:52,447 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:43:52,448 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:43:52,448 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:43:52,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:43:52,450 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:43:52,451 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:43:52,451 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:43:52,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:43:52,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:43:52,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:43:52,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:43:52,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:43:52,455 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:43:52,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:43:52,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:43:52,457 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:43:52,457 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:43:52,458 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:43:52,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:43:52,459 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_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 [2023-11-26 10:43:52,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:43:52,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:43:52,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:43:52,837 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:43:52,838 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:43:52,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread/queue_ok.i [2023-11-26 10:43:56,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:43:56,635 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:43:56,636 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/sv-benchmarks/c/pthread/queue_ok.i [2023-11-26 10:43:56,664 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme/data/bc7c47126/0cbab7faa9e04faba20cbccab0840f1f/FLAG53e06189c [2023-11-26 10:43:56,686 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme/data/bc7c47126/0cbab7faa9e04faba20cbccab0840f1f [2023-11-26 10:43:56,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:43:56,695 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:43:56,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:43:56,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:43:56,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:43:56,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:43:56" (1/1) ... [2023-11-26 10:43:56,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3709838b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:56, skipping insertion in model container [2023-11-26 10:43:56,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:43:56" (1/1) ... [2023-11-26 10:43:56,788 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:43:57,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:43:57,462 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:43:57,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:43:57,618 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:43:57,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57 WrapperNode [2023-11-26 10:43:57,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:43:57,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:43:57,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:43:57,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:43:57,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57" (1/1) ... [2023-11-26 10:43:57,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57" (1/1) ... [2023-11-26 10:43:57,712 INFO L138 Inliner]: procedures = 275, calls = 61, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 399 [2023-11-26 10:43:57,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:43:57,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:43:57,715 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:43:57,715 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:43:57,726 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57" (1/1) ... [2023-11-26 10:43:57,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57" (1/1) ... [2023-11-26 10:43:57,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57" (1/1) ... [2023-11-26 10:43:57,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57" (1/1) ... [2023-11-26 10:43:57,781 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57" (1/1) ... [2023-11-26 10:43:57,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57" (1/1) ... [2023-11-26 10:43:57,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57" (1/1) ... [2023-11-26 10:43:57,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57" (1/1) ... [2023-11-26 10:43:57,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:43:57,811 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:43:57,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:43:57,811 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:43:57,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57" (1/1) ... [2023-11-26 10:43:57,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:43:57,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:57,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:43:57,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e43da9-eba7-45b7-9ee1-47dc6eb89502/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:43:57,986 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-26 10:43:57,986 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-26 10:43:57,986 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-26 10:43:57,987 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-26 10:43:57,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:43:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:43:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 10:43:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:43:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:43:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 10:43:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:43:57,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:43:57,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:43:57,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:43:57,995 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:43:58,280 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:43:58,283 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:43:59,353 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:43:59,391 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:43:59,392 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 10:43:59,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:43:59 BoogieIcfgContainer [2023-11-26 10:43:59,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:43:59,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:43:59,398 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:43:59,402 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:43:59,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:43:56" (1/3) ... [2023-11-26 10:43:59,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4565a157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:43:59, skipping insertion in model container [2023-11-26 10:43:59,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57" (2/3) ... [2023-11-26 10:43:59,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4565a157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:43:59, skipping insertion in model container [2023-11-26 10:43:59,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:43:59" (3/3) ... [2023-11-26 10:43:59,406 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2023-11-26 10:43:59,417 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:43:59,431 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:43:59,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2023-11-26 10:43:59,431 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:43:59,680 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 10:43:59,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 448 places, 456 transitions, 926 flow [2023-11-26 10:44:00,113 INFO L124 PetriNetUnfolderBase]: 15/454 cut-off events. [2023-11-26 10:44:00,115 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 10:44:00,136 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. [2023-11-26 10:44:00,136 INFO L82 GeneralOperation]: Start removeDead. Operand has 448 places, 456 transitions, 926 flow [2023-11-26 10:44:00,160 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 436 places, 444 transitions, 897 flow [2023-11-26 10:44:00,179 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:44:00,188 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;@3efcfb11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:44:00,189 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-11-26 10:44:00,195 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:44:00,195 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2023-11-26 10:44:00,196 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:44:00,196 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:00,197 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] [2023-11-26 10:44:00,198 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)] === [2023-11-26 10:44:00,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:00,205 INFO L85 PathProgramCache]: Analyzing trace with hash -796067664, now seen corresponding path program 1 times [2023-11-26 10:44:00,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:00,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895718700] [2023-11-26 10:44:00,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:00,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:00,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:00,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:00,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895718700] [2023-11-26 10:44:00,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895718700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:00,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:00,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:00,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494406580] [2023-11-26 10:44:00,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:00,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:00,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:00,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:00,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:00,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 456 [2023-11-26 10:44:00,666 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) [2023-11-26 10:44:00,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:00,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 456 [2023-11-26 10:44:00,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:01,130 INFO L124 PetriNetUnfolderBase]: 40/985 cut-off events. [2023-11-26 10:44:01,131 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-26 10:44:01,141 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. [2023-11-26 10:44:01,150 INFO L140 encePairwiseOnDemand]: 448/456 looper letters, 13 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2023-11-26 10:44:01,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 427 transitions, 893 flow [2023-11-26 10:44:01,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:01,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:01,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1308 transitions. [2023-11-26 10:44:01,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.956140350877193 [2023-11-26 10:44:01,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1308 transitions. [2023-11-26 10:44:01,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1308 transitions. [2023-11-26 10:44:01,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:01,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1308 transitions. [2023-11-26 10:44:01,205 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) [2023-11-26 10:44:01,219 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) [2023-11-26 10:44:01,222 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) [2023-11-26 10:44:01,225 INFO L175 Difference]: Start difference. First operand has 436 places, 444 transitions, 897 flow. Second operand 3 states and 1308 transitions. [2023-11-26 10:44:01,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 427 transitions, 893 flow [2023-11-26 10:44:01,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 427 transitions, 888 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 10:44:01,256 INFO L231 Difference]: Finished difference. Result has 424 places, 427 transitions, 862 flow [2023-11-26 10:44:01,260 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} [2023-11-26 10:44:01,267 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -12 predicate places. [2023-11-26 10:44:01,267 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 427 transitions, 862 flow [2023-11-26 10:44:01,269 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) [2023-11-26 10:44:01,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:01,270 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] [2023-11-26 10:44:01,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:44:01,271 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)] === [2023-11-26 10:44:01,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:01,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1013186647, now seen corresponding path program 1 times [2023-11-26 10:44:01,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:01,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829446320] [2023-11-26 10:44:01,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:01,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:01,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:01,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:01,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829446320] [2023-11-26 10:44:01,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829446320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:01,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:01,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:01,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887123548] [2023-11-26 10:44:01,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:01,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:01,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:01,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:01,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:01,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 456 [2023-11-26 10:44:01,474 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) [2023-11-26 10:44:01,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:01,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 456 [2023-11-26 10:44:01,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:01,881 INFO L124 PetriNetUnfolderBase]: 43/1121 cut-off events. [2023-11-26 10:44:01,882 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-26 10:44:01,892 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. [2023-11-26 10:44:01,900 INFO L140 encePairwiseOnDemand]: 453/456 looper letters, 13 selfloop transitions, 2 changer transitions 0/426 dead transitions. [2023-11-26 10:44:01,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 426 transitions, 890 flow [2023-11-26 10:44:01,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:01,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:01,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1303 transitions. [2023-11-26 10:44:01,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.952485380116959 [2023-11-26 10:44:01,907 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1303 transitions. [2023-11-26 10:44:01,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1303 transitions. [2023-11-26 10:44:01,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:01,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1303 transitions. [2023-11-26 10:44:01,913 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) [2023-11-26 10:44:01,919 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) [2023-11-26 10:44:01,921 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) [2023-11-26 10:44:01,922 INFO L175 Difference]: Start difference. First operand has 424 places, 427 transitions, 862 flow. Second operand 3 states and 1303 transitions. [2023-11-26 10:44:01,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 426 transitions, 890 flow [2023-11-26 10:44:01,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 426 transitions, 886 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:44:01,934 INFO L231 Difference]: Finished difference. Result has 423 places, 426 transitions, 860 flow [2023-11-26 10:44:01,936 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} [2023-11-26 10:44:01,937 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -13 predicate places. [2023-11-26 10:44:01,937 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 426 transitions, 860 flow [2023-11-26 10:44:01,938 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) [2023-11-26 10:44:01,939 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:01,940 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] [2023-11-26 10:44:01,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:44:01,944 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)] === [2023-11-26 10:44:01,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:01,945 INFO L85 PathProgramCache]: Analyzing trace with hash -439365894, now seen corresponding path program 1 times [2023-11-26 10:44:01,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:01,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661206530] [2023-11-26 10:44:01,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:01,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:02,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:02,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:02,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661206530] [2023-11-26 10:44:02,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661206530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:02,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:02,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:44:02,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033583190] [2023-11-26 10:44:02,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:02,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:02,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:02,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:02,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:03,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 456 [2023-11-26 10:44:03,389 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) [2023-11-26 10:44:03,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:03,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 456 [2023-11-26 10:44:03,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:17,031 INFO L124 PetriNetUnfolderBase]: 18045/52322 cut-off events. [2023-11-26 10:44:17,031 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-26 10:44:17,221 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. [2023-11-26 10:44:17,695 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 108 selfloop transitions, 5 changer transitions 0/425 dead transitions. [2023-11-26 10:44:17,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 425 transitions, 1084 flow [2023-11-26 10:44:17,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:44:17,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:44:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2106 transitions. [2023-11-26 10:44:17,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7697368421052632 [2023-11-26 10:44:17,705 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2106 transitions. [2023-11-26 10:44:17,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2106 transitions. [2023-11-26 10:44:17,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:17,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2106 transitions. [2023-11-26 10:44:17,716 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) [2023-11-26 10:44:17,725 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) [2023-11-26 10:44:17,729 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) [2023-11-26 10:44:17,730 INFO L175 Difference]: Start difference. First operand has 423 places, 426 transitions, 860 flow. Second operand 6 states and 2106 transitions. [2023-11-26 10:44:17,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 425 transitions, 1084 flow [2023-11-26 10:44:17,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 425 transitions, 1080 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:44:17,749 INFO L231 Difference]: Finished difference. Result has 425 places, 425 transitions, 864 flow [2023-11-26 10:44:17,751 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} [2023-11-26 10:44:17,753 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -11 predicate places. [2023-11-26 10:44:17,753 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 425 transitions, 864 flow [2023-11-26 10:44:17,756 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) [2023-11-26 10:44:17,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:17,756 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] [2023-11-26 10:44:17,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:44:17,757 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)] === [2023-11-26 10:44:17,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:17,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1140905659, now seen corresponding path program 1 times [2023-11-26 10:44:17,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:17,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715596361] [2023-11-26 10:44:17,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:17,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:18,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:18,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:18,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715596361] [2023-11-26 10:44:18,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715596361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:18,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:18,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:44:18,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840593375] [2023-11-26 10:44:18,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:18,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:18,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:18,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:18,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:19,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 456 [2023-11-26 10:44:19,404 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) [2023-11-26 10:44:19,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:19,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 456 [2023-11-26 10:44:19,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:29,306 INFO L124 PetriNetUnfolderBase]: 18045/52321 cut-off events. [2023-11-26 10:44:29,306 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-26 10:44:29,438 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. [2023-11-26 10:44:29,892 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 108 selfloop transitions, 5 changer transitions 0/424 dead transitions. [2023-11-26 10:44:29,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 424 transitions, 1088 flow [2023-11-26 10:44:29,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:44:29,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:44:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2106 transitions. [2023-11-26 10:44:29,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7697368421052632 [2023-11-26 10:44:29,901 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2106 transitions. [2023-11-26 10:44:29,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2106 transitions. [2023-11-26 10:44:29,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:29,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2106 transitions. [2023-11-26 10:44:29,911 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) [2023-11-26 10:44:29,920 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) [2023-11-26 10:44:29,923 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) [2023-11-26 10:44:29,923 INFO L175 Difference]: Start difference. First operand has 425 places, 425 transitions, 864 flow. Second operand 6 states and 2106 transitions. [2023-11-26 10:44:29,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 424 transitions, 1088 flow [2023-11-26 10:44:29,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 424 transitions, 1078 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:44:29,936 INFO L231 Difference]: Finished difference. Result has 424 places, 424 transitions, 862 flow [2023-11-26 10:44:29,937 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} [2023-11-26 10:44:29,939 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -12 predicate places. [2023-11-26 10:44:29,940 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 424 transitions, 862 flow [2023-11-26 10:44:29,942 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) [2023-11-26 10:44:29,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:29,942 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] [2023-11-26 10:44:29,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:44:29,943 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)] === [2023-11-26 10:44:29,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:29,944 INFO L85 PathProgramCache]: Analyzing trace with hash -209609778, now seen corresponding path program 1 times [2023-11-26 10:44:29,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:29,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615937663] [2023-11-26 10:44:29,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:29,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:30,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:30,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:30,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615937663] [2023-11-26 10:44:30,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615937663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:30,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:30,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:44:30,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57593405] [2023-11-26 10:44:30,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:30,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:30,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:30,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:30,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:31,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 456 [2023-11-26 10:44:31,085 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) [2023-11-26 10:44:31,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:31,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 456 [2023-11-26 10:44:31,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:40,843 INFO L124 PetriNetUnfolderBase]: 18045/52320 cut-off events. [2023-11-26 10:44:40,844 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-26 10:44:40,985 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. [2023-11-26 10:44:41,186 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 108 selfloop transitions, 5 changer transitions 0/423 dead transitions. [2023-11-26 10:44:41,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 423 transitions, 1086 flow [2023-11-26 10:44:41,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:44:41,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:44:41,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2106 transitions. [2023-11-26 10:44:41,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7697368421052632 [2023-11-26 10:44:41,206 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2106 transitions. [2023-11-26 10:44:41,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2106 transitions. [2023-11-26 10:44:41,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:41,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2106 transitions. [2023-11-26 10:44:41,215 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) [2023-11-26 10:44:41,222 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) [2023-11-26 10:44:41,224 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) [2023-11-26 10:44:41,224 INFO L175 Difference]: Start difference. First operand has 424 places, 424 transitions, 862 flow. Second operand 6 states and 2106 transitions. [2023-11-26 10:44:41,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 423 transitions, 1086 flow [2023-11-26 10:44:41,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 423 transitions, 1076 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:44:41,239 INFO L231 Difference]: Finished difference. Result has 423 places, 423 transitions, 860 flow [2023-11-26 10:44:41,240 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} [2023-11-26 10:44:41,241 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -13 predicate places. [2023-11-26 10:44:41,241 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 423 transitions, 860 flow [2023-11-26 10:44:41,242 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) [2023-11-26 10:44:41,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:41,243 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] [2023-11-26 10:44:41,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:44:41,244 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)] === [2023-11-26 10:44:41,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:41,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1452068456, now seen corresponding path program 1 times [2023-11-26 10:44:41,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:41,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410915729] [2023-11-26 10:44:41,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:41,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:42,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:42,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:42,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410915729] [2023-11-26 10:44:42,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410915729] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:42,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:42,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:44:42,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635336283] [2023-11-26 10:44:42,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:42,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:42,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:42,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:42,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:43,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 456 [2023-11-26 10:44:43,593 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) [2023-11-26 10:44:43,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:43,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 456 [2023-11-26 10:44:43,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand