./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN --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 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 --- 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-6b4ec56 [2022-11-20 11:04:44,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:04:44,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:04:44,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:04:44,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:04:44,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:04:44,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:04:44,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:04:44,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:04:44,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:04:44,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:04:44,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:04:44,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:04:44,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:04:44,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:04:44,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:04:44,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:04:44,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:04:44,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:04:44,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:04:44,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:04:45,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:04:45,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:04:45,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:04:45,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:04:45,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:04:45,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:04:45,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:04:45,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:04:45,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:04:45,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:04:45,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:04:45,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:04:45,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:04:45,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:04:45,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:04:45,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:04:45,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:04:45,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:04:45,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:04:45,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:04:45,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:04:45,078 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:04:45,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:04:45,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:04:45,080 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:04:45,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:04:45,081 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:04:45,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:04:45,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:04:45,083 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:04:45,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:04:45,085 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:04:45,085 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:04:45,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:04:45,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:04:45,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:04:45,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:04:45,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:04:45,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:04:45,088 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:04:45,088 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:04:45,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:04:45,089 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:04:45,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:04:45,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:04:45,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:04:45,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:04:45,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:04:45,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:04:45,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:04:45,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:04:45,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:04:45,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:04:45,093 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:04:45,094 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:04:45,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:04:45,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 [2022-11-20 11:04:45,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:04:45,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:04:45,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:04:45,501 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:04:45,501 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:04:45,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2022-11-20 11:04:48,772 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:04:49,121 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:04:49,122 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2022-11-20 11:04:49,138 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/data/aaa37ec26/79857a486f6c4573a93db275d9ae6904/FLAGcb4c0109d [2022-11-20 11:04:49,159 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/data/aaa37ec26/79857a486f6c4573a93db275d9ae6904 [2022-11-20 11:04:49,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:04:49,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:04:49,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:04:49,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:04:49,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:04:49,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:04:49" (1/1) ... [2022-11-20 11:04:49,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9d095a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49, skipping insertion in model container [2022-11-20 11:04:49,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:04:49" (1/1) ... [2022-11-20 11:04:49,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:04:49,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:04:49,435 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:04:49,617 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_c152e8b7-3a8b-4630-87f1-65346b5fab2f/sv-benchmarks/c/pthread-ext/18_read_write_lock.i[31161,31174] [2022-11-20 11:04:49,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:04:49,636 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:04:49,656 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:04:49,683 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_c152e8b7-3a8b-4630-87f1-65346b5fab2f/sv-benchmarks/c/pthread-ext/18_read_write_lock.i[31161,31174] [2022-11-20 11:04:49,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:04:49,735 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:04:49,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49 WrapperNode [2022-11-20 11:04:49,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:04:49,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:04:49,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:04:49,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:04:49,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49" (1/1) ... [2022-11-20 11:04:49,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49" (1/1) ... [2022-11-20 11:04:49,823 INFO L138 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2022-11-20 11:04:49,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:04:49,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:04:49,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:04:49,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:04:49,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49" (1/1) ... [2022-11-20 11:04:49,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49" (1/1) ... [2022-11-20 11:04:49,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49" (1/1) ... [2022-11-20 11:04:49,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49" (1/1) ... [2022-11-20 11:04:49,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49" (1/1) ... [2022-11-20 11:04:49,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49" (1/1) ... [2022-11-20 11:04:49,878 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49" (1/1) ... [2022-11-20 11:04:49,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49" (1/1) ... [2022-11-20 11:04:49,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:04:49,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:04:49,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:04:49,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:04:49,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49" (1/1) ... [2022-11-20 11:04:49,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:04:49,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:04:49,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:04:49,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:04:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-20 11:04:49,989 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-20 11:04:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:04:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:04:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:04:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:04:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:04:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:04:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:04:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:04:49,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:04:49,994 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:04:50,149 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:04:50,152 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:04:50,433 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:04:50,566 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:04:50,567 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:04:50,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:04:50 BoogieIcfgContainer [2022-11-20 11:04:50,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:04:50,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:04:50,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:04:50,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:04:50,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:04:49" (1/3) ... [2022-11-20 11:04:50,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521b81d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:04:50, skipping insertion in model container [2022-11-20 11:04:50,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:49" (2/3) ... [2022-11-20 11:04:50,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521b81d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:04:50, skipping insertion in model container [2022-11-20 11:04:50,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:04:50" (3/3) ... [2022-11-20 11:04:50,582 INFO L112 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2022-11-20 11:04:50,593 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:04:50,606 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:04:50,607 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-20 11:04:50,607 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:04:50,682 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:04:50,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 153 flow [2022-11-20 11:04:50,818 INFO L130 PetriNetUnfolder]: 1/73 cut-off events. [2022-11-20 11:04:50,818 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:04:50,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 1/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 67 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-11-20 11:04:50,825 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 74 transitions, 153 flow [2022-11-20 11:04:50,830 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 73 transitions, 149 flow [2022-11-20 11:04:50,843 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:04:50,851 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;@30a0d8fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:04:50,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-20 11:04:50,861 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-20 11:04:50,862 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:04:50,862 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:04:50,863 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:04:50,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-11-20 11:04:50,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:04:50,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1769976179, now seen corresponding path program 1 times [2022-11-20 11:04:50,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:04:50,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424477562] [2022-11-20 11:04:50,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:04:50,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:04:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:04:51,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:04:51,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:04:51,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424477562] [2022-11-20 11:04:51,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424477562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:04:51,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:04:51,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 11:04:51,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548393640] [2022-11-20 11:04:51,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:04:51,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:04:51,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:04:51,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:04:51,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:04:51,166 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 74 [2022-11-20 11:04:51,169 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 73 transitions, 149 flow. Second operand has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:51,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:04:51,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 74 [2022-11-20 11:04:51,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:04:51,278 INFO L130 PetriNetUnfolder]: 14/118 cut-off events. [2022-11-20 11:04:51,279 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:04:51,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 118 events. 14/118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 288 event pairs, 14 based on Foata normal form. 3/111 useless extension candidates. Maximal degree in co-relation 134. Up to 39 conditions per place. [2022-11-20 11:04:51,282 INFO L137 encePairwiseOnDemand]: 60/74 looper letters, 9 selfloop transitions, 0 changer transitions 3/58 dead transitions. [2022-11-20 11:04:51,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 58 transitions, 139 flow [2022-11-20 11:04:51,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:04:51,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 11:04:51,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 122 transitions. [2022-11-20 11:04:51,298 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8243243243243243 [2022-11-20 11:04:51,299 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 122 transitions. [2022-11-20 11:04:51,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 122 transitions. [2022-11-20 11:04:51,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:04:51,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 122 transitions. [2022-11-20 11:04:51,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 61.0) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:51,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:51,312 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:51,315 INFO L175 Difference]: Start difference. First operand has 76 places, 73 transitions, 149 flow. Second operand 2 states and 122 transitions. [2022-11-20 11:04:51,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 58 transitions, 139 flow [2022-11-20 11:04:51,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:04:51,322 INFO L231 Difference]: Finished difference. Result has 62 places, 55 transitions, 112 flow [2022-11-20 11:04:51,325 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=112, PETRI_PLACES=62, PETRI_TRANSITIONS=55} [2022-11-20 11:04:51,329 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -14 predicate places. [2022-11-20 11:04:51,330 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 112 flow [2022-11-20 11:04:51,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:51,330 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:04:51,331 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:04:51,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:04:51,331 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-11-20 11:04:51,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:04:51,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1465084408, now seen corresponding path program 1 times [2022-11-20 11:04:51,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:04:51,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177372678] [2022-11-20 11:04:51,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:04:51,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:04:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:04:51,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:04:51,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:04:51,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177372678] [2022-11-20 11:04:51,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177372678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:04:51,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:04:51,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:04:51,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424236845] [2022-11-20 11:04:51,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:04:51,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:04:51,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:04:51,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:04:51,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:04:51,447 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 74 [2022-11-20 11:04:51,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:51,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:04:51,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 74 [2022-11-20 11:04:51,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:04:51,571 INFO L130 PetriNetUnfolder]: 50/228 cut-off events. [2022-11-20 11:04:51,572 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:04:51,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 228 events. 50/228 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 842 event pairs, 25 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 346. Up to 85 conditions per place. [2022-11-20 11:04:51,574 INFO L137 encePairwiseOnDemand]: 68/74 looper letters, 14 selfloop transitions, 3 changer transitions 6/64 dead transitions. [2022-11-20 11:04:51,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 64 transitions, 176 flow [2022-11-20 11:04:51,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:04:51,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:04:51,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2022-11-20 11:04:51,586 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7027027027027027 [2022-11-20 11:04:51,586 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 156 transitions. [2022-11-20 11:04:51,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 156 transitions. [2022-11-20 11:04:51,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:04:51,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 156 transitions. [2022-11-20 11:04:51,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:51,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:51,590 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:51,590 INFO L175 Difference]: Start difference. First operand has 62 places, 55 transitions, 112 flow. Second operand 3 states and 156 transitions. [2022-11-20 11:04:51,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 64 transitions, 176 flow [2022-11-20 11:04:51,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 176 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:04:51,593 INFO L231 Difference]: Finished difference. Result has 62 places, 55 transitions, 127 flow [2022-11-20 11:04:51,594 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=62, PETRI_TRANSITIONS=55} [2022-11-20 11:04:51,599 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -14 predicate places. [2022-11-20 11:04:51,599 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 127 flow [2022-11-20 11:04:51,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:51,599 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:04:51,600 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:04:51,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:04:51,602 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-11-20 11:04:51,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:04:51,602 INFO L85 PathProgramCache]: Analyzing trace with hash -344643714, now seen corresponding path program 1 times [2022-11-20 11:04:51,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:04:51,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426646791] [2022-11-20 11:04:51,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:04:51,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:04:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:04:51,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:04:51,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:04:51,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426646791] [2022-11-20 11:04:51,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426646791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:04:51,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:04:51,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:04:51,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127597348] [2022-11-20 11:04:51,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:04:51,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:04:51,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:04:51,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:04:51,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:04:51,984 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 74 [2022-11-20 11:04:51,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:51,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:04:51,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 74 [2022-11-20 11:04:51,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:04:52,040 INFO L130 PetriNetUnfolder]: 2/99 cut-off events. [2022-11-20 11:04:52,041 INFO L131 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2022-11-20 11:04:52,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 99 events. 2/99 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 193 event pairs, 0 based on Foata normal form. 6/100 useless extension candidates. Maximal degree in co-relation 143. Up to 19 conditions per place. [2022-11-20 11:04:52,042 INFO L137 encePairwiseOnDemand]: 70/74 looper letters, 9 selfloop transitions, 3 changer transitions 1/56 dead transitions. [2022-11-20 11:04:52,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 56 transitions, 155 flow [2022-11-20 11:04:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:04:52,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 11:04:52,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 204 transitions. [2022-11-20 11:04:52,045 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6891891891891891 [2022-11-20 11:04:52,045 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 204 transitions. [2022-11-20 11:04:52,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 204 transitions. [2022-11-20 11:04:52,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:04:52,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 204 transitions. [2022-11-20 11:04:52,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:52,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 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) [2022-11-20 11:04:52,051 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 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) [2022-11-20 11:04:52,051 INFO L175 Difference]: Start difference. First operand has 62 places, 55 transitions, 127 flow. Second operand 4 states and 204 transitions. [2022-11-20 11:04:52,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 56 transitions, 155 flow [2022-11-20 11:04:52,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 56 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:04:52,054 INFO L231 Difference]: Finished difference. Result has 64 places, 55 transitions, 138 flow [2022-11-20 11:04:52,054 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2022-11-20 11:04:52,055 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -12 predicate places. [2022-11-20 11:04:52,056 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 138 flow [2022-11-20 11:04:52,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:52,056 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:04:52,056 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:04:52,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:04:52,057 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-11-20 11:04:52,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:04:52,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1091457494, now seen corresponding path program 2 times [2022-11-20 11:04:52,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:04:52,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153920881] [2022-11-20 11:04:52,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:04:52,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:04:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:04:52,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:04:52,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:04:52,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153920881] [2022-11-20 11:04:52,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153920881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:04:52,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:04:52,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:04:52,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659310292] [2022-11-20 11:04:52,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:04:52,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:04:52,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:04:52,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:04:52,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:04:52,195 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 74 [2022-11-20 11:04:52,196 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:52,196 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:04:52,196 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 74 [2022-11-20 11:04:52,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:04:52,231 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-11-20 11:04:52,232 INFO L131 PetriNetUnfolder]: For 10/12 co-relation queries the response was YES. [2022-11-20 11:04:52,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 52 events. 0/52 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2022-11-20 11:04:52,233 INFO L137 encePairwiseOnDemand]: 72/74 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2022-11-20 11:04:52,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 146 flow [2022-11-20 11:04:52,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:04:52,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:04:52,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2022-11-20 11:04:52,236 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6981981981981982 [2022-11-20 11:04:52,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 155 transitions. [2022-11-20 11:04:52,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 155 transitions. [2022-11-20 11:04:52,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:04:52,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 155 transitions. [2022-11-20 11:04:52,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:52,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:52,241 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:52,241 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 138 flow. Second operand 3 states and 155 transitions. [2022-11-20 11:04:52,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 146 flow [2022-11-20 11:04:52,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 52 transitions, 135 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-20 11:04:52,244 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2022-11-20 11:04:52,244 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2022-11-20 11:04:52,245 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -15 predicate places. [2022-11-20 11:04:52,246 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2022-11-20 11:04:52,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:04:52,249 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 20 remaining) [2022-11-20 11:04:52,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2022-11-20 11:04:52,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2022-11-20 11:04:52,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2022-11-20 11:04:52,252 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2022-11-20 11:04:52,252 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2022-11-20 11:04:52,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2022-11-20 11:04:52,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2022-11-20 11:04:52,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2022-11-20 11:04:52,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2022-11-20 11:04:52,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2022-11-20 11:04:52,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2022-11-20 11:04:52,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2022-11-20 11:04:52,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2022-11-20 11:04:52,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 20 remaining) [2022-11-20 11:04:52,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2022-11-20 11:04:52,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2022-11-20 11:04:52,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2022-11-20 11:04:52,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2022-11-20 11:04:52,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2022-11-20 11:04:52,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:04:52,259 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-11-20 11:04:52,267 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:04:52,267 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:04:52,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:04:52 BasicIcfg [2022-11-20 11:04:52,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:04:52,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:04:52,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:04:52,276 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:04:52,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:04:50" (3/4) ... [2022-11-20 11:04:52,280 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:04:52,287 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2022-11-20 11:04:52,295 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2022-11-20 11:04:52,296 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-20 11:04:52,296 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:04:52,296 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:04:52,388 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:04:52,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:04:52,389 INFO L158 Benchmark]: Toolchain (without parser) took 3224.78ms. Allocated memory is still 186.6MB. Free memory was 138.9MB in the beginning and 151.8MB in the end (delta: -12.9MB). Peak memory consumption was 81.0MB. Max. memory is 16.1GB. [2022-11-20 11:04:52,389 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 136.3MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:04:52,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.40ms. Allocated memory is still 186.6MB. Free memory was 138.2MB in the beginning and 118.6MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:04:52,391 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.05ms. Allocated memory is still 186.6MB. Free memory was 118.6MB in the beginning and 116.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:04:52,391 INFO L158 Benchmark]: Boogie Preprocessor took 66.89ms. Allocated memory is still 186.6MB. Free memory was 116.6MB in the beginning and 115.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:04:52,392 INFO L158 Benchmark]: RCFGBuilder took 678.48ms. Allocated memory is still 186.6MB. Free memory was 115.1MB in the beginning and 92.7MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-20 11:04:52,392 INFO L158 Benchmark]: TraceAbstraction took 1702.25ms. Allocated memory is still 186.6MB. Free memory was 92.1MB in the beginning and 64.4MB in the end (delta: 27.6MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2022-11-20 11:04:52,401 INFO L158 Benchmark]: Witness Printer took 112.44ms. Allocated memory is still 186.6MB. Free memory was 64.4MB in the beginning and 151.8MB in the end (delta: -87.4MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2022-11-20 11:04:52,404 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 136.3MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.40ms. Allocated memory is still 186.6MB. Free memory was 138.2MB in the beginning and 118.6MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.05ms. Allocated memory is still 186.6MB. Free memory was 118.6MB in the beginning and 116.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.89ms. Allocated memory is still 186.6MB. Free memory was 116.6MB in the beginning and 115.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 678.48ms. Allocated memory is still 186.6MB. Free memory was 115.1MB in the beginning and 92.7MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1702.25ms. Allocated memory is still 186.6MB. Free memory was 92.1MB in the beginning and 64.4MB in the end (delta: 27.6MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * Witness Printer took 112.44ms. Allocated memory is still 186.6MB. Free memory was 64.4MB in the beginning and 151.8MB in the end (delta: -87.4MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 6 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 11:04:52,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c152e8b7-3a8b-4630-87f1-65346b5fab2f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE