./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ --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 fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db --- 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-dbf71c6-m [2022-10-17 10:51:59,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:51:59,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:51:59,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:51:59,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:51:59,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:51:59,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:51:59,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:51:59,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:51:59,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:51:59,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:51:59,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:51:59,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:51:59,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:51:59,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:51:59,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:51:59,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:51:59,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:51:59,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:51:59,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:51:59,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:51:59,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:51:59,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:51:59,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:51:59,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:51:59,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:51:59,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:51:59,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:51:59,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:51:59,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:51:59,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:51:59,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:51:59,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:51:59,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:51:59,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:51:59,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:51:59,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:51:59,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:51:59,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:51:59,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:51:59,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:51:59,715 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-10-17 10:51:59,758 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:51:59,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:51:59,759 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:51:59,760 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:51:59,761 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:51:59,761 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:51:59,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:51:59,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:51:59,762 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:51:59,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:51:59,763 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:51:59,764 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:51:59,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:51:59,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:51:59,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:51:59,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:51:59,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:51:59,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:51:59,765 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-10-17 10:51:59,765 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:51:59,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:51:59,766 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:51:59,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:51:59,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:51:59,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:51:59,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:51:59,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:51:59,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:51:59,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:51:59,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:51:59,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:51:59,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:51:59,770 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:51:59,770 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:51:59,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:51:59,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db [2022-10-17 10:52:00,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:52:00,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:52:00,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:52:00,076 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:52:00,076 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:52:00,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-10-17 10:52:00,152 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/data/dfdf193cc/0f18d15751e146d9bee2629f7fb8f58c/FLAG52b64d494 [2022-10-17 10:52:00,735 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:52:00,736 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-10-17 10:52:00,764 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/data/dfdf193cc/0f18d15751e146d9bee2629f7fb8f58c/FLAG52b64d494 [2022-10-17 10:52:00,975 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/data/dfdf193cc/0f18d15751e146d9bee2629f7fb8f58c [2022-10-17 10:52:00,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:52:00,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:52:00,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:52:00,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:52:00,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:52:01,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:52:00" (1/1) ... [2022-10-17 10:52:01,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41896b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:01, skipping insertion in model container [2022-10-17 10:52:01,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:52:00" (1/1) ... [2022-10-17 10:52:01,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:52:01,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:52:01,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-10-17 10:52:01,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:52:01,914 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:52:01,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-10-17 10:52:01,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:52:02,133 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:52:02,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:02 WrapperNode [2022-10-17 10:52:02,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:52:02,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:52:02,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:52:02,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:52:02,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:02" (1/1) ... [2022-10-17 10:52:02,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:02" (1/1) ... [2022-10-17 10:52:02,243 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 201 [2022-10-17 10:52:02,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:52:02,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:52:02,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:52:02,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:52:02,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:02" (1/1) ... [2022-10-17 10:52:02,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:02" (1/1) ... [2022-10-17 10:52:02,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:02" (1/1) ... [2022-10-17 10:52:02,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:02" (1/1) ... [2022-10-17 10:52:02,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:02" (1/1) ... [2022-10-17 10:52:02,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:02" (1/1) ... [2022-10-17 10:52:02,304 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:02" (1/1) ... [2022-10-17 10:52:02,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:02" (1/1) ... [2022-10-17 10:52:02,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:52:02,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:52:02,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:52:02,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:52:02,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:02" (1/1) ... [2022-10-17 10:52:02,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:52:02,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:52:02,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:52:02,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc87721-f775-491d-9217-5cda525e62c8/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:52:02,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:52:02,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:52:02,421 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-10-17 10:52:02,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:52:02,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:52:02,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:52:02,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:52:02,426 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-10-17 10:52:02,427 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-10-17 10:52:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:52:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:52:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:52:02,428 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:52:02,799 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:52:02,801 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:52:03,378 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:52:03,399 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:52:03,399 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:52:03,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:52:03 BoogieIcfgContainer [2022-10-17 10:52:03,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:52:03,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:52:03,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:52:03,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:52:03,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:52:00" (1/3) ... [2022-10-17 10:52:03,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35eb3c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:52:03, skipping insertion in model container [2022-10-17 10:52:03,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:52:02" (2/3) ... [2022-10-17 10:52:03,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35eb3c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:52:03, skipping insertion in model container [2022-10-17 10:52:03,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:52:03" (3/3) ... [2022-10-17 10:52:03,413 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-10-17 10:52:03,421 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:52:03,432 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:52:03,432 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-10-17 10:52:03,432 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:52:03,565 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-17 10:52:03,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 311 places, 313 transitions, 642 flow [2022-10-17 10:52:03,779 INFO L130 PetriNetUnfolder]: 10/390 cut-off events. [2022-10-17 10:52:03,779 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-10-17 10:52:03,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 390 events. 10/390 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 822 event pairs, 0 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 221. Up to 4 conditions per place. [2022-10-17 10:52:03,789 INFO L82 GeneralOperation]: Start removeDead. Operand has 311 places, 313 transitions, 642 flow [2022-10-17 10:52:03,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 309 places, 310 transitions, 632 flow [2022-10-17 10:52:03,826 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:52:03,835 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;@7d7345e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:52:03,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2022-10-17 10:52:03,857 INFO L130 PetriNetUnfolder]: 0/43 cut-off events. [2022-10-17 10:52:03,857 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:52:03,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:52:03,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:52:03,859 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-10-17 10:52:03,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:52:03,865 INFO L85 PathProgramCache]: Analyzing trace with hash 548001862, now seen corresponding path program 1 times [2022-10-17 10:52:03,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:52:03,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671711889] [2022-10-17 10:52:03,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:52:03,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:52:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:52:05,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:52:05,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:52:05,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671711889] [2022-10-17 10:52:05,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671711889] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:52:05,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:52:05,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:52:05,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228180477] [2022-10-17 10:52:05,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:52:05,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:52:05,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:52:05,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:52:05,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:52:05,169 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 313 [2022-10-17 10:52:05,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 310 transitions, 632 flow. Second operand has 6 states, 6 states have (on average 180.83333333333334) internal successors, (1085), 6 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:05,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:52:05,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 313 [2022-10-17 10:52:05,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:52:15,174 INFO L130 PetriNetUnfolder]: 20989/45393 cut-off events. [2022-10-17 10:52:15,174 INFO L131 PetriNetUnfolder]: For 80/85 co-relation queries the response was YES. [2022-10-17 10:52:15,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77864 conditions, 45393 events. 20989/45393 cut-off events. For 80/85 co-relation queries the response was YES. Maximal size of possible extension queue 1034. Compared 456495 event pairs, 20988 based on Foata normal form. 624/39633 useless extension candidates. Maximal degree in co-relation 76972. Up to 32403 conditions per place. [2022-10-17 10:52:15,510 INFO L137 encePairwiseOnDemand]: 301/313 looper letters, 116 selfloop transitions, 5 changer transitions 4/297 dead transitions. [2022-10-17 10:52:15,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 297 transitions, 848 flow [2022-10-17 10:52:15,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:52:15,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:52:15,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1202 transitions. [2022-10-17 10:52:15,531 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6400425985090522 [2022-10-17 10:52:15,532 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1202 transitions. [2022-10-17 10:52:15,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1202 transitions. [2022-10-17 10:52:15,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:52:15,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1202 transitions. [2022-10-17 10:52:15,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 200.33333333333334) internal successors, (1202), 6 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:15,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:15,559 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:15,561 INFO L175 Difference]: Start difference. First operand has 309 places, 310 transitions, 632 flow. Second operand 6 states and 1202 transitions. [2022-10-17 10:52:15,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 297 transitions, 848 flow [2022-10-17 10:52:15,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 297 transitions, 840 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-10-17 10:52:15,583 INFO L231 Difference]: Finished difference. Result has 303 places, 293 transitions, 600 flow [2022-10-17 10:52:15,586 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=600, PETRI_PLACES=303, PETRI_TRANSITIONS=293} [2022-10-17 10:52:15,590 INFO L287 CegarLoopForPetriNet]: 309 programPoint places, -6 predicate places. [2022-10-17 10:52:15,590 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 293 transitions, 600 flow [2022-10-17 10:52:15,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.83333333333334) internal successors, (1085), 6 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:15,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:52:15,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:52:15,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:52:15,593 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-10-17 10:52:15,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:52:15,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1921841547, now seen corresponding path program 1 times [2022-10-17 10:52:15,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:52:15,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269932077] [2022-10-17 10:52:15,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:52:15,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:52:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:52:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:52:16,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:52:16,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269932077] [2022-10-17 10:52:16,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269932077] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:52:16,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:52:16,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:52:16,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584128820] [2022-10-17 10:52:16,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:52:16,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:52:16,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:52:16,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:52:16,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:52:16,039 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 313 [2022-10-17 10:52:16,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 293 transitions, 600 flow. Second operand has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:16,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:52:16,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 313 [2022-10-17 10:52:16,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:52:23,437 INFO L130 PetriNetUnfolder]: 20989/45853 cut-off events. [2022-10-17 10:52:23,438 INFO L131 PetriNetUnfolder]: For 21/26 co-relation queries the response was YES. [2022-10-17 10:52:23,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78287 conditions, 45853 events. 20989/45853 cut-off events. For 21/26 co-relation queries the response was YES. Maximal size of possible extension queue 1034. Compared 464651 event pairs, 20988 based on Foata normal form. 0/39453 useless extension candidates. Maximal degree in co-relation 78225. Up to 32402 conditions per place. [2022-10-17 10:52:23,715 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 115 selfloop transitions, 5 changer transitions 0/292 dead transitions. [2022-10-17 10:52:23,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 292 transitions, 838 flow [2022-10-17 10:52:23,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:52:23,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:52:23,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1195 transitions. [2022-10-17 10:52:23,722 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6363152289669861 [2022-10-17 10:52:23,723 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1195 transitions. [2022-10-17 10:52:23,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1195 transitions. [2022-10-17 10:52:23,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:52:23,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1195 transitions. [2022-10-17 10:52:23,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.16666666666666) internal successors, (1195), 6 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:23,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:23,737 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:23,738 INFO L175 Difference]: Start difference. First operand has 303 places, 293 transitions, 600 flow. Second operand 6 states and 1195 transitions. [2022-10-17 10:52:23,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 292 transitions, 838 flow [2022-10-17 10:52:23,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 292 transitions, 828 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-10-17 10:52:23,748 INFO L231 Difference]: Finished difference. Result has 298 places, 292 transitions, 598 flow [2022-10-17 10:52:23,749 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=598, PETRI_PLACES=298, PETRI_TRANSITIONS=292} [2022-10-17 10:52:23,751 INFO L287 CegarLoopForPetriNet]: 309 programPoint places, -11 predicate places. [2022-10-17 10:52:23,751 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 292 transitions, 598 flow [2022-10-17 10:52:23,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:23,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:52:23,755 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:52:23,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:52:23,756 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-10-17 10:52:23,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:52:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1279867959, now seen corresponding path program 1 times [2022-10-17 10:52:23,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:52:23,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113136393] [2022-10-17 10:52:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:52:23,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:52:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:52:24,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:52:24,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:52:24,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113136393] [2022-10-17 10:52:24,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113136393] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:52:24,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:52:24,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:52:24,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138866259] [2022-10-17 10:52:24,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:52:24,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:52:24,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:52:24,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:52:24,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:52:24,281 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 313 [2022-10-17 10:52:24,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 292 transitions, 598 flow. Second operand has 6 states, 6 states have (on average 184.66666666666666) internal successors, (1108), 6 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:24,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:52:24,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 313 [2022-10-17 10:52:24,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:52:31,302 INFO L130 PetriNetUnfolder]: 20989/45837 cut-off events. [2022-10-17 10:52:31,303 INFO L131 PetriNetUnfolder]: For 21/26 co-relation queries the response was YES. [2022-10-17 10:52:31,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78269 conditions, 45837 events. 20989/45837 cut-off events. For 21/26 co-relation queries the response was YES. Maximal size of possible extension queue 1034. Compared 464717 event pairs, 18324 based on Foata normal form. 0/39482 useless extension candidates. Maximal degree in co-relation 78193. Up to 32379 conditions per place. [2022-10-17 10:52:31,517 INFO L137 encePairwiseOnDemand]: 305/313 looper letters, 120 selfloop transitions, 7 changer transitions 0/301 dead transitions. [2022-10-17 10:52:31,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 301 transitions, 871 flow [2022-10-17 10:52:31,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:52:31,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:52:31,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1214 transitions. [2022-10-17 10:52:31,523 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6464323748668797 [2022-10-17 10:52:31,524 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1214 transitions. [2022-10-17 10:52:31,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1214 transitions. [2022-10-17 10:52:31,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:52:31,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1214 transitions. [2022-10-17 10:52:31,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 202.33333333333334) internal successors, (1214), 6 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:31,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:31,538 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:31,538 INFO L175 Difference]: Start difference. First operand has 298 places, 292 transitions, 598 flow. Second operand 6 states and 1214 transitions. [2022-10-17 10:52:31,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 301 transitions, 871 flow [2022-10-17 10:52:31,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 301 transitions, 861 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-10-17 10:52:31,548 INFO L231 Difference]: Finished difference. Result has 298 places, 294 transitions, 616 flow [2022-10-17 10:52:31,548 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=616, PETRI_PLACES=298, PETRI_TRANSITIONS=294} [2022-10-17 10:52:31,551 INFO L287 CegarLoopForPetriNet]: 309 programPoint places, -11 predicate places. [2022-10-17 10:52:31,551 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 294 transitions, 616 flow [2022-10-17 10:52:31,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.66666666666666) internal successors, (1108), 6 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:52:31,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:52:31,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:52:31,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:52:31,553 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-10-17 10:52:31,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:52:31,554 INFO L85 PathProgramCache]: Analyzing trace with hash -302044369, now seen corresponding path program 1 times [2022-10-17 10:52:31,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:52:31,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643266181] [2022-10-17 10:52:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:52:31,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:52:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat