./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --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 ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:39:42,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:39:42,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:39:42,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:39:42,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:39:42,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:39:42,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:39:42,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:39:42,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:39:42,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:39:42,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:39:42,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:39:42,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:39:42,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:39:42,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:39:42,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:39:42,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:39:42,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:39:42,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:39:42,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:39:42,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:39:42,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:39:42,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:39:42,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:39:42,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:39:42,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:39:42,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:39:42,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:39:42,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:39:42,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:39:42,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:39:42,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:39:42,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:39:42,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:39:42,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:39:42,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:39:42,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:39:42,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:39:42,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:39:42,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:39:42,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:39:42,597 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 15:39:42,632 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:39:42,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:39:42,633 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:39:42,633 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:39:42,634 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:39:42,634 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:39:42,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:39:42,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:39:42,635 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:39:42,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:39:42,635 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:39:42,636 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:39:42,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:39:42,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:39:42,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:39:42,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:39:42,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:39:42,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:39:42,637 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 15:39:42,637 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:39:42,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:39:42,637 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:39:42,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:39:42,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:39:42,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:39:42,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:39:42,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:39:42,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:39:42,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:39:42,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:39:42,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:39:42,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:39:42,639 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:39:42,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:39:42,640 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:39:42,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:39:42,640 INFO L138 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_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2022-11-25 15:39:42,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:39:42,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:39:42,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:39:42,982 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:39:42,983 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:39:42,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread/singleton.i [2022-11-25 15:39:46,199 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:39:46,537 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:39:46,543 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/sv-benchmarks/c/pthread/singleton.i [2022-11-25 15:39:46,557 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/data/3f26cbdad/3e3966278ac74e3596c191eaede209cc/FLAG271a42f30 [2022-11-25 15:39:46,575 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/data/3f26cbdad/3e3966278ac74e3596c191eaede209cc [2022-11-25 15:39:46,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:39:46,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:39:46,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:39:46,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:39:46,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:39:46,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:39:46" (1/1) ... [2022-11-25 15:39:46,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e72369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:46, skipping insertion in model container [2022-11-25 15:39:46,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:39:46" (1/1) ... [2022-11-25 15:39:46,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:39:46,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:39:46,875 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:39:47,263 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-11-25 15:39:47,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:39:47,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:39:47,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:39:47,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:39:47,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:39:47,321 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:39:47,350 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:39:47,386 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-11-25 15:39:47,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:39:47,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:39:47,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:39:47,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:39:47,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:39:47,493 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:39:47,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:47 WrapperNode [2022-11-25 15:39:47,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:39:47,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:39:47,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:39:47,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:39:47,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:47" (1/1) ... [2022-11-25 15:39:47,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:47" (1/1) ... [2022-11-25 15:39:47,593 INFO L138 Inliner]: procedures = 325, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2022-11-25 15:39:47,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:39:47,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:39:47,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:39:47,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:39:47,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:47" (1/1) ... [2022-11-25 15:39:47,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:47" (1/1) ... [2022-11-25 15:39:47,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:47" (1/1) ... [2022-11-25 15:39:47,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:47" (1/1) ... [2022-11-25 15:39:47,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:47" (1/1) ... [2022-11-25 15:39:47,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:47" (1/1) ... [2022-11-25 15:39:47,677 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:47" (1/1) ... [2022-11-25 15:39:47,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:47" (1/1) ... [2022-11-25 15:39:47,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:39:47,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:39:47,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:39:47,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:39:47,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:47" (1/1) ... [2022-11-25 15:39:47,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:39:47,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:39:47,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:39:47,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:39:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 15:39:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:39:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:39:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 15:39:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:39:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-11-25 15:39:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-11-25 15:39:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 15:39:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 15:39:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 15:39:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 15:39:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 15:39:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 15:39:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:39:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 15:39:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:39:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:39:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:39:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:39:47,813 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 15:39:48,063 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:39:48,065 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:39:48,567 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:39:48,637 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:39:48,638 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:39:48,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:39:48 BoogieIcfgContainer [2022-11-25 15:39:48,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:39:48,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:39:48,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:39:48,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:39:48,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:39:46" (1/3) ... [2022-11-25 15:39:48,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608d2fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:39:48, skipping insertion in model container [2022-11-25 15:39:48,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:39:47" (2/3) ... [2022-11-25 15:39:48,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608d2fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:39:48, skipping insertion in model container [2022-11-25 15:39:48,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:39:48" (3/3) ... [2022-11-25 15:39:48,651 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2022-11-25 15:39:48,661 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 15:39:48,673 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:39:48,673 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-25 15:39:48,673 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 15:39:48,934 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-11-25 15:39:48,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 282 places, 272 transitions, 651 flow [2022-11-25 15:39:49,137 INFO L130 PetriNetUnfolder]: 6/185 cut-off events. [2022-11-25 15:39:49,137 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 15:39:49,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 185 events. 6/185 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2022-11-25 15:39:49,145 INFO L82 GeneralOperation]: Start removeDead. Operand has 282 places, 272 transitions, 651 flow [2022-11-25 15:39:49,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 168 transitions, 387 flow [2022-11-25 15:39:49,163 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 15:39:49,189 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 182 places, 168 transitions, 387 flow [2022-11-25 15:39:49,192 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 182 places, 168 transitions, 387 flow [2022-11-25 15:39:49,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 168 transitions, 387 flow [2022-11-25 15:39:49,242 INFO L130 PetriNetUnfolder]: 5/168 cut-off events. [2022-11-25 15:39:49,243 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 15:39:49,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 168 events. 5/168 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 109 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2022-11-25 15:39:49,248 INFO L119 LiptonReduction]: Number of co-enabled transitions 4608 [2022-11-25 15:40:03,032 INFO L134 LiptonReduction]: Checked pairs total: 20778 [2022-11-25 15:40:03,033 INFO L136 LiptonReduction]: Total number of compositions: 94 [2022-11-25 15:40:03,049 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:40:03,056 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=LoopsAndPotentialCycles, 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;@23ddf9b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:40:03,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-11-25 15:40:03,060 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-11-25 15:40:03,060 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:40:03,060 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:40:03,061 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 15:40:03,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-25 15:40:03,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:03,067 INFO L85 PathProgramCache]: Analyzing trace with hash 633444369, now seen corresponding path program 1 times [2022-11-25 15:40:03,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:03,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170993634] [2022-11-25 15:40:03,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:03,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:03,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:03,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:03,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170993634] [2022-11-25 15:40:03,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170993634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:03,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:03,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:40:03,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373174781] [2022-11-25 15:40:03,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:03,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:40:03,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:03,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:40:03,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:40:03,337 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 368 [2022-11-25 15:40:03,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 86 transitions, 223 flow. Second operand has 2 states, 2 states have (on average 231.5) internal successors, (463), 2 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:03,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:40:03,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 368 [2022-11-25 15:40:03,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:40:03,551 INFO L130 PetriNetUnfolder]: 321/937 cut-off events. [2022-11-25 15:40:03,552 INFO L131 PetriNetUnfolder]: For 111/111 co-relation queries the response was YES. [2022-11-25 15:40:03,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1571 conditions, 937 events. 321/937 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4618 event pairs, 289 based on Foata normal form. 1/845 useless extension candidates. Maximal degree in co-relation 1554. Up to 496 conditions per place. [2022-11-25 15:40:03,562 INFO L137 encePairwiseOnDemand]: 357/368 looper letters, 32 selfloop transitions, 0 changer transitions 1/75 dead transitions. [2022-11-25 15:40:03,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 75 transitions, 267 flow [2022-11-25 15:40:03,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 15:40:03,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 15:40:03,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 502 transitions. [2022-11-25 15:40:03,588 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6820652173913043 [2022-11-25 15:40:03,588 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 502 transitions. [2022-11-25 15:40:03,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 502 transitions. [2022-11-25 15:40:03,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:40:03,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 502 transitions. [2022-11-25 15:40:03,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 251.0) internal successors, (502), 2 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:03,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:03,616 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:03,617 INFO L175 Difference]: Start difference. First operand has 100 places, 86 transitions, 223 flow. Second operand 2 states and 502 transitions. [2022-11-25 15:40:03,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 75 transitions, 267 flow [2022-11-25 15:40:03,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 233 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-25 15:40:03,628 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 164 flow [2022-11-25 15:40:03,631 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=164, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2022-11-25 15:40:03,635 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, -22 predicate places. [2022-11-25 15:40:03,636 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 164 flow [2022-11-25 15:40:03,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 231.5) internal successors, (463), 2 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:03,642 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:40:03,643 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:40:03,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:40:03,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-25 15:40:03,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:03,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1991694758, now seen corresponding path program 1 times [2022-11-25 15:40:03,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:03,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001974788] [2022-11-25 15:40:03,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:03,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:04,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:04,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:04,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001974788] [2022-11-25 15:40:04,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001974788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:04,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:04,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:40:04,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723863872] [2022-11-25 15:40:04,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:04,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:40:04,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:04,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:40:04,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:40:04,851 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 368 [2022-11-25 15:40:04,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 221.33333333333334) internal successors, (1328), 6 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:04,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:40:04,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 368 [2022-11-25 15:40:04,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:40:05,955 INFO L130 PetriNetUnfolder]: 2246/4911 cut-off events. [2022-11-25 15:40:05,956 INFO L131 PetriNetUnfolder]: For 202/202 co-relation queries the response was YES. [2022-11-25 15:40:05,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8350 conditions, 4911 events. 2246/4911 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 33985 event pairs, 894 based on Foata normal form. 0/4392 useless extension candidates. Maximal degree in co-relation 8347. Up to 2320 conditions per place. [2022-11-25 15:40:05,985 INFO L137 encePairwiseOnDemand]: 358/368 looper letters, 125 selfloop transitions, 21 changer transitions 12/194 dead transitions. [2022-11-25 15:40:05,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 194 transitions, 780 flow [2022-11-25 15:40:05,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:40:05,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 15:40:05,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1479 transitions. [2022-11-25 15:40:05,990 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6698369565217391 [2022-11-25 15:40:05,990 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1479 transitions. [2022-11-25 15:40:05,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1479 transitions. [2022-11-25 15:40:05,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:40:05,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1479 transitions. [2022-11-25 15:40:05,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 246.5) internal successors, (1479), 6 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:05,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:06,001 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:06,001 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 164 flow. Second operand 6 states and 1479 transitions. [2022-11-25 15:40:06,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 194 transitions, 780 flow [2022-11-25 15:40:06,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 194 transitions, 780 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 15:40:06,008 INFO L231 Difference]: Finished difference. Result has 87 places, 94 transitions, 306 flow [2022-11-25 15:40:06,009 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=87, PETRI_TRANSITIONS=94} [2022-11-25 15:40:06,010 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, -13 predicate places. [2022-11-25 15:40:06,010 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 94 transitions, 306 flow [2022-11-25 15:40:06,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 221.33333333333334) internal successors, (1328), 6 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:06,011 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:40:06,011 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:40:06,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:40:06,012 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-25 15:40:06,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:06,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1145371658, now seen corresponding path program 1 times [2022-11-25 15:40:06,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:06,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119176451] [2022-11-25 15:40:06,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:06,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:06,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:06,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:06,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119176451] [2022-11-25 15:40:06,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119176451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:06,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:06,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:40:06,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171776735] [2022-11-25 15:40:06,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:06,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:40:06,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:06,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:40:06,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:40:06,693 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 368 [2022-11-25 15:40:06,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 94 transitions, 306 flow. Second operand has 5 states, 5 states have (on average 224.6) internal successors, (1123), 5 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:06,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:40:06,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 368 [2022-11-25 15:40:06,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:40:07,163 INFO L130 PetriNetUnfolder]: 1589/2718 cut-off events. [2022-11-25 15:40:07,164 INFO L131 PetriNetUnfolder]: For 1851/2474 co-relation queries the response was YES. [2022-11-25 15:40:07,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7462 conditions, 2718 events. 1589/2718 cut-off events. For 1851/2474 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13643 event pairs, 288 based on Foata normal form. 6/2488 useless extension candidates. Maximal degree in co-relation 7454. Up to 1837 conditions per place. [2022-11-25 15:40:07,191 INFO L137 encePairwiseOnDemand]: 360/368 looper letters, 60 selfloop transitions, 23 changer transitions 0/126 dead transitions. [2022-11-25 15:40:07,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 126 transitions, 611 flow [2022-11-25 15:40:07,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:40:07,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 15:40:07,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1167 transitions. [2022-11-25 15:40:07,195 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6342391304347826 [2022-11-25 15:40:07,195 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1167 transitions. [2022-11-25 15:40:07,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1167 transitions. [2022-11-25 15:40:07,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:40:07,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1167 transitions. [2022-11-25 15:40:07,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 233.4) internal successors, (1167), 5 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:07,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 368.0) internal successors, (2208), 6 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:07,204 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 368.0) internal successors, (2208), 6 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:07,204 INFO L175 Difference]: Start difference. First operand has 87 places, 94 transitions, 306 flow. Second operand 5 states and 1167 transitions. [2022-11-25 15:40:07,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 126 transitions, 611 flow [2022-11-25 15:40:07,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 126 transitions, 611 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 15:40:07,218 INFO L231 Difference]: Finished difference. Result has 91 places, 113 transitions, 523 flow [2022-11-25 15:40:07,218 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=523, PETRI_PLACES=91, PETRI_TRANSITIONS=113} [2022-11-25 15:40:07,219 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, -9 predicate places. [2022-11-25 15:40:07,219 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 113 transitions, 523 flow [2022-11-25 15:40:07,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 224.6) internal successors, (1123), 5 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:07,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:40:07,220 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:40:07,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:40:07,221 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-25 15:40:07,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:07,221 INFO L85 PathProgramCache]: Analyzing trace with hash 727327148, now seen corresponding path program 1 times [2022-11-25 15:40:07,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:07,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792038865] [2022-11-25 15:40:07,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:07,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:08,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:08,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:08,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792038865] [2022-11-25 15:40:08,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792038865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:08,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:08,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 15:40:08,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334743508] [2022-11-25 15:40:08,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:08,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 15:40:08,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:08,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 15:40:08,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:40:10,382 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 368 [2022-11-25 15:40:10,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 113 transitions, 523 flow. Second operand has 11 states, 11 states have (on average 206.54545454545453) internal successors, (2272), 11 states have internal predecessors, (2272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:10,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:40:10,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 368 [2022-11-25 15:40:10,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:40:12,170 INFO L130 PetriNetUnfolder]: 3044/6575 cut-off events. [2022-11-25 15:40:12,171 INFO L131 PetriNetUnfolder]: For 6252/6265 co-relation queries the response was YES. [2022-11-25 15:40:12,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17958 conditions, 6575 events. 3044/6575 cut-off events. For 6252/6265 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 48045 event pairs, 1008 based on Foata normal form. 137/6025 useless extension candidates. Maximal degree in co-relation 17948. Up to 2298 conditions per place. [2022-11-25 15:40:12,226 INFO L137 encePairwiseOnDemand]: 354/368 looper letters, 191 selfloop transitions, 42 changer transitions 27/296 dead transitions. [2022-11-25 15:40:12,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 296 transitions, 1698 flow [2022-11-25 15:40:12,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 15:40:12,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 15:40:12,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2681 transitions. [2022-11-25 15:40:12,232 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6071105072463768 [2022-11-25 15:40:12,232 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2681 transitions. [2022-11-25 15:40:12,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2681 transitions. [2022-11-25 15:40:12,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:40:12,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2681 transitions. [2022-11-25 15:40:12,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 223.41666666666666) internal successors, (2681), 12 states have internal predecessors, (2681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:12,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 368.0) internal successors, (4784), 13 states have internal predecessors, (4784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:12,250 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 368.0) internal successors, (4784), 13 states have internal predecessors, (4784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:12,250 INFO L175 Difference]: Start difference. First operand has 91 places, 113 transitions, 523 flow. Second operand 12 states and 2681 transitions. [2022-11-25 15:40:12,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 296 transitions, 1698 flow [2022-11-25 15:40:12,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 296 transitions, 1651 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 15:40:12,267 INFO L231 Difference]: Finished difference. Result has 106 places, 125 transitions, 746 flow [2022-11-25 15:40:12,267 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=746, PETRI_PLACES=106, PETRI_TRANSITIONS=125} [2022-11-25 15:40:12,268 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 6 predicate places. [2022-11-25 15:40:12,268 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 125 transitions, 746 flow [2022-11-25 15:40:12,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 206.54545454545453) internal successors, (2272), 11 states have internal predecessors, (2272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:12,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:40:12,269 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:40:12,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:40:12,270 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-25 15:40:12,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:12,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1140309932, now seen corresponding path program 2 times [2022-11-25 15:40:12,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:12,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537079857] [2022-11-25 15:40:12,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:12,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:12,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:12,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:12,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537079857] [2022-11-25 15:40:12,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537079857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:12,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:12,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:40:12,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545927674] [2022-11-25 15:40:12,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:12,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:40:12,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:12,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:40:12,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:40:13,912 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 368 [2022-11-25 15:40:13,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 125 transitions, 746 flow. Second operand has 9 states, 9 states have (on average 219.77777777777777) internal successors, (1978), 9 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:13,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:40:13,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 368 [2022-11-25 15:40:13,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:40:15,345 INFO L130 PetriNetUnfolder]: 2871/5620 cut-off events. [2022-11-25 15:40:15,345 INFO L131 PetriNetUnfolder]: For 9530/9714 co-relation queries the response was YES. [2022-11-25 15:40:15,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18291 conditions, 5620 events. 2871/5620 cut-off events. For 9530/9714 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 35698 event pairs, 685 based on Foata normal form. 70/5095 useless extension candidates. Maximal degree in co-relation 18275. Up to 2294 conditions per place. [2022-11-25 15:40:15,409 INFO L137 encePairwiseOnDemand]: 362/368 looper letters, 175 selfloop transitions, 8 changer transitions 16/234 dead transitions. [2022-11-25 15:40:15,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 234 transitions, 1510 flow [2022-11-25 15:40:15,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:40:15,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 15:40:15,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1675 transitions. [2022-11-25 15:40:15,414 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6502329192546584 [2022-11-25 15:40:15,415 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1675 transitions. [2022-11-25 15:40:15,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1675 transitions. [2022-11-25 15:40:15,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:40:15,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1675 transitions. [2022-11-25 15:40:15,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 239.28571428571428) internal successors, (1675), 7 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:15,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 368.0) internal successors, (2944), 8 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:15,424 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 368.0) internal successors, (2944), 8 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:15,424 INFO L175 Difference]: Start difference. First operand has 106 places, 125 transitions, 746 flow. Second operand 7 states and 1675 transitions. [2022-11-25 15:40:15,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 234 transitions, 1510 flow [2022-11-25 15:40:15,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 234 transitions, 1451 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-11-25 15:40:15,485 INFO L231 Difference]: Finished difference. Result has 102 places, 120 transitions, 684 flow [2022-11-25 15:40:15,486 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=684, PETRI_PLACES=102, PETRI_TRANSITIONS=120} [2022-11-25 15:40:15,489 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 2 predicate places. [2022-11-25 15:40:15,489 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 120 transitions, 684 flow [2022-11-25 15:40:15,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 219.77777777777777) internal successors, (1978), 9 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:15,490 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:40:15,490 INFO L209 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] [2022-11-25 15:40:15,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:40:15,491 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-25 15:40:15,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:15,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1694262833, now seen corresponding path program 1 times [2022-11-25 15:40:15,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:15,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642631161] [2022-11-25 15:40:15,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:15,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:15,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:15,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:15,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642631161] [2022-11-25 15:40:15,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642631161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:15,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:15,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:40:15,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735819943] [2022-11-25 15:40:15,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:15,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:40:15,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:15,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:40:15,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:40:16,497 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 368 [2022-11-25 15:40:16,498 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 120 transitions, 684 flow. Second operand has 6 states, 6 states have (on average 224.5) internal successors, (1347), 6 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:16,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:40:16,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 368 [2022-11-25 15:40:16,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:40:18,792 INFO L130 PetriNetUnfolder]: 8718/14382 cut-off events. [2022-11-25 15:40:18,793 INFO L131 PetriNetUnfolder]: For 42118/42925 co-relation queries the response was YES. [2022-11-25 15:40:18,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51079 conditions, 14382 events. 8718/14382 cut-off events. For 42118/42925 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 93579 event pairs, 1246 based on Foata normal form. 200/13358 useless extension candidates. Maximal degree in co-relation 51066. Up to 9656 conditions per place. [2022-11-25 15:40:19,014 INFO L137 encePairwiseOnDemand]: 358/368 looper letters, 90 selfloop transitions, 197 changer transitions 0/326 dead transitions. [2022-11-25 15:40:19,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 326 transitions, 3084 flow [2022-11-25 15:40:19,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:40:19,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 15:40:19,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1391 transitions. [2022-11-25 15:40:19,018 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6299818840579711 [2022-11-25 15:40:19,019 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1391 transitions. [2022-11-25 15:40:19,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1391 transitions. [2022-11-25 15:40:19,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:40:19,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1391 transitions. [2022-11-25 15:40:19,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:19,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:19,028 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:19,029 INFO L175 Difference]: Start difference. First operand has 102 places, 120 transitions, 684 flow. Second operand 6 states and 1391 transitions. [2022-11-25 15:40:19,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 326 transitions, 3084 flow [2022-11-25 15:40:19,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 326 transitions, 3067 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-11-25 15:40:19,080 INFO L231 Difference]: Finished difference. Result has 103 places, 316 transitions, 3361 flow [2022-11-25 15:40:19,080 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3361, PETRI_PLACES=103, PETRI_TRANSITIONS=316} [2022-11-25 15:40:19,083 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 3 predicate places. [2022-11-25 15:40:19,083 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 316 transitions, 3361 flow [2022-11-25 15:40:19,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.5) internal successors, (1347), 6 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:19,084 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:40:19,084 INFO L209 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] [2022-11-25 15:40:19,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 15:40:19,084 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-25 15:40:19,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:19,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1662924144, now seen corresponding path program 1 times [2022-11-25 15:40:19,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:19,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484776037] [2022-11-25 15:40:19,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:19,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:19,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:19,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484776037] [2022-11-25 15:40:19,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484776037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:19,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:19,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 15:40:19,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262429827] [2022-11-25 15:40:19,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:19,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:40:19,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:19,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:40:19,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:40:20,777 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 368 [2022-11-25 15:40:20,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 316 transitions, 3361 flow. Second operand has 9 states, 9 states have (on average 221.44444444444446) internal successors, (1993), 9 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:20,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:40:20,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 368 [2022-11-25 15:40:20,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:40:23,110 INFO L130 PetriNetUnfolder]: 8254/14103 cut-off events. [2022-11-25 15:40:23,110 INFO L131 PetriNetUnfolder]: For 63602/64930 co-relation queries the response was YES. [2022-11-25 15:40:23,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61316 conditions, 14103 events. 8254/14103 cut-off events. For 63602/64930 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 95073 event pairs, 682 based on Foata normal form. 915/14025 useless extension candidates. Maximal degree in co-relation 61299. Up to 7616 conditions per place. [2022-11-25 15:40:23,248 INFO L137 encePairwiseOnDemand]: 361/368 looper letters, 367 selfloop transitions, 12 changer transitions 0/418 dead transitions. [2022-11-25 15:40:23,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 418 transitions, 5217 flow [2022-11-25 15:40:23,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:40:23,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 15:40:23,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1809 transitions. [2022-11-25 15:40:23,253 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6144701086956522 [2022-11-25 15:40:23,254 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1809 transitions. [2022-11-25 15:40:23,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1809 transitions. [2022-11-25 15:40:23,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:40:23,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1809 transitions. [2022-11-25 15:40:23,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 226.125) internal successors, (1809), 8 states have internal predecessors, (1809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:23,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 368.0) internal successors, (3312), 9 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:23,266 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 368.0) internal successors, (3312), 9 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:23,266 INFO L175 Difference]: Start difference. First operand has 103 places, 316 transitions, 3361 flow. Second operand 8 states and 1809 transitions. [2022-11-25 15:40:23,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 418 transitions, 5217 flow [2022-11-25 15:40:23,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 418 transitions, 5167 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:40:23,401 INFO L231 Difference]: Finished difference. Result has 108 places, 315 transitions, 3331 flow [2022-11-25 15:40:23,401 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=3307, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3331, PETRI_PLACES=108, PETRI_TRANSITIONS=315} [2022-11-25 15:40:23,402 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2022-11-25 15:40:23,402 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 315 transitions, 3331 flow [2022-11-25 15:40:23,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 221.44444444444446) internal successors, (1993), 9 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:23,403 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:40:23,403 INFO L209 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] [2022-11-25 15:40:23,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 15:40:23,404 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-25 15:40:23,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:23,404 INFO L85 PathProgramCache]: Analyzing trace with hash -2000869450, now seen corresponding path program 1 times [2022-11-25 15:40:23,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:23,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408168902] [2022-11-25 15:40:23,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:23,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:23,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:23,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:23,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408168902] [2022-11-25 15:40:23,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408168902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:23,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:23,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:40:23,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982553751] [2022-11-25 15:40:23,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:23,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:40:23,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:23,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:40:23,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:40:24,525 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 368 [2022-11-25 15:40:24,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 315 transitions, 3331 flow. Second operand has 6 states, 6 states have (on average 224.83333333333334) internal successors, (1349), 6 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:24,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:40:24,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 368 [2022-11-25 15:40:24,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:40:27,429 INFO L130 PetriNetUnfolder]: 11445/18128 cut-off events. [2022-11-25 15:40:27,429 INFO L131 PetriNetUnfolder]: For 109171/110595 co-relation queries the response was YES. [2022-11-25 15:40:27,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80252 conditions, 18128 events. 11445/18128 cut-off events. For 109171/110595 co-relation queries the response was YES. Maximal size of possible extension queue 588. Compared 113803 event pairs, 1492 based on Foata normal form. 442/17387 useless extension candidates. Maximal degree in co-relation 80235. Up to 12234 conditions per place. [2022-11-25 15:40:27,589 INFO L137 encePairwiseOnDemand]: 359/368 looper letters, 280 selfloop transitions, 149 changer transitions 0/471 dead transitions. [2022-11-25 15:40:27,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 471 transitions, 5921 flow [2022-11-25 15:40:27,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:40:27,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 15:40:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2022-11-25 15:40:27,593 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6272644927536232 [2022-11-25 15:40:27,593 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1385 transitions. [2022-11-25 15:40:27,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1385 transitions. [2022-11-25 15:40:27,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:40:27,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1385 transitions. [2022-11-25 15:40:27,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.83333333333334) internal successors, (1385), 6 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:27,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:27,602 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:27,602 INFO L175 Difference]: Start difference. First operand has 108 places, 315 transitions, 3331 flow. Second operand 6 states and 1385 transitions. [2022-11-25 15:40:27,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 471 transitions, 5921 flow [2022-11-25 15:40:27,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 471 transitions, 5899 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-25 15:40:27,693 INFO L231 Difference]: Finished difference. Result has 112 places, 463 transitions, 5699 flow [2022-11-25 15:40:27,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=3309, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5699, PETRI_PLACES=112, PETRI_TRANSITIONS=463} [2022-11-25 15:40:27,694 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 12 predicate places. [2022-11-25 15:40:27,694 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 463 transitions, 5699 flow [2022-11-25 15:40:27,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.83333333333334) internal successors, (1349), 6 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:27,696 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:40:27,696 INFO L209 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] [2022-11-25 15:40:27,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 15:40:27,696 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-25 15:40:27,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:27,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1887156061, now seen corresponding path program 1 times [2022-11-25 15:40:27,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:27,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449704100] [2022-11-25 15:40:27,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:27,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:28,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:28,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:28,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449704100] [2022-11-25 15:40:28,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449704100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:28,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:28,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 15:40:28,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364061151] [2022-11-25 15:40:28,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:28,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:40:28,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:28,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:40:28,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:40:29,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 368 [2022-11-25 15:40:29,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 463 transitions, 5699 flow. Second operand has 9 states, 9 states have (on average 221.66666666666666) internal successors, (1995), 9 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:29,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:40:29,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 368 [2022-11-25 15:40:29,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:40:32,654 INFO L130 PetriNetUnfolder]: 11359/18134 cut-off events. [2022-11-25 15:40:32,654 INFO L131 PetriNetUnfolder]: For 139440/140811 co-relation queries the response was YES. [2022-11-25 15:40:32,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90689 conditions, 18134 events. 11359/18134 cut-off events. For 139440/140811 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 114694 event pairs, 1043 based on Foata normal form. 531/17591 useless extension candidates. Maximal degree in co-relation 90668. Up to 10704 conditions per place. [2022-11-25 15:40:32,906 INFO L137 encePairwiseOnDemand]: 361/368 looper letters, 487 selfloop transitions, 12 changer transitions 0/541 dead transitions. [2022-11-25 15:40:32,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 541 transitions, 7667 flow [2022-11-25 15:40:32,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:40:32,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 15:40:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1805 transitions. [2022-11-25 15:40:32,921 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6131114130434783 [2022-11-25 15:40:32,921 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1805 transitions. [2022-11-25 15:40:32,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1805 transitions. [2022-11-25 15:40:32,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:40:32,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1805 transitions. [2022-11-25 15:40:32,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 225.625) internal successors, (1805), 8 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:32,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 368.0) internal successors, (3312), 9 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:32,937 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 368.0) internal successors, (3312), 9 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:32,937 INFO L175 Difference]: Start difference. First operand has 112 places, 463 transitions, 5699 flow. Second operand 8 states and 1805 transitions. [2022-11-25 15:40:32,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 541 transitions, 7667 flow [2022-11-25 15:40:33,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 541 transitions, 7341 flow, removed 144 selfloop flow, removed 1 redundant places. [2022-11-25 15:40:33,187 INFO L231 Difference]: Finished difference. Result has 117 places, 462 transitions, 5393 flow [2022-11-25 15:40:33,188 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=5369, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5393, PETRI_PLACES=117, PETRI_TRANSITIONS=462} [2022-11-25 15:40:33,189 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 17 predicate places. [2022-11-25 15:40:33,189 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 462 transitions, 5393 flow [2022-11-25 15:40:33,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 221.66666666666666) internal successors, (1995), 9 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:33,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:40:33,193 INFO L209 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] [2022-11-25 15:40:33,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 15:40:33,194 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-25 15:40:33,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:33,194 INFO L85 PathProgramCache]: Analyzing trace with hash -43678020, now seen corresponding path program 1 times [2022-11-25 15:40:33,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:33,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059167539] [2022-11-25 15:40:33,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:33,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:33,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:33,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:33,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059167539] [2022-11-25 15:40:33,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059167539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:33,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:33,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:40:33,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972429650] [2022-11-25 15:40:33,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:33,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:40:33,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:33,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:40:33,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:40:34,396 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 368 [2022-11-25 15:40:34,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 462 transitions, 5393 flow. Second operand has 6 states, 6 states have (on average 225.16666666666666) internal successors, (1351), 6 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:34,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:40:34,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 368 [2022-11-25 15:40:34,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:40:37,596 INFO L130 PetriNetUnfolder]: 12407/19480 cut-off events. [2022-11-25 15:40:37,596 INFO L131 PetriNetUnfolder]: For 153468/155044 co-relation queries the response was YES. [2022-11-25 15:40:37,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94600 conditions, 19480 events. 12407/19480 cut-off events. For 153468/155044 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 121147 event pairs, 1459 based on Foata normal form. 488/18889 useless extension candidates. Maximal degree in co-relation 94579. Up to 13189 conditions per place. [2022-11-25 15:40:37,805 INFO L137 encePairwiseOnDemand]: 360/368 looper letters, 422 selfloop transitions, 149 changer transitions 0/616 dead transitions. [2022-11-25 15:40:37,805 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 616 transitions, 8429 flow [2022-11-25 15:40:37,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:40:37,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 15:40:37,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1379 transitions. [2022-11-25 15:40:37,811 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6245471014492754 [2022-11-25 15:40:37,811 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1379 transitions. [2022-11-25 15:40:37,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1379 transitions. [2022-11-25 15:40:37,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:40:37,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1379 transitions. [2022-11-25 15:40:37,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:37,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:37,828 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:37,828 INFO L175 Difference]: Start difference. First operand has 117 places, 462 transitions, 5393 flow. Second operand 6 states and 1379 transitions. [2022-11-25 15:40:37,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 616 transitions, 8429 flow [2022-11-25 15:40:37,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 616 transitions, 8407 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-25 15:40:37,980 INFO L231 Difference]: Finished difference. Result has 121 places, 610 transitions, 7929 flow [2022-11-25 15:40:37,981 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=5371, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7929, PETRI_PLACES=121, PETRI_TRANSITIONS=610} [2022-11-25 15:40:37,981 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 21 predicate places. [2022-11-25 15:40:37,981 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 610 transitions, 7929 flow [2022-11-25 15:40:37,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 225.16666666666666) internal successors, (1351), 6 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:37,982 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:40:37,982 INFO L209 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] [2022-11-25 15:40:37,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 15:40:37,982 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-25 15:40:37,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:37,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1353841385, now seen corresponding path program 1 times [2022-11-25 15:40:37,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:37,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597657762] [2022-11-25 15:40:37,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:37,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:38,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:38,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:38,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597657762] [2022-11-25 15:40:38,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597657762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:38,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:38,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 15:40:38,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889918530] [2022-11-25 15:40:38,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:38,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:40:38,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:38,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:40:38,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:40:39,896 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 368 [2022-11-25 15:40:39,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 610 transitions, 7929 flow. Second operand has 9 states, 9 states have (on average 221.88888888888889) internal successors, (1997), 9 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:39,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:40:39,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 368 [2022-11-25 15:40:39,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:40:43,687 INFO L130 PetriNetUnfolder]: 12334/19397 cut-off events. [2022-11-25 15:40:43,687 INFO L131 PetriNetUnfolder]: For 173997/175584 co-relation queries the response was YES. [2022-11-25 15:40:43,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100278 conditions, 19397 events. 12334/19397 cut-off events. For 173997/175584 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 120685 event pairs, 1219 based on Foata normal form. 531/18882 useless extension candidates. Maximal degree in co-relation 100253. Up to 11661 conditions per place. [2022-11-25 15:40:43,869 INFO L137 encePairwiseOnDemand]: 361/368 looper letters, 607 selfloop transitions, 12 changer transitions 0/664 dead transitions. [2022-11-25 15:40:43,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 664 transitions, 9913 flow [2022-11-25 15:40:43,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:40:43,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 15:40:43,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1801 transitions. [2022-11-25 15:40:43,877 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6117527173913043 [2022-11-25 15:40:43,877 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1801 transitions. [2022-11-25 15:40:43,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1801 transitions. [2022-11-25 15:40:43,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:40:43,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1801 transitions. [2022-11-25 15:40:43,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 225.125) internal successors, (1801), 8 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:43,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 368.0) internal successors, (3312), 9 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:43,890 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 368.0) internal successors, (3312), 9 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:43,890 INFO L175 Difference]: Start difference. First operand has 121 places, 610 transitions, 7929 flow. Second operand 8 states and 1801 transitions. [2022-11-25 15:40:43,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 664 transitions, 9913 flow [2022-11-25 15:40:44,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 664 transitions, 9779 flow, removed 48 selfloop flow, removed 1 redundant places. [2022-11-25 15:40:44,143 INFO L231 Difference]: Finished difference. Result has 126 places, 609 transitions, 7815 flow [2022-11-25 15:40:44,144 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=7791, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=597, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7815, PETRI_PLACES=126, PETRI_TRANSITIONS=609} [2022-11-25 15:40:44,144 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 26 predicate places. [2022-11-25 15:40:44,144 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 609 transitions, 7815 flow [2022-11-25 15:40:44,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 221.88888888888889) internal successors, (1997), 9 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:44,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:40:44,145 INFO L209 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] [2022-11-25 15:40:44,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 15:40:44,146 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-25 15:40:44,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:44,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1260369160, now seen corresponding path program 1 times [2022-11-25 15:40:44,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:44,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67788215] [2022-11-25 15:40:44,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:44,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:44,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:44,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:44,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67788215] [2022-11-25 15:40:44,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67788215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:44,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:44,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:40:44,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2907285] [2022-11-25 15:40:44,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:44,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:40:44,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:44,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:40:44,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:40:45,216 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 368 [2022-11-25 15:40:45,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 609 transitions, 7815 flow. Second operand has 6 states, 6 states have (on average 225.5) internal successors, (1353), 6 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:45,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:40:45,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 368 [2022-11-25 15:40:45,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:40:49,057 INFO L130 PetriNetUnfolder]: 12600/19677 cut-off events. [2022-11-25 15:40:49,058 INFO L131 PetriNetUnfolder]: For 186004/187658 co-relation queries the response was YES. [2022-11-25 15:40:49,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101701 conditions, 19677 events. 12600/19677 cut-off events. For 186004/187658 co-relation queries the response was YES. Maximal size of possible extension queue 585. Compared 121277 event pairs, 1456 based on Foata normal form. 507/19197 useless extension candidates. Maximal degree in co-relation 101676. Up to 13458 conditions per place. [2022-11-25 15:40:49,214 INFO L137 encePairwiseOnDemand]: 361/368 looper letters, 416 selfloop transitions, 101 changer transitions 148/713 dead transitions. [2022-11-25 15:40:49,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 713 transitions, 10633 flow [2022-11-25 15:40:49,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:40:49,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 15:40:49,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1373 transitions. [2022-11-25 15:40:49,219 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6218297101449275 [2022-11-25 15:40:49,219 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1373 transitions. [2022-11-25 15:40:49,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1373 transitions. [2022-11-25 15:40:49,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:40:49,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1373 transitions. [2022-11-25 15:40:49,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.83333333333334) internal successors, (1373), 6 states have internal predecessors, (1373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:49,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:49,229 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:49,229 INFO L175 Difference]: Start difference. First operand has 126 places, 609 transitions, 7815 flow. Second operand 6 states and 1373 transitions. [2022-11-25 15:40:49,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 713 transitions, 10633 flow [2022-11-25 15:40:49,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 713 transitions, 10611 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-25 15:40:49,448 INFO L231 Difference]: Finished difference. Result has 130 places, 561 transitions, 7467 flow [2022-11-25 15:40:49,449 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=7793, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7467, PETRI_PLACES=130, PETRI_TRANSITIONS=561} [2022-11-25 15:40:49,450 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 30 predicate places. [2022-11-25 15:40:49,450 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 561 transitions, 7467 flow [2022-11-25 15:40:49,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 225.5) internal successors, (1353), 6 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:49,451 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:40:49,451 INFO L209 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] [2022-11-25 15:40:49,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 15:40:49,452 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-25 15:40:49,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:49,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1893298599, now seen corresponding path program 1 times [2022-11-25 15:40:49,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:49,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270130565] [2022-11-25 15:40:49,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:49,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:50,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:40:50,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:50,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270130565] [2022-11-25 15:40:50,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270130565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:50,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:50,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 15:40:50,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150493005] [2022-11-25 15:40:50,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:50,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:40:50,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:50,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:40:50,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:40:51,533 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 368 [2022-11-25 15:40:51,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 561 transitions, 7467 flow. Second operand has 9 states, 9 states have (on average 211.11111111111111) internal successors, (1900), 9 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:51,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:40:51,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 368 [2022-11-25 15:40:51,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:40:55,243 INFO L130 PetriNetUnfolder]: 10932/17833 cut-off events. [2022-11-25 15:40:55,243 INFO L131 PetriNetUnfolder]: For 164328/165431 co-relation queries the response was YES. [2022-11-25 15:40:55,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92158 conditions, 17833 events. 10932/17833 cut-off events. For 164328/165431 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 116365 event pairs, 1179 based on Foata normal form. 360/17346 useless extension candidates. Maximal degree in co-relation 92129. Up to 11501 conditions per place. [2022-11-25 15:40:55,347 INFO L137 encePairwiseOnDemand]: 361/368 looper letters, 0 selfloop transitions, 0 changer transitions 567/567 dead transitions. [2022-11-25 15:40:55,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 567 transitions, 8515 flow [2022-11-25 15:40:55,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:40:55,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 15:40:55,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1709 transitions. [2022-11-25 15:40:55,353 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5805027173913043 [2022-11-25 15:40:55,353 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1709 transitions. [2022-11-25 15:40:55,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1709 transitions. [2022-11-25 15:40:55,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:40:55,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1709 transitions. [2022-11-25 15:40:55,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 213.625) internal successors, (1709), 8 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:55,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 368.0) internal successors, (3312), 9 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:55,364 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 368.0) internal successors, (3312), 9 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:55,364 INFO L175 Difference]: Start difference. First operand has 130 places, 561 transitions, 7467 flow. Second operand 8 states and 1709 transitions. [2022-11-25 15:40:55,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 567 transitions, 8515 flow [2022-11-25 15:40:55,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 567 transitions, 8441 flow, removed 24 selfloop flow, removed 1 redundant places. [2022-11-25 15:40:55,681 INFO L231 Difference]: Finished difference. Result has 135 places, 0 transitions, 0 flow [2022-11-25 15:40:55,682 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=7389, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=135, PETRI_TRANSITIONS=0} [2022-11-25 15:40:55,682 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 35 predicate places. [2022-11-25 15:40:55,683 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 0 transitions, 0 flow [2022-11-25 15:40:55,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 211.11111111111111) internal successors, (1900), 9 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:40:55,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2022-11-25 15:40:55,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2022-11-25 15:40:55,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2022-11-25 15:40:55,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2022-11-25 15:40:55,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2022-11-25 15:40:55,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 38 remaining) [2022-11-25 15:40:55,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 38 remaining) [2022-11-25 15:40:55,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 38 remaining) [2022-11-25 15:40:55,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 38 remaining) [2022-11-25 15:40:55,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 38 remaining) [2022-11-25 15:40:55,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2022-11-25 15:40:55,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2022-11-25 15:40:55,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2022-11-25 15:40:55,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2022-11-25 15:40:55,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2022-11-25 15:40:55,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2022-11-25 15:40:55,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2022-11-25 15:40:55,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2022-11-25 15:40:55,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 38 remaining) [2022-11-25 15:40:55,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2022-11-25 15:40:55,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2022-11-25 15:40:55,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2022-11-25 15:40:55,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2022-11-25 15:40:55,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2022-11-25 15:40:55,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2022-11-25 15:40:55,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 38 remaining) [2022-11-25 15:40:55,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 38 remaining) [2022-11-25 15:40:55,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 38 remaining) [2022-11-25 15:40:55,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 38 remaining) [2022-11-25 15:40:55,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2022-11-25 15:40:55,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2022-11-25 15:40:55,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2022-11-25 15:40:55,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2022-11-25 15:40:55,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2022-11-25 15:40:55,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2022-11-25 15:40:55,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2022-11-25 15:40:55,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2022-11-25 15:40:55,694 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2022-11-25 15:40:55,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 15:40:55,694 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:40:55,701 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 15:40:55,701 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:40:55,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:40:55 BasicIcfg [2022-11-25 15:40:55,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:40:55,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:40:55,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:40:55,706 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:40:55,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:39:48" (3/4) ... [2022-11-25 15:40:55,709 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 15:40:55,716 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2022-11-25 15:40:55,716 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-25 15:40:55,716 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-25 15:40:55,716 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-25 15:40:55,721 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-25 15:40:55,721 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 15:40:55,721 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 15:40:55,721 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:40:55,753 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:40:55,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:40:55,754 INFO L158 Benchmark]: Toolchain (without parser) took 69174.13ms. Allocated memory was 186.6MB in the beginning and 8.1GB in the end (delta: 7.9GB). Free memory was 141.1MB in the beginning and 6.9GB in the end (delta: -6.8GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-11-25 15:40:55,754 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 186.6MB. Free memory is still 156.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:40:55,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 913.08ms. Allocated memory is still 186.6MB. Free memory was 141.1MB in the beginning and 106.8MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-25 15:40:55,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.43ms. Allocated memory is still 186.6MB. Free memory was 106.8MB in the beginning and 104.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:40:55,755 INFO L158 Benchmark]: Boogie Preprocessor took 102.68ms. Allocated memory is still 186.6MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:40:55,755 INFO L158 Benchmark]: RCFGBuilder took 943.46ms. Allocated memory was 186.6MB in the beginning and 243.3MB in the end (delta: 56.6MB). Free memory was 102.4MB in the beginning and 208.3MB in the end (delta: -106.0MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2022-11-25 15:40:55,756 INFO L158 Benchmark]: TraceAbstraction took 67060.95ms. Allocated memory was 243.3MB in the beginning and 8.1GB in the end (delta: 7.9GB). Free memory was 208.3MB in the beginning and 6.9GB in the end (delta: -6.7GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2022-11-25 15:40:55,756 INFO L158 Benchmark]: Witness Printer took 47.66ms. Allocated memory is still 8.1GB. Free memory was 6.9GB in the beginning and 6.9GB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:40:55,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 186.6MB. Free memory is still 156.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 913.08ms. Allocated memory is still 186.6MB. Free memory was 141.1MB in the beginning and 106.8MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.43ms. Allocated memory is still 186.6MB. Free memory was 106.8MB in the beginning and 104.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.68ms. Allocated memory is still 186.6MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 943.46ms. Allocated memory was 186.6MB in the beginning and 243.3MB in the end (delta: 56.6MB). Free memory was 102.4MB in the beginning and 208.3MB in the end (delta: -106.0MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * TraceAbstraction took 67060.95ms. Allocated memory was 243.3MB in the beginning and 8.1GB in the end (delta: 7.9GB). Free memory was 208.3MB in the beginning and 6.9GB in the end (delta: -6.7GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Witness Printer took 47.66ms. Allocated memory is still 8.1GB. Free memory was 6.9GB in the beginning and 6.9GB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.8s, 182 PlacesBefore, 100 PlacesAfterwards, 168 TransitionsBefore, 86 TransitionsAfterwards, 4608 CoEnabledTransitionPairs, 5 FixpointIterations, 22 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 94 TotalNumberOfCompositions, 20778 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10900, independent: 10376, independent conditional: 0, independent unconditional: 10376, dependent: 523, dependent conditional: 0, dependent unconditional: 523, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3238, independent: 3034, independent conditional: 0, independent unconditional: 3034, dependent: 203, dependent conditional: 0, dependent unconditional: 203, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3238, independent: 2667, independent conditional: 0, independent unconditional: 2667, dependent: 571, dependent conditional: 0, dependent unconditional: 571, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 571, independent: 367, independent conditional: 0, independent unconditional: 367, dependent: 203, dependent conditional: 0, dependent unconditional: 203, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9818, independent: 855, independent conditional: 0, independent unconditional: 855, dependent: 8893, dependent conditional: 0, dependent unconditional: 8893, unknown: 70, unknown conditional: 0, unknown unconditional: 70] ], Cache Queries: [ total: 10900, independent: 7342, independent conditional: 0, independent unconditional: 7342, dependent: 320, dependent conditional: 0, dependent unconditional: 320, unknown: 3238, unknown conditional: 0, unknown unconditional: 3238] , Statistics on independence cache: Total cache size (in pairs): 1000, Positive cache size: 919, Positive conditional cache size: 0, Positive unconditional cache size: 919, Negative cache size: 81, Negative conditional cache size: 0, Negative unconditional cache size: 81, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1148]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1153]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1154]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1155]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1156]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1163]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 317 locations, 38 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 66.7s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 45.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4794 SdHoareTripleChecker+Valid, 14.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3120 mSDsluCounter, 1508 SdHoareTripleChecker+Invalid, 12.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1132 mSDsCounter, 2442 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13244 IncrementalHoareTripleChecker+Invalid, 15686 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2442 mSolverCounterUnsat, 376 mSDtfsCounter, 13244 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7929occurred in iteration=10, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 383 NumberOfCodeBlocks, 383 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 370 ConstructedInterpolants, 0 QuantifiedInterpolants, 2528 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 15:40:55,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2499564b-5042-4670-9c85-b26515854681/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE