./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro --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 0b48bde914fb7ebeda4cbd6fd329f7fd1281e3c3e233b6f5149c7b66a2f709ab --- 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-8393723 [2022-11-18 21:01:13,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:01:13,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:01:13,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:01:13,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:01:13,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:01:13,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:01:13,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:01:13,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:01:13,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:01:13,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:01:13,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:01:13,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:01:13,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:01:13,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:01:13,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:01:13,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:01:13,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:01:13,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:01:13,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:01:13,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:01:13,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:01:13,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:01:13,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:01:13,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:01:13,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:01:13,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:01:13,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:01:13,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:01:13,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:01:13,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:01:13,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:01:13,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:01:13,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:01:13,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:01:13,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:01:13,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:01:13,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:01:13,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:01:13,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:01:13,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:01:13,344 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 21:01:13,385 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:01:13,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:01:13,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:01:13,386 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:01:13,390 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:01:13,390 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:01:13,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:01:13,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:01:13,392 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:01:13,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:01:13,393 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:01:13,393 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:01:13,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:01:13,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:01:13,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:01:13,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:01:13,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:01:13,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:01:13,395 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 21:01:13,395 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:01:13,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:01:13,395 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:01:13,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:01:13,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:01:13,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:01:13,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:01:13,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:01:13,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:01:13,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:01:13,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:01:13,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:01:13,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:01:13,400 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:01:13,400 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:01:13,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:01:13,400 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_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b48bde914fb7ebeda4cbd6fd329f7fd1281e3c3e233b6f5149c7b66a2f709ab [2022-11-18 21:01:13,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:01:13,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:01:13,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:01:13,788 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:01:13,795 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:01:13,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2022-11-18 21:01:13,895 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/data/2f77b6504/3fca0a163a5e4e80a97feffc6b967f67/FLAG4a827067e [2022-11-18 21:01:14,486 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:01:14,487 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2022-11-18 21:01:14,499 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/data/2f77b6504/3fca0a163a5e4e80a97feffc6b967f67/FLAG4a827067e [2022-11-18 21:01:14,828 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/data/2f77b6504/3fca0a163a5e4e80a97feffc6b967f67 [2022-11-18 21:01:14,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:01:14,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:01:14,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:01:14,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:01:14,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:01:14,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:01:14" (1/1) ... [2022-11-18 21:01:14,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d6f730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:14, skipping insertion in model container [2022-11-18 21:01:14,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:01:14" (1/1) ... [2022-11-18 21:01:14,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:01:14,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:01:15,194 WARN L234 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_5dce4b84-bfad-44f0-9616-6439cb7038fa/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c[2514,2527] [2022-11-18 21:01:15,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:01:15,219 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:01:15,264 WARN L234 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_5dce4b84-bfad-44f0-9616-6439cb7038fa/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c[2514,2527] [2022-11-18 21:01:15,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:01:15,285 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:01:15,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:15 WrapperNode [2022-11-18 21:01:15,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:01:15,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:01:15,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:01:15,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:01:15,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:15" (1/1) ... [2022-11-18 21:01:15,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:15" (1/1) ... [2022-11-18 21:01:15,347 INFO L138 Inliner]: procedures = 23, calls = 30, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 258 [2022-11-18 21:01:15,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:01:15,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:01:15,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:01:15,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:01:15,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:15" (1/1) ... [2022-11-18 21:01:15,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:15" (1/1) ... [2022-11-18 21:01:15,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:15" (1/1) ... [2022-11-18 21:01:15,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:15" (1/1) ... [2022-11-18 21:01:15,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:15" (1/1) ... [2022-11-18 21:01:15,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:15" (1/1) ... [2022-11-18 21:01:15,399 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:15" (1/1) ... [2022-11-18 21:01:15,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:15" (1/1) ... [2022-11-18 21:01:15,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:01:15,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:01:15,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:01:15,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:01:15,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:15" (1/1) ... [2022-11-18 21:01:15,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:01:15,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:01:15,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:01:15,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:01:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:01:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 21:01:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 21:01:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 21:01:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 21:01:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 21:01:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 21:01:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:01:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:01:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:01:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:01:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:01:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:01:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:01:15,519 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 21:01:15,706 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:01:15,708 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:01:16,294 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:01:16,306 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:01:16,313 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 21:01:16,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:01:16 BoogieIcfgContainer [2022-11-18 21:01:16,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:01:16,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:01:16,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:01:16,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:01:16,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:01:14" (1/3) ... [2022-11-18 21:01:16,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146cae19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:01:16, skipping insertion in model container [2022-11-18 21:01:16,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:15" (2/3) ... [2022-11-18 21:01:16,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146cae19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:01:16, skipping insertion in model container [2022-11-18 21:01:16,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:01:16" (3/3) ... [2022-11-18 21:01:16,328 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2022-11-18 21:01:16,340 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 21:01:16,351 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:01:16,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-18 21:01:16,352 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 21:01:16,504 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 21:01:16,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 333 places, 338 transitions, 700 flow [2022-11-18 21:01:16,699 INFO L130 PetriNetUnfolder]: 15/335 cut-off events. [2022-11-18 21:01:16,699 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 21:01:16,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 335 events. 15/335 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 787 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 211. Up to 2 conditions per place. [2022-11-18 21:01:16,721 INFO L82 GeneralOperation]: Start removeDead. Operand has 333 places, 338 transitions, 700 flow [2022-11-18 21:01:16,740 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 308 places, 311 transitions, 640 flow [2022-11-18 21:01:16,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:01:16,777 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;@5d7ea83f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:01:16,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2022-11-18 21:01:16,787 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-18 21:01:16,787 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:01:16,787 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:16,788 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:16,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:16,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:16,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1560099782, now seen corresponding path program 1 times [2022-11-18 21:01:16,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:16,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413388239] [2022-11-18 21:01:16,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:16,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:17,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:17,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:17,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413388239] [2022-11-18 21:01:17,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413388239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:17,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:17,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:17,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296933836] [2022-11-18 21:01:17,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:17,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:17,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:17,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:17,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:17,171 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 338 [2022-11-18 21:01:17,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 311 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:17,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:17,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 338 [2022-11-18 21:01:17,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:17,498 INFO L130 PetriNetUnfolder]: 42/731 cut-off events. [2022-11-18 21:01:17,499 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-18 21:01:17,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 731 events. 42/731 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3664 event pairs, 21 based on Foata normal form. 28/633 useless extension candidates. Maximal degree in co-relation 554. Up to 58 conditions per place. [2022-11-18 21:01:17,517 INFO L137 encePairwiseOnDemand]: 329/338 looper letters, 15 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2022-11-18 21:01:17,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 304 transitions, 660 flow [2022-11-18 21:01:17,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:17,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:17,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 960 transitions. [2022-11-18 21:01:17,547 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9467455621301775 [2022-11-18 21:01:17,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 960 transitions. [2022-11-18 21:01:17,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 960 transitions. [2022-11-18 21:01:17,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:17,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 960 transitions. [2022-11-18 21:01:17,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 320.0) internal successors, (960), 3 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:17,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:17,593 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:17,595 INFO L175 Difference]: Start difference. First operand has 308 places, 311 transitions, 640 flow. Second operand 3 states and 960 transitions. [2022-11-18 21:01:17,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 304 transitions, 660 flow [2022-11-18 21:01:17,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 304 transitions, 648 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 21:01:17,607 INFO L231 Difference]: Finished difference. Result has 303 places, 304 transitions, 618 flow [2022-11-18 21:01:17,610 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=303, PETRI_TRANSITIONS=304} [2022-11-18 21:01:17,618 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -5 predicate places. [2022-11-18 21:01:17,618 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 304 transitions, 618 flow [2022-11-18 21:01:17,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:17,619 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:17,620 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:17,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:01:17,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:17,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:17,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1437875308, now seen corresponding path program 1 times [2022-11-18 21:01:17,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:17,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292567656] [2022-11-18 21:01:17,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:17,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:17,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:17,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:17,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292567656] [2022-11-18 21:01:17,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292567656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:17,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:17,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:17,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956261299] [2022-11-18 21:01:17,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:17,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:17,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:17,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:17,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:17,705 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 338 [2022-11-18 21:01:17,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 304 transitions, 618 flow. Second operand has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:17,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:17,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 338 [2022-11-18 21:01:17,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:17,961 INFO L130 PetriNetUnfolder]: 37/757 cut-off events. [2022-11-18 21:01:17,962 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-11-18 21:01:17,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 835 conditions, 757 events. 37/757 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3941 event pairs, 21 based on Foata normal form. 0/651 useless extension candidates. Maximal degree in co-relation 798. Up to 63 conditions per place. [2022-11-18 21:01:17,973 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 15 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2022-11-18 21:01:17,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 303 transitions, 650 flow [2022-11-18 21:01:17,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:17,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:17,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 954 transitions. [2022-11-18 21:01:17,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9408284023668639 [2022-11-18 21:01:17,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 954 transitions. [2022-11-18 21:01:17,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 954 transitions. [2022-11-18 21:01:17,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:17,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 954 transitions. [2022-11-18 21:01:17,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:17,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:17,985 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:17,985 INFO L175 Difference]: Start difference. First operand has 303 places, 304 transitions, 618 flow. Second operand 3 states and 954 transitions. [2022-11-18 21:01:17,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 303 transitions, 650 flow [2022-11-18 21:01:17,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 303 transitions, 646 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:17,994 INFO L231 Difference]: Finished difference. Result has 302 places, 303 transitions, 616 flow [2022-11-18 21:01:17,995 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=616, PETRI_PLACES=302, PETRI_TRANSITIONS=303} [2022-11-18 21:01:17,996 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -6 predicate places. [2022-11-18 21:01:17,996 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 303 transitions, 616 flow [2022-11-18 21:01:17,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:17,998 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:17,998 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:17,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:01:17,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:17,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:17,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1085580702, now seen corresponding path program 1 times [2022-11-18 21:01:17,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:18,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708558586] [2022-11-18 21:01:18,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:18,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:18,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:18,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:18,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708558586] [2022-11-18 21:01:18,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708558586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:18,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:18,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:18,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583220707] [2022-11-18 21:01:18,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:18,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:18,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:18,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:18,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:18,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 338 [2022-11-18 21:01:18,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 303 transitions, 616 flow. Second operand has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:18,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:18,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 338 [2022-11-18 21:01:18,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:18,389 INFO L130 PetriNetUnfolder]: 111/1292 cut-off events. [2022-11-18 21:01:18,390 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 21:01:18,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1479 conditions, 1292 events. 111/1292 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 9796 event pairs, 72 based on Foata normal form. 0/1065 useless extension candidates. Maximal degree in co-relation 1435. Up to 145 conditions per place. [2022-11-18 21:01:18,415 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 18 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2022-11-18 21:01:18,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 302 transitions, 654 flow [2022-11-18 21:01:18,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:18,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:18,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 948 transitions. [2022-11-18 21:01:18,421 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9349112426035503 [2022-11-18 21:01:18,422 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 948 transitions. [2022-11-18 21:01:18,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 948 transitions. [2022-11-18 21:01:18,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:18,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 948 transitions. [2022-11-18 21:01:18,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 316.0) internal successors, (948), 3 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:18,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:18,431 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:18,431 INFO L175 Difference]: Start difference. First operand has 302 places, 303 transitions, 616 flow. Second operand 3 states and 948 transitions. [2022-11-18 21:01:18,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 302 transitions, 654 flow [2022-11-18 21:01:18,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 302 transitions, 650 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:18,438 INFO L231 Difference]: Finished difference. Result has 301 places, 302 transitions, 614 flow [2022-11-18 21:01:18,439 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=614, PETRI_PLACES=301, PETRI_TRANSITIONS=302} [2022-11-18 21:01:18,442 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -7 predicate places. [2022-11-18 21:01:18,442 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 302 transitions, 614 flow [2022-11-18 21:01:18,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:18,443 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:18,443 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:18,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:01:18,444 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:18,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:18,445 INFO L85 PathProgramCache]: Analyzing trace with hash 996807102, now seen corresponding path program 1 times [2022-11-18 21:01:18,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:18,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341889133] [2022-11-18 21:01:18,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:18,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:18,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:18,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341889133] [2022-11-18 21:01:18,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341889133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:18,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:18,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:18,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123934312] [2022-11-18 21:01:18,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:18,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:18,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:18,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:18,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:18,545 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 338 [2022-11-18 21:01:18,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 302 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:18,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:18,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 338 [2022-11-18 21:01:18,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:18,784 INFO L130 PetriNetUnfolder]: 63/1169 cut-off events. [2022-11-18 21:01:18,784 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-18 21:01:18,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 1169 events. 63/1169 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 8117 event pairs, 39 based on Foata normal form. 0/1004 useless extension candidates. Maximal degree in co-relation 1235. Up to 90 conditions per place. [2022-11-18 21:01:18,800 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 15 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2022-11-18 21:01:18,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 301 transitions, 646 flow [2022-11-18 21:01:18,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:18,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:18,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 954 transitions. [2022-11-18 21:01:18,804 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9408284023668639 [2022-11-18 21:01:18,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 954 transitions. [2022-11-18 21:01:18,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 954 transitions. [2022-11-18 21:01:18,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:18,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 954 transitions. [2022-11-18 21:01:18,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:18,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:18,811 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:18,811 INFO L175 Difference]: Start difference. First operand has 301 places, 302 transitions, 614 flow. Second operand 3 states and 954 transitions. [2022-11-18 21:01:18,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 301 transitions, 646 flow [2022-11-18 21:01:18,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 301 transitions, 642 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:18,818 INFO L231 Difference]: Finished difference. Result has 300 places, 301 transitions, 612 flow [2022-11-18 21:01:18,818 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=612, PETRI_PLACES=300, PETRI_TRANSITIONS=301} [2022-11-18 21:01:18,819 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -8 predicate places. [2022-11-18 21:01:18,820 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 301 transitions, 612 flow [2022-11-18 21:01:18,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:18,821 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:18,821 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:18,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:01:18,821 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:18,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:18,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1460538266, now seen corresponding path program 1 times [2022-11-18 21:01:18,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:18,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102201571] [2022-11-18 21:01:18,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:18,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:18,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:18,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102201571] [2022-11-18 21:01:18,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102201571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:18,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:18,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:18,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977161797] [2022-11-18 21:01:18,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:18,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:18,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:18,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:18,877 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 338 [2022-11-18 21:01:18,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 301 transitions, 612 flow. Second operand has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:18,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:18,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 338 [2022-11-18 21:01:18,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:19,179 INFO L130 PetriNetUnfolder]: 175/1374 cut-off events. [2022-11-18 21:01:19,179 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-18 21:01:19,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1639 conditions, 1374 events. 175/1374 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 10160 event pairs, 132 based on Foata normal form. 0/1145 useless extension candidates. Maximal degree in co-relation 1581. Up to 250 conditions per place. [2022-11-18 21:01:19,198 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 21 selfloop transitions, 2 changer transitions 0/300 dead transitions. [2022-11-18 21:01:19,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 300 transitions, 656 flow [2022-11-18 21:01:19,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:19,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 942 transitions. [2022-11-18 21:01:19,202 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9289940828402367 [2022-11-18 21:01:19,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 942 transitions. [2022-11-18 21:01:19,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 942 transitions. [2022-11-18 21:01:19,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:19,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 942 transitions. [2022-11-18 21:01:19,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 314.0) internal successors, (942), 3 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,209 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,209 INFO L175 Difference]: Start difference. First operand has 300 places, 301 transitions, 612 flow. Second operand 3 states and 942 transitions. [2022-11-18 21:01:19,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 300 transitions, 656 flow [2022-11-18 21:01:19,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 300 transitions, 652 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:19,215 INFO L231 Difference]: Finished difference. Result has 299 places, 300 transitions, 610 flow [2022-11-18 21:01:19,216 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=610, PETRI_PLACES=299, PETRI_TRANSITIONS=300} [2022-11-18 21:01:19,219 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -9 predicate places. [2022-11-18 21:01:19,219 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 300 transitions, 610 flow [2022-11-18 21:01:19,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:19,221 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:19,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:01:19,221 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:19,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:19,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2095120299, now seen corresponding path program 1 times [2022-11-18 21:01:19,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:19,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335609953] [2022-11-18 21:01:19,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:19,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:19,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:19,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:19,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335609953] [2022-11-18 21:01:19,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335609953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:19,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:19,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:19,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128502074] [2022-11-18 21:01:19,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:19,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:19,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:19,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:19,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:19,332 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 338 [2022-11-18 21:01:19,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 300 transitions, 610 flow. Second operand has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:19,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 338 [2022-11-18 21:01:19,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:19,513 INFO L130 PetriNetUnfolder]: 53/815 cut-off events. [2022-11-18 21:01:19,513 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-18 21:01:19,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 815 events. 53/815 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4336 event pairs, 39 based on Foata normal form. 0/714 useless extension candidates. Maximal degree in co-relation 852. Up to 90 conditions per place. [2022-11-18 21:01:19,558 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 15 selfloop transitions, 2 changer transitions 0/299 dead transitions. [2022-11-18 21:01:19,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 299 transitions, 642 flow [2022-11-18 21:01:19,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:19,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:19,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 954 transitions. [2022-11-18 21:01:19,561 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9408284023668639 [2022-11-18 21:01:19,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 954 transitions. [2022-11-18 21:01:19,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 954 transitions. [2022-11-18 21:01:19,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:19,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 954 transitions. [2022-11-18 21:01:19,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,567 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,567 INFO L175 Difference]: Start difference. First operand has 299 places, 300 transitions, 610 flow. Second operand 3 states and 954 transitions. [2022-11-18 21:01:19,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 299 transitions, 642 flow [2022-11-18 21:01:19,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 299 transitions, 638 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:19,572 INFO L231 Difference]: Finished difference. Result has 298 places, 299 transitions, 608 flow [2022-11-18 21:01:19,573 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=608, PETRI_PLACES=298, PETRI_TRANSITIONS=299} [2022-11-18 21:01:19,574 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -10 predicate places. [2022-11-18 21:01:19,574 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 299 transitions, 608 flow [2022-11-18 21:01:19,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,575 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:19,575 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:19,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:01:19,576 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:19,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:19,577 INFO L85 PathProgramCache]: Analyzing trace with hash -667621195, now seen corresponding path program 1 times [2022-11-18 21:01:19,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:19,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074292680] [2022-11-18 21:01:19,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:19,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:19,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:19,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:19,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074292680] [2022-11-18 21:01:19,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074292680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:19,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:19,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:19,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424014825] [2022-11-18 21:01:19,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:19,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:19,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:19,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:19,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:19,628 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 338 [2022-11-18 21:01:19,629 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 299 transitions, 608 flow. Second operand has 3 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:19,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 338 [2022-11-18 21:01:19,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:19,759 INFO L130 PetriNetUnfolder]: 33/723 cut-off events. [2022-11-18 21:01:19,760 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 21:01:19,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 771 conditions, 723 events. 33/723 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3701 event pairs, 8 based on Foata normal form. 0/618 useless extension candidates. Maximal degree in co-relation 698. Up to 31 conditions per place. [2022-11-18 21:01:19,771 INFO L137 encePairwiseOnDemand]: 334/338 looper letters, 14 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2022-11-18 21:01:19,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 301 transitions, 646 flow [2022-11-18 21:01:19,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:19,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:19,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 963 transitions. [2022-11-18 21:01:19,774 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9497041420118343 [2022-11-18 21:01:19,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 963 transitions. [2022-11-18 21:01:19,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 963 transitions. [2022-11-18 21:01:19,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:19,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 963 transitions. [2022-11-18 21:01:19,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,781 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,781 INFO L175 Difference]: Start difference. First operand has 298 places, 299 transitions, 608 flow. Second operand 3 states and 963 transitions. [2022-11-18 21:01:19,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 301 transitions, 646 flow [2022-11-18 21:01:19,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 301 transitions, 642 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:19,787 INFO L231 Difference]: Finished difference. Result has 297 places, 299 transitions, 614 flow [2022-11-18 21:01:19,788 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=614, PETRI_PLACES=297, PETRI_TRANSITIONS=299} [2022-11-18 21:01:19,788 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -11 predicate places. [2022-11-18 21:01:19,789 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 299 transitions, 614 flow [2022-11-18 21:01:19,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:19,790 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:19,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:01:19,790 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:19,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:19,791 INFO L85 PathProgramCache]: Analyzing trace with hash 891291216, now seen corresponding path program 1 times [2022-11-18 21:01:19,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:19,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748402239] [2022-11-18 21:01:19,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:19,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:19,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:19,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:19,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748402239] [2022-11-18 21:01:19,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748402239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:19,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:19,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:19,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270614162] [2022-11-18 21:01:19,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:19,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:19,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:19,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:19,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:19,839 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 338 [2022-11-18 21:01:19,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 299 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:19,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 338 [2022-11-18 21:01:19,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:20,076 INFO L130 PetriNetUnfolder]: 70/1060 cut-off events. [2022-11-18 21:01:20,077 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 21:01:20,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 1060 events. 70/1060 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 7424 event pairs, 10 based on Foata normal form. 0/906 useless extension candidates. Maximal degree in co-relation 1027. Up to 73 conditions per place. [2022-11-18 21:01:20,095 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 16 selfloop transitions, 3 changer transitions 0/301 dead transitions. [2022-11-18 21:01:20,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 301 transitions, 658 flow [2022-11-18 21:01:20,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:20,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 958 transitions. [2022-11-18 21:01:20,099 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9447731755424064 [2022-11-18 21:01:20,099 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 958 transitions. [2022-11-18 21:01:20,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 958 transitions. [2022-11-18 21:01:20,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:20,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 958 transitions. [2022-11-18 21:01:20,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,107 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,107 INFO L175 Difference]: Start difference. First operand has 297 places, 299 transitions, 614 flow. Second operand 3 states and 958 transitions. [2022-11-18 21:01:20,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 301 transitions, 658 flow [2022-11-18 21:01:20,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 301 transitions, 658 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:01:20,114 INFO L231 Difference]: Finished difference. Result has 297 places, 299 transitions, 629 flow [2022-11-18 21:01:20,115 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=629, PETRI_PLACES=297, PETRI_TRANSITIONS=299} [2022-11-18 21:01:20,117 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -11 predicate places. [2022-11-18 21:01:20,118 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 299 transitions, 629 flow [2022-11-18 21:01:20,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,118 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:20,119 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:20,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 21:01:20,119 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:20,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:20,120 INFO L85 PathProgramCache]: Analyzing trace with hash 969564638, now seen corresponding path program 1 times [2022-11-18 21:01:20,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:20,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986621036] [2022-11-18 21:01:20,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:20,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:20,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:20,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:20,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986621036] [2022-11-18 21:01:20,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986621036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:20,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:20,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:20,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961632950] [2022-11-18 21:01:20,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:20,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:20,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:20,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:20,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:20,200 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 338 [2022-11-18 21:01:20,201 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 299 transitions, 629 flow. Second operand has 3 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:20,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 338 [2022-11-18 21:01:20,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:20,453 INFO L130 PetriNetUnfolder]: 31/844 cut-off events. [2022-11-18 21:01:20,453 INFO L131 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2022-11-18 21:01:20,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 844 events. 31/844 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4562 event pairs, 2 based on Foata normal form. 1/752 useless extension candidates. Maximal degree in co-relation 762. Up to 38 conditions per place. [2022-11-18 21:01:20,470 INFO L137 encePairwiseOnDemand]: 334/338 looper letters, 17 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2022-11-18 21:01:20,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 304 transitions, 682 flow [2022-11-18 21:01:20,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:20,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:20,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 966 transitions. [2022-11-18 21:01:20,475 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9526627218934911 [2022-11-18 21:01:20,476 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 966 transitions. [2022-11-18 21:01:20,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 966 transitions. [2022-11-18 21:01:20,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:20,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 966 transitions. [2022-11-18 21:01:20,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 322.0) internal successors, (966), 3 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,482 INFO L175 Difference]: Start difference. First operand has 297 places, 299 transitions, 629 flow. Second operand 3 states and 966 transitions. [2022-11-18 21:01:20,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 304 transitions, 682 flow [2022-11-18 21:01:20,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 304 transitions, 682 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:01:20,489 INFO L231 Difference]: Finished difference. Result has 298 places, 299 transitions, 639 flow [2022-11-18 21:01:20,489 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=639, PETRI_PLACES=298, PETRI_TRANSITIONS=299} [2022-11-18 21:01:20,490 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -10 predicate places. [2022-11-18 21:01:20,490 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 299 transitions, 639 flow [2022-11-18 21:01:20,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,491 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:20,491 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:20,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 21:01:20,492 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:20,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:20,493 INFO L85 PathProgramCache]: Analyzing trace with hash -256260926, now seen corresponding path program 1 times [2022-11-18 21:01:20,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:20,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679108280] [2022-11-18 21:01:20,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:20,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:20,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:20,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:20,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679108280] [2022-11-18 21:01:20,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679108280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:20,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:20,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:20,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169145262] [2022-11-18 21:01:20,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:20,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:20,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:20,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:20,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:20,537 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 338 [2022-11-18 21:01:20,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 299 transitions, 639 flow. Second operand has 3 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:20,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 338 [2022-11-18 21:01:20,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:20,810 INFO L130 PetriNetUnfolder]: 43/1173 cut-off events. [2022-11-18 21:01:20,810 INFO L131 PetriNetUnfolder]: For 16/20 co-relation queries the response was YES. [2022-11-18 21:01:20,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 1173 events. 43/1173 cut-off events. For 16/20 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7620 event pairs, 6 based on Foata normal form. 2/1047 useless extension candidates. Maximal degree in co-relation 1136. Up to 64 conditions per place. [2022-11-18 21:01:20,832 INFO L137 encePairwiseOnDemand]: 334/338 looper letters, 17 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2022-11-18 21:01:20,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 304 transitions, 692 flow [2022-11-18 21:01:20,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:20,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:20,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 966 transitions. [2022-11-18 21:01:20,835 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9526627218934911 [2022-11-18 21:01:20,836 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 966 transitions. [2022-11-18 21:01:20,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 966 transitions. [2022-11-18 21:01:20,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:20,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 966 transitions. [2022-11-18 21:01:20,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 322.0) internal successors, (966), 3 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,842 INFO L175 Difference]: Start difference. First operand has 298 places, 299 transitions, 639 flow. Second operand 3 states and 966 transitions. [2022-11-18 21:01:20,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 304 transitions, 692 flow [2022-11-18 21:01:20,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 304 transitions, 692 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:01:20,848 INFO L231 Difference]: Finished difference. Result has 299 places, 299 transitions, 649 flow [2022-11-18 21:01:20,849 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=649, PETRI_PLACES=299, PETRI_TRANSITIONS=299} [2022-11-18 21:01:20,849 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -9 predicate places. [2022-11-18 21:01:20,850 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 299 transitions, 649 flow [2022-11-18 21:01:20,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,850 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:20,851 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:20,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 21:01:20,851 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:20,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:20,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1349224512, now seen corresponding path program 1 times [2022-11-18 21:01:20,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:20,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871097419] [2022-11-18 21:01:20,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:20,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:20,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:20,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:20,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871097419] [2022-11-18 21:01:20,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871097419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:20,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:20,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:20,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899950438] [2022-11-18 21:01:20,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:20,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:20,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:20,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:20,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:20,899 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 338 [2022-11-18 21:01:20,900 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 299 transitions, 649 flow. Second operand has 3 states, 3 states have (on average 317.3333333333333) internal successors, (952), 3 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,900 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:20,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 338 [2022-11-18 21:01:20,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:21,153 INFO L130 PetriNetUnfolder]: 38/1021 cut-off events. [2022-11-18 21:01:21,154 INFO L131 PetriNetUnfolder]: For 10/24 co-relation queries the response was YES. [2022-11-18 21:01:21,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1155 conditions, 1021 events. 38/1021 cut-off events. For 10/24 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6187 event pairs, 8 based on Foata normal form. 3/905 useless extension candidates. Maximal degree in co-relation 1000. Up to 46 conditions per place. [2022-11-18 21:01:21,174 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 13 selfloop transitions, 2 changer transitions 0/300 dead transitions. [2022-11-18 21:01:21,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 300 transitions, 683 flow [2022-11-18 21:01:21,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:21,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:21,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 964 transitions. [2022-11-18 21:01:21,177 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9506903353057199 [2022-11-18 21:01:21,178 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 964 transitions. [2022-11-18 21:01:21,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 964 transitions. [2022-11-18 21:01:21,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:21,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 964 transitions. [2022-11-18 21:01:21,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:21,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:21,185 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:21,185 INFO L175 Difference]: Start difference. First operand has 299 places, 299 transitions, 649 flow. Second operand 3 states and 964 transitions. [2022-11-18 21:01:21,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 300 transitions, 683 flow [2022-11-18 21:01:21,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 300 transitions, 683 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:01:21,192 INFO L231 Difference]: Finished difference. Result has 300 places, 298 transitions, 651 flow [2022-11-18 21:01:21,193 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=651, PETRI_PLACES=300, PETRI_TRANSITIONS=298} [2022-11-18 21:01:21,194 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -8 predicate places. [2022-11-18 21:01:21,194 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 298 transitions, 651 flow [2022-11-18 21:01:21,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 317.3333333333333) internal successors, (952), 3 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:21,195 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:21,195 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:21,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 21:01:21,195 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:21,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:21,196 INFO L85 PathProgramCache]: Analyzing trace with hash -390797233, now seen corresponding path program 1 times [2022-11-18 21:01:21,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:21,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454209513] [2022-11-18 21:01:21,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:21,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:21,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:21,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:21,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454209513] [2022-11-18 21:01:21,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454209513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:21,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:21,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:21,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376243916] [2022-11-18 21:01:21,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:21,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:21,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:21,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:21,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:21,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 338 [2022-11-18 21:01:21,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 298 transitions, 651 flow. Second operand has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:21,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:21,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 338 [2022-11-18 21:01:21,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:21,911 INFO L130 PetriNetUnfolder]: 240/3598 cut-off events. [2022-11-18 21:01:21,911 INFO L131 PetriNetUnfolder]: For 69/89 co-relation queries the response was YES. [2022-11-18 21:01:21,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4087 conditions, 3598 events. 240/3598 cut-off events. For 69/89 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 35951 event pairs, 60 based on Foata normal form. 0/3192 useless extension candidates. Maximal degree in co-relation 3503. Up to 331 conditions per place. [2022-11-18 21:01:22,027 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 18 selfloop transitions, 4 changer transitions 0/300 dead transitions. [2022-11-18 21:01:22,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 300 transitions, 701 flow [2022-11-18 21:01:22,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:22,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 953 transitions. [2022-11-18 21:01:22,031 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9398422090729783 [2022-11-18 21:01:22,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 953 transitions. [2022-11-18 21:01:22,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 953 transitions. [2022-11-18 21:01:22,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:22,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 953 transitions. [2022-11-18 21:01:22,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.6666666666667) internal successors, (953), 3 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:22,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:22,047 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:22,048 INFO L175 Difference]: Start difference. First operand has 300 places, 298 transitions, 651 flow. Second operand 3 states and 953 transitions. [2022-11-18 21:01:22,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 300 transitions, 701 flow [2022-11-18 21:01:22,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 300 transitions, 697 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:22,055 INFO L231 Difference]: Finished difference. Result has 297 places, 298 transitions, 667 flow [2022-11-18 21:01:22,056 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=667, PETRI_PLACES=297, PETRI_TRANSITIONS=298} [2022-11-18 21:01:22,057 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -11 predicate places. [2022-11-18 21:01:22,058 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 298 transitions, 667 flow [2022-11-18 21:01:22,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:22,059 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:22,059 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:22,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 21:01:22,060 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:22,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:22,060 INFO L85 PathProgramCache]: Analyzing trace with hash 41539643, now seen corresponding path program 1 times [2022-11-18 21:01:22,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:22,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300381269] [2022-11-18 21:01:22,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:22,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:22,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:22,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:22,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300381269] [2022-11-18 21:01:22,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300381269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:22,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:22,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:22,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135486868] [2022-11-18 21:01:22,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:22,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:22,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:22,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:22,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:22,128 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 338 [2022-11-18 21:01:22,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 298 transitions, 667 flow. Second operand has 3 states, 3 states have (on average 317.6666666666667) internal successors, (953), 3 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:22,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:22,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 338 [2022-11-18 21:01:22,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:22,632 INFO L130 PetriNetUnfolder]: 102/2167 cut-off events. [2022-11-18 21:01:22,632 INFO L131 PetriNetUnfolder]: For 27/60 co-relation queries the response was YES. [2022-11-18 21:01:22,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2502 conditions, 2167 events. 102/2167 cut-off events. For 27/60 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 18168 event pairs, 20 based on Foata normal form. 2/1935 useless extension candidates. Maximal degree in co-relation 2056. Up to 84 conditions per place. [2022-11-18 21:01:22,673 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 13 selfloop transitions, 2 changer transitions 0/299 dead transitions. [2022-11-18 21:01:22,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 299 transitions, 701 flow [2022-11-18 21:01:22,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:22,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:22,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 964 transitions. [2022-11-18 21:01:22,676 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9506903353057199 [2022-11-18 21:01:22,676 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 964 transitions. [2022-11-18 21:01:22,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 964 transitions. [2022-11-18 21:01:22,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:22,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 964 transitions. [2022-11-18 21:01:22,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:22,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:22,682 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:22,682 INFO L175 Difference]: Start difference. First operand has 297 places, 298 transitions, 667 flow. Second operand 3 states and 964 transitions. [2022-11-18 21:01:22,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 299 transitions, 701 flow [2022-11-18 21:01:22,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 299 transitions, 701 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:01:22,742 INFO L231 Difference]: Finished difference. Result has 298 places, 297 transitions, 669 flow [2022-11-18 21:01:22,743 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=669, PETRI_PLACES=298, PETRI_TRANSITIONS=297} [2022-11-18 21:01:22,743 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -10 predicate places. [2022-11-18 21:01:22,743 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 297 transitions, 669 flow [2022-11-18 21:01:22,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 317.6666666666667) internal successors, (953), 3 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:22,744 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:22,744 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:22,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 21:01:22,744 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:22,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:22,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1563945795, now seen corresponding path program 1 times [2022-11-18 21:01:22,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:22,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677860160] [2022-11-18 21:01:22,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:22,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:22,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:22,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:22,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677860160] [2022-11-18 21:01:22,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677860160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:22,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:22,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:22,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981931946] [2022-11-18 21:01:22,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:22,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:22,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:22,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:22,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:22,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 338 [2022-11-18 21:01:22,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 297 transitions, 669 flow. Second operand has 3 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:22,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:22,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 338 [2022-11-18 21:01:22,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:23,394 INFO L130 PetriNetUnfolder]: 115/2656 cut-off events. [2022-11-18 21:01:23,394 INFO L131 PetriNetUnfolder]: For 42/46 co-relation queries the response was YES. [2022-11-18 21:01:23,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2998 conditions, 2656 events. 115/2656 cut-off events. For 42/46 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 23384 event pairs, 14 based on Foata normal form. 0/2414 useless extension candidates. Maximal degree in co-relation 2575. Up to 168 conditions per place. [2022-11-18 21:01:23,428 INFO L137 encePairwiseOnDemand]: 334/338 looper letters, 16 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2022-11-18 21:01:23,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 301 transitions, 717 flow [2022-11-18 21:01:23,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:23,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:23,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 965 transitions. [2022-11-18 21:01:23,431 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9516765285996055 [2022-11-18 21:01:23,432 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 965 transitions. [2022-11-18 21:01:23,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 965 transitions. [2022-11-18 21:01:23,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:23,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 965 transitions. [2022-11-18 21:01:23,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:23,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:23,439 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:23,439 INFO L175 Difference]: Start difference. First operand has 298 places, 297 transitions, 669 flow. Second operand 3 states and 965 transitions. [2022-11-18 21:01:23,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 301 transitions, 717 flow [2022-11-18 21:01:23,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 301 transitions, 713 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:23,447 INFO L231 Difference]: Finished difference. Result has 297 places, 297 transitions, 675 flow [2022-11-18 21:01:23,448 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=297, PETRI_TRANSITIONS=297} [2022-11-18 21:01:23,449 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -11 predicate places. [2022-11-18 21:01:23,449 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 297 transitions, 675 flow [2022-11-18 21:01:23,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:23,450 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:23,450 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:23,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 21:01:23,451 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:23,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:23,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2021995899, now seen corresponding path program 1 times [2022-11-18 21:01:23,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:23,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238799744] [2022-11-18 21:01:23,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:23,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:24,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:24,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238799744] [2022-11-18 21:01:24,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238799744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:24,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:24,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:01:24,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595543880] [2022-11-18 21:01:24,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:24,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:24,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:24,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:24,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:24,017 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 338 [2022-11-18 21:01:24,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 297 transitions, 675 flow. Second operand has 6 states, 6 states have (on average 302.0) internal successors, (1812), 6 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:24,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:24,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 338 [2022-11-18 21:01:24,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:24,452 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([923] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork2_thidvar1_4) (= 0 v_thread3Thread1of1ForFork2_thidvar3_4) (= 0 v_thread3Thread1of1ForFork2_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem33#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork2_thidvar0_4)) InVars {thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} OutVars{thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[][280], [395#(= |#race~to_int_5~0| 0), Black: 384#true, 362#(= |#race~length_0~0| 0), 403#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 386#(= |#race~length_4~0| 0), Black: 360#true, Black: 393#true, 69#L77-7true, Black: 365#true, Black: 370#true, 372#(= |#race~to_int_1~0| 0), 377#(= |#race~to_int_3~0| 0), Black: 375#true, 367#(= |#race~length_2~0| 0)]) [2022-11-18 21:01:24,453 INFO L383 tUnfolder$Statistics]: this new event has 211 ancestors and is not cut-off event [2022-11-18 21:01:24,453 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-18 21:01:24,453 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-18 21:01:24,453 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-18 21:01:24,456 INFO L130 PetriNetUnfolder]: 51/1523 cut-off events. [2022-11-18 21:01:24,456 INFO L131 PetriNetUnfolder]: For 2/24 co-relation queries the response was YES. [2022-11-18 21:01:24,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1748 conditions, 1523 events. 51/1523 cut-off events. For 2/24 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 11225 event pairs, 0 based on Foata normal form. 8/1385 useless extension candidates. Maximal degree in co-relation 1450. Up to 52 conditions per place. [2022-11-18 21:01:24,485 INFO L137 encePairwiseOnDemand]: 333/338 looper letters, 23 selfloop transitions, 4 changer transitions 0/296 dead transitions. [2022-11-18 21:01:24,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 296 transitions, 727 flow [2022-11-18 21:01:24,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:24,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:01:24,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1828 transitions. [2022-11-18 21:01:24,491 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9013806706114399 [2022-11-18 21:01:24,491 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1828 transitions. [2022-11-18 21:01:24,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1828 transitions. [2022-11-18 21:01:24,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:24,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1828 transitions. [2022-11-18 21:01:24,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 304.6666666666667) internal successors, (1828), 6 states have internal predecessors, (1828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:24,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:24,502 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:24,503 INFO L175 Difference]: Start difference. First operand has 297 places, 297 transitions, 675 flow. Second operand 6 states and 1828 transitions. [2022-11-18 21:01:24,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 296 transitions, 727 flow [2022-11-18 21:01:24,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 296 transitions, 727 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:01:24,511 INFO L231 Difference]: Finished difference. Result has 301 places, 296 transitions, 681 flow [2022-11-18 21:01:24,512 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=681, PETRI_PLACES=301, PETRI_TRANSITIONS=296} [2022-11-18 21:01:24,513 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -7 predicate places. [2022-11-18 21:01:24,513 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 296 transitions, 681 flow [2022-11-18 21:01:24,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 302.0) internal successors, (1812), 6 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:24,514 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:24,515 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:24,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 21:01:24,515 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:24,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:24,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1203388477, now seen corresponding path program 1 times [2022-11-18 21:01:24,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:24,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449538602] [2022-11-18 21:01:24,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:24,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:24,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:24,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:24,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449538602] [2022-11-18 21:01:24,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449538602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:24,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:24,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:24,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960595688] [2022-11-18 21:01:24,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:24,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:24,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:24,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:24,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:24,584 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 338 [2022-11-18 21:01:24,586 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 296 transitions, 681 flow. Second operand has 3 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:24,586 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:24,586 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 338 [2022-11-18 21:01:24,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:25,101 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([872] L55-24-->L55-25: Formula: true InVars {} OutVars{thread3Thread1of1ForFork2_#t~nondet12#1=|v_thread3Thread1of1ForFork2_#t~nondet12#1_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~nondet12#1][184], [395#(= |#race~to_int_5~0| 0), Black: 384#true, 362#(= |#race~length_0~0| 0), 405#true, 403#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 386#(= |#race~length_4~0| 0), 105#L76-7true, Black: 360#true, Black: 393#true, Black: 365#true, Black: 370#true, 372#(= |#race~to_int_1~0| 0), 377#(= |#race~to_int_3~0| 0), 367#(= |#race~length_2~0| 0), Black: 375#true, 121#L55-25true]) [2022-11-18 21:01:25,101 INFO L383 tUnfolder$Statistics]: this new event has 195 ancestors and is cut-off event [2022-11-18 21:01:25,102 INFO L386 tUnfolder$Statistics]: existing Event has 223 ancestors and is cut-off event [2022-11-18 21:01:25,102 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-18 21:01:25,102 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-18 21:01:25,121 INFO L130 PetriNetUnfolder]: 136/1813 cut-off events. [2022-11-18 21:01:25,121 INFO L131 PetriNetUnfolder]: For 95/103 co-relation queries the response was YES. [2022-11-18 21:01:25,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2281 conditions, 1813 events. 136/1813 cut-off events. For 95/103 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 15308 event pairs, 36 based on Foata normal form. 0/1656 useless extension candidates. Maximal degree in co-relation 2173. Up to 165 conditions per place. [2022-11-18 21:01:25,154 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 12 selfloop transitions, 2 changer transitions 0/297 dead transitions. [2022-11-18 21:01:25,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 297 transitions, 713 flow [2022-11-18 21:01:25,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:25,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:25,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 963 transitions. [2022-11-18 21:01:25,160 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9497041420118343 [2022-11-18 21:01:25,161 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 963 transitions. [2022-11-18 21:01:25,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 963 transitions. [2022-11-18 21:01:25,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:25,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 963 transitions. [2022-11-18 21:01:25,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:25,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:25,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:25,170 INFO L175 Difference]: Start difference. First operand has 301 places, 296 transitions, 681 flow. Second operand 3 states and 963 transitions. [2022-11-18 21:01:25,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 297 transitions, 713 flow [2022-11-18 21:01:25,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 297 transitions, 706 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 21:01:25,181 INFO L231 Difference]: Finished difference. Result has 298 places, 295 transitions, 676 flow [2022-11-18 21:01:25,182 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=298, PETRI_TRANSITIONS=295} [2022-11-18 21:01:25,183 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -10 predicate places. [2022-11-18 21:01:25,183 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 295 transitions, 676 flow [2022-11-18 21:01:25,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:25,184 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:25,184 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:25,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 21:01:25,185 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:25,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:25,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1862331190, now seen corresponding path program 1 times [2022-11-18 21:01:25,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:25,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837524818] [2022-11-18 21:01:25,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:25,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:25,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:25,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:25,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837524818] [2022-11-18 21:01:25,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837524818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:25,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:25,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:01:25,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529925315] [2022-11-18 21:01:25,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:25,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:25,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:25,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:25,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:25,921 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 338 [2022-11-18 21:01:25,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 295 transitions, 676 flow. Second operand has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:25,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:25,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 338 [2022-11-18 21:01:25,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:26,374 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([923] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork2_thidvar1_4) (= 0 v_thread3Thread1of1ForFork2_thidvar3_4) (= 0 v_thread3Thread1of1ForFork2_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem33#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork2_thidvar0_4)) InVars {thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} OutVars{thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[][278], [395#(= |#race~to_int_5~0| 0), Black: 384#true, 362#(= |#race~length_0~0| 0), 403#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 405#true, 386#(= |#race~length_4~0| 0), Black: 360#true, Black: 393#true, 69#L77-7true, Black: 365#true, 414#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), Black: 370#true, 372#(= |#race~to_int_1~0| 0), 377#(= |#race~to_int_3~0| 0), Black: 375#true, 367#(= |#race~length_2~0| 0)]) [2022-11-18 21:01:26,375 INFO L383 tUnfolder$Statistics]: this new event has 211 ancestors and is not cut-off event [2022-11-18 21:01:26,375 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-18 21:01:26,375 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-18 21:01:26,375 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-18 21:01:26,378 INFO L130 PetriNetUnfolder]: 51/1492 cut-off events. [2022-11-18 21:01:26,378 INFO L131 PetriNetUnfolder]: For 2/23 co-relation queries the response was YES. [2022-11-18 21:01:26,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1776 conditions, 1492 events. 51/1492 cut-off events. For 2/23 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 10894 event pairs, 0 based on Foata normal form. 4/1381 useless extension candidates. Maximal degree in co-relation 1664. Up to 42 conditions per place. [2022-11-18 21:01:26,409 INFO L137 encePairwiseOnDemand]: 333/338 looper letters, 22 selfloop transitions, 4 changer transitions 0/294 dead transitions. [2022-11-18 21:01:26,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 294 transitions, 726 flow [2022-11-18 21:01:26,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:26,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:01:26,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1827 transitions. [2022-11-18 21:01:26,414 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.900887573964497 [2022-11-18 21:01:26,414 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1827 transitions. [2022-11-18 21:01:26,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1827 transitions. [2022-11-18 21:01:26,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:26,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1827 transitions. [2022-11-18 21:01:26,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 304.5) internal successors, (1827), 6 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,425 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,425 INFO L175 Difference]: Start difference. First operand has 298 places, 295 transitions, 676 flow. Second operand 6 states and 1827 transitions. [2022-11-18 21:01:26,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 294 transitions, 726 flow [2022-11-18 21:01:26,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 294 transitions, 722 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:01:26,466 INFO L231 Difference]: Finished difference. Result has 300 places, 294 transitions, 678 flow [2022-11-18 21:01:26,467 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=678, PETRI_PLACES=300, PETRI_TRANSITIONS=294} [2022-11-18 21:01:26,467 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -8 predicate places. [2022-11-18 21:01:26,468 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 294 transitions, 678 flow [2022-11-18 21:01:26,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:26,469 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:26,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 21:01:26,469 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:26,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:26,469 INFO L85 PathProgramCache]: Analyzing trace with hash -864771488, now seen corresponding path program 1 times [2022-11-18 21:01:26,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:26,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721274325] [2022-11-18 21:01:26,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:26,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:27,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:27,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721274325] [2022-11-18 21:01:27,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721274325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:27,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:27,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:01:27,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801919505] [2022-11-18 21:01:27,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:27,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:27,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:27,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:27,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:27,065 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 338 [2022-11-18 21:01:27,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 294 transitions, 678 flow. Second operand has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:27,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:27,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 338 [2022-11-18 21:01:27,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:27,446 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([923] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork2_thidvar1_4) (= 0 v_thread3Thread1of1ForFork2_thidvar3_4) (= 0 v_thread3Thread1of1ForFork2_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem33#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork2_thidvar0_4)) InVars {thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} OutVars{thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[][277], [395#(= |#race~to_int_5~0| 0), Black: 384#true, 362#(= |#race~length_0~0| 0), 403#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 386#(= |#race~length_4~0| 0), Black: 360#true, Black: 393#true, 69#L77-7true, Black: 365#true, 414#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), Black: 370#true, 372#(= |#race~to_int_1~0| 0), 421#(and (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ |ULTIMATE.start_main_~#t3~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) |ULTIMATE.start_main_~#t3~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0)), 377#(= |#race~to_int_3~0| 0), Black: 375#true, 367#(= |#race~length_2~0| 0)]) [2022-11-18 21:01:27,446 INFO L383 tUnfolder$Statistics]: this new event has 211 ancestors and is not cut-off event [2022-11-18 21:01:27,446 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-18 21:01:27,446 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-18 21:01:27,447 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-18 21:01:27,449 INFO L130 PetriNetUnfolder]: 51/1488 cut-off events. [2022-11-18 21:01:27,450 INFO L131 PetriNetUnfolder]: For 4/25 co-relation queries the response was YES. [2022-11-18 21:01:27,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1720 conditions, 1488 events. 51/1488 cut-off events. For 4/25 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 10882 event pairs, 0 based on Foata normal form. 0/1377 useless extension candidates. Maximal degree in co-relation 1608. Up to 42 conditions per place. [2022-11-18 21:01:27,483 INFO L137 encePairwiseOnDemand]: 333/338 looper letters, 21 selfloop transitions, 4 changer transitions 0/293 dead transitions. [2022-11-18 21:01:27,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 293 transitions, 726 flow [2022-11-18 21:01:27,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:27,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:01:27,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1826 transitions. [2022-11-18 21:01:27,488 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9003944773175543 [2022-11-18 21:01:27,489 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1826 transitions. [2022-11-18 21:01:27,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1826 transitions. [2022-11-18 21:01:27,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:27,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1826 transitions. [2022-11-18 21:01:27,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 304.3333333333333) internal successors, (1826), 6 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:27,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:27,501 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:27,501 INFO L175 Difference]: Start difference. First operand has 300 places, 294 transitions, 678 flow. Second operand 6 states and 1826 transitions. [2022-11-18 21:01:27,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 293 transitions, 726 flow [2022-11-18 21:01:27,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 293 transitions, 719 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 21:01:27,509 INFO L231 Difference]: Finished difference. Result has 300 places, 293 transitions, 677 flow [2022-11-18 21:01:27,509 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=677, PETRI_PLACES=300, PETRI_TRANSITIONS=293} [2022-11-18 21:01:27,510 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -8 predicate places. [2022-11-18 21:01:27,510 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 293 transitions, 677 flow [2022-11-18 21:01:27,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:27,511 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:27,512 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:27,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 21:01:27,512 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:27,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:27,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1209793240, now seen corresponding path program 1 times [2022-11-18 21:01:27,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:27,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925595826] [2022-11-18 21:01:27,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:27,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:27,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:27,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:27,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925595826] [2022-11-18 21:01:27,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925595826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:27,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:27,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:27,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244773148] [2022-11-18 21:01:27,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:27,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:27,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:27,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:27,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:27,597 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 338 [2022-11-18 21:01:27,599 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 293 transitions, 677 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:27,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:27,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 338 [2022-11-18 21:01:27,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:28,012 INFO L130 PetriNetUnfolder]: 77/2085 cut-off events. [2022-11-18 21:01:28,013 INFO L131 PetriNetUnfolder]: For 13/29 co-relation queries the response was YES. [2022-11-18 21:01:28,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2392 conditions, 2085 events. 77/2085 cut-off events. For 13/29 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 17057 event pairs, 8 based on Foata normal form. 0/1944 useless extension candidates. Maximal degree in co-relation 2253. Up to 66 conditions per place. [2022-11-18 21:01:28,046 INFO L137 encePairwiseOnDemand]: 336/338 looper letters, 9 selfloop transitions, 1 changer transitions 0/292 dead transitions. [2022-11-18 21:01:28,047 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 292 transitions, 695 flow [2022-11-18 21:01:28,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:28,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:28,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 965 transitions. [2022-11-18 21:01:28,050 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9516765285996055 [2022-11-18 21:01:28,050 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 965 transitions. [2022-11-18 21:01:28,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 965 transitions. [2022-11-18 21:01:28,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:28,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 965 transitions. [2022-11-18 21:01:28,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,057 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,057 INFO L175 Difference]: Start difference. First operand has 300 places, 293 transitions, 677 flow. Second operand 3 states and 965 transitions. [2022-11-18 21:01:28,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 292 transitions, 695 flow [2022-11-18 21:01:28,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 292 transitions, 688 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 21:01:28,064 INFO L231 Difference]: Finished difference. Result has 297 places, 292 transitions, 670 flow [2022-11-18 21:01:28,065 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=670, PETRI_PLACES=297, PETRI_TRANSITIONS=292} [2022-11-18 21:01:28,065 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -11 predicate places. [2022-11-18 21:01:28,066 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 292 transitions, 670 flow [2022-11-18 21:01:28,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,067 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:28,067 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:28,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 21:01:28,067 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:28,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:28,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1969525056, now seen corresponding path program 1 times [2022-11-18 21:01:28,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:28,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571480505] [2022-11-18 21:01:28,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:28,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:28,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:28,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:28,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571480505] [2022-11-18 21:01:28,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571480505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:28,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:28,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:28,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110450000] [2022-11-18 21:01:28,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:28,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:28,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:28,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:28,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:28,155 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 338 [2022-11-18 21:01:28,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 292 transitions, 670 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:28,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 338 [2022-11-18 21:01:28,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:28,648 INFO L130 PetriNetUnfolder]: 81/2331 cut-off events. [2022-11-18 21:01:28,648 INFO L131 PetriNetUnfolder]: For 21/44 co-relation queries the response was YES. [2022-11-18 21:01:28,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2684 conditions, 2331 events. 81/2331 cut-off events. For 21/44 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 19742 event pairs, 22 based on Foata normal form. 0/2180 useless extension candidates. Maximal degree in co-relation 2580. Up to 75 conditions per place. [2022-11-18 21:01:28,692 INFO L137 encePairwiseOnDemand]: 336/338 looper letters, 9 selfloop transitions, 1 changer transitions 0/291 dead transitions. [2022-11-18 21:01:28,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 291 transitions, 688 flow [2022-11-18 21:01:28,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:28,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:28,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 965 transitions. [2022-11-18 21:01:28,695 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9516765285996055 [2022-11-18 21:01:28,695 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 965 transitions. [2022-11-18 21:01:28,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 965 transitions. [2022-11-18 21:01:28,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:28,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 965 transitions. [2022-11-18 21:01:28,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,702 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,702 INFO L175 Difference]: Start difference. First operand has 297 places, 292 transitions, 670 flow. Second operand 3 states and 965 transitions. [2022-11-18 21:01:28,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 291 transitions, 688 flow [2022-11-18 21:01:28,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 291 transitions, 687 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:01:28,709 INFO L231 Difference]: Finished difference. Result has 297 places, 291 transitions, 669 flow [2022-11-18 21:01:28,709 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=669, PETRI_PLACES=297, PETRI_TRANSITIONS=291} [2022-11-18 21:01:28,710 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -11 predicate places. [2022-11-18 21:01:28,710 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 291 transitions, 669 flow [2022-11-18 21:01:28,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,711 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:01:28,712 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:28,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 21:01:28,712 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 21:01:28,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:28,713 INFO L85 PathProgramCache]: Analyzing trace with hash -62247878, now seen corresponding path program 1 times [2022-11-18 21:01:28,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:28,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434903814] [2022-11-18 21:01:28,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:28,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:28,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:28,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:28,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434903814] [2022-11-18 21:01:28,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434903814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:28,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:28,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:28,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442361503] [2022-11-18 21:01:28,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:28,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:28,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:28,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:28,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:28,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 338 [2022-11-18 21:01:28,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 291 transitions, 669 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:01:28,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 338 [2022-11-18 21:01:28,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:01:29,170 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([876] L55-25-->L55-26: Formula: (= |v_#race~result_8~0_1| |v_thread3Thread1of1ForFork2_#t~nondet12#1_3|) InVars {thread3Thread1of1ForFork2_#t~nondet12#1=|v_thread3Thread1of1ForFork2_#t~nondet12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~nondet12#1=|v_thread3Thread1of1ForFork2_#t~nondet12#1_3|, #race~result_8~0=|v_#race~result_8~0_1|} AuxVars[] AssignedVars[#race~result_8~0][192], [395#(= |#race~to_int_5~0| 0), Black: 384#true, 362#(= |#race~length_0~0| 0), 403#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 386#(= |#race~length_4~0| 0), 105#L76-7true, Black: 360#true, Black: 393#true, Black: 365#true, 427#true, 414#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), Black: 370#true, 372#(= |#race~to_int_1~0| 0), 431#true, 377#(= |#race~to_int_3~0| 0), 367#(= |#race~length_2~0| 0), Black: 375#true, 270#L55-26true]) [2022-11-18 21:01:29,171 INFO L383 tUnfolder$Statistics]: this new event has 224 ancestors and is cut-off event [2022-11-18 21:01:29,171 INFO L386 tUnfolder$Statistics]: existing Event has 196 ancestors and is cut-off event [2022-11-18 21:01:29,171 INFO L386 tUnfolder$Statistics]: existing Event has 196 ancestors and is cut-off event [2022-11-18 21:01:29,171 INFO L386 tUnfolder$Statistics]: existing Event has 196 ancestors and is cut-off event [2022-11-18 21:01:29,185 INFO L130 PetriNetUnfolder]: 89/1738 cut-off events. [2022-11-18 21:01:29,185 INFO L131 PetriNetUnfolder]: For 53/61 co-relation queries the response was YES. [2022-11-18 21:01:29,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2092 conditions, 1738 events. 89/1738 cut-off events. For 53/61 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 13642 event pairs, 36 based on Foata normal form. 10/1624 useless extension candidates. Maximal degree in co-relation 2043. Up to 155 conditions per place. [2022-11-18 21:01:29,207 INFO L137 encePairwiseOnDemand]: 336/338 looper letters, 0 selfloop transitions, 0 changer transitions 290/290 dead transitions. [2022-11-18 21:01:29,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 290 transitions, 685 flow [2022-11-18 21:01:29,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:29,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:01:29,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 964 transitions. [2022-11-18 21:01:29,211 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9506903353057199 [2022-11-18 21:01:29,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 964 transitions. [2022-11-18 21:01:29,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 964 transitions. [2022-11-18 21:01:29,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:01:29,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 964 transitions. [2022-11-18 21:01:29,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,218 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,218 INFO L175 Difference]: Start difference. First operand has 297 places, 291 transitions, 669 flow. Second operand 3 states and 964 transitions. [2022-11-18 21:01:29,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 290 transitions, 685 flow [2022-11-18 21:01:29,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 290 transitions, 684 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:01:29,224 INFO L231 Difference]: Finished difference. Result has 297 places, 0 transitions, 0 flow [2022-11-18 21:01:29,224 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=297, PETRI_TRANSITIONS=0} [2022-11-18 21:01:29,225 INFO L288 CegarLoopForPetriNet]: 308 programPoint places, -11 predicate places. [2022-11-18 21:01:29,225 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 0 transitions, 0 flow [2022-11-18 21:01:29,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (50 of 51 remaining) [2022-11-18 21:01:29,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2022-11-18 21:01:29,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2022-11-18 21:01:29,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2022-11-18 21:01:29,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2022-11-18 21:01:29,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2022-11-18 21:01:29,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (44 of 51 remaining) [2022-11-18 21:01:29,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2022-11-18 21:01:29,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2022-11-18 21:01:29,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2022-11-18 21:01:29,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2022-11-18 21:01:29,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2022-11-18 21:01:29,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2022-11-18 21:01:29,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2022-11-18 21:01:29,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2022-11-18 21:01:29,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2022-11-18 21:01:29,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2022-11-18 21:01:29,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2022-11-18 21:01:29,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2022-11-18 21:01:29,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2022-11-18 21:01:29,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining) [2022-11-18 21:01:29,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining) [2022-11-18 21:01:29,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2022-11-18 21:01:29,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2022-11-18 21:01:29,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2022-11-18 21:01:29,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2022-11-18 21:01:29,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2022-11-18 21:01:29,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2022-11-18 21:01:29,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2022-11-18 21:01:29,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2022-11-18 21:01:29,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 51 remaining) [2022-11-18 21:01:29,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 51 remaining) [2022-11-18 21:01:29,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 51 remaining) [2022-11-18 21:01:29,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2022-11-18 21:01:29,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2022-11-18 21:01:29,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2022-11-18 21:01:29,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2022-11-18 21:01:29,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2022-11-18 21:01:29,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2022-11-18 21:01:29,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2022-11-18 21:01:29,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2022-11-18 21:01:29,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2022-11-18 21:01:29,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2022-11-18 21:01:29,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2022-11-18 21:01:29,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2022-11-18 21:01:29,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2022-11-18 21:01:29,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2022-11-18 21:01:29,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2022-11-18 21:01:29,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2022-11-18 21:01:29,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2022-11-18 21:01:29,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2022-11-18 21:01:29,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 21:01:29,242 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:29,249 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 21:01:29,249 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:01:29,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:01:29 BasicIcfg [2022-11-18 21:01:29,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:01:29,257 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:01:29,257 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:01:29,257 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:01:29,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:01:16" (3/4) ... [2022-11-18 21:01:29,261 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 21:01:29,269 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 21:01:29,269 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 21:01:29,270 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-18 21:01:29,276 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-18 21:01:29,277 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 21:01:29,277 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 21:01:29,277 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 21:01:29,325 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:01:29,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:01:29,326 INFO L158 Benchmark]: Toolchain (without parser) took 14490.91ms. Allocated memory was 96.5MB in the beginning and 595.6MB in the end (delta: 499.1MB). Free memory was 62.1MB in the beginning and 442.9MB in the end (delta: -380.8MB). Peak memory consumption was 119.1MB. Max. memory is 16.1GB. [2022-11-18 21:01:29,326 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory was 67.1MB in the beginning and 67.0MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:01:29,327 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.65ms. Allocated memory is still 96.5MB. Free memory was 62.0MB in the beginning and 71.4MB in the end (delta: -9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 21:01:29,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.53ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 68.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:01:29,328 INFO L158 Benchmark]: Boogie Preprocessor took 66.65ms. Allocated memory is still 96.5MB. Free memory was 68.9MB in the beginning and 67.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:01:29,328 INFO L158 Benchmark]: RCFGBuilder took 901.62ms. Allocated memory is still 96.5MB. Free memory was 67.2MB in the beginning and 43.3MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-18 21:01:29,329 INFO L158 Benchmark]: TraceAbstraction took 12937.31ms. Allocated memory was 96.5MB in the beginning and 595.6MB in the end (delta: 499.1MB). Free memory was 42.5MB in the beginning and 446.1MB in the end (delta: -403.6MB). Peak memory consumption was 363.1MB. Max. memory is 16.1GB. [2022-11-18 21:01:29,329 INFO L158 Benchmark]: Witness Printer took 68.19ms. Allocated memory is still 595.6MB. Free memory was 446.1MB in the beginning and 442.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 21:01:29,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory was 67.1MB in the beginning and 67.0MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 447.65ms. Allocated memory is still 96.5MB. Free memory was 62.0MB in the beginning and 71.4MB in the end (delta: -9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.53ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 68.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.65ms. Allocated memory is still 96.5MB. Free memory was 68.9MB in the beginning and 67.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 901.62ms. Allocated memory is still 96.5MB. Free memory was 67.2MB in the beginning and 43.3MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 12937.31ms. Allocated memory was 96.5MB in the beginning and 595.6MB in the end (delta: 499.1MB). Free memory was 42.5MB in the beginning and 446.1MB in the end (delta: -403.6MB). Peak memory consumption was 363.1MB. Max. memory is 16.1GB. * Witness Printer took 68.19ms. Allocated memory is still 595.6MB. Free memory was 446.1MB in the beginning and 442.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: 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, 498 locations, 51 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: 12.7s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 167 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 469 IncrementalHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 167 mSDtfsCounter, 469 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=681occurred in iteration=15, InterpolantAutomatonStates: 72, 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, 2.6s InterpolantComputationTime, 1835 NumberOfCodeBlocks, 1835 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1814 ConstructedInterpolants, 0 QuantifiedInterpolants, 2093 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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 30 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 21:01:29,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4b84-bfad-44f0-9616-6439cb7038fa/bin/uautomizer-TMbwUNV5ro/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