./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/condvar.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8 --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 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a --- 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-2329fc7 [2022-12-13 21:20:20,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:20:20,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:20:20,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:20:20,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:20:20,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:20:20,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:20:20,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:20:20,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:20:20,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:20:20,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:20:20,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:20:20,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:20:20,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:20:20,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:20:20,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:20:20,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:20:20,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:20:20,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:20:20,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:20:20,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:20:20,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:20:20,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:20:20,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:20:20,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:20:20,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:20:20,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:20:20,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:20:20,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:20:20,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:20:20,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:20:20,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:20:20,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:20:20,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:20:20,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:20:20,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:20:20,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:20:20,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:20:20,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:20:20,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:20:20,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:20:20,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 21:20:20,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:20:20,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:20:20,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:20:20,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:20:20,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:20:20,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:20:20,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:20:20,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:20:20,384 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:20:20,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:20:20,384 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:20:20,385 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:20:20,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:20:20,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:20:20,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:20:20,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:20:20,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:20:20,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:20:20,386 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 21:20:20,386 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:20:20,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:20:20,386 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:20:20,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:20:20,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:20:20,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:20:20,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:20:20,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:20:20,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:20:20,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:20:20,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:20:20,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:20:20,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:20:20,388 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:20:20,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:20:20,389 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:20:20,389 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:20:20,389 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:20:20,389 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a [2022-12-13 21:20:20,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:20:20,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:20:20,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:20:20,598 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:20:20,599 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:20:20,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-divine/condvar.i [2022-12-13 21:20:23,107 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:20:23,300 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:20:23,301 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/sv-benchmarks/c/pthread-divine/condvar.i [2022-12-13 21:20:23,310 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/data/ad8349b79/290286e86fe444f5886330a86e9e6248/FLAG7e5928288 [2022-12-13 21:20:23,661 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/data/ad8349b79/290286e86fe444f5886330a86e9e6248 [2022-12-13 21:20:23,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:20:23,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:20:23,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:20:23,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:20:23,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:20:23,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:20:23" (1/1) ... [2022-12-13 21:20:23,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ac031e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:23, skipping insertion in model container [2022-12-13 21:20:23,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:20:23" (1/1) ... [2022-12-13 21:20:23,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:20:23,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:20:23,820 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 21:20:23,943 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/sv-benchmarks/c/pthread-divine/condvar.i[30458,30471] [2022-12-13 21:20:23,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:20:23,958 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:20:23,967 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 21:20:23,983 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/sv-benchmarks/c/pthread-divine/condvar.i[30458,30471] [2022-12-13 21:20:23,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:20:24,008 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:20:24,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:24 WrapperNode [2022-12-13 21:20:24,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:20:24,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:20:24,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:20:24,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:20:24,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:24" (1/1) ... [2022-12-13 21:20:24,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:24" (1/1) ... [2022-12-13 21:20:24,038 INFO L138 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2022-12-13 21:20:24,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:20:24,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:20:24,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:20:24,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:20:24,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:24" (1/1) ... [2022-12-13 21:20:24,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:24" (1/1) ... [2022-12-13 21:20:24,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:24" (1/1) ... [2022-12-13 21:20:24,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:24" (1/1) ... [2022-12-13 21:20:24,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:24" (1/1) ... [2022-12-13 21:20:24,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:24" (1/1) ... [2022-12-13 21:20:24,055 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:24" (1/1) ... [2022-12-13 21:20:24,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:24" (1/1) ... [2022-12-13 21:20:24,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:20:24,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:20:24,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:20:24,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:20:24,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:24" (1/1) ... [2022-12-13 21:20:24,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:20:24,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:20:24,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:20:24,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:20:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:20:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:20:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 21:20:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:20:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:20:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:20:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:20:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-12-13 21:20:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-12-13 21:20:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:20:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:20:24,116 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 21:20:24,220 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:20:24,222 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:20:24,374 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:20:24,381 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:20:24,381 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 21:20:24,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:20:24 BoogieIcfgContainer [2022-12-13 21:20:24,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:20:24,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:20:24,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:20:24,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:20:24,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:20:23" (1/3) ... [2022-12-13 21:20:24,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3e2f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:20:24, skipping insertion in model container [2022-12-13 21:20:24,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:20:24" (2/3) ... [2022-12-13 21:20:24,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3e2f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:20:24, skipping insertion in model container [2022-12-13 21:20:24,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:20:24" (3/3) ... [2022-12-13 21:20:24,392 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar.i [2022-12-13 21:20:24,401 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 21:20:24,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:20:24,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-12-13 21:20:24,410 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 21:20:24,455 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 21:20:24,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 99 transitions, 206 flow [2022-12-13 21:20:24,519 INFO L130 PetriNetUnfolder]: 5/98 cut-off events. [2022-12-13 21:20:24,519 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 21:20:24,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 5/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 116 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2022-12-13 21:20:24,523 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 99 transitions, 206 flow [2022-12-13 21:20:24,535 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 91 transitions, 185 flow [2022-12-13 21:20:24,539 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:20:24,549 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 91 transitions, 185 flow [2022-12-13 21:20:24,557 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 91 transitions, 185 flow [2022-12-13 21:20:24,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 91 transitions, 185 flow [2022-12-13 21:20:24,576 INFO L130 PetriNetUnfolder]: 5/91 cut-off events. [2022-12-13 21:20:24,576 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:20:24,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 5/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 117 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2022-12-13 21:20:24,577 INFO L119 LiptonReduction]: Number of co-enabled transitions 1176 [2022-12-13 21:20:27,155 INFO L134 LiptonReduction]: Checked pairs total: 3151 [2022-12-13 21:20:27,155 INFO L136 LiptonReduction]: Total number of compositions: 76 [2022-12-13 21:20:27,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:20:27,170 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;@309e7e94, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:20:27,170 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 21:20:27,172 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-13 21:20:27,172 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:20:27,173 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:20:27,173 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 21:20:27,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 21:20:27,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:27,177 INFO L85 PathProgramCache]: Analyzing trace with hash 330732368, now seen corresponding path program 1 times [2022-12-13 21:20:27,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:27,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817328321] [2022-12-13 21:20:27,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:27,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:27,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:27,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:27,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817328321] [2022-12-13 21:20:27,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817328321] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:20:27,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:20:27,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 21:20:27,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521351066] [2022-12-13 21:20:27,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:20:27,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:20:27,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:27,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:20:27,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:20:27,355 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 175 [2022-12-13 21:20:27,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 24 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:20:27,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 175 [2022-12-13 21:20:27,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:20:27,392 INFO L130 PetriNetUnfolder]: 19/54 cut-off events. [2022-12-13 21:20:27,392 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:20:27,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 54 events. 19/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 134 event pairs, 10 based on Foata normal form. 7/48 useless extension candidates. Maximal degree in co-relation 88. Up to 39 conditions per place. [2022-12-13 21:20:27,393 INFO L137 encePairwiseOnDemand]: 172/175 looper letters, 11 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2022-12-13 21:20:27,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 21 transitions, 67 flow [2022-12-13 21:20:27,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:20:27,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 21:20:27,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 202 transitions. [2022-12-13 21:20:27,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5771428571428572 [2022-12-13 21:20:27,403 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 202 transitions. [2022-12-13 21:20:27,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 202 transitions. [2022-12-13 21:20:27,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:20:27,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 202 transitions. [2022-12-13 21:20:27,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,411 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,412 INFO L175 Difference]: Start difference. First operand has 24 places, 24 transitions, 51 flow. Second operand 2 states and 202 transitions. [2022-12-13 21:20:27,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 21 transitions, 67 flow [2022-12-13 21:20:27,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 21:20:27,416 INFO L231 Difference]: Finished difference. Result has 23 places, 21 transitions, 44 flow [2022-12-13 21:20:27,417 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=23, PETRI_TRANSITIONS=21} [2022-12-13 21:20:27,420 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2022-12-13 21:20:27,420 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 21 transitions, 44 flow [2022-12-13 21:20:27,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:20:27,420 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 21:20:27,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:20:27,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 21:20:27,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:27,421 INFO L85 PathProgramCache]: Analyzing trace with hash 330732405, now seen corresponding path program 1 times [2022-12-13 21:20:27,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:27,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179307671] [2022-12-13 21:20:27,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:27,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:27,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:27,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:27,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179307671] [2022-12-13 21:20:27,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179307671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:20:27,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:20:27,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:20:27,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163554725] [2022-12-13 21:20:27,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:20:27,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:20:27,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:27,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:20:27,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:20:27,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 175 [2022-12-13 21:20:27,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:20:27,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 175 [2022-12-13 21:20:27,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:20:27,536 INFO L130 PetriNetUnfolder]: 41/119 cut-off events. [2022-12-13 21:20:27,537 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:20:27,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 119 events. 41/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 456 event pairs, 6 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 207. Up to 52 conditions per place. [2022-12-13 21:20:27,538 INFO L137 encePairwiseOnDemand]: 171/175 looper letters, 21 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2022-12-13 21:20:27,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 31 transitions, 112 flow [2022-12-13 21:20:27,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:20:27,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:20:27,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2022-12-13 21:20:27,542 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5619047619047619 [2022-12-13 21:20:27,542 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 295 transitions. [2022-12-13 21:20:27,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 295 transitions. [2022-12-13 21:20:27,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:20:27,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 295 transitions. [2022-12-13 21:20:27,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,549 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,549 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 44 flow. Second operand 3 states and 295 transitions. [2022-12-13 21:20:27,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 31 transitions, 112 flow [2022-12-13 21:20:27,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 31 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 21:20:27,550 INFO L231 Difference]: Finished difference. Result has 27 places, 24 transitions, 70 flow [2022-12-13 21:20:27,551 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=27, PETRI_TRANSITIONS=24} [2022-12-13 21:20:27,551 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2022-12-13 21:20:27,552 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 70 flow [2022-12-13 21:20:27,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,552 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:20:27,552 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 21:20:27,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:20:27,553 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 21:20:27,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:27,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1662770491, now seen corresponding path program 1 times [2022-12-13 21:20:27,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:27,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649964036] [2022-12-13 21:20:27,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:27,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:27,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:27,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:27,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649964036] [2022-12-13 21:20:27,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649964036] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:20:27,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:20:27,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:20:27,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009244018] [2022-12-13 21:20:27,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:20:27,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:20:27,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:27,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:20:27,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:20:27,615 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 175 [2022-12-13 21:20:27,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:20:27,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 175 [2022-12-13 21:20:27,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:20:27,652 INFO L130 PetriNetUnfolder]: 38/105 cut-off events. [2022-12-13 21:20:27,652 INFO L131 PetriNetUnfolder]: For 9/12 co-relation queries the response was YES. [2022-12-13 21:20:27,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 105 events. 38/105 cut-off events. For 9/12 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 456 event pairs, 22 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 213. Up to 76 conditions per place. [2022-12-13 21:20:27,653 INFO L137 encePairwiseOnDemand]: 171/175 looper letters, 17 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2022-12-13 21:20:27,653 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 120 flow [2022-12-13 21:20:27,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:20:27,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:20:27,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2022-12-13 21:20:27,655 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5352380952380953 [2022-12-13 21:20:27,655 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 281 transitions. [2022-12-13 21:20:27,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 281 transitions. [2022-12-13 21:20:27,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:20:27,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 281 transitions. [2022-12-13 21:20:27,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,659 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,659 INFO L175 Difference]: Start difference. First operand has 27 places, 24 transitions, 70 flow. Second operand 3 states and 281 transitions. [2022-12-13 21:20:27,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 120 flow [2022-12-13 21:20:27,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:20:27,661 INFO L231 Difference]: Finished difference. Result has 28 places, 26 transitions, 83 flow [2022-12-13 21:20:27,661 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=28, PETRI_TRANSITIONS=26} [2022-12-13 21:20:27,662 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2022-12-13 21:20:27,662 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 26 transitions, 83 flow [2022-12-13 21:20:27,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,662 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:20:27,662 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 21:20:27,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:20:27,663 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 21:20:27,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:27,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1662767084, now seen corresponding path program 1 times [2022-12-13 21:20:27,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:27,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285275277] [2022-12-13 21:20:27,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:27,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:27,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:27,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:27,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285275277] [2022-12-13 21:20:27,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285275277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:20:27,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:20:27,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:20:27,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716035599] [2022-12-13 21:20:27,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:20:27,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:20:27,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:27,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:20:27,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:20:27,719 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 175 [2022-12-13 21:20:27,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:20:27,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 175 [2022-12-13 21:20:27,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:20:27,754 INFO L130 PetriNetUnfolder]: 37/120 cut-off events. [2022-12-13 21:20:27,755 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-12-13 21:20:27,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 120 events. 37/120 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 511 event pairs, 16 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 259. Up to 65 conditions per place. [2022-12-13 21:20:27,756 INFO L137 encePairwiseOnDemand]: 172/175 looper letters, 16 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2022-12-13 21:20:27,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 32 transitions, 138 flow [2022-12-13 21:20:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:20:27,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:20:27,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2022-12-13 21:20:27,758 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2022-12-13 21:20:27,758 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2022-12-13 21:20:27,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2022-12-13 21:20:27,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:20:27,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2022-12-13 21:20:27,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,761 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 83 flow. Second operand 3 states and 287 transitions. [2022-12-13 21:20:27,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 32 transitions, 138 flow [2022-12-13 21:20:27,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 32 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 21:20:27,763 INFO L231 Difference]: Finished difference. Result has 30 places, 28 transitions, 103 flow [2022-12-13 21:20:27,763 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=30, PETRI_TRANSITIONS=28} [2022-12-13 21:20:27,764 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2022-12-13 21:20:27,764 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 103 flow [2022-12-13 21:20:27,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,765 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:20:27,765 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:20:27,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:20:27,765 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 21:20:27,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:27,766 INFO L85 PathProgramCache]: Analyzing trace with hash 194356497, now seen corresponding path program 1 times [2022-12-13 21:20:27,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:27,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766568740] [2022-12-13 21:20:27,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:27,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:27,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:27,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766568740] [2022-12-13 21:20:27,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766568740] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:20:27,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:20:27,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:20:27,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666352308] [2022-12-13 21:20:27,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:20:27,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:20:27,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:27,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:20:27,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:20:27,808 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 175 [2022-12-13 21:20:27,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:20:27,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 175 [2022-12-13 21:20:27,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:20:27,861 INFO L130 PetriNetUnfolder]: 83/205 cut-off events. [2022-12-13 21:20:27,861 INFO L131 PetriNetUnfolder]: For 76/86 co-relation queries the response was YES. [2022-12-13 21:20:27,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 205 events. 83/205 cut-off events. For 76/86 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 888 event pairs, 26 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 518. Up to 107 conditions per place. [2022-12-13 21:20:27,863 INFO L137 encePairwiseOnDemand]: 171/175 looper letters, 25 selfloop transitions, 4 changer transitions 1/38 dead transitions. [2022-12-13 21:20:27,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 38 transitions, 201 flow [2022-12-13 21:20:27,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:20:27,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:20:27,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2022-12-13 21:20:27,865 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5619047619047619 [2022-12-13 21:20:27,865 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 295 transitions. [2022-12-13 21:20:27,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 295 transitions. [2022-12-13 21:20:27,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:20:27,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 295 transitions. [2022-12-13 21:20:27,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,868 INFO L175 Difference]: Start difference. First operand has 30 places, 28 transitions, 103 flow. Second operand 3 states and 295 transitions. [2022-12-13 21:20:27,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 38 transitions, 201 flow [2022-12-13 21:20:27,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 38 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 21:20:27,870 INFO L231 Difference]: Finished difference. Result has 33 places, 30 transitions, 128 flow [2022-12-13 21:20:27,870 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2022-12-13 21:20:27,871 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 9 predicate places. [2022-12-13 21:20:27,871 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 128 flow [2022-12-13 21:20:27,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:27,871 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:20:27,872 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:20:27,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 21:20:27,872 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 21:20:27,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:27,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1743512974, now seen corresponding path program 1 times [2022-12-13 21:20:27,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:27,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346875653] [2022-12-13 21:20:27,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:27,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:27,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:27,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:27,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346875653] [2022-12-13 21:20:27,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346875653] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:20:27,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845544119] [2022-12-13 21:20:27,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:27,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:20:27,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:20:27,922 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:20:27,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 21:20:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:27,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:20:27,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:20:27,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 21:20:27,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:20:27,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845544119] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:20:27,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:20:27,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 21:20:27,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56432419] [2022-12-13 21:20:27,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:20:27,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:20:27,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:27,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:20:27,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:20:28,000 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 175 [2022-12-13 21:20:28,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:20:28,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 175 [2022-12-13 21:20:28,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:20:28,038 INFO L130 PetriNetUnfolder]: 73/191 cut-off events. [2022-12-13 21:20:28,038 INFO L131 PetriNetUnfolder]: For 102/106 co-relation queries the response was YES. [2022-12-13 21:20:28,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 511 conditions, 191 events. 73/191 cut-off events. For 102/106 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 846 event pairs, 31 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 503. Up to 124 conditions per place. [2022-12-13 21:20:28,039 INFO L137 encePairwiseOnDemand]: 171/175 looper letters, 17 selfloop transitions, 5 changer transitions 2/36 dead transitions. [2022-12-13 21:20:28,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 192 flow [2022-12-13 21:20:28,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:20:28,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:20:28,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2022-12-13 21:20:28,041 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2022-12-13 21:20:28,041 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2022-12-13 21:20:28,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2022-12-13 21:20:28,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:20:28,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2022-12-13 21:20:28,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,044 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 128 flow. Second operand 3 states and 280 transitions. [2022-12-13 21:20:28,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 192 flow [2022-12-13 21:20:28,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:20:28,047 INFO L231 Difference]: Finished difference. Result has 34 places, 32 transitions, 149 flow [2022-12-13 21:20:28,047 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=34, PETRI_TRANSITIONS=32} [2022-12-13 21:20:28,047 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 10 predicate places. [2022-12-13 21:20:28,048 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 32 transitions, 149 flow [2022-12-13 21:20:28,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,048 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:20:28,048 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:20:28,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:20:28,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:20:28,250 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 21:20:28,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:28,252 INFO L85 PathProgramCache]: Analyzing trace with hash -520845158, now seen corresponding path program 1 times [2022-12-13 21:20:28,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:28,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72523898] [2022-12-13 21:20:28,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:28,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:28,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:28,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:28,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72523898] [2022-12-13 21:20:28,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72523898] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:20:28,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:20:28,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:20:28,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330182381] [2022-12-13 21:20:28,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:20:28,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:20:28,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:28,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:20:28,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:20:28,424 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 175 [2022-12-13 21:20:28,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:20:28,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 175 [2022-12-13 21:20:28,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:20:28,447 INFO L130 PetriNetUnfolder]: 32/97 cut-off events. [2022-12-13 21:20:28,447 INFO L131 PetriNetUnfolder]: For 56/59 co-relation queries the response was YES. [2022-12-13 21:20:28,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 97 events. 32/97 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 320 event pairs, 12 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 266. Up to 43 conditions per place. [2022-12-13 21:20:28,448 INFO L137 encePairwiseOnDemand]: 172/175 looper letters, 14 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2022-12-13 21:20:28,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 149 flow [2022-12-13 21:20:28,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:20:28,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:20:28,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2022-12-13 21:20:28,449 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5485714285714286 [2022-12-13 21:20:28,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2022-12-13 21:20:28,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2022-12-13 21:20:28,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:20:28,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2022-12-13 21:20:28,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,451 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,451 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 149 flow. Second operand 3 states and 288 transitions. [2022-12-13 21:20:28,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 149 flow [2022-12-13 21:20:28,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 130 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-12-13 21:20:28,452 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 102 flow [2022-12-13 21:20:28,453 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2022-12-13 21:20:28,453 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2022-12-13 21:20:28,453 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 102 flow [2022-12-13 21:20:28,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,453 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:20:28,453 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:20:28,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 21:20:28,454 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 21:20:28,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:28,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1436224343, now seen corresponding path program 1 times [2022-12-13 21:20:28,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:28,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017269612] [2022-12-13 21:20:28,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:28,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:28,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:28,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:28,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017269612] [2022-12-13 21:20:28,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017269612] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:20:28,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974352107] [2022-12-13 21:20:28,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:28,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:20:28,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:20:28,485 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:20:28,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 21:20:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:28,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:20:28,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:20:28,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:28,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:20:28,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:28,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974352107] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:20:28,579 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:20:28,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-13 21:20:28,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415424562] [2022-12-13 21:20:28,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:20:28,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:20:28,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:28,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:20:28,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:20:28,601 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 175 [2022-12-13 21:20:28,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 102 flow. Second operand has 7 states, 7 states have (on average 91.14285714285714) internal successors, (638), 7 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:20:28,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 175 [2022-12-13 21:20:28,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:20:28,658 INFO L130 PetriNetUnfolder]: 39/123 cut-off events. [2022-12-13 21:20:28,658 INFO L131 PetriNetUnfolder]: For 31/34 co-relation queries the response was YES. [2022-12-13 21:20:28,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 123 events. 39/123 cut-off events. For 31/34 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 362 event pairs, 8 based on Foata normal form. 9/124 useless extension candidates. Maximal degree in co-relation 280. Up to 43 conditions per place. [2022-12-13 21:20:28,659 INFO L137 encePairwiseOnDemand]: 171/175 looper letters, 21 selfloop transitions, 6 changer transitions 0/39 dead transitions. [2022-12-13 21:20:28,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 39 transitions, 188 flow [2022-12-13 21:20:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:20:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:20:28,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 563 transitions. [2022-12-13 21:20:28,661 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5361904761904762 [2022-12-13 21:20:28,661 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 563 transitions. [2022-12-13 21:20:28,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 563 transitions. [2022-12-13 21:20:28,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:20:28,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 563 transitions. [2022-12-13 21:20:28,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.83333333333333) internal successors, (563), 6 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,664 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,664 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 102 flow. Second operand 6 states and 563 transitions. [2022-12-13 21:20:28,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 39 transitions, 188 flow [2022-12-13 21:20:28,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:20:28,666 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 138 flow [2022-12-13 21:20:28,666 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2022-12-13 21:20:28,667 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 13 predicate places. [2022-12-13 21:20:28,667 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 138 flow [2022-12-13 21:20:28,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 91.14285714285714) internal successors, (638), 7 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:28,667 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:20:28,668 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:20:28,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 21:20:28,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:20:28,868 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 21:20:28,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:28,869 INFO L85 PathProgramCache]: Analyzing trace with hash -459228827, now seen corresponding path program 2 times [2022-12-13 21:20:28,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:28,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133547598] [2022-12-13 21:20:28,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:28,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:28,943 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:28,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:28,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133547598] [2022-12-13 21:20:28,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133547598] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:20:28,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298099823] [2022-12-13 21:20:28,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:20:28,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:20:28,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:20:28,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:20:28,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 21:20:28,999 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 21:20:28,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:20:29,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 21:20:29,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:20:29,024 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:29,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:20:29,072 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:29,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298099823] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:20:29,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:20:29,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-12-13 21:20:29,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673248181] [2022-12-13 21:20:29,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:20:29,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:20:29,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:29,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:20:29,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:20:29,101 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 175 [2022-12-13 21:20:29,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 138 flow. Second operand has 13 states, 13 states have (on average 91.07692307692308) internal successors, (1184), 13 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:29,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:20:29,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 175 [2022-12-13 21:20:29,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:20:29,204 INFO L130 PetriNetUnfolder]: 88/228 cut-off events. [2022-12-13 21:20:29,204 INFO L131 PetriNetUnfolder]: For 229/235 co-relation queries the response was YES. [2022-12-13 21:20:29,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 228 events. 88/228 cut-off events. For 229/235 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 608 event pairs, 7 based on Foata normal form. 18/235 useless extension candidates. Maximal degree in co-relation 617. Up to 76 conditions per place. [2022-12-13 21:20:29,205 INFO L137 encePairwiseOnDemand]: 171/175 looper letters, 39 selfloop transitions, 12 changer transitions 0/63 dead transitions. [2022-12-13 21:20:29,205 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 63 transitions, 376 flow [2022-12-13 21:20:29,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 21:20:29,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 21:20:29,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1124 transitions. [2022-12-13 21:20:29,207 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5352380952380953 [2022-12-13 21:20:29,207 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1124 transitions. [2022-12-13 21:20:29,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1124 transitions. [2022-12-13 21:20:29,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:20:29,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1124 transitions. [2022-12-13 21:20:29,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 93.66666666666667) internal successors, (1124), 12 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:29,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:29,211 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:29,211 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 138 flow. Second operand 12 states and 1124 transitions. [2022-12-13 21:20:29,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 63 transitions, 376 flow [2022-12-13 21:20:29,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 63 transitions, 356 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-12-13 21:20:29,213 INFO L231 Difference]: Finished difference. Result has 54 places, 35 transitions, 226 flow [2022-12-13 21:20:29,213 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=226, PETRI_PLACES=54, PETRI_TRANSITIONS=35} [2022-12-13 21:20:29,214 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 30 predicate places. [2022-12-13 21:20:29,214 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 35 transitions, 226 flow [2022-12-13 21:20:29,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 91.07692307692308) internal successors, (1184), 13 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:29,214 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:20:29,214 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:20:29,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 21:20:29,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:20:29,415 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 21:20:29,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:29,415 INFO L85 PathProgramCache]: Analyzing trace with hash 2007663013, now seen corresponding path program 3 times [2022-12-13 21:20:29,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:29,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849292431] [2022-12-13 21:20:29,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:29,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:29,546 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:29,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:29,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849292431] [2022-12-13 21:20:29,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849292431] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:20:29,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364424479] [2022-12-13 21:20:29,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 21:20:29,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:20:29,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:20:29,548 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:20:29,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 21:20:29,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-13 21:20:29,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:20:29,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 21:20:29,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:20:29,669 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:29,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:20:29,812 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:29,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364424479] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:20:29,813 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:20:29,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-12-13 21:20:29,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996529048] [2022-12-13 21:20:29,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:20:29,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-13 21:20:29,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:29,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-13 21:20:29,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-12-13 21:20:29,865 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 175 [2022-12-13 21:20:29,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 35 transitions, 226 flow. Second operand has 25 states, 25 states have (on average 91.04) internal successors, (2276), 25 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:29,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:20:29,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 175 [2022-12-13 21:20:29,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:20:30,054 INFO L130 PetriNetUnfolder]: 111/357 cut-off events. [2022-12-13 21:20:30,054 INFO L131 PetriNetUnfolder]: For 1748/1751 co-relation queries the response was YES. [2022-12-13 21:20:30,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1206 conditions, 357 events. 111/357 cut-off events. For 1748/1751 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 993 event pairs, 8 based on Foata normal form. 36/385 useless extension candidates. Maximal degree in co-relation 1188. Up to 102 conditions per place. [2022-12-13 21:20:30,058 INFO L137 encePairwiseOnDemand]: 171/175 looper letters, 75 selfloop transitions, 24 changer transitions 0/111 dead transitions. [2022-12-13 21:20:30,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 111 transitions, 804 flow [2022-12-13 21:20:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 21:20:30,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-13 21:20:30,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2246 transitions. [2022-12-13 21:20:30,061 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5347619047619048 [2022-12-13 21:20:30,061 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2246 transitions. [2022-12-13 21:20:30,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2246 transitions. [2022-12-13 21:20:30,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:20:30,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2246 transitions. [2022-12-13 21:20:30,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 93.58333333333333) internal successors, (2246), 24 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:30,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 175.0) internal successors, (4375), 25 states have internal predecessors, (4375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:30,069 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 175.0) internal successors, (4375), 25 states have internal predecessors, (4375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:30,069 INFO L175 Difference]: Start difference. First operand has 54 places, 35 transitions, 226 flow. Second operand 24 states and 2246 transitions. [2022-12-13 21:20:30,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 111 transitions, 804 flow [2022-12-13 21:20:30,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 111 transitions, 798 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 21:20:30,072 INFO L231 Difference]: Finished difference. Result has 87 places, 48 transitions, 452 flow [2022-12-13 21:20:30,072 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=452, PETRI_PLACES=87, PETRI_TRANSITIONS=48} [2022-12-13 21:20:30,073 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 63 predicate places. [2022-12-13 21:20:30,073 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 48 transitions, 452 flow [2022-12-13 21:20:30,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 91.04) internal successors, (2276), 25 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:30,073 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:20:30,074 INFO L209 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:20:30,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 21:20:30,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 21:20:30,276 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 21:20:30,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:30,277 INFO L85 PathProgramCache]: Analyzing trace with hash -886742491, now seen corresponding path program 4 times [2022-12-13 21:20:30,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:30,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577162962] [2022-12-13 21:20:30,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:30,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,774 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:30,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:30,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577162962] [2022-12-13 21:20:30,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577162962] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:20:30,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619602642] [2022-12-13 21:20:30,774 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 21:20:30,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:20:30,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:20:30,775 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:20:30,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 21:20:30,853 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 21:20:30,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:20:30,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 21:20:30,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:20:30,937 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:30,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:20:31,413 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:20:31,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619602642] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:20:31,413 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:20:31,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 46 [2022-12-13 21:20:31,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069644721] [2022-12-13 21:20:31,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:20:31,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-12-13 21:20:31,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:31,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-12-13 21:20:31,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2022-12-13 21:20:31,486 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 175 [2022-12-13 21:20:31,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 48 transitions, 452 flow. Second operand has 46 states, 46 states have (on average 91.06521739130434) internal successors, (4189), 46 states have internal predecessors, (4189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:31,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:20:31,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 175 [2022-12-13 21:20:31,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:20:31,934 INFO L130 PetriNetUnfolder]: 286/723 cut-off events. [2022-12-13 21:20:31,934 INFO L131 PetriNetUnfolder]: For 13799/13805 co-relation queries the response was YES. [2022-12-13 21:20:31,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2826 conditions, 723 events. 286/723 cut-off events. For 13799/13805 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1846 event pairs, 7 based on Foata normal form. 63/775 useless extension candidates. Maximal degree in co-relation 2795. Up to 274 conditions per place. [2022-12-13 21:20:31,940 INFO L137 encePairwiseOnDemand]: 171/175 looper letters, 138 selfloop transitions, 45 changer transitions 0/195 dead transitions. [2022-12-13 21:20:31,940 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 195 transitions, 1762 flow [2022-12-13 21:20:31,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-13 21:20:31,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-12-13 21:20:31,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 4208 transitions. [2022-12-13 21:20:31,950 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5343492063492064 [2022-12-13 21:20:31,950 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 4208 transitions. [2022-12-13 21:20:31,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 4208 transitions. [2022-12-13 21:20:31,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:20:31,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 4208 transitions. [2022-12-13 21:20:31,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 93.5111111111111) internal successors, (4208), 45 states have internal predecessors, (4208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:31,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 175.0) internal successors, (8050), 46 states have internal predecessors, (8050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:31,963 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 175.0) internal successors, (8050), 46 states have internal predecessors, (8050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:31,964 INFO L175 Difference]: Start difference. First operand has 87 places, 48 transitions, 452 flow. Second operand 45 states and 4208 transitions. [2022-12-13 21:20:31,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 195 transitions, 1762 flow [2022-12-13 21:20:31,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 195 transitions, 1744 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-12-13 21:20:31,979 INFO L231 Difference]: Finished difference. Result has 144 places, 70 transitions, 922 flow [2022-12-13 21:20:31,979 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=922, PETRI_PLACES=144, PETRI_TRANSITIONS=70} [2022-12-13 21:20:31,979 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 120 predicate places. [2022-12-13 21:20:31,979 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 70 transitions, 922 flow [2022-12-13 21:20:31,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 91.06521739130434) internal successors, (4189), 46 states have internal predecessors, (4189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:20:31,980 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:20:31,980 INFO L209 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:20:31,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 21:20:32,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 21:20:32,182 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-12-13 21:20:32,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:32,182 INFO L85 PathProgramCache]: Analyzing trace with hash 364472727, now seen corresponding path program 5 times [2022-12-13 21:20:32,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:32,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445041666] [2022-12-13 21:20:32,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:32,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:20:32,260 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:20:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:20:32,340 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:20:32,340 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:20:32,341 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-12-13 21:20:32,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-12-13 21:20:32,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-12-13 21:20:32,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2022-12-13 21:20:32,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2022-12-13 21:20:32,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-12-13 21:20:32,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-12-13 21:20:32,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-12-13 21:20:32,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 21:20:32,343 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:20:32,349 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 21:20:32,349 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:20:32,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:20:32 BasicIcfg [2022-12-13 21:20:32,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:20:32,406 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:20:32,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:20:32,406 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:20:32,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:20:24" (3/4) ... [2022-12-13 21:20:32,409 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:20:32,409 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:20:32,409 INFO L158 Benchmark]: Toolchain (without parser) took 8744.69ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 103.5MB in the beginning and 47.6MB in the end (delta: 55.9MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. [2022-12-13 21:20:32,410 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:20:32,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.79ms. Allocated memory is still 134.2MB. Free memory was 103.5MB in the beginning and 83.5MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 21:20:32,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.33ms. Allocated memory is still 134.2MB. Free memory was 83.5MB in the beginning and 81.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:20:32,410 INFO L158 Benchmark]: Boogie Preprocessor took 18.43ms. Allocated memory is still 134.2MB. Free memory was 81.4MB in the beginning and 79.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:20:32,411 INFO L158 Benchmark]: RCFGBuilder took 325.55ms. Allocated memory is still 134.2MB. Free memory was 79.7MB in the beginning and 65.6MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 21:20:32,411 INFO L158 Benchmark]: TraceAbstraction took 8019.81ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 65.0MB in the beginning and 47.6MB in the end (delta: 17.5MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2022-12-13 21:20:32,411 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 161.5MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:20:32,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.79ms. Allocated memory is still 134.2MB. Free memory was 103.5MB in the beginning and 83.5MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.33ms. Allocated memory is still 134.2MB. Free memory was 83.5MB in the beginning and 81.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.43ms. Allocated memory is still 134.2MB. Free memory was 81.4MB in the beginning and 79.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 325.55ms. Allocated memory is still 134.2MB. Free memory was 79.7MB in the beginning and 65.6MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8019.81ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 65.0MB in the beginning and 47.6MB in the end (delta: 17.5MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 161.5MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 90 PlacesBefore, 24 PlacesAfterwards, 91 TransitionsBefore, 24 TransitionsAfterwards, 1176 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 3151 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1697, independent: 1521, independent conditional: 0, independent unconditional: 1521, dependent: 176, dependent conditional: 0, dependent unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 656, independent: 627, independent conditional: 0, independent unconditional: 627, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1697, independent: 894, independent conditional: 0, independent unconditional: 894, dependent: 147, dependent conditional: 0, dependent unconditional: 147, unknown: 656, unknown conditional: 0, unknown unconditional: 656] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 56, Positive conditional cache size: 0, Positive unconditional cache size: 56, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 704]: Data race detected Data race detected The following path leads to a data race: [L697] 0 pthread_mutex_t lock; [L698] 0 pthread_cond_t cond; [L699] 0 int x; [L700] 0 _Bool x_set = 0; [L711] 0 pthread_t t; [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0, x_set=0] [L704] 1 !x_set VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0, x_set=0] [L713] 0 int i = 0; VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41, x_set=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i [L713] 0 i++ VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42, x_set=0] [L713] COND FALSE 0 !(i <= 42) [L715] 0 x_set = 1 VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42, x_set=1, x_set = 1=156] [L704] 1 !x_set VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=42, x_set=1] Now there is a data race on ~x_set~0 between C: x_set = 1 [715] and C: !x_set [704] - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 115 locations, 8 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: 7.9s, OverallIterations: 12, TraceHistogramMax: 43, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 890 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 811 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1078 IncrementalHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 14 mSDtfsCounter, 1078 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 351 GetRequests, 257 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=922occurred in iteration=11, InterpolantAutomatonStates: 107, 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, 1.8s InterpolantComputationTime, 482 NumberOfCodeBlocks, 482 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 468 ConstructedInterpolants, 0 QuantifiedInterpolants, 1188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 960 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 1/2651 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 RESULT: Ultimate proved your program to be incorrect! [2022-12-13 21:20:32,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d44a6b-9dcd-4943-8c56-a5e8f441ce74/bin/uautomizer-uyxdKDjOR8/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE