./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc --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 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b --- 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-5e519f3 [2022-11-02 20:34:03,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:34:03,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:34:03,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:34:03,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:34:03,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:34:03,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:34:03,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:34:03,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:34:03,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:34:03,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:34:03,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:34:03,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:34:03,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:34:03,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:34:03,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:34:03,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:34:03,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:34:03,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:34:03,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:34:03,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:34:03,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:34:03,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:34:03,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:34:03,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:34:03,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:34:03,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:34:03,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:34:03,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:34:03,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:34:03,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:34:03,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:34:03,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:34:03,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:34:03,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:34:03,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:34:03,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:34:03,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:34:03,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:34:03,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:34:03,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:34:03,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:34:03,455 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:34:03,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:34:03,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:34:03,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:34:03,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:34:03,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:34:03,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:34:03,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:34:03,459 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:34:03,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:34:03,461 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:34:03,461 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:34:03,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:34:03,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:34:03,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:34:03,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:34:03,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:34:03,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:34:03,462 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:34:03,463 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:34:03,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:34:03,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:34:03,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:34:03,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:34:03,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:34:03,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:34:03,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:34:03,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:34:03,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:34:03,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:34:03,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:34:03,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:34:03,466 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:34:03,466 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:34:03,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:34:03,466 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b [2022-11-02 20:34:03,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:34:03,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:34:03,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:34:03,793 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:34:03,794 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:34:03,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2022-11-02 20:34:03,898 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/data/0d046b124/5f8e568b37174597a85174f6840b7b9d/FLAGc230eee7c [2022-11-02 20:34:04,676 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:34:04,677 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2022-11-02 20:34:04,698 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/data/0d046b124/5f8e568b37174597a85174f6840b7b9d/FLAGc230eee7c [2022-11-02 20:34:04,718 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/data/0d046b124/5f8e568b37174597a85174f6840b7b9d [2022-11-02 20:34:04,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:34:04,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:34:04,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:34:04,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:34:04,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:34:04,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:34:04" (1/1) ... [2022-11-02 20:34:04,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41420b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:04, skipping insertion in model container [2022-11-02 20:34:04,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:34:04" (1/1) ... [2022-11-02 20:34:04,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:34:04,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:34:05,018 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:34:05,270 WARN L230 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_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-11-02 20:34:05,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:34:05,314 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:34:05,346 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:34:05,382 WARN L230 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_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-11-02 20:34:05,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:34:05,460 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:34:05,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:05 WrapperNode [2022-11-02 20:34:05,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:34:05,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:34:05,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:34:05,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:34:05,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:05" (1/1) ... [2022-11-02 20:34:05,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:05" (1/1) ... [2022-11-02 20:34:05,555 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 178 [2022-11-02 20:34:05,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:34:05,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:34:05,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:34:05,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:34:05,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:05" (1/1) ... [2022-11-02 20:34:05,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:05" (1/1) ... [2022-11-02 20:34:05,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:05" (1/1) ... [2022-11-02 20:34:05,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:05" (1/1) ... [2022-11-02 20:34:05,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:05" (1/1) ... [2022-11-02 20:34:05,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:05" (1/1) ... [2022-11-02 20:34:05,604 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:05" (1/1) ... [2022-11-02 20:34:05,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:05" (1/1) ... [2022-11-02 20:34:05,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:34:05,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:34:05,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:34:05,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:34:05,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:05" (1/1) ... [2022-11-02 20:34:05,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:34:05,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:34:05,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:34:05,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:34:05,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:34:05,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:34:05,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:34:05,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:34:05,698 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2022-11-02 20:34:05,698 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2022-11-02 20:34:05,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:34:05,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:34:05,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:34:05,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:34:05,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:34:05,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:34:05,699 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2022-11-02 20:34:05,699 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2022-11-02 20:34:05,701 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:34:05,839 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:34:05,841 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:34:06,309 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:34:06,527 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:34:06,527 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:34:06,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:34:06 BoogieIcfgContainer [2022-11-02 20:34:06,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:34:06,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:34:06,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:34:06,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:34:06,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:34:04" (1/3) ... [2022-11-02 20:34:06,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaca60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:34:06, skipping insertion in model container [2022-11-02 20:34:06,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:34:05" (2/3) ... [2022-11-02 20:34:06,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaca60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:34:06, skipping insertion in model container [2022-11-02 20:34:06,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:34:06" (3/3) ... [2022-11-02 20:34:06,544 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2022-11-02 20:34:06,558 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:34:06,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:34:06,571 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-02 20:34:06,571 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:34:06,690 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-02 20:34:06,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 170 transitions, 372 flow [2022-11-02 20:34:06,829 INFO L130 PetriNetUnfolder]: 2/166 cut-off events. [2022-11-02 20:34:06,829 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-02 20:34:06,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 166 events. 2/166 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 253 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2022-11-02 20:34:06,839 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 170 transitions, 372 flow [2022-11-02 20:34:06,846 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 152 transitions, 325 flow [2022-11-02 20:34:06,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:34:06,865 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;@479b2fe0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:34:06,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2022-11-02 20:34:06,874 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-11-02 20:34:06,874 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:34:06,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:06,875 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:06,876 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:06,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:06,882 INFO L85 PathProgramCache]: Analyzing trace with hash 176244933, now seen corresponding path program 1 times [2022-11-02 20:34:06,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:06,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350134125] [2022-11-02 20:34:06,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:06,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:07,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:07,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:07,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350134125] [2022-11-02 20:34:07,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350134125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:07,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:07,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:34:07,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265727412] [2022-11-02 20:34:07,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:07,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:34:07,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:07,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:34:07,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:34:07,265 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 170 [2022-11-02 20:34:07,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 152 transitions, 325 flow. Second operand has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:07,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:07,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 170 [2022-11-02 20:34:07,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:08,206 INFO L130 PetriNetUnfolder]: 1464/3236 cut-off events. [2022-11-02 20:34:08,206 INFO L131 PetriNetUnfolder]: For 613/613 co-relation queries the response was YES. [2022-11-02 20:34:08,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5760 conditions, 3236 events. 1464/3236 cut-off events. For 613/613 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 25930 event pairs, 1464 based on Foata normal form. 184/3072 useless extension candidates. Maximal degree in co-relation 5474. Up to 2168 conditions per place. [2022-11-02 20:34:08,254 INFO L137 encePairwiseOnDemand]: 142/170 looper letters, 23 selfloop transitions, 0 changer transitions 0/124 dead transitions. [2022-11-02 20:34:08,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 124 transitions, 315 flow [2022-11-02 20:34:08,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:34:08,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-02 20:34:08,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 287 transitions. [2022-11-02 20:34:08,271 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8441176470588235 [2022-11-02 20:34:08,272 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 287 transitions. [2022-11-02 20:34:08,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 287 transitions. [2022-11-02 20:34:08,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:08,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 287 transitions. [2022-11-02 20:34:08,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 143.5) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:08,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:08,287 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:08,290 INFO L175 Difference]: Start difference. First operand has 163 places, 152 transitions, 325 flow. Second operand 2 states and 287 transitions. [2022-11-02 20:34:08,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 124 transitions, 315 flow [2022-11-02 20:34:08,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 124 transitions, 302 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-02 20:34:08,301 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 256 flow [2022-11-02 20:34:08,303 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=256, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2022-11-02 20:34:08,307 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -32 predicate places. [2022-11-02 20:34:08,308 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 256 flow [2022-11-02 20:34:08,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:08,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:08,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:08,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:34:08,309 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:08,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:08,310 INFO L85 PathProgramCache]: Analyzing trace with hash -461422646, now seen corresponding path program 1 times [2022-11-02 20:34:08,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:08,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142177632] [2022-11-02 20:34:08,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:08,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:08,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:08,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:08,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142177632] [2022-11-02 20:34:08,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142177632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:08,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:08,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:34:08,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885660922] [2022-11-02 20:34:08,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:08,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:34:08,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:08,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:34:08,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:34:08,454 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 170 [2022-11-02 20:34:08,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:08,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:08,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 170 [2022-11-02 20:34:08,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:11,853 INFO L130 PetriNetUnfolder]: 9120/16487 cut-off events. [2022-11-02 20:34:11,854 INFO L131 PetriNetUnfolder]: For 343/433 co-relation queries the response was YES. [2022-11-02 20:34:11,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30236 conditions, 16487 events. 9120/16487 cut-off events. For 343/433 co-relation queries the response was YES. Maximal size of possible extension queue 791. Compared 144470 event pairs, 6247 based on Foata normal form. 0/14805 useless extension candidates. Maximal degree in co-relation 30233. Up to 10566 conditions per place. [2022-11-02 20:34:12,050 INFO L137 encePairwiseOnDemand]: 161/170 looper letters, 45 selfloop transitions, 8 changer transitions 0/146 dead transitions. [2022-11-02 20:34:12,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 146 transitions, 410 flow [2022-11-02 20:34:12,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:34:12,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:34:12,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2022-11-02 20:34:12,056 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7529411764705882 [2022-11-02 20:34:12,056 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2022-11-02 20:34:12,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2022-11-02 20:34:12,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:12,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2022-11-02 20:34:12,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:12,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:12,061 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:12,062 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 256 flow. Second operand 3 states and 384 transitions. [2022-11-02 20:34:12,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 146 transitions, 410 flow [2022-11-02 20:34:12,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 146 transitions, 410 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:34:12,066 INFO L231 Difference]: Finished difference. Result has 135 places, 131 transitions, 318 flow [2022-11-02 20:34:12,066 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=135, PETRI_TRANSITIONS=131} [2022-11-02 20:34:12,067 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -28 predicate places. [2022-11-02 20:34:12,068 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 131 transitions, 318 flow [2022-11-02 20:34:12,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:12,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:12,068 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:12,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:34:12,069 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:12,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:12,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2058110516, now seen corresponding path program 1 times [2022-11-02 20:34:12,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:12,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6585213] [2022-11-02 20:34:12,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:12,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:12,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:12,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6585213] [2022-11-02 20:34:12,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6585213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:12,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:12,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:34:12,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492356956] [2022-11-02 20:34:12,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:12,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:34:12,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:12,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:34:12,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:34:12,370 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 170 [2022-11-02 20:34:12,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 131 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:12,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:12,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 170 [2022-11-02 20:34:12,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:13,304 INFO L130 PetriNetUnfolder]: 1656/4810 cut-off events. [2022-11-02 20:34:13,305 INFO L131 PetriNetUnfolder]: For 1002/1002 co-relation queries the response was YES. [2022-11-02 20:34:13,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9305 conditions, 4810 events. 1656/4810 cut-off events. For 1002/1002 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 44140 event pairs, 661 based on Foata normal form. 342/4822 useless extension candidates. Maximal degree in co-relation 9300. Up to 1449 conditions per place. [2022-11-02 20:34:13,367 INFO L137 encePairwiseOnDemand]: 164/170 looper letters, 39 selfloop transitions, 4 changer transitions 0/145 dead transitions. [2022-11-02 20:34:13,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 145 transitions, 442 flow [2022-11-02 20:34:13,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:34:13,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:34:13,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2022-11-02 20:34:13,370 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7725490196078432 [2022-11-02 20:34:13,371 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2022-11-02 20:34:13,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2022-11-02 20:34:13,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:13,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2022-11-02 20:34:13,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:13,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:13,377 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:13,377 INFO L175 Difference]: Start difference. First operand has 135 places, 131 transitions, 318 flow. Second operand 3 states and 394 transitions. [2022-11-02 20:34:13,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 145 transitions, 442 flow [2022-11-02 20:34:13,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 145 transitions, 428 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:34:13,402 INFO L231 Difference]: Finished difference. Result has 136 places, 130 transitions, 314 flow [2022-11-02 20:34:13,403 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=136, PETRI_TRANSITIONS=130} [2022-11-02 20:34:13,404 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -27 predicate places. [2022-11-02 20:34:13,404 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 130 transitions, 314 flow [2022-11-02 20:34:13,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:13,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:13,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:13,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:34:13,406 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:13,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:13,406 INFO L85 PathProgramCache]: Analyzing trace with hash -467603696, now seen corresponding path program 2 times [2022-11-02 20:34:13,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:13,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567027301] [2022-11-02 20:34:13,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:13,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:13,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:13,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:13,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567027301] [2022-11-02 20:34:13,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567027301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:13,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:13,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:34:13,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367288737] [2022-11-02 20:34:13,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:13,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:34:13,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:13,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:34:13,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:34:13,693 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 170 [2022-11-02 20:34:13,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 130 transitions, 314 flow. Second operand has 5 states, 5 states have (on average 117.4) internal successors, (587), 5 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:13,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:13,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 170 [2022-11-02 20:34:13,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:14,517 INFO L130 PetriNetUnfolder]: 1189/3499 cut-off events. [2022-11-02 20:34:14,517 INFO L131 PetriNetUnfolder]: For 1535/1538 co-relation queries the response was YES. [2022-11-02 20:34:14,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7137 conditions, 3499 events. 1189/3499 cut-off events. For 1535/1538 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 31164 event pairs, 419 based on Foata normal form. 87/3322 useless extension candidates. Maximal degree in co-relation 7131. Up to 903 conditions per place. [2022-11-02 20:34:14,553 INFO L137 encePairwiseOnDemand]: 160/170 looper letters, 53 selfloop transitions, 12 changer transitions 1/166 dead transitions. [2022-11-02 20:34:14,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 166 transitions, 559 flow [2022-11-02 20:34:14,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:34:14,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 20:34:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 643 transitions. [2022-11-02 20:34:14,556 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7564705882352941 [2022-11-02 20:34:14,556 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 643 transitions. [2022-11-02 20:34:14,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 643 transitions. [2022-11-02 20:34:14,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:14,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 643 transitions. [2022-11-02 20:34:14,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.6) internal successors, (643), 5 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:14,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:14,564 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:14,565 INFO L175 Difference]: Start difference. First operand has 136 places, 130 transitions, 314 flow. Second operand 5 states and 643 transitions. [2022-11-02 20:34:14,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 166 transitions, 559 flow [2022-11-02 20:34:14,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 166 transitions, 547 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:34:14,577 INFO L231 Difference]: Finished difference. Result has 140 places, 135 transitions, 363 flow [2022-11-02 20:34:14,577 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=363, PETRI_PLACES=140, PETRI_TRANSITIONS=135} [2022-11-02 20:34:14,579 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -23 predicate places. [2022-11-02 20:34:14,579 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 135 transitions, 363 flow [2022-11-02 20:34:14,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.4) internal successors, (587), 5 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:14,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:14,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:14,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:34:14,581 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:14,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:14,581 INFO L85 PathProgramCache]: Analyzing trace with hash 830927776, now seen corresponding path program 1 times [2022-11-02 20:34:14,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:14,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722659279] [2022-11-02 20:34:14,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:14,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:14,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:14,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:14,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722659279] [2022-11-02 20:34:14,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722659279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:14,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:14,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:34:14,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350404902] [2022-11-02 20:34:14,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:14,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:34:14,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:14,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:34:14,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:34:14,656 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 170 [2022-11-02 20:34:14,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 135 transitions, 363 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:14,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:14,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 170 [2022-11-02 20:34:14,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:15,730 INFO L130 PetriNetUnfolder]: 2870/6097 cut-off events. [2022-11-02 20:34:15,730 INFO L131 PetriNetUnfolder]: For 2471/2523 co-relation queries the response was YES. [2022-11-02 20:34:15,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13632 conditions, 6097 events. 2870/6097 cut-off events. For 2471/2523 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 53526 event pairs, 1684 based on Foata normal form. 11/5616 useless extension candidates. Maximal degree in co-relation 13624. Up to 3906 conditions per place. [2022-11-02 20:34:15,924 INFO L137 encePairwiseOnDemand]: 162/170 looper letters, 50 selfloop transitions, 7 changer transitions 0/150 dead transitions. [2022-11-02 20:34:15,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 150 transitions, 523 flow [2022-11-02 20:34:15,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:34:15,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:34:15,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2022-11-02 20:34:15,927 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7392156862745098 [2022-11-02 20:34:15,927 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 377 transitions. [2022-11-02 20:34:15,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 377 transitions. [2022-11-02 20:34:15,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:15,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 377 transitions. [2022-11-02 20:34:15,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:15,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:15,931 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:15,932 INFO L175 Difference]: Start difference. First operand has 140 places, 135 transitions, 363 flow. Second operand 3 states and 377 transitions. [2022-11-02 20:34:15,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 150 transitions, 523 flow [2022-11-02 20:34:15,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 150 transitions, 512 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-02 20:34:15,937 INFO L231 Difference]: Finished difference. Result has 142 places, 141 transitions, 414 flow [2022-11-02 20:34:15,938 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=414, PETRI_PLACES=142, PETRI_TRANSITIONS=141} [2022-11-02 20:34:15,939 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -21 predicate places. [2022-11-02 20:34:15,939 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 141 transitions, 414 flow [2022-11-02 20:34:15,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:15,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:15,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:15,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:34:15,940 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:15,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:15,941 INFO L85 PathProgramCache]: Analyzing trace with hash 468077500, now seen corresponding path program 1 times [2022-11-02 20:34:15,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:15,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742298973] [2022-11-02 20:34:15,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:15,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:16,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:16,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:16,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742298973] [2022-11-02 20:34:16,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742298973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:16,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:16,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:34:16,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973027434] [2022-11-02 20:34:16,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:16,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:16,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:16,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:16,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:16,390 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 170 [2022-11-02 20:34:16,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 141 transitions, 414 flow. Second operand has 6 states, 6 states have (on average 90.16666666666667) internal successors, (541), 6 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:16,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:16,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 170 [2022-11-02 20:34:16,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:20,327 INFO L130 PetriNetUnfolder]: 15375/25541 cut-off events. [2022-11-02 20:34:20,327 INFO L131 PetriNetUnfolder]: For 25817/27178 co-relation queries the response was YES. [2022-11-02 20:34:20,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68456 conditions, 25541 events. 15375/25541 cut-off events. For 25817/27178 co-relation queries the response was YES. Maximal size of possible extension queue 1070. Compared 205154 event pairs, 1827 based on Foata normal form. 66/23815 useless extension candidates. Maximal degree in co-relation 68447. Up to 12333 conditions per place. [2022-11-02 20:34:20,559 INFO L137 encePairwiseOnDemand]: 165/170 looper letters, 179 selfloop transitions, 4 changer transitions 0/260 dead transitions. [2022-11-02 20:34:20,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 260 transitions, 1370 flow [2022-11-02 20:34:20,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:34:20,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:34:20,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 642 transitions. [2022-11-02 20:34:20,561 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6294117647058823 [2022-11-02 20:34:20,562 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 642 transitions. [2022-11-02 20:34:20,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 642 transitions. [2022-11-02 20:34:20,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:20,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 642 transitions. [2022-11-02 20:34:20,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:20,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:20,567 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:20,567 INFO L175 Difference]: Start difference. First operand has 142 places, 141 transitions, 414 flow. Second operand 6 states and 642 transitions. [2022-11-02 20:34:20,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 260 transitions, 1370 flow [2022-11-02 20:34:20,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 260 transitions, 1284 flow, removed 20 selfloop flow, removed 2 redundant places. [2022-11-02 20:34:20,589 INFO L231 Difference]: Finished difference. Result has 144 places, 140 transitions, 398 flow [2022-11-02 20:34:20,589 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=398, PETRI_PLACES=144, PETRI_TRANSITIONS=140} [2022-11-02 20:34:20,590 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -19 predicate places. [2022-11-02 20:34:20,590 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 140 transitions, 398 flow [2022-11-02 20:34:20,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.16666666666667) internal successors, (541), 6 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:20,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:20,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:20,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:34:20,591 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:20,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:20,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1690722976, now seen corresponding path program 1 times [2022-11-02 20:34:20,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:20,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738711040] [2022-11-02 20:34:20,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:20,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:20,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:20,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738711040] [2022-11-02 20:34:20,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738711040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:20,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:20,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:34:20,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660608899] [2022-11-02 20:34:20,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:20,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:34:20,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:20,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:34:20,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:34:20,761 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 170 [2022-11-02 20:34:20,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 140 transitions, 398 flow. Second operand has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:20,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:20,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 170 [2022-11-02 20:34:20,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:21,318 INFO L130 PetriNetUnfolder]: 798/2999 cut-off events. [2022-11-02 20:34:21,319 INFO L131 PetriNetUnfolder]: For 1953/1968 co-relation queries the response was YES. [2022-11-02 20:34:21,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6197 conditions, 2999 events. 798/2999 cut-off events. For 1953/1968 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 26679 event pairs, 160 based on Foata normal form. 152/2970 useless extension candidates. Maximal degree in co-relation 6188. Up to 590 conditions per place. [2022-11-02 20:34:21,353 INFO L137 encePairwiseOnDemand]: 161/170 looper letters, 73 selfloop transitions, 19 changer transitions 0/193 dead transitions. [2022-11-02 20:34:21,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 193 transitions, 790 flow [2022-11-02 20:34:21,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:34:21,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 20:34:21,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 664 transitions. [2022-11-02 20:34:21,357 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7811764705882352 [2022-11-02 20:34:21,357 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 664 transitions. [2022-11-02 20:34:21,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 664 transitions. [2022-11-02 20:34:21,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:21,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 664 transitions. [2022-11-02 20:34:21,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:21,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:21,362 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:21,363 INFO L175 Difference]: Start difference. First operand has 144 places, 140 transitions, 398 flow. Second operand 5 states and 664 transitions. [2022-11-02 20:34:21,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 193 transitions, 790 flow [2022-11-02 20:34:21,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 193 transitions, 783 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:34:21,370 INFO L231 Difference]: Finished difference. Result has 146 places, 152 transitions, 512 flow [2022-11-02 20:34:21,370 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=512, PETRI_PLACES=146, PETRI_TRANSITIONS=152} [2022-11-02 20:34:21,371 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -17 predicate places. [2022-11-02 20:34:21,371 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 152 transitions, 512 flow [2022-11-02 20:34:21,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:21,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:21,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:21,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:34:21,373 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:21,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:21,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1872501305, now seen corresponding path program 1 times [2022-11-02 20:34:21,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:21,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177502077] [2022-11-02 20:34:21,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:21,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:21,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:21,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177502077] [2022-11-02 20:34:21,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177502077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:21,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:21,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:34:21,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761464208] [2022-11-02 20:34:21,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:21,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:21,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:21,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:21,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:21,701 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 170 [2022-11-02 20:34:21,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 152 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:21,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:21,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 170 [2022-11-02 20:34:21,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:22,206 INFO L130 PetriNetUnfolder]: 804/2881 cut-off events. [2022-11-02 20:34:22,207 INFO L131 PetriNetUnfolder]: For 3181/3203 co-relation queries the response was YES. [2022-11-02 20:34:22,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6805 conditions, 2881 events. 804/2881 cut-off events. For 3181/3203 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 25417 event pairs, 341 based on Foata normal form. 21/2663 useless extension candidates. Maximal degree in co-relation 6794. Up to 968 conditions per place. [2022-11-02 20:34:22,237 INFO L137 encePairwiseOnDemand]: 160/170 looper letters, 69 selfloop transitions, 22 changer transitions 0/192 dead transitions. [2022-11-02 20:34:22,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 192 transitions, 865 flow [2022-11-02 20:34:22,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:34:22,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:34:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 769 transitions. [2022-11-02 20:34:22,240 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.753921568627451 [2022-11-02 20:34:22,240 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 769 transitions. [2022-11-02 20:34:22,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 769 transitions. [2022-11-02 20:34:22,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:22,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 769 transitions. [2022-11-02 20:34:22,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.16666666666666) internal successors, (769), 6 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:22,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:22,245 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:22,246 INFO L175 Difference]: Start difference. First operand has 146 places, 152 transitions, 512 flow. Second operand 6 states and 769 transitions. [2022-11-02 20:34:22,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 192 transitions, 865 flow [2022-11-02 20:34:22,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 192 transitions, 841 flow, removed 12 selfloop flow, removed 0 redundant places. [2022-11-02 20:34:22,254 INFO L231 Difference]: Finished difference. Result has 152 places, 158 transitions, 592 flow [2022-11-02 20:34:22,254 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=592, PETRI_PLACES=152, PETRI_TRANSITIONS=158} [2022-11-02 20:34:22,255 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -11 predicate places. [2022-11-02 20:34:22,255 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 158 transitions, 592 flow [2022-11-02 20:34:22,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:22,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:22,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:22,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:34:22,257 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:22,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:22,257 INFO L85 PathProgramCache]: Analyzing trace with hash -346170549, now seen corresponding path program 2 times [2022-11-02 20:34:22,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:22,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742677693] [2022-11-02 20:34:22,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:22,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:22,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:22,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:22,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742677693] [2022-11-02 20:34:22,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742677693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:22,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:22,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:34:22,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951547375] [2022-11-02 20:34:22,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:22,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:22,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:22,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:22,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:22,473 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 170 [2022-11-02 20:34:22,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 158 transitions, 592 flow. Second operand has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:22,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:22,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 170 [2022-11-02 20:34:22,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:22,935 INFO L130 PetriNetUnfolder]: 675/2464 cut-off events. [2022-11-02 20:34:22,935 INFO L131 PetriNetUnfolder]: For 3412/3430 co-relation queries the response was YES. [2022-11-02 20:34:22,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5951 conditions, 2464 events. 675/2464 cut-off events. For 3412/3430 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 21234 event pairs, 321 based on Foata normal form. 21/2286 useless extension candidates. Maximal degree in co-relation 5938. Up to 878 conditions per place. [2022-11-02 20:34:22,963 INFO L137 encePairwiseOnDemand]: 160/170 looper letters, 73 selfloop transitions, 26 changer transitions 0/200 dead transitions. [2022-11-02 20:34:22,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 200 transitions, 976 flow [2022-11-02 20:34:22,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:34:22,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:34:22,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 775 transitions. [2022-11-02 20:34:22,967 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7598039215686274 [2022-11-02 20:34:22,967 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 775 transitions. [2022-11-02 20:34:22,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 775 transitions. [2022-11-02 20:34:22,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:22,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 775 transitions. [2022-11-02 20:34:22,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.16666666666666) internal successors, (775), 6 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:22,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:22,973 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:22,973 INFO L175 Difference]: Start difference. First operand has 152 places, 158 transitions, 592 flow. Second operand 6 states and 775 transitions. [2022-11-02 20:34:22,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 200 transitions, 976 flow [2022-11-02 20:34:22,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 200 transitions, 930 flow, removed 6 selfloop flow, removed 3 redundant places. [2022-11-02 20:34:22,982 INFO L231 Difference]: Finished difference. Result has 156 places, 164 transitions, 678 flow [2022-11-02 20:34:22,983 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=678, PETRI_PLACES=156, PETRI_TRANSITIONS=164} [2022-11-02 20:34:22,983 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -7 predicate places. [2022-11-02 20:34:22,984 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 164 transitions, 678 flow [2022-11-02 20:34:22,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:22,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:22,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:22,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:34:22,985 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:22,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:22,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2135945965, now seen corresponding path program 1 times [2022-11-02 20:34:22,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:22,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011822037] [2022-11-02 20:34:22,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:22,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:23,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:23,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:23,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011822037] [2022-11-02 20:34:23,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011822037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:23,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:23,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:34:23,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260812220] [2022-11-02 20:34:23,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:23,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:23,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:23,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:23,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:23,543 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 170 [2022-11-02 20:34:23,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 164 transitions, 678 flow. Second operand has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:23,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:23,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 170 [2022-11-02 20:34:23,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:25,645 INFO L130 PetriNetUnfolder]: 5826/12297 cut-off events. [2022-11-02 20:34:25,645 INFO L131 PetriNetUnfolder]: For 22863/22973 co-relation queries the response was YES. [2022-11-02 20:34:25,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34963 conditions, 12297 events. 5826/12297 cut-off events. For 22863/22973 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 106366 event pairs, 3091 based on Foata normal form. 2/11712 useless extension candidates. Maximal degree in co-relation 34948. Up to 6034 conditions per place. [2022-11-02 20:34:25,755 INFO L137 encePairwiseOnDemand]: 165/170 looper letters, 194 selfloop transitions, 4 changer transitions 0/275 dead transitions. [2022-11-02 20:34:25,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 275 transitions, 1740 flow [2022-11-02 20:34:25,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:34:25,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:34:25,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 633 transitions. [2022-11-02 20:34:25,758 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6205882352941177 [2022-11-02 20:34:25,758 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 633 transitions. [2022-11-02 20:34:25,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 633 transitions. [2022-11-02 20:34:25,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:25,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 633 transitions. [2022-11-02 20:34:25,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:25,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:25,763 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:25,763 INFO L175 Difference]: Start difference. First operand has 156 places, 164 transitions, 678 flow. Second operand 6 states and 633 transitions. [2022-11-02 20:34:25,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 275 transitions, 1740 flow [2022-11-02 20:34:25,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 275 transitions, 1690 flow, removed 8 selfloop flow, removed 2 redundant places. [2022-11-02 20:34:25,790 INFO L231 Difference]: Finished difference. Result has 158 places, 163 transitions, 650 flow [2022-11-02 20:34:25,791 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=650, PETRI_PLACES=158, PETRI_TRANSITIONS=163} [2022-11-02 20:34:25,791 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -5 predicate places. [2022-11-02 20:34:25,792 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 163 transitions, 650 flow [2022-11-02 20:34:25,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:25,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:25,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:25,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:34:25,793 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:25,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:25,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1268085422, now seen corresponding path program 1 times [2022-11-02 20:34:25,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:25,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997043954] [2022-11-02 20:34:25,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:25,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:26,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:26,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:26,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997043954] [2022-11-02 20:34:26,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997043954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:26,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:26,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:34:26,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386706135] [2022-11-02 20:34:26,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:26,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:26,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:26,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:26,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:26,103 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 170 [2022-11-02 20:34:26,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 163 transitions, 650 flow. Second operand has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:26,104 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:26,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 170 [2022-11-02 20:34:26,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:26,618 INFO L130 PetriNetUnfolder]: 704/2507 cut-off events. [2022-11-02 20:34:26,619 INFO L131 PetriNetUnfolder]: For 3911/3932 co-relation queries the response was YES. [2022-11-02 20:34:26,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6202 conditions, 2507 events. 704/2507 cut-off events. For 3911/3932 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 21929 event pairs, 88 based on Foata normal form. 43/2380 useless extension candidates. Maximal degree in co-relation 6187. Up to 395 conditions per place. [2022-11-02 20:34:26,645 INFO L137 encePairwiseOnDemand]: 161/170 looper letters, 84 selfloop transitions, 33 changer transitions 0/217 dead transitions. [2022-11-02 20:34:26,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 217 transitions, 1115 flow [2022-11-02 20:34:26,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:34:26,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:34:26,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 791 transitions. [2022-11-02 20:34:26,649 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7754901960784314 [2022-11-02 20:34:26,649 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 791 transitions. [2022-11-02 20:34:26,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 791 transitions. [2022-11-02 20:34:26,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:26,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 791 transitions. [2022-11-02 20:34:26,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.83333333333334) internal successors, (791), 6 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:26,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:26,655 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:26,655 INFO L175 Difference]: Start difference. First operand has 158 places, 163 transitions, 650 flow. Second operand 6 states and 791 transitions. [2022-11-02 20:34:26,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 217 transitions, 1115 flow [2022-11-02 20:34:26,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 217 transitions, 1108 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:34:26,665 INFO L231 Difference]: Finished difference. Result has 160 places, 169 transitions, 789 flow [2022-11-02 20:34:26,665 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=789, PETRI_PLACES=160, PETRI_TRANSITIONS=169} [2022-11-02 20:34:26,666 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -3 predicate places. [2022-11-02 20:34:26,666 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 169 transitions, 789 flow [2022-11-02 20:34:26,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:26,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:26,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:26,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:34:26,667 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:26,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:26,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2115957792, now seen corresponding path program 2 times [2022-11-02 20:34:26,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:26,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560116770] [2022-11-02 20:34:26,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:26,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:26,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:26,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:26,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560116770] [2022-11-02 20:34:26,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560116770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:26,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:26,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:34:26,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939090534] [2022-11-02 20:34:26,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:26,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:26,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:26,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:26,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:26,918 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 170 [2022-11-02 20:34:26,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 169 transitions, 789 flow. Second operand has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:26,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:26,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 170 [2022-11-02 20:34:26,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:27,393 INFO L130 PetriNetUnfolder]: 502/2094 cut-off events. [2022-11-02 20:34:27,394 INFO L131 PetriNetUnfolder]: For 4578/4603 co-relation queries the response was YES. [2022-11-02 20:34:27,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5270 conditions, 2094 events. 502/2094 cut-off events. For 4578/4603 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 17222 event pairs, 203 based on Foata normal form. 38/1969 useless extension candidates. Maximal degree in co-relation 5254. Up to 700 conditions per place. [2022-11-02 20:34:27,414 INFO L137 encePairwiseOnDemand]: 161/170 looper letters, 48 selfloop transitions, 35 changer transitions 0/177 dead transitions. [2022-11-02 20:34:27,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 177 transitions, 966 flow [2022-11-02 20:34:27,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:34:27,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:34:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 763 transitions. [2022-11-02 20:34:27,416 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7480392156862745 [2022-11-02 20:34:27,417 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 763 transitions. [2022-11-02 20:34:27,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 763 transitions. [2022-11-02 20:34:27,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:27,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 763 transitions. [2022-11-02 20:34:27,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.16666666666667) internal successors, (763), 6 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:27,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:27,422 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:27,423 INFO L175 Difference]: Start difference. First operand has 160 places, 169 transitions, 789 flow. Second operand 6 states and 763 transitions. [2022-11-02 20:34:27,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 177 transitions, 966 flow [2022-11-02 20:34:27,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 177 transitions, 899 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-11-02 20:34:27,434 INFO L231 Difference]: Finished difference. Result has 157 places, 151 transitions, 714 flow [2022-11-02 20:34:27,435 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=714, PETRI_PLACES=157, PETRI_TRANSITIONS=151} [2022-11-02 20:34:27,438 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -6 predicate places. [2022-11-02 20:34:27,439 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 151 transitions, 714 flow [2022-11-02 20:34:27,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:27,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:27,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:27,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:34:27,440 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:27,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:27,441 INFO L85 PathProgramCache]: Analyzing trace with hash -197327188, now seen corresponding path program 1 times [2022-11-02 20:34:27,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:27,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10697042] [2022-11-02 20:34:27,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:27,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:27,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:27,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:27,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10697042] [2022-11-02 20:34:27,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10697042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:27,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:27,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:34:27,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237661320] [2022-11-02 20:34:27,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:27,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:27,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:27,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:27,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:27,893 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 170 [2022-11-02 20:34:27,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 151 transitions, 714 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:27,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:27,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 170 [2022-11-02 20:34:27,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:29,555 INFO L130 PetriNetUnfolder]: 4239/9481 cut-off events. [2022-11-02 20:34:29,556 INFO L131 PetriNetUnfolder]: For 22164/22167 co-relation queries the response was YES. [2022-11-02 20:34:29,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27694 conditions, 9481 events. 4239/9481 cut-off events. For 22164/22167 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 79689 event pairs, 3498 based on Foata normal form. 0/9165 useless extension candidates. Maximal degree in co-relation 27678. Up to 6765 conditions per place. [2022-11-02 20:34:29,621 INFO L137 encePairwiseOnDemand]: 165/170 looper letters, 127 selfloop transitions, 4 changer transitions 0/202 dead transitions. [2022-11-02 20:34:29,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 202 transitions, 1426 flow [2022-11-02 20:34:29,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:34:29,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:34:29,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 608 transitions. [2022-11-02 20:34:29,625 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.596078431372549 [2022-11-02 20:34:29,625 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 608 transitions. [2022-11-02 20:34:29,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 608 transitions. [2022-11-02 20:34:29,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:29,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 608 transitions. [2022-11-02 20:34:29,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:29,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:29,631 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:29,631 INFO L175 Difference]: Start difference. First operand has 157 places, 151 transitions, 714 flow. Second operand 6 states and 608 transitions. [2022-11-02 20:34:29,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 202 transitions, 1426 flow [2022-11-02 20:34:29,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 202 transitions, 1268 flow, removed 30 selfloop flow, removed 5 redundant places. [2022-11-02 20:34:29,686 INFO L231 Difference]: Finished difference. Result has 156 places, 150 transitions, 658 flow [2022-11-02 20:34:29,686 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=658, PETRI_PLACES=156, PETRI_TRANSITIONS=150} [2022-11-02 20:34:29,687 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -7 predicate places. [2022-11-02 20:34:29,687 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 150 transitions, 658 flow [2022-11-02 20:34:29,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:29,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:34:29,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:29,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:34:29,688 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-02 20:34:29,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:29,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2055677490, now seen corresponding path program 1 times [2022-11-02 20:34:29,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:29,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105498222] [2022-11-02 20:34:29,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:29,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:34:30,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:30,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105498222] [2022-11-02 20:34:30,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105498222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:30,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:30,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:34:30,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153258213] [2022-11-02 20:34:30,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:30,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:30,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:30,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:30,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:30,299 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 170 [2022-11-02 20:34:30,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 150 transitions, 658 flow. Second operand has 6 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:30,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:34:30,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 170 [2022-11-02 20:34:30,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:34:31,807 INFO L130 PetriNetUnfolder]: 4224/9527 cut-off events. [2022-11-02 20:34:31,807 INFO L131 PetriNetUnfolder]: For 18512/18519 co-relation queries the response was YES. [2022-11-02 20:34:31,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26646 conditions, 9527 events. 4224/9527 cut-off events. For 18512/18519 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 80682 event pairs, 3696 based on Foata normal form. 21/9236 useless extension candidates. Maximal degree in co-relation 26632. Up to 7219 conditions per place. [2022-11-02 20:34:31,859 INFO L137 encePairwiseOnDemand]: 165/170 looper letters, 0 selfloop transitions, 0 changer transitions 185/185 dead transitions. [2022-11-02 20:34:31,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 185 transitions, 1144 flow [2022-11-02 20:34:31,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:34:31,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:34:31,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 599 transitions. [2022-11-02 20:34:31,862 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5872549019607843 [2022-11-02 20:34:31,862 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 599 transitions. [2022-11-02 20:34:31,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 599 transitions. [2022-11-02 20:34:31,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:34:31,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 599 transitions. [2022-11-02 20:34:31,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:31,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:31,868 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:31,868 INFO L175 Difference]: Start difference. First operand has 156 places, 150 transitions, 658 flow. Second operand 6 states and 599 transitions. [2022-11-02 20:34:31,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 185 transitions, 1144 flow [2022-11-02 20:34:31,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 185 transitions, 1137 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:34:31,893 INFO L231 Difference]: Finished difference. Result has 156 places, 0 transitions, 0 flow [2022-11-02 20:34:31,893 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=156, PETRI_TRANSITIONS=0} [2022-11-02 20:34:31,894 INFO L287 CegarLoopForPetriNet]: 163 programPoint places, -7 predicate places. [2022-11-02 20:34:31,894 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 0 transitions, 0 flow [2022-11-02 20:34:31,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:34:31,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (49 of 50 remaining) [2022-11-02 20:34:31,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2022-11-02 20:34:31,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2022-11-02 20:34:31,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2022-11-02 20:34:31,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2022-11-02 20:34:31,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2022-11-02 20:34:31,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (43 of 50 remaining) [2022-11-02 20:34:31,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2022-11-02 20:34:31,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2022-11-02 20:34:31,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2022-11-02 20:34:31,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2022-11-02 20:34:31,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2022-11-02 20:34:31,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2022-11-02 20:34:31,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 50 remaining) [2022-11-02 20:34:31,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 50 remaining) [2022-11-02 20:34:31,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 50 remaining) [2022-11-02 20:34:31,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 50 remaining) [2022-11-02 20:34:31,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2022-11-02 20:34:31,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2022-11-02 20:34:31,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2022-11-02 20:34:31,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2022-11-02 20:34:31,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2022-11-02 20:34:31,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2022-11-02 20:34:31,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2022-11-02 20:34:31,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2022-11-02 20:34:31,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2022-11-02 20:34:31,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2022-11-02 20:34:31,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2022-11-02 20:34:31,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2022-11-02 20:34:31,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2022-11-02 20:34:31,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2022-11-02 20:34:31,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2022-11-02 20:34:31,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2022-11-02 20:34:31,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2022-11-02 20:34:31,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2022-11-02 20:34:31,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2022-11-02 20:34:31,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2022-11-02 20:34:31,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2022-11-02 20:34:31,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2022-11-02 20:34:31,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2022-11-02 20:34:31,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2022-11-02 20:34:31,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2022-11-02 20:34:31,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2022-11-02 20:34:31,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2022-11-02 20:34:31,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2022-11-02 20:34:31,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2022-11-02 20:34:31,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2022-11-02 20:34:31,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2022-11-02 20:34:31,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2022-11-02 20:34:31,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2022-11-02 20:34:31,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:34:31,909 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:31,916 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:34:31,916 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:34:31,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:34:31 BasicIcfg [2022-11-02 20:34:31,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:34:31,922 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:34:31,922 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:34:31,922 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:34:31,923 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:34:06" (3/4) ... [2022-11-02 20:34:31,926 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:34:31,931 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2022-11-02 20:34:31,931 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2022-11-02 20:34:31,935 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-02 20:34:31,936 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 20:34:31,936 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:34:31,936 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:34:31,968 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:34:31,968 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:34:31,969 INFO L158 Benchmark]: Toolchain (without parser) took 27247.50ms. Allocated memory was 130.0MB in the beginning and 5.8GB in the end (delta: 5.7GB). Free memory was 94.9MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 829.3MB. Max. memory is 16.1GB. [2022-11-02 20:34:31,969 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory was 40.0MB in the beginning and 39.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:34:31,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 734.37ms. Allocated memory is still 130.0MB. Free memory was 94.7MB in the beginning and 92.3MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:34:31,970 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.83ms. Allocated memory is still 130.0MB. Free memory was 92.3MB in the beginning and 89.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:34:31,970 INFO L158 Benchmark]: Boogie Preprocessor took 52.41ms. Allocated memory is still 130.0MB. Free memory was 89.8MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:34:31,971 INFO L158 Benchmark]: RCFGBuilder took 921.06ms. Allocated memory was 130.0MB in the beginning and 165.7MB in the end (delta: 35.7MB). Free memory was 87.7MB in the beginning and 136.2MB in the end (delta: -48.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-02 20:34:31,971 INFO L158 Benchmark]: TraceAbstraction took 25385.73ms. Allocated memory was 165.7MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 135.4MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 901.2MB. Max. memory is 16.1GB. [2022-11-02 20:34:31,972 INFO L158 Benchmark]: Witness Printer took 46.59ms. Allocated memory is still 5.8GB. Free memory was 4.9GB in the beginning and 4.9GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:34:31,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory was 40.0MB in the beginning and 39.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 734.37ms. Allocated memory is still 130.0MB. Free memory was 94.7MB in the beginning and 92.3MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.83ms. Allocated memory is still 130.0MB. Free memory was 92.3MB in the beginning and 89.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.41ms. Allocated memory is still 130.0MB. Free memory was 89.8MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 921.06ms. Allocated memory was 130.0MB in the beginning and 165.7MB in the end (delta: 35.7MB). Free memory was 87.7MB in the beginning and 136.2MB in the end (delta: -48.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 25385.73ms. Allocated memory was 165.7MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 135.4MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 901.2MB. Max. memory is 16.1GB. * Witness Printer took 46.59ms. Allocated memory is still 5.8GB. Free memory was 4.9GB in the beginning and 4.9GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 751]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: 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 7 procedures, 211 locations, 50 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: 25.2s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 20.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 519 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 519 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 835 mSDsCounter, 160 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1925 IncrementalHoareTripleChecker+Invalid, 2085 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 160 mSolverCounterUnsat, 78 mSDtfsCounter, 1925 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=789occurred in iteration=11, InterpolantAutomatonStates: 69, 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, 3.7s InterpolantComputationTime, 802 NumberOfCodeBlocks, 802 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 788 ConstructedInterpolants, 0 QuantifiedInterpolants, 2330 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 20:34:32,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73a4c264-e98e-4a92-a98d-3aca8e13a8e7/bin/uautomizer-Dbtcem3rbc/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