./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS --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 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc --- 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-4e7fbc6 [2022-11-23 03:41:39,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:41:39,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:41:39,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:41:39,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:41:39,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:41:39,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:41:39,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:41:39,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:41:39,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:41:39,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:41:39,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:41:39,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:41:39,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:41:39,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:41:39,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:41:39,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:41:39,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:41:39,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:41:39,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:41:39,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:41:39,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:41:39,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:41:39,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:41:39,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:41:39,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:41:39,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:41:39,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:41:39,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:41:39,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:41:39,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:41:39,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:41:39,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:41:39,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:41:39,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:41:39,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:41:39,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:41:39,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:41:39,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:41:39,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:41:39,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:41:39,627 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-23 03:41:39,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:41:39,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:41:39,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:41:39,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:41:39,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:41:39,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:41:39,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:41:39,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:41:39,650 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:41:39,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:41:39,651 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:41:39,651 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:41:39,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:41:39,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:41:39,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:41:39,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:41:39,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:41:39,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:41:39,652 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 03:41:39,652 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:41:39,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:41:39,653 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:41:39,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:41:39,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:41:39,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:41:39,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:41:39,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:41:39,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:41:39,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:41:39,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:41:39,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:41:39,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:41:39,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:41:39,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:41:39,655 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:41:39,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:41:39,655 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_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc [2022-11-23 03:41:39,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:41:39,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:41:39,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:41:39,978 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:41:39,979 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:41:39,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i [2022-11-23 03:41:43,012 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:41:43,359 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:41:43,359 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i [2022-11-23 03:41:43,372 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/data/53fc39406/e71e1f6b8b174c9883c24b8c75629ecb/FLAG6cd9bf288 [2022-11-23 03:41:43,387 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/data/53fc39406/e71e1f6b8b174c9883c24b8c75629ecb [2022-11-23 03:41:43,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:41:43,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:41:43,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:41:43,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:41:43,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:41:43,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:43" (1/1) ... [2022-11-23 03:41:43,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@117c166d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:43, skipping insertion in model container [2022-11-23 03:41:43,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:43" (1/1) ... [2022-11-23 03:41:43,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:41:43,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:41:43,895 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_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2022-11-23 03:41:43,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:41:43,919 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:41:43,964 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_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2022-11-23 03:41:43,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:41:44,004 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:41:44,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44 WrapperNode [2022-11-23 03:41:44,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:41:44,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:41:44,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:41:44,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:41:44,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 03:41:44,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 03:41:44,107 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 319 [2022-11-23 03:41:44,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:41:44,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:41:44,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:41:44,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:41:44,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 03:41:44,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 03:41:44,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 03:41:44,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 03:41:44,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 03:41:44,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 03:41:44,192 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 03:41:44,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 03:41:44,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:41:44,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:41:44,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:41:44,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:41:44,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (1/1) ... [2022-11-23 03:41:44,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:41:44,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:41:44,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:41:44,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:41:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:41:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-23 03:41:44,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-23 03:41:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:41:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:41:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:41:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:41:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:41:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:41:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:41:44,318 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:41:44,520 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:41:44,522 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:41:45,217 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:41:45,667 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:41:45,667 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 03:41:45,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:45 BoogieIcfgContainer [2022-11-23 03:41:45,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:41:45,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:41:45,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:41:45,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:41:45,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:41:43" (1/3) ... [2022-11-23 03:41:45,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c22a898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:41:45, skipping insertion in model container [2022-11-23 03:41:45,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:44" (2/3) ... [2022-11-23 03:41:45,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c22a898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:41:45, skipping insertion in model container [2022-11-23 03:41:45,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:45" (3/3) ... [2022-11-23 03:41:45,683 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-2.i [2022-11-23 03:41:45,691 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:41:45,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:41:45,703 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-23 03:41:45,703 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:41:45,832 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 03:41:45,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 191 transitions, 387 flow [2022-11-23 03:41:45,958 INFO L130 PetriNetUnfolder]: 11/202 cut-off events. [2022-11-23 03:41:45,958 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:41:45,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 202 events. 11/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 256 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 164. Up to 4 conditions per place. [2022-11-23 03:41:45,967 INFO L82 GeneralOperation]: Start removeDead. Operand has 184 places, 191 transitions, 387 flow [2022-11-23 03:41:45,973 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 184 places, 191 transitions, 387 flow [2022-11-23 03:41:45,977 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:41:45,991 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 191 transitions, 387 flow [2022-11-23 03:41:45,994 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 191 transitions, 387 flow [2022-11-23 03:41:45,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 191 transitions, 387 flow [2022-11-23 03:41:46,078 INFO L130 PetriNetUnfolder]: 11/202 cut-off events. [2022-11-23 03:41:46,078 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:41:46,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 202 events. 11/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 256 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 164. Up to 4 conditions per place. [2022-11-23 03:41:46,085 INFO L119 LiptonReduction]: Number of co-enabled transitions 4228 [2022-11-23 03:42:31,882 INFO L134 LiptonReduction]: Checked pairs total: 5383 [2022-11-23 03:42:31,882 INFO L136 LiptonReduction]: Total number of compositions: 243 [2022-11-23 03:42:31,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:42:31,904 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;@4cec6a3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:42:31,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-11-23 03:42:31,907 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-11-23 03:42:31,908 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:42:31,908 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:31,909 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 03:42:31,909 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-23 03:42:31,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:31,914 INFO L85 PathProgramCache]: Analyzing trace with hash 40865211, now seen corresponding path program 1 times [2022-11-23 03:42:31,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:31,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527623891] [2022-11-23 03:42:31,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:31,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:32,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:32,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:32,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527623891] [2022-11-23 03:42:32,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527623891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:32,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:32,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:42:32,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791155386] [2022-11-23 03:42:32,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:32,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:42:32,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:32,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:42:32,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:42:32,132 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 434 [2022-11-23 03:42:32,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 101 flow. Second operand has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:32,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:32,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 434 [2022-11-23 03:42:32,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:32,343 INFO L130 PetriNetUnfolder]: 32/68 cut-off events. [2022-11-23 03:42:32,343 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:42:32,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 68 events. 32/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 135 event pairs, 20 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 128. Up to 68 conditions per place. [2022-11-23 03:42:32,346 INFO L137 encePairwiseOnDemand]: 405/434 looper letters, 18 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2022-11-23 03:42:32,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 19 transitions, 79 flow [2022-11-23 03:42:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:42:32,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 03:42:32,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 371 transitions. [2022-11-23 03:42:32,359 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4274193548387097 [2022-11-23 03:42:32,360 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 371 transitions. [2022-11-23 03:42:32,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 371 transitions. [2022-11-23 03:42:32,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:32,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 371 transitions. [2022-11-23 03:42:32,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 185.5) internal successors, (371), 2 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:32,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:32,374 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:32,376 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 101 flow. Second operand 2 states and 371 transitions. [2022-11-23 03:42:32,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 19 transitions, 79 flow [2022-11-23 03:42:32,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 19 transitions, 79 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:42:32,380 INFO L231 Difference]: Finished difference. Result has 19 places, 19 transitions, 43 flow [2022-11-23 03:42:32,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=434, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=43, PETRI_PLACES=19, PETRI_TRANSITIONS=19} [2022-11-23 03:42:32,385 INFO L288 CegarLoopForPetriNet]: 45 programPoint places, -26 predicate places. [2022-11-23 03:42:32,386 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 19 transitions, 43 flow [2022-11-23 03:42:32,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:32,386 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:32,386 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-11-23 03:42:32,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:42:32,387 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-23 03:42:32,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:32,388 INFO L85 PathProgramCache]: Analyzing trace with hash 616815626, now seen corresponding path program 1 times [2022-11-23 03:42:32,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:32,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052411561] [2022-11-23 03:42:32,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:32,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:42:32,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:42:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:42:32,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:42:32,449 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:42:32,451 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2022-11-23 03:42:32,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2022-11-23 03:42:32,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2022-11-23 03:42:32,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2022-11-23 03:42:32,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2022-11-23 03:42:32,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2022-11-23 03:42:32,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2022-11-23 03:42:32,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2022-11-23 03:42:32,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2022-11-23 03:42:32,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2022-11-23 03:42:32,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2022-11-23 03:42:32,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2022-11-23 03:42:32,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2022-11-23 03:42:32,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2022-11-23 03:42:32,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2022-11-23 03:42:32,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2022-11-23 03:42:32,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2022-11-23 03:42:32,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2022-11-23 03:42:32,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2022-11-23 03:42:32,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2022-11-23 03:42:32,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2022-11-23 03:42:32,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2022-11-23 03:42:32,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2022-11-23 03:42:32,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2022-11-23 03:42:32,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2022-11-23 03:42:32,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2022-11-23 03:42:32,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2022-11-23 03:42:32,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2022-11-23 03:42:32,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2022-11-23 03:42:32,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2022-11-23 03:42:32,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2022-11-23 03:42:32,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2022-11-23 03:42:32,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2022-11-23 03:42:32,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2022-11-23 03:42:32,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2022-11-23 03:42:32,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2022-11-23 03:42:32,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2022-11-23 03:42:32,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2022-11-23 03:42:32,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2022-11-23 03:42:32,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2022-11-23 03:42:32,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2022-11-23 03:42:32,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2022-11-23 03:42:32,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2022-11-23 03:42:32,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2022-11-23 03:42:32,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2022-11-23 03:42:32,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2022-11-23 03:42:32,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2022-11-23 03:42:32,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2022-11-23 03:42:32,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2022-11-23 03:42:32,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2022-11-23 03:42:32,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2022-11-23 03:42:32,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2022-11-23 03:42:32,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2022-11-23 03:42:32,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:42:32,466 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 03:42:32,468 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 03:42:32,469 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 03:42:32,549 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 03:42:32,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 329 places, 343 transitions, 698 flow [2022-11-23 03:42:32,675 INFO L130 PetriNetUnfolder]: 21/367 cut-off events. [2022-11-23 03:42:32,675 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 03:42:32,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 367 events. 21/367 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1001 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 315. Up to 6 conditions per place. [2022-11-23 03:42:32,684 INFO L82 GeneralOperation]: Start removeDead. Operand has 329 places, 343 transitions, 698 flow [2022-11-23 03:42:32,691 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 343 transitions, 698 flow [2022-11-23 03:42:32,691 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:42:32,692 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 329 places, 343 transitions, 698 flow [2022-11-23 03:42:32,693 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 329 places, 343 transitions, 698 flow [2022-11-23 03:42:32,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 329 places, 343 transitions, 698 flow [2022-11-23 03:42:32,784 INFO L130 PetriNetUnfolder]: 21/367 cut-off events. [2022-11-23 03:42:32,784 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 03:42:32,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 367 events. 21/367 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1001 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 315. Up to 6 conditions per place. [2022-11-23 03:42:32,813 INFO L119 LiptonReduction]: Number of co-enabled transitions 54360 [2022-11-23 03:47:54,396 INFO L134 LiptonReduction]: Checked pairs total: 403093 [2022-11-23 03:47:54,396 INFO L136 LiptonReduction]: Total number of compositions: 361 [2022-11-23 03:47:54,399 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:47:54,400 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;@4cec6a3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:47:54,400 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2022-11-23 03:47:54,402 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-11-23 03:47:54,427 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:47:54,427 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:47:54,427 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 03:47:54,427 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-23 03:47:54,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:47:54,428 INFO L85 PathProgramCache]: Analyzing trace with hash 65791240, now seen corresponding path program 1 times [2022-11-23 03:47:54,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:47:54,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724602677] [2022-11-23 03:47:54,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:47:54,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:47:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:54,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:47:54,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:47:54,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724602677] [2022-11-23 03:47:54,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724602677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:47:54,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:47:54,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:47:54,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098546711] [2022-11-23 03:47:54,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:47:54,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:47:54,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:47:54,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:47:54,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:47:54,512 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 704 [2022-11-23 03:47:54,513 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 177 transitions, 366 flow. Second operand has 2 states, 2 states have (on average 289.0) internal successors, (578), 2 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:47:54,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:47:54,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 704 [2022-11-23 03:47:54,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:47:56,397 INFO L130 PetriNetUnfolder]: 2577/6257 cut-off events. [2022-11-23 03:47:56,397 INFO L131 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2022-11-23 03:47:56,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10346 conditions, 6257 events. 2577/6257 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 52833 event pairs, 2051 based on Foata normal form. 0/5615 useless extension candidates. Maximal degree in co-relation 7278. Up to 3998 conditions per place. [2022-11-23 03:47:56,438 INFO L137 encePairwiseOnDemand]: 669/704 looper letters, 64 selfloop transitions, 0 changer transitions 0/142 dead transitions. [2022-11-23 03:47:56,438 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 142 transitions, 424 flow [2022-11-23 03:47:56,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:47:56,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 03:47:56,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 673 transitions. [2022-11-23 03:47:56,443 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47798295454545453 [2022-11-23 03:47:56,443 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 673 transitions. [2022-11-23 03:47:56,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 673 transitions. [2022-11-23 03:47:56,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:47:56,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 673 transitions. [2022-11-23 03:47:56,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 336.5) internal successors, (673), 2 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:47:56,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 704.0) internal successors, (2112), 3 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:47:56,454 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 704.0) internal successors, (2112), 3 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:47:56,457 INFO L175 Difference]: Start difference. First operand has 168 places, 177 transitions, 366 flow. Second operand 2 states and 673 transitions. [2022-11-23 03:47:56,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 142 transitions, 424 flow [2022-11-23 03:47:56,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 142 transitions, 422 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-23 03:47:56,463 INFO L231 Difference]: Finished difference. Result has 138 places, 142 transitions, 294 flow [2022-11-23 03:47:56,464 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=704, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=294, PETRI_PLACES=138, PETRI_TRANSITIONS=142} [2022-11-23 03:47:56,464 INFO L288 CegarLoopForPetriNet]: 168 programPoint places, -30 predicate places. [2022-11-23 03:47:56,465 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 142 transitions, 294 flow [2022-11-23 03:47:56,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 289.0) internal successors, (578), 2 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:47:56,466 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:47:56,471 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:47:56,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:47:56,472 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-23 03:47:56,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:47:56,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1199072853, now seen corresponding path program 1 times [2022-11-23 03:47:56,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:47:56,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252696377] [2022-11-23 03:47:56,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:47:56,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:47:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:47:56,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:47:56,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:47:56,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252696377] [2022-11-23 03:47:56,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252696377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:47:56,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:47:56,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:47:56,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844329466] [2022-11-23 03:47:56,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:47:56,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:47:56,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:47:56,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:47:56,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:47:56,688 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 704 [2022-11-23 03:47:56,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 142 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:47:56,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:47:56,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 704 [2022-11-23 03:47:56,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:48:00,118 INFO L130 PetriNetUnfolder]: 5966/14044 cut-off events. [2022-11-23 03:48:00,119 INFO L131 PetriNetUnfolder]: For 142/142 co-relation queries the response was YES. [2022-11-23 03:48:00,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23489 conditions, 14044 events. 5966/14044 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 431. Compared 133386 event pairs, 2257 based on Foata normal form. 0/12350 useless extension candidates. Maximal degree in co-relation 23484. Up to 4905 conditions per place. [2022-11-23 03:48:00,211 INFO L137 encePairwiseOnDemand]: 694/704 looper letters, 130 selfloop transitions, 8 changer transitions 0/209 dead transitions. [2022-11-23 03:48:00,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 209 transitions, 709 flow [2022-11-23 03:48:00,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:48:00,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:48:00,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 977 transitions. [2022-11-23 03:48:00,216 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46259469696969696 [2022-11-23 03:48:00,216 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 977 transitions. [2022-11-23 03:48:00,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 977 transitions. [2022-11-23 03:48:00,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:48:00,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 977 transitions. [2022-11-23 03:48:00,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:48:00,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 704.0) internal successors, (2816), 4 states have internal predecessors, (2816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:48:00,226 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 704.0) internal successors, (2816), 4 states have internal predecessors, (2816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:48:00,227 INFO L175 Difference]: Start difference. First operand has 138 places, 142 transitions, 294 flow. Second operand 3 states and 977 transitions. [2022-11-23 03:48:00,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 209 transitions, 709 flow [2022-11-23 03:48:00,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 209 transitions, 709 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:48:00,232 INFO L231 Difference]: Finished difference. Result has 142 places, 150 transitions, 362 flow [2022-11-23 03:48:00,233 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=704, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=142, PETRI_TRANSITIONS=150} [2022-11-23 03:48:00,233 INFO L288 CegarLoopForPetriNet]: 168 programPoint places, -26 predicate places. [2022-11-23 03:48:00,233 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 150 transitions, 362 flow [2022-11-23 03:48:00,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:48:00,234 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:48:00,235 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 03:48:00,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:48:00,235 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-23 03:48:00,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:48:00,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2053636224, now seen corresponding path program 1 times [2022-11-23 03:48:00,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:48:00,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397947031] [2022-11-23 03:48:00,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:48:00,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:48:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:48:00,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:48:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:48:00,271 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:48:00,272 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:48:00,272 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (78 of 79 remaining) [2022-11-23 03:48:00,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining) [2022-11-23 03:48:00,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining) [2022-11-23 03:48:00,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining) [2022-11-23 03:48:00,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining) [2022-11-23 03:48:00,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining) [2022-11-23 03:48:00,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining) [2022-11-23 03:48:00,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining) [2022-11-23 03:48:00,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining) [2022-11-23 03:48:00,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining) [2022-11-23 03:48:00,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining) [2022-11-23 03:48:00,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining) [2022-11-23 03:48:00,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining) [2022-11-23 03:48:00,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining) [2022-11-23 03:48:00,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining) [2022-11-23 03:48:00,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining) [2022-11-23 03:48:00,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining) [2022-11-23 03:48:00,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining) [2022-11-23 03:48:00,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining) [2022-11-23 03:48:00,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining) [2022-11-23 03:48:00,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining) [2022-11-23 03:48:00,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining) [2022-11-23 03:48:00,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining) [2022-11-23 03:48:00,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining) [2022-11-23 03:48:00,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining) [2022-11-23 03:48:00,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining) [2022-11-23 03:48:00,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining) [2022-11-23 03:48:00,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining) [2022-11-23 03:48:00,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining) [2022-11-23 03:48:00,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining) [2022-11-23 03:48:00,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining) [2022-11-23 03:48:00,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining) [2022-11-23 03:48:00,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining) [2022-11-23 03:48:00,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining) [2022-11-23 03:48:00,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining) [2022-11-23 03:48:00,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining) [2022-11-23 03:48:00,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining) [2022-11-23 03:48:00,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining) [2022-11-23 03:48:00,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining) [2022-11-23 03:48:00,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining) [2022-11-23 03:48:00,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining) [2022-11-23 03:48:00,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining) [2022-11-23 03:48:00,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining) [2022-11-23 03:48:00,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining) [2022-11-23 03:48:00,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining) [2022-11-23 03:48:00,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining) [2022-11-23 03:48:00,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining) [2022-11-23 03:48:00,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 79 remaining) [2022-11-23 03:48:00,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 79 remaining) [2022-11-23 03:48:00,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 79 remaining) [2022-11-23 03:48:00,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining) [2022-11-23 03:48:00,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining) [2022-11-23 03:48:00,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining) [2022-11-23 03:48:00,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining) [2022-11-23 03:48:00,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining) [2022-11-23 03:48:00,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining) [2022-11-23 03:48:00,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining) [2022-11-23 03:48:00,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining) [2022-11-23 03:48:00,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining) [2022-11-23 03:48:00,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining) [2022-11-23 03:48:00,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining) [2022-11-23 03:48:00,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining) [2022-11-23 03:48:00,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining) [2022-11-23 03:48:00,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining) [2022-11-23 03:48:00,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining) [2022-11-23 03:48:00,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining) [2022-11-23 03:48:00,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining) [2022-11-23 03:48:00,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining) [2022-11-23 03:48:00,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining) [2022-11-23 03:48:00,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining) [2022-11-23 03:48:00,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining) [2022-11-23 03:48:00,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining) [2022-11-23 03:48:00,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining) [2022-11-23 03:48:00,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining) [2022-11-23 03:48:00,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining) [2022-11-23 03:48:00,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining) [2022-11-23 03:48:00,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining) [2022-11-23 03:48:00,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining) [2022-11-23 03:48:00,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining) [2022-11-23 03:48:00,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:48:00,297 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-23 03:48:00,297 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 03:48:00,298 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-23 03:48:00,396 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 03:48:00,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 474 places, 495 transitions, 1011 flow [2022-11-23 03:48:00,557 INFO L130 PetriNetUnfolder]: 31/532 cut-off events. [2022-11-23 03:48:00,557 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-23 03:48:00,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 532 events. 31/532 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1955 event pairs, 0 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 466. Up to 8 conditions per place. [2022-11-23 03:48:00,572 INFO L82 GeneralOperation]: Start removeDead. Operand has 474 places, 495 transitions, 1011 flow [2022-11-23 03:48:00,582 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 474 places, 495 transitions, 1011 flow [2022-11-23 03:48:00,582 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:48:00,583 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 474 places, 495 transitions, 1011 flow [2022-11-23 03:48:00,583 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 474 places, 495 transitions, 1011 flow [2022-11-23 03:48:00,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 474 places, 495 transitions, 1011 flow [2022-11-23 03:48:00,758 INFO L130 PetriNetUnfolder]: 31/532 cut-off events. [2022-11-23 03:48:00,758 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-23 03:48:00,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 532 events. 31/532 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1955 event pairs, 0 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 466. Up to 8 conditions per place. [2022-11-23 03:48:00,829 INFO L119 LiptonReduction]: Number of co-enabled transitions 150396 [2022-11-23 03:48:15,669 WARN L233 SmtUtils]: Spent 7.09s on a formula simplification. DAG size of input: 106 DAG size of output: 93 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:48:24,948 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 109 DAG size of output: 97 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:48:49,744 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 106 DAG size of output: 93 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:48:59,903 WARN L233 SmtUtils]: Spent 7.18s on a formula simplification. DAG size of input: 109 DAG size of output: 97 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:52:00,452 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-23 03:52:00,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-11-23 03:52:00,453 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.checkImplication(TransFormulaUtils.java:1164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.performInclusionCheck(SemanticIndependenceRelation.java:186) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:141) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.isIndependent(SemanticIndependenceRelation.java:119) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.isIndependent(SemanticIndependenceRelation.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.UnionIndependenceRelation.isIndependent(UnionIndependenceRelation.java:73) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.CachedIndependenceRelation.isIndependent(CachedIndependenceRelation.java:113) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.lambda$0(LiptonReduction.java:454) at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) at java.base/java.util.HashMap$KeySpliterator.tryAdvance(HashMap.java:1642) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.allMatch(ReferencePipeline.java:533) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.isLeftMover(LiptonReduction.java:454) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRuleCheck(LiptonReduction.java:409) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRule(LiptonReduction.java:312) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:129) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:133) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:95) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createPetriAbstraction(CegarLoopFactory.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructCegarLoop(CegarLoopFactory.java:187) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 49 more [2022-11-23 03:52:00,456 INFO L158 Benchmark]: Toolchain (without parser) took 617064.99ms. Allocated memory was 157.3MB in the beginning and 1.0GB in the end (delta: 872.4MB). Free memory was 126.8MB in the beginning and 247.6MB in the end (delta: -120.8MB). Peak memory consumption was 797.8MB. Max. memory is 16.1GB. [2022-11-23 03:52:00,456 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 119.5MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:52:00,457 INFO L158 Benchmark]: CACSL2BoogieTranslator took 613.19ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 105.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 03:52:00,457 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.06ms. Allocated memory is still 157.3MB. Free memory was 105.2MB in the beginning and 101.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:52:00,458 INFO L158 Benchmark]: Boogie Preprocessor took 89.63ms. Allocated memory is still 157.3MB. Free memory was 101.7MB in the beginning and 98.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:52:00,458 INFO L158 Benchmark]: RCFGBuilder took 1472.51ms. Allocated memory is still 157.3MB. Free memory was 98.2MB in the beginning and 98.8MB in the end (delta: -558.9kB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2022-11-23 03:52:00,459 INFO L158 Benchmark]: TraceAbstraction took 614781.67ms. Allocated memory was 157.3MB in the beginning and 1.0GB in the end (delta: 872.4MB). Free memory was 98.0MB in the beginning and 247.6MB in the end (delta: -149.6MB). Peak memory consumption was 765.6MB. Max. memory is 16.1GB. [2022-11-23 03:52:00,462 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 119.5MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 613.19ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 105.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.06ms. Allocated memory is still 157.3MB. Free memory was 105.2MB in the beginning and 101.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.63ms. Allocated memory is still 157.3MB. Free memory was 101.7MB in the beginning and 98.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1472.51ms. Allocated memory is still 157.3MB. Free memory was 98.2MB in the beginning and 98.8MB in the end (delta: -558.9kB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. * TraceAbstraction took 614781.67ms. Allocated memory was 157.3MB in the beginning and 1.0GB in the end (delta: 872.4MB). Free memory was 98.0MB in the beginning and 247.6MB in the end (delta: -149.6MB). Peak memory consumption was 765.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.9s, 184 PlacesBefore, 45 PlacesAfterwards, 191 TransitionsBefore, 48 TransitionsAfterwards, 4228 CoEnabledTransitionPairs, 10 FixpointIterations, 24 TrivialSequentialCompositions, 197 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 4 ChoiceCompositions, 243 TotalNumberOfCompositions, 5383 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4097, independent: 3925, independent conditional: 0, independent unconditional: 3925, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 30, unknown conditional: 0, unknown unconditional: 30] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2785, independent: 2738, independent conditional: 0, independent unconditional: 2738, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2785, independent: 2705, independent conditional: 0, independent unconditional: 2705, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 80, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14810, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 407, dependent conditional: 0, dependent unconditional: 407, unknown: 14360, unknown conditional: 0, unknown unconditional: 14360] ], Cache Queries: [ total: 4097, independent: 1187, independent conditional: 0, independent unconditional: 1187, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 2809, unknown conditional: 0, unknown unconditional: 2809] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 321.7s, 329 PlacesBefore, 168 PlacesAfterwards, 343 TransitionsBefore, 177 TransitionsAfterwards, 54360 CoEnabledTransitionPairs, 14 FixpointIterations, 24 TrivialSequentialCompositions, 296 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 36 ConcurrentYvCompositions, 5 ChoiceCompositions, 361 TotalNumberOfCompositions, 403093 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 116972, independent: 113314, independent conditional: 0, independent unconditional: 113314, dependent: 2955, dependent conditional: 0, dependent unconditional: 2955, unknown: 703, unknown conditional: 0, unknown unconditional: 703] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 42205, independent: 41725, independent conditional: 0, independent unconditional: 41725, dependent: 377, dependent conditional: 0, dependent unconditional: 377, unknown: 103, unknown conditional: 0, unknown unconditional: 103] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 42205, independent: 36943, independent conditional: 0, independent unconditional: 36943, dependent: 5262, dependent conditional: 0, dependent unconditional: 5262, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5262, independent: 4782, independent conditional: 0, independent unconditional: 4782, dependent: 377, dependent conditional: 0, dependent unconditional: 377, unknown: 103, unknown conditional: 0, unknown unconditional: 103] , SemanticIndependenceRelation.Query Time [ms]: [ total: 293991, independent: 19057, independent conditional: 0, independent unconditional: 19057, dependent: 5379, dependent conditional: 0, dependent unconditional: 5379, unknown: 269556, unknown conditional: 0, unknown unconditional: 269556] ], Cache Queries: [ total: 116972, independent: 71589, independent conditional: 0, independent unconditional: 71589, dependent: 2578, dependent conditional: 0, dependent unconditional: 2578, unknown: 42805, unknown conditional: 0, unknown unconditional: 42805] , Statistics on independence cache: Total cache size (in pairs): 6342, Positive cache size: 6112, Positive conditional cache size: 0, Positive unconditional cache size: 6112, Negative cache size: 230, Negative conditional cache size: 0, Negative unconditional cache size: 230, Unknown cache size: 64, Unknown conditional cache size: 0, Unknown unconditional cache size: 64 - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS --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 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc --- 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-4e7fbc6 [2022-11-23 03:52:02,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:52:02,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:52:02,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:52:02,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:52:02,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:52:02,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:52:02,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:52:02,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:52:02,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:52:02,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:52:02,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:52:02,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:52:02,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:52:02,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:52:02,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:52:02,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:52:02,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:52:02,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:52:02,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:52:02,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:52:02,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:52:02,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:52:02,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:52:02,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:52:02,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:52:02,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:52:02,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:52:02,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:52:02,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:52:02,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:52:02,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:52:02,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:52:02,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:52:02,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:52:02,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:52:02,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:52:02,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:52:02,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:52:02,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:52:02,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:52:02,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2022-11-23 03:52:02,948 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:52:02,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:52:02,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:52:02,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:52:02,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:52:02,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:52:02,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:52:02,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:52:02,951 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:52:02,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:52:02,951 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:52:02,952 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:52:02,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:52:02,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:52:02,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:52:02,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:52:02,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:52:02,953 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 03:52:02,953 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 03:52:02,953 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 03:52:02,954 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:52:02,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:52:02,954 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:52:02,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:52:02,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:52:02,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:52:02,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:52:02,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:52:02,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:52:02,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:52:02,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:52:02,956 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 03:52:02,956 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 03:52:02,956 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:52:02,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:52:02,957 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:52:02,957 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:52:02,957 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 03:52:02,957 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_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc [2022-11-23 03:52:03,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:52:03,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:52:03,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:52:03,386 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:52:03,387 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:52:03,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i [2022-11-23 03:52:06,537 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:52:06,886 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:52:06,889 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i [2022-11-23 03:52:06,902 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/data/aabf5b2da/aab65eac6f4e4d53a9645db355088865/FLAG3001a196a [2022-11-23 03:52:06,928 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/data/aabf5b2da/aab65eac6f4e4d53a9645db355088865 [2022-11-23 03:52:06,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:52:06,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:52:06,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:52:06,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:52:06,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:52:06,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:52:06" (1/1) ... [2022-11-23 03:52:06,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10dc371e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:06, skipping insertion in model container [2022-11-23 03:52:06,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:52:06" (1/1) ... [2022-11-23 03:52:06,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:52:06,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:52:07,496 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_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2022-11-23 03:52:07,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:52:07,533 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:52:07,635 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_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2022-11-23 03:52:07,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:52:07,702 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:52:07,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:07 WrapperNode [2022-11-23 03:52:07,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:52:07,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:52:07,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:52:07,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:52:07,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:07" (1/1) ... [2022-11-23 03:52:07,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:07" (1/1) ... [2022-11-23 03:52:07,785 INFO L138 Inliner]: procedures = 181, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 316 [2022-11-23 03:52:07,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:52:07,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:52:07,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:52:07,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:52:07,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:07" (1/1) ... [2022-11-23 03:52:07,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:07" (1/1) ... [2022-11-23 03:52:07,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:07" (1/1) ... [2022-11-23 03:52:07,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:07" (1/1) ... [2022-11-23 03:52:07,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:07" (1/1) ... [2022-11-23 03:52:07,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:07" (1/1) ... [2022-11-23 03:52:07,873 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:07" (1/1) ... [2022-11-23 03:52:07,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:07" (1/1) ... [2022-11-23 03:52:07,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:52:07,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:52:07,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:52:07,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:52:07,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:07" (1/1) ... [2022-11-23 03:52:07,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:52:07,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:52:07,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:52:07,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:52:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 03:52:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-23 03:52:07,993 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-23 03:52:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:52:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:52:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:52:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 03:52:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 03:52:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-23 03:52:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:52:07,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:52:07,996 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:52:08,212 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:52:08,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:52:09,001 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:52:09,480 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:52:09,480 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 03:52:09,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:09 BoogieIcfgContainer [2022-11-23 03:52:09,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:52:09,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:52:09,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:52:09,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:52:09,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:52:06" (1/3) ... [2022-11-23 03:52:09,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f61385a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:52:09, skipping insertion in model container [2022-11-23 03:52:09,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:07" (2/3) ... [2022-11-23 03:52:09,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f61385a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:52:09, skipping insertion in model container [2022-11-23 03:52:09,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:09" (3/3) ... [2022-11-23 03:52:09,498 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-2.i [2022-11-23 03:52:09,509 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:52:09,521 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:52:09,522 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-23 03:52:09,522 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:52:09,700 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 03:52:09,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 189 transitions, 383 flow [2022-11-23 03:52:09,909 INFO L130 PetriNetUnfolder]: 11/200 cut-off events. [2022-11-23 03:52:09,911 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:52:09,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 200 events. 11/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 258 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 161. Up to 4 conditions per place. [2022-11-23 03:52:09,920 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 189 transitions, 383 flow [2022-11-23 03:52:09,930 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 189 transitions, 383 flow [2022-11-23 03:52:09,935 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:52:09,952 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 182 places, 189 transitions, 383 flow [2022-11-23 03:52:09,955 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 182 places, 189 transitions, 383 flow [2022-11-23 03:52:09,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 189 transitions, 383 flow [2022-11-23 03:52:10,000 INFO L130 PetriNetUnfolder]: 11/200 cut-off events. [2022-11-23 03:52:10,000 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:52:10,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 200 events. 11/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 258 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 161. Up to 4 conditions per place. [2022-11-23 03:52:10,005 INFO L119 LiptonReduction]: Number of co-enabled transitions 4144 [2022-11-23 03:52:34,365 WARN L233 SmtUtils]: Spent 8.56s on a formula simplification. DAG size of input: 63 DAG size of output: 55 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:53:11,657 INFO L134 LiptonReduction]: Checked pairs total: 4811 [2022-11-23 03:53:11,658 INFO L136 LiptonReduction]: Total number of compositions: 226 [2022-11-23 03:53:11,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:53:11,714 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;@7801e71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:53:11,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-11-23 03:53:11,723 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-11-23 03:53:11,726 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:53:11,727 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:53:11,728 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 03:53:11,729 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-23 03:53:11,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:53:11,741 INFO L85 PathProgramCache]: Analyzing trace with hash 40145135, now seen corresponding path program 1 times [2022-11-23 03:53:11,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:53:11,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493175809] [2022-11-23 03:53:11,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:53:11,757 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:53:11,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:53:11,763 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:53:11,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 03:53:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:53:11,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 03:53:11,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:53:11,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:53:11,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:53:11,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:53:11,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493175809] [2022-11-23 03:53:11,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493175809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:53:11,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:53:11,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:53:11,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945542996] [2022-11-23 03:53:11,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:53:11,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:53:11,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:53:11,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:53:11,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:53:11,972 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 415 [2022-11-23 03:53:11,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 51 transitions, 107 flow. Second operand has 2 states, 2 states have (on average 162.0) internal successors, (324), 2 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:53:11,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:53:11,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 415 [2022-11-23 03:53:11,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:53:12,172 INFO L130 PetriNetUnfolder]: 39/81 cut-off events. [2022-11-23 03:53:12,173 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:53:12,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 81 events. 39/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 164 event pairs, 24 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 154. Up to 81 conditions per place. [2022-11-23 03:53:12,175 INFO L137 encePairwiseOnDemand]: 386/415 looper letters, 21 selfloop transitions, 0 changer transitions 0/22 dead transitions. [2022-11-23 03:53:12,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 22 transitions, 91 flow [2022-11-23 03:53:12,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:53:12,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 03:53:12,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 370 transitions. [2022-11-23 03:53:12,192 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4457831325301205 [2022-11-23 03:53:12,193 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 370 transitions. [2022-11-23 03:53:12,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 370 transitions. [2022-11-23 03:53:12,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:53:12,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 370 transitions. [2022-11-23 03:53:12,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 185.0) internal successors, (370), 2 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:53:12,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 415.0) internal successors, (1245), 3 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:53:12,210 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 415.0) internal successors, (1245), 3 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:53:12,212 INFO L175 Difference]: Start difference. First operand has 47 places, 51 transitions, 107 flow. Second operand 2 states and 370 transitions. [2022-11-23 03:53:12,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 22 transitions, 91 flow [2022-11-23 03:53:12,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 22 transitions, 91 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:53:12,218 INFO L231 Difference]: Finished difference. Result has 21 places, 22 transitions, 49 flow [2022-11-23 03:53:12,220 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=415, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=49, PETRI_PLACES=21, PETRI_TRANSITIONS=22} [2022-11-23 03:53:12,224 INFO L288 CegarLoopForPetriNet]: 47 programPoint places, -26 predicate places. [2022-11-23 03:53:12,225 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 22 transitions, 49 flow [2022-11-23 03:53:12,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 162.0) internal successors, (324), 2 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:53:12,226 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:53:12,226 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-11-23 03:53:12,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:53:12,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:53:12,441 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-23 03:53:12,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:53:12,442 INFO L85 PathProgramCache]: Analyzing trace with hash -75177574, now seen corresponding path program 1 times [2022-11-23 03:53:12,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:53:12,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724680569] [2022-11-23 03:53:12,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:53:12,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:53:12,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:53:12,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:53:12,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 03:53:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:53:12,554 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:53:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:53:12,634 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-23 03:53:12,634 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:53:12,637 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2022-11-23 03:53:12,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2022-11-23 03:53:12,640 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2022-11-23 03:53:12,640 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2022-11-23 03:53:12,640 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2022-11-23 03:53:12,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2022-11-23 03:53:12,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2022-11-23 03:53:12,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2022-11-23 03:53:12,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2022-11-23 03:53:12,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2022-11-23 03:53:12,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2022-11-23 03:53:12,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2022-11-23 03:53:12,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2022-11-23 03:53:12,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2022-11-23 03:53:12,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2022-11-23 03:53:12,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2022-11-23 03:53:12,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2022-11-23 03:53:12,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2022-11-23 03:53:12,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2022-11-23 03:53:12,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2022-11-23 03:53:12,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2022-11-23 03:53:12,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2022-11-23 03:53:12,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2022-11-23 03:53:12,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2022-11-23 03:53:12,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2022-11-23 03:53:12,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2022-11-23 03:53:12,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2022-11-23 03:53:12,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2022-11-23 03:53:12,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2022-11-23 03:53:12,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2022-11-23 03:53:12,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2022-11-23 03:53:12,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2022-11-23 03:53:12,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2022-11-23 03:53:12,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2022-11-23 03:53:12,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2022-11-23 03:53:12,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2022-11-23 03:53:12,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2022-11-23 03:53:12,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2022-11-23 03:53:12,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2022-11-23 03:53:12,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2022-11-23 03:53:12,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2022-11-23 03:53:12,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2022-11-23 03:53:12,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2022-11-23 03:53:12,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2022-11-23 03:53:12,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2022-11-23 03:53:12,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2022-11-23 03:53:12,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2022-11-23 03:53:12,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2022-11-23 03:53:12,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2022-11-23 03:53:12,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2022-11-23 03:53:12,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2022-11-23 03:53:12,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2022-11-23 03:53:12,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2022-11-23 03:53:12,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:53:12,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:53:12,881 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 03:53:12,884 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 03:53:12,884 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 03:53:13,073 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 03:53:13,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 324 places, 338 transitions, 688 flow [2022-11-23 03:53:13,242 INFO L130 PetriNetUnfolder]: 21/362 cut-off events. [2022-11-23 03:53:13,242 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 03:53:13,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 362 events. 21/362 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 986 event pairs, 0 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 309. Up to 6 conditions per place. [2022-11-23 03:53:13,251 INFO L82 GeneralOperation]: Start removeDead. Operand has 324 places, 338 transitions, 688 flow [2022-11-23 03:53:13,259 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 338 transitions, 688 flow [2022-11-23 03:53:13,259 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:53:13,260 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 324 places, 338 transitions, 688 flow [2022-11-23 03:53:13,260 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 324 places, 338 transitions, 688 flow [2022-11-23 03:53:13,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 324 places, 338 transitions, 688 flow [2022-11-23 03:53:13,354 INFO L130 PetriNetUnfolder]: 21/362 cut-off events. [2022-11-23 03:53:13,355 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 03:53:13,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 362 events. 21/362 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 986 event pairs, 0 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 309. Up to 6 conditions per place. [2022-11-23 03:53:13,386 INFO L119 LiptonReduction]: Number of co-enabled transitions 52392 [2022-11-23 03:53:36,734 WARN L233 SmtUtils]: Spent 8.28s on a formula simplification. DAG size of input: 66 DAG size of output: 61 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:55:15,222 INFO L134 LiptonReduction]: Checked pairs total: 429689 [2022-11-23 03:55:15,222 INFO L136 LiptonReduction]: Total number of compositions: 365 [2022-11-23 03:55:15,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:55:15,226 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;@7801e71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:55:15,227 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2022-11-23 03:55:15,230 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-11-23 03:55:15,230 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:55:15,230 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:55:15,230 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 03:55:15,231 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-23 03:55:15,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:55:15,232 INFO L85 PathProgramCache]: Analyzing trace with hash 64505288, now seen corresponding path program 1 times [2022-11-23 03:55:15,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:55:15,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94621579] [2022-11-23 03:55:15,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:55:15,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:55:15,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:55:15,241 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:55:15,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 03:55:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:55:15,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 03:55:15,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:55:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:55:15,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:55:15,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:55:15,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94621579] [2022-11-23 03:55:15,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94621579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:55:15,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:55:15,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:55:15,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279144825] [2022-11-23 03:55:15,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:55:15,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:55:15,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:55:15,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:55:15,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:55:15,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 703 [2022-11-23 03:55:15,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 179 transitions, 370 flow. Second operand has 2 states, 2 states have (on average 284.0) internal successors, (568), 2 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:55:15,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:55:15,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 703 [2022-11-23 03:55:15,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:55:16,831 INFO L130 PetriNetUnfolder]: 2403/5991 cut-off events. [2022-11-23 03:55:16,831 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2022-11-23 03:55:16,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9799 conditions, 5991 events. 2403/5991 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 50597 event pairs, 1897 based on Foata normal form. 0/5319 useless extension candidates. Maximal degree in co-relation 6784. Up to 3720 conditions per place. [2022-11-23 03:55:16,878 INFO L137 encePairwiseOnDemand]: 668/703 looper letters, 62 selfloop transitions, 0 changer transitions 0/144 dead transitions. [2022-11-23 03:55:16,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 144 transitions, 424 flow [2022-11-23 03:55:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:55:16,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 03:55:16,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 661 transitions. [2022-11-23 03:55:16,886 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4701280227596017 [2022-11-23 03:55:16,886 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 661 transitions. [2022-11-23 03:55:16,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 661 transitions. [2022-11-23 03:55:16,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:55:16,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 661 transitions. [2022-11-23 03:55:16,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 330.5) internal successors, (661), 2 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:55:16,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 703.0) internal successors, (2109), 3 states have internal predecessors, (2109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:55:16,898 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 703.0) internal successors, (2109), 3 states have internal predecessors, (2109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:55:16,898 INFO L175 Difference]: Start difference. First operand has 170 places, 179 transitions, 370 flow. Second operand 2 states and 661 transitions. [2022-11-23 03:55:16,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 144 transitions, 424 flow [2022-11-23 03:55:16,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 144 transitions, 422 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-23 03:55:16,904 INFO L231 Difference]: Finished difference. Result has 140 places, 144 transitions, 298 flow [2022-11-23 03:55:16,905 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=298, PETRI_PLACES=140, PETRI_TRANSITIONS=144} [2022-11-23 03:55:16,906 INFO L288 CegarLoopForPetriNet]: 170 programPoint places, -30 predicate places. [2022-11-23 03:55:16,906 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 144 transitions, 298 flow [2022-11-23 03:55:16,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 284.0) internal successors, (568), 2 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:55:16,907 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:55:16,907 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:55:16,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:17,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:55:17,120 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-23 03:55:17,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:55:17,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1860092618, now seen corresponding path program 1 times [2022-11-23 03:55:17,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:55:17,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034463971] [2022-11-23 03:55:17,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:55:17,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:55:17,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:55:17,131 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:55:17,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-23 03:55:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:55:17,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:55:17,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:55:17,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:55:17,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:55:17,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:55:17,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034463971] [2022-11-23 03:55:17,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034463971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:55:17,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:55:17,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:55:17,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376264083] [2022-11-23 03:55:17,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:55:17,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:55:17,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:55:17,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:55:17,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:55:17,322 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 703 [2022-11-23 03:55:17,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 144 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:55:17,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:55:17,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 703 [2022-11-23 03:55:17,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:55:19,633 INFO L130 PetriNetUnfolder]: 5580/13554 cut-off events. [2022-11-23 03:55:19,633 INFO L131 PetriNetUnfolder]: For 136/136 co-relation queries the response was YES. [2022-11-23 03:55:19,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22373 conditions, 13554 events. 5580/13554 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 129703 event pairs, 2090 based on Foata normal form. 0/11774 useless extension candidates. Maximal degree in co-relation 22368. Up to 4590 conditions per place. [2022-11-23 03:55:19,733 INFO L137 encePairwiseOnDemand]: 693/703 looper letters, 126 selfloop transitions, 8 changer transitions 0/209 dead transitions. [2022-11-23 03:55:19,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 209 transitions, 701 flow [2022-11-23 03:55:19,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:55:19,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:55:19,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 958 transitions. [2022-11-23 03:55:19,736 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4542437174016121 [2022-11-23 03:55:19,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 958 transitions. [2022-11-23 03:55:19,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 958 transitions. [2022-11-23 03:55:19,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:55:19,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 958 transitions. [2022-11-23 03:55:19,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:55:19,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:55:19,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:55:19,747 INFO L175 Difference]: Start difference. First operand has 140 places, 144 transitions, 298 flow. Second operand 3 states and 958 transitions. [2022-11-23 03:55:19,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 209 transitions, 701 flow [2022-11-23 03:55:19,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 209 transitions, 701 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:55:19,752 INFO L231 Difference]: Finished difference. Result has 144 places, 152 transitions, 366 flow [2022-11-23 03:55:19,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=144, PETRI_TRANSITIONS=152} [2022-11-23 03:55:19,753 INFO L288 CegarLoopForPetriNet]: 170 programPoint places, -26 predicate places. [2022-11-23 03:55:19,754 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 152 transitions, 366 flow [2022-11-23 03:55:19,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:55:19,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:55:19,755 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 03:55:19,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:19,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:55:19,976 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-23 03:55:19,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:55:19,976 INFO L85 PathProgramCache]: Analyzing trace with hash 122203197, now seen corresponding path program 1 times [2022-11-23 03:55:19,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:55:19,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696383504] [2022-11-23 03:55:19,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:55:19,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:55:19,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:55:19,978 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:55:19,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 03:55:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:55:20,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:55:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:55:20,157 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-23 03:55:20,158 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:55:20,158 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (78 of 79 remaining) [2022-11-23 03:55:20,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining) [2022-11-23 03:55:20,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining) [2022-11-23 03:55:20,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining) [2022-11-23 03:55:20,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining) [2022-11-23 03:55:20,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining) [2022-11-23 03:55:20,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining) [2022-11-23 03:55:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining) [2022-11-23 03:55:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining) [2022-11-23 03:55:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining) [2022-11-23 03:55:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining) [2022-11-23 03:55:20,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining) [2022-11-23 03:55:20,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining) [2022-11-23 03:55:20,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining) [2022-11-23 03:55:20,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining) [2022-11-23 03:55:20,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining) [2022-11-23 03:55:20,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining) [2022-11-23 03:55:20,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining) [2022-11-23 03:55:20,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining) [2022-11-23 03:55:20,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining) [2022-11-23 03:55:20,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining) [2022-11-23 03:55:20,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining) [2022-11-23 03:55:20,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining) [2022-11-23 03:55:20,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining) [2022-11-23 03:55:20,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining) [2022-11-23 03:55:20,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining) [2022-11-23 03:55:20,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining) [2022-11-23 03:55:20,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining) [2022-11-23 03:55:20,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining) [2022-11-23 03:55:20,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining) [2022-11-23 03:55:20,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining) [2022-11-23 03:55:20,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining) [2022-11-23 03:55:20,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining) [2022-11-23 03:55:20,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining) [2022-11-23 03:55:20,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining) [2022-11-23 03:55:20,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining) [2022-11-23 03:55:20,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining) [2022-11-23 03:55:20,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining) [2022-11-23 03:55:20,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining) [2022-11-23 03:55:20,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining) [2022-11-23 03:55:20,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining) [2022-11-23 03:55:20,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining) [2022-11-23 03:55:20,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining) [2022-11-23 03:55:20,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining) [2022-11-23 03:55:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining) [2022-11-23 03:55:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining) [2022-11-23 03:55:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining) [2022-11-23 03:55:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 79 remaining) [2022-11-23 03:55:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 79 remaining) [2022-11-23 03:55:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 79 remaining) [2022-11-23 03:55:20,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining) [2022-11-23 03:55:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining) [2022-11-23 03:55:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining) [2022-11-23 03:55:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining) [2022-11-23 03:55:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining) [2022-11-23 03:55:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining) [2022-11-23 03:55:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining) [2022-11-23 03:55:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining) [2022-11-23 03:55:20,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining) [2022-11-23 03:55:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining) [2022-11-23 03:55:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining) [2022-11-23 03:55:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining) [2022-11-23 03:55:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining) [2022-11-23 03:55:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining) [2022-11-23 03:55:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining) [2022-11-23 03:55:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining) [2022-11-23 03:55:20,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining) [2022-11-23 03:55:20,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining) [2022-11-23 03:55:20,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining) [2022-11-23 03:55:20,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining) [2022-11-23 03:55:20,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining) [2022-11-23 03:55:20,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining) [2022-11-23 03:55:20,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining) [2022-11-23 03:55:20,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining) [2022-11-23 03:55:20,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining) [2022-11-23 03:55:20,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining) [2022-11-23 03:55:20,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining) [2022-11-23 03:55:20,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining) [2022-11-23 03:55:20,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining) [2022-11-23 03:55:20,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:55:20,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8cf0a1e-7bd7-4889-b24a-0dc6d5a94cf2/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:55:20,374 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-23 03:55:20,374 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 03:55:20,375 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-23 03:55:20,538 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 03:55:20,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 466 places, 487 transitions, 995 flow [2022-11-23 03:55:20,736 INFO L130 PetriNetUnfolder]: 31/524 cut-off events. [2022-11-23 03:55:20,736 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-23 03:55:20,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 524 events. 31/524 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1923 event pairs, 0 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 457. Up to 8 conditions per place. [2022-11-23 03:55:20,751 INFO L82 GeneralOperation]: Start removeDead. Operand has 466 places, 487 transitions, 995 flow [2022-11-23 03:55:20,762 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 466 places, 487 transitions, 995 flow [2022-11-23 03:55:20,762 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:55:20,763 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 466 places, 487 transitions, 995 flow [2022-11-23 03:55:20,763 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 466 places, 487 transitions, 995 flow [2022-11-23 03:55:20,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 466 places, 487 transitions, 995 flow [2022-11-23 03:55:20,959 INFO L130 PetriNetUnfolder]: 31/524 cut-off events. [2022-11-23 03:55:20,960 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-23 03:55:20,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 524 events. 31/524 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1923 event pairs, 0 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 457. Up to 8 conditions per place. [2022-11-23 03:55:21,030 INFO L119 LiptonReduction]: Number of co-enabled transitions 144744