./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/peterson.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc --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 ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 --- 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-5e519f3 [2022-11-02 20:32:20,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:32:20,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:32:20,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:32:20,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:32:20,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:32:20,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:32:20,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:32:20,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:32:20,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:32:20,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:32:20,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:32:20,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:32:20,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:32:20,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:32:20,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:32:20,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:32:20,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:32:20,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:32:20,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:32:20,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:32:20,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:32:20,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:32:20,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:32:21,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:32:21,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:32:21,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:32:21,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:32:21,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:32:21,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:32:21,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:32:21,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:32:21,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:32:21,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:32:21,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:32:21,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:32:21,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:32:21,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:32:21,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:32:21,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:32:21,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:32:21,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:32:21,065 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:32:21,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:32:21,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:32:21,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:32:21,068 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:32:21,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:32:21,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:32:21,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:32:21,070 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:32:21,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:32:21,071 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:32:21,072 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:32:21,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:32:21,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:32:21,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:32:21,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:32:21,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:32:21,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:32:21,073 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:32:21,074 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:32:21,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:32:21,074 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:32:21,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:32:21,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:32:21,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:32:21,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:32:21,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:32:21,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:32:21,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:32:21,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:32:21,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:32:21,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:32:21,077 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:32:21,077 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:32:21,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:32:21,078 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_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 [2022-11-02 20:32:21,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:32:21,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:32:21,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:32:21,443 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:32:21,444 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:32:21,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-atomic/peterson.i [2022-11-02 20:32:21,513 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/data/4181562ba/c40cd0531435451487e7a970c5e11247/FLAG8a0136583 [2022-11-02 20:32:22,032 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:32:22,032 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/sv-benchmarks/c/pthread-atomic/peterson.i [2022-11-02 20:32:22,060 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/data/4181562ba/c40cd0531435451487e7a970c5e11247/FLAG8a0136583 [2022-11-02 20:32:22,348 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/data/4181562ba/c40cd0531435451487e7a970c5e11247 [2022-11-02 20:32:22,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:32:22,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:32:22,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:32:22,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:32:22,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:32:22,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:32:22" (1/1) ... [2022-11-02 20:32:22,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77660702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:22, skipping insertion in model container [2022-11-02 20:32:22,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:32:22" (1/1) ... [2022-11-02 20:32:22,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:32:22,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:32:22,669 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:32:22,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/sv-benchmarks/c/pthread-atomic/peterson.i[30997,31010] [2022-11-02 20:32:22,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/sv-benchmarks/c/pthread-atomic/peterson.i[31682,31695] [2022-11-02 20:32:22,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:32:22,923 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:32:22,949 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:32:22,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/sv-benchmarks/c/pthread-atomic/peterson.i[30997,31010] [2022-11-02 20:32:22,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/sv-benchmarks/c/pthread-atomic/peterson.i[31682,31695] [2022-11-02 20:32:23,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:32:23,049 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:32:23,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:23 WrapperNode [2022-11-02 20:32:23,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:32:23,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:32:23,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:32:23,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:32:23,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:23" (1/1) ... [2022-11-02 20:32:23,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:23" (1/1) ... [2022-11-02 20:32:23,133 INFO L138 Inliner]: procedures = 171, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-11-02 20:32:23,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:32:23,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:32:23,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:32:23,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:32:23,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:23" (1/1) ... [2022-11-02 20:32:23,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:23" (1/1) ... [2022-11-02 20:32:23,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:23" (1/1) ... [2022-11-02 20:32:23,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:23" (1/1) ... [2022-11-02 20:32:23,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:23" (1/1) ... [2022-11-02 20:32:23,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:23" (1/1) ... [2022-11-02 20:32:23,195 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:23" (1/1) ... [2022-11-02 20:32:23,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:23" (1/1) ... [2022-11-02 20:32:23,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:32:23,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:32:23,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:32:23,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:32:23,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:23" (1/1) ... [2022-11-02 20:32:23,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:32:23,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:32:23,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:32:23,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:32:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:32:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-02 20:32:23,305 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-02 20:32:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-02 20:32:23,306 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-02 20:32:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:32:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:32:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:32:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:32:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:32:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:32:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:32:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:32:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:32:23,310 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:32:23,503 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:32:23,506 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:32:23,810 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:32:23,875 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:32:23,875 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:32:23,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:32:23 BoogieIcfgContainer [2022-11-02 20:32:23,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:32:23,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:32:23,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:32:23,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:32:23,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:32:22" (1/3) ... [2022-11-02 20:32:23,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a22d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:32:23, skipping insertion in model container [2022-11-02 20:32:23,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:32:23" (2/3) ... [2022-11-02 20:32:23,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a22d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:32:23, skipping insertion in model container [2022-11-02 20:32:23,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:32:23" (3/3) ... [2022-11-02 20:32:23,895 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2022-11-02 20:32:23,904 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:32:23,914 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:32:23,915 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-02 20:32:23,915 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:32:24,017 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:32:24,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 122 transitions, 260 flow [2022-11-02 20:32:24,153 INFO L130 PetriNetUnfolder]: 6/120 cut-off events. [2022-11-02 20:32:24,154 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:32:24,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 120 events. 6/120 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 192 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2022-11-02 20:32:24,160 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 122 transitions, 260 flow [2022-11-02 20:32:24,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 110 transitions, 229 flow [2022-11-02 20:32:24,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:32:24,183 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;@3206db29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:32:24,183 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-11-02 20:32:24,190 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-02 20:32:24,190 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:32:24,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:32:24,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:32:24,192 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:32:24,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:32:24,198 INFO L85 PathProgramCache]: Analyzing trace with hash 204611570, now seen corresponding path program 1 times [2022-11-02 20:32:24,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:32:24,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626587037] [2022-11-02 20:32:24,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:32:24,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:32:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:32:24,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:32:24,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:32:24,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626587037] [2022-11-02 20:32:24,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626587037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:32:24,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:32:24,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:32:24,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687501865] [2022-11-02 20:32:24,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:32:24,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:32:24,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:32:24,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:32:24,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:32:24,537 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 122 [2022-11-02 20:32:24,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 110 transitions, 229 flow. Second operand has 2 states, 2 states have (on average 87.0) internal successors, (174), 2 states have internal predecessors, (174), 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) [2022-11-02 20:32:24,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:32:24,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 122 [2022-11-02 20:32:24,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:32:24,764 INFO L130 PetriNetUnfolder]: 64/345 cut-off events. [2022-11-02 20:32:24,764 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-02 20:32:24,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 345 events. 64/345 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1624 event pairs, 48 based on Foata normal form. 28/316 useless extension candidates. Maximal degree in co-relation 408. Up to 128 conditions per place. [2022-11-02 20:32:24,775 INFO L137 encePairwiseOnDemand]: 104/122 looper letters, 17 selfloop transitions, 0 changer transitions 0/92 dead transitions. [2022-11-02 20:32:24,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 92 transitions, 227 flow [2022-11-02 20:32:24,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:32:24,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-02 20:32:24,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 207 transitions. [2022-11-02 20:32:24,795 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8483606557377049 [2022-11-02 20:32:24,796 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 207 transitions. [2022-11-02 20:32:24,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 207 transitions. [2022-11-02 20:32:24,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:32:24,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 207 transitions. [2022-11-02 20:32:24,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 103.5) internal successors, (207), 2 states have internal predecessors, (207), 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) [2022-11-02 20:32:24,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2022-11-02 20:32:24,817 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2022-11-02 20:32:24,819 INFO L175 Difference]: Start difference. First operand has 111 places, 110 transitions, 229 flow. Second operand 2 states and 207 transitions. [2022-11-02 20:32:24,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 92 transitions, 227 flow [2022-11-02 20:32:24,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 92 transitions, 222 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-02 20:32:24,829 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 188 flow [2022-11-02 20:32:24,831 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=188, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2022-11-02 20:32:24,835 INFO L287 CegarLoopForPetriNet]: 111 programPoint places, -16 predicate places. [2022-11-02 20:32:24,836 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 188 flow [2022-11-02 20:32:24,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 87.0) internal successors, (174), 2 states have internal predecessors, (174), 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) [2022-11-02 20:32:24,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:32:24,837 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:32:24,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:32:24,838 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:32:24,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:32:24,840 INFO L85 PathProgramCache]: Analyzing trace with hash -361334533, now seen corresponding path program 1 times [2022-11-02 20:32:24,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:32:24,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737705711] [2022-11-02 20:32:24,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:32:24,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:32:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:32:24,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:32:24,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:32:24,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737705711] [2022-11-02 20:32:24,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737705711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:32:24,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:32:24,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:32:24,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598664100] [2022-11-02 20:32:24,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:32:24,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:32:24,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:32:25,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:32:25,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:32:25,001 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 122 [2022-11-02 20:32:25,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2022-11-02 20:32:25,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:32:25,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 122 [2022-11-02 20:32:25,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:32:25,265 INFO L130 PetriNetUnfolder]: 228/699 cut-off events. [2022-11-02 20:32:25,266 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-02 20:32:25,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 699 events. 228/699 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3808 event pairs, 160 based on Foata normal form. 0/588 useless extension candidates. Maximal degree in co-relation 1186. Up to 400 conditions per place. [2022-11-02 20:32:25,277 INFO L137 encePairwiseOnDemand]: 116/122 looper letters, 42 selfloop transitions, 5 changer transitions 0/108 dead transitions. [2022-11-02 20:32:25,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 108 transitions, 316 flow [2022-11-02 20:32:25,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:32:25,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:32:25,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2022-11-02 20:32:25,285 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7213114754098361 [2022-11-02 20:32:25,285 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2022-11-02 20:32:25,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2022-11-02 20:32:25,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:32:25,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2022-11-02 20:32:25,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2022-11-02 20:32:25,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2022-11-02 20:32:25,292 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2022-11-02 20:32:25,293 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 188 flow. Second operand 3 states and 264 transitions. [2022-11-02 20:32:25,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 108 transitions, 316 flow [2022-11-02 20:32:25,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 108 transitions, 316 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:32:25,298 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 226 flow [2022-11-02 20:32:25,299 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2022-11-02 20:32:25,300 INFO L287 CegarLoopForPetriNet]: 111 programPoint places, -12 predicate places. [2022-11-02 20:32:25,300 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 226 flow [2022-11-02 20:32:25,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2022-11-02 20:32:25,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:32:25,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:32:25,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:32:25,303 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:32:25,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:32:25,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1328584922, now seen corresponding path program 1 times [2022-11-02 20:32:25,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:32:25,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953286908] [2022-11-02 20:32:25,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:32:25,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:32:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:32:25,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:32:25,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:32:25,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953286908] [2022-11-02 20:32:25,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953286908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:32:25,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:32:25,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:32:25,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324214850] [2022-11-02 20:32:25,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:32:25,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:32:25,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:32:25,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:32:25,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:32:25,433 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 122 [2022-11-02 20:32:25,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2022-11-02 20:32:25,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:32:25,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 122 [2022-11-02 20:32:25,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:32:25,651 INFO L130 PetriNetUnfolder]: 186/681 cut-off events. [2022-11-02 20:32:25,651 INFO L131 PetriNetUnfolder]: For 117/119 co-relation queries the response was YES. [2022-11-02 20:32:25,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1219 conditions, 681 events. 186/681 cut-off events. For 117/119 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3761 event pairs, 80 based on Foata normal form. 1/600 useless extension candidates. Maximal degree in co-relation 1214. Up to 211 conditions per place. [2022-11-02 20:32:25,658 INFO L137 encePairwiseOnDemand]: 114/122 looper letters, 52 selfloop transitions, 7 changer transitions 0/123 dead transitions. [2022-11-02 20:32:25,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 123 transitions, 417 flow [2022-11-02 20:32:25,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:32:25,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:32:25,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2022-11-02 20:32:25,662 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7622950819672131 [2022-11-02 20:32:25,663 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2022-11-02 20:32:25,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2022-11-02 20:32:25,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:32:25,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2022-11-02 20:32:25,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:32:25,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2022-11-02 20:32:25,667 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2022-11-02 20:32:25,667 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 226 flow. Second operand 3 states and 279 transitions. [2022-11-02 20:32:25,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 123 transitions, 417 flow [2022-11-02 20:32:25,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 123 transitions, 403 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:32:25,676 INFO L231 Difference]: Finished difference. Result has 101 places, 102 transitions, 278 flow [2022-11-02 20:32:25,677 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=101, PETRI_TRANSITIONS=102} [2022-11-02 20:32:25,679 INFO L287 CegarLoopForPetriNet]: 111 programPoint places, -10 predicate places. [2022-11-02 20:32:25,679 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 102 transitions, 278 flow [2022-11-02 20:32:25,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2022-11-02 20:32:25,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:32:25,680 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:32:25,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:32:25,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:32:25,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:32:25,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1158795145, now seen corresponding path program 1 times [2022-11-02 20:32:25,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:32:25,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811821718] [2022-11-02 20:32:25,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:32:25,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:32:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:32:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:32:26,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:32:26,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811821718] [2022-11-02 20:32:26,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811821718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:32:26,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:32:26,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:32:26,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607557005] [2022-11-02 20:32:26,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:32:26,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:32:26,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:32:26,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:32:26,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:32:26,146 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 122 [2022-11-02 20:32:26,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 102 transitions, 278 flow. Second operand has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 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) [2022-11-02 20:32:26,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:32:26,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 122 [2022-11-02 20:32:26,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:32:26,594 INFO L130 PetriNetUnfolder]: 798/1736 cut-off events. [2022-11-02 20:32:26,595 INFO L131 PetriNetUnfolder]: For 146/152 co-relation queries the response was YES. [2022-11-02 20:32:26,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3290 conditions, 1736 events. 798/1736 cut-off events. For 146/152 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 11128 event pairs, 141 based on Foata normal form. 0/1580 useless extension candidates. Maximal degree in co-relation 3284. Up to 451 conditions per place. [2022-11-02 20:32:26,607 INFO L137 encePairwiseOnDemand]: 117/122 looper letters, 84 selfloop transitions, 4 changer transitions 0/157 dead transitions. [2022-11-02 20:32:26,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 157 transitions, 564 flow [2022-11-02 20:32:26,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:32:26,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:32:26,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2022-11-02 20:32:26,610 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6789617486338798 [2022-11-02 20:32:26,610 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 497 transitions. [2022-11-02 20:32:26,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 497 transitions. [2022-11-02 20:32:26,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:32:26,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 497 transitions. [2022-11-02 20:32:26,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 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) [2022-11-02 20:32:26,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 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) [2022-11-02 20:32:26,614 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 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) [2022-11-02 20:32:26,615 INFO L175 Difference]: Start difference. First operand has 101 places, 102 transitions, 278 flow. Second operand 6 states and 497 transitions. [2022-11-02 20:32:26,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 157 transitions, 564 flow [2022-11-02 20:32:26,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 157 transitions, 550 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:32:26,629 INFO L231 Difference]: Finished difference. Result has 103 places, 101 transitions, 270 flow [2022-11-02 20:32:26,629 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=270, PETRI_PLACES=103, PETRI_TRANSITIONS=101} [2022-11-02 20:32:26,631 INFO L287 CegarLoopForPetriNet]: 111 programPoint places, -8 predicate places. [2022-11-02 20:32:26,631 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 101 transitions, 270 flow [2022-11-02 20:32:26,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 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) [2022-11-02 20:32:26,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:32:26,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:32:26,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:32:26,633 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:32:26,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:32:26,633 INFO L85 PathProgramCache]: Analyzing trace with hash -394971784, now seen corresponding path program 1 times [2022-11-02 20:32:26,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:32:26,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496153523] [2022-11-02 20:32:26,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:32:26,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:32:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:32:26,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:32:26,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:32:26,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496153523] [2022-11-02 20:32:26,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496153523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:32:26,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:32:26,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:32:26,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504284257] [2022-11-02 20:32:26,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:32:26,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:32:26,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:32:26,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:32:26,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:32:26,703 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 122 [2022-11-02 20:32:26,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 101 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2022-11-02 20:32:26,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:32:26,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 122 [2022-11-02 20:32:26,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:32:26,879 INFO L130 PetriNetUnfolder]: 213/753 cut-off events. [2022-11-02 20:32:26,879 INFO L131 PetriNetUnfolder]: For 136/136 co-relation queries the response was YES. [2022-11-02 20:32:26,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1433 conditions, 753 events. 213/753 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4268 event pairs, 125 based on Foata normal form. 0/672 useless extension candidates. Maximal degree in co-relation 1427. Up to 374 conditions per place. [2022-11-02 20:32:26,885 INFO L137 encePairwiseOnDemand]: 116/122 looper letters, 51 selfloop transitions, 7 changer transitions 0/119 dead transitions. [2022-11-02 20:32:26,886 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 119 transitions, 441 flow [2022-11-02 20:32:26,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:32:26,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:32:26,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2022-11-02 20:32:26,887 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7213114754098361 [2022-11-02 20:32:26,887 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2022-11-02 20:32:26,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2022-11-02 20:32:26,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:32:26,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2022-11-02 20:32:26,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2022-11-02 20:32:26,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2022-11-02 20:32:26,890 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2022-11-02 20:32:26,891 INFO L175 Difference]: Start difference. First operand has 103 places, 101 transitions, 270 flow. Second operand 3 states and 264 transitions. [2022-11-02 20:32:26,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 119 transitions, 441 flow [2022-11-02 20:32:26,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 119 transitions, 434 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:32:26,896 INFO L231 Difference]: Finished difference. Result has 103 places, 105 transitions, 315 flow [2022-11-02 20:32:26,897 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=103, PETRI_TRANSITIONS=105} [2022-11-02 20:32:26,899 INFO L287 CegarLoopForPetriNet]: 111 programPoint places, -8 predicate places. [2022-11-02 20:32:26,900 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 105 transitions, 315 flow [2022-11-02 20:32:26,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2022-11-02 20:32:26,900 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:32:26,900 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:32:26,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:32:26,902 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:32:26,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:32:26,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1699793005, now seen corresponding path program 1 times [2022-11-02 20:32:26,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:32:26,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324925207] [2022-11-02 20:32:26,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:32:26,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:32:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:32:27,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:32:27,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:32:27,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324925207] [2022-11-02 20:32:27,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324925207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:32:27,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:32:27,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:32:27,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401131691] [2022-11-02 20:32:27,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:32:27,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:32:27,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:32:27,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:32:27,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:32:27,052 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 122 [2022-11-02 20:32:27,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 105 transitions, 315 flow. Second operand has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 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) [2022-11-02 20:32:27,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:32:27,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 122 [2022-11-02 20:32:27,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:32:27,329 INFO L130 PetriNetUnfolder]: 151/663 cut-off events. [2022-11-02 20:32:27,329 INFO L131 PetriNetUnfolder]: For 170/186 co-relation queries the response was YES. [2022-11-02 20:32:27,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1239 conditions, 663 events. 151/663 cut-off events. For 170/186 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3800 event pairs, 20 based on Foata normal form. 0/588 useless extension candidates. Maximal degree in co-relation 1232. Up to 106 conditions per place. [2022-11-02 20:32:27,335 INFO L137 encePairwiseOnDemand]: 112/122 looper letters, 50 selfloop transitions, 20 changer transitions 0/154 dead transitions. [2022-11-02 20:32:27,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 154 transitions, 556 flow [2022-11-02 20:32:27,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:32:27,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:32:27,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 894 transitions. [2022-11-02 20:32:27,339 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7327868852459016 [2022-11-02 20:32:27,339 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 894 transitions. [2022-11-02 20:32:27,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 894 transitions. [2022-11-02 20:32:27,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:32:27,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 894 transitions. [2022-11-02 20:32:27,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.4) internal successors, (894), 10 states have internal predecessors, (894), 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) [2022-11-02 20:32:27,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 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) [2022-11-02 20:32:27,347 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 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) [2022-11-02 20:32:27,347 INFO L175 Difference]: Start difference. First operand has 103 places, 105 transitions, 315 flow. Second operand 10 states and 894 transitions. [2022-11-02 20:32:27,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 154 transitions, 556 flow [2022-11-02 20:32:27,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 154 transitions, 542 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:32:27,354 INFO L231 Difference]: Finished difference. Result has 119 places, 124 transitions, 451 flow [2022-11-02 20:32:27,354 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=451, PETRI_PLACES=119, PETRI_TRANSITIONS=124} [2022-11-02 20:32:27,357 INFO L287 CegarLoopForPetriNet]: 111 programPoint places, 8 predicate places. [2022-11-02 20:32:27,357 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 124 transitions, 451 flow [2022-11-02 20:32:27,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 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) [2022-11-02 20:32:27,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:32:27,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:32:27,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:32:27,359 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:32:27,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:32:27,360 INFO L85 PathProgramCache]: Analyzing trace with hash 642321355, now seen corresponding path program 2 times [2022-11-02 20:32:27,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:32:27,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165990546] [2022-11-02 20:32:27,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:32:27,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:32:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:32:27,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:32:27,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:32:27,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165990546] [2022-11-02 20:32:27,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165990546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:32:27,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:32:27,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:32:27,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213947201] [2022-11-02 20:32:27,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:32:27,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:32:27,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:32:27,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:32:27,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:32:27,510 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 122 [2022-11-02 20:32:27,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 124 transitions, 451 flow. Second operand has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 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) [2022-11-02 20:32:27,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:32:27,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 122 [2022-11-02 20:32:27,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:32:27,793 INFO L130 PetriNetUnfolder]: 135/492 cut-off events. [2022-11-02 20:32:27,794 INFO L131 PetriNetUnfolder]: For 312/317 co-relation queries the response was YES. [2022-11-02 20:32:27,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1159 conditions, 492 events. 135/492 cut-off events. For 312/317 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2385 event pairs, 19 based on Foata normal form. 0/460 useless extension candidates. Maximal degree in co-relation 1144. Up to 105 conditions per place. [2022-11-02 20:32:27,799 INFO L137 encePairwiseOnDemand]: 112/122 looper letters, 65 selfloop transitions, 22 changer transitions 0/157 dead transitions. [2022-11-02 20:32:27,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 157 transitions, 740 flow [2022-11-02 20:32:27,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:32:27,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:32:27,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 892 transitions. [2022-11-02 20:32:27,802 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7311475409836066 [2022-11-02 20:32:27,802 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 892 transitions. [2022-11-02 20:32:27,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 892 transitions. [2022-11-02 20:32:27,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:32:27,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 892 transitions. [2022-11-02 20:32:27,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.2) internal successors, (892), 10 states have internal predecessors, (892), 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) [2022-11-02 20:32:27,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 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) [2022-11-02 20:32:27,810 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 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) [2022-11-02 20:32:27,811 INFO L175 Difference]: Start difference. First operand has 119 places, 124 transitions, 451 flow. Second operand 10 states and 892 transitions. [2022-11-02 20:32:27,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 157 transitions, 740 flow [2022-11-02 20:32:27,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 157 transitions, 698 flow, removed 15 selfloop flow, removed 4 redundant places. [2022-11-02 20:32:27,818 INFO L231 Difference]: Finished difference. Result has 129 places, 123 transitions, 497 flow [2022-11-02 20:32:27,819 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=497, PETRI_PLACES=129, PETRI_TRANSITIONS=123} [2022-11-02 20:32:27,819 INFO L287 CegarLoopForPetriNet]: 111 programPoint places, 18 predicate places. [2022-11-02 20:32:27,819 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 123 transitions, 497 flow [2022-11-02 20:32:27,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 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) [2022-11-02 20:32:27,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:32:27,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:32:27,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:32:27,821 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:32:27,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:32:27,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1865015613, now seen corresponding path program 1 times [2022-11-02 20:32:27,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:32:27,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861607140] [2022-11-02 20:32:27,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:32:27,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:32:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:32:28,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:32:28,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:32:28,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861607140] [2022-11-02 20:32:28,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861607140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:32:28,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:32:28,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:32:28,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670523727] [2022-11-02 20:32:28,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:32:28,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:32:28,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:32:28,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:32:28,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:32:28,320 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 122 [2022-11-02 20:32:28,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 123 transitions, 497 flow. Second operand has 6 states, 6 states have (on average 71.66666666666667) internal successors, (430), 6 states have internal predecessors, (430), 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) [2022-11-02 20:32:28,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:32:28,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 122 [2022-11-02 20:32:28,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:32:28,786 INFO L130 PetriNetUnfolder]: 1198/2254 cut-off events. [2022-11-02 20:32:28,786 INFO L131 PetriNetUnfolder]: For 3316/3697 co-relation queries the response was YES. [2022-11-02 20:32:28,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7013 conditions, 2254 events. 1198/2254 cut-off events. For 3316/3697 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 13350 event pairs, 724 based on Foata normal form. 23/2177 useless extension candidates. Maximal degree in co-relation 6991. Up to 1813 conditions per place. [2022-11-02 20:32:28,797 INFO L137 encePairwiseOnDemand]: 117/122 looper letters, 0 selfloop transitions, 0 changer transitions 158/158 dead transitions. [2022-11-02 20:32:28,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 158 transitions, 889 flow [2022-11-02 20:32:28,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:32:28,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:32:28,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2022-11-02 20:32:28,800 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.639344262295082 [2022-11-02 20:32:28,800 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 468 transitions. [2022-11-02 20:32:28,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 468 transitions. [2022-11-02 20:32:28,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:32:28,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 468 transitions. [2022-11-02 20:32:28,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 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) [2022-11-02 20:32:28,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 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) [2022-11-02 20:32:28,804 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 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) [2022-11-02 20:32:28,804 INFO L175 Difference]: Start difference. First operand has 129 places, 123 transitions, 497 flow. Second operand 6 states and 468 transitions. [2022-11-02 20:32:28,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 158 transitions, 889 flow [2022-11-02 20:32:28,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 158 transitions, 889 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:32:28,829 INFO L231 Difference]: Finished difference. Result has 133 places, 0 transitions, 0 flow [2022-11-02 20:32:28,830 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=133, PETRI_TRANSITIONS=0} [2022-11-02 20:32:28,830 INFO L287 CegarLoopForPetriNet]: 111 programPoint places, 22 predicate places. [2022-11-02 20:32:28,830 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 0 transitions, 0 flow [2022-11-02 20:32:28,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.66666666666667) internal successors, (430), 6 states have internal predecessors, (430), 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) [2022-11-02 20:32:28,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2022-11-02 20:32:28,834 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2022-11-02 20:32:28,834 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2022-11-02 20:32:28,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2022-11-02 20:32:28,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2022-11-02 20:32:28,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2022-11-02 20:32:28,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2022-11-02 20:32:28,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2022-11-02 20:32:28,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2022-11-02 20:32:28,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2022-11-02 20:32:28,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2022-11-02 20:32:28,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2022-11-02 20:32:28,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2022-11-02 20:32:28,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2022-11-02 20:32:28,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2022-11-02 20:32:28,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2022-11-02 20:32:28,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2022-11-02 20:32:28,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2022-11-02 20:32:28,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2022-11-02 20:32:28,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2022-11-02 20:32:28,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2022-11-02 20:32:28,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 40 remaining) [2022-11-02 20:32:28,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2022-11-02 20:32:28,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2022-11-02 20:32:28,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2022-11-02 20:32:28,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2022-11-02 20:32:28,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2022-11-02 20:32:28,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2022-11-02 20:32:28,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2022-11-02 20:32:28,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2022-11-02 20:32:28,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2022-11-02 20:32:28,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2022-11-02 20:32:28,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2022-11-02 20:32:28,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2022-11-02 20:32:28,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2022-11-02 20:32:28,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2022-11-02 20:32:28,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2022-11-02 20:32:28,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2022-11-02 20:32:28,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2022-11-02 20:32:28,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2022-11-02 20:32:28,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:32:28,843 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:32:28,849 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:32:28,850 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:32:28,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:32:28 BasicIcfg [2022-11-02 20:32:28,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:32:28,856 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:32:28,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:32:28,856 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:32:28,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:32:23" (3/4) ... [2022-11-02 20:32:28,860 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:32:28,865 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2022-11-02 20:32:28,866 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2022-11-02 20:32:28,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-02 20:32:28,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 20:32:28,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:32:28,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:32:28,898 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:32:28,899 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:32:28,899 INFO L158 Benchmark]: Toolchain (without parser) took 6547.22ms. Allocated memory was 88.1MB in the beginning and 136.3MB in the end (delta: 48.2MB). Free memory was 48.1MB in the beginning and 79.4MB in the end (delta: -31.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-11-02 20:32:28,900 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory was 66.3MB in the beginning and 66.3MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:32:28,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 696.43ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 47.8MB in the beginning and 76.5MB in the end (delta: -28.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:32:28,901 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.31ms. Allocated memory is still 111.1MB. Free memory was 76.5MB in the beginning and 74.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:32:28,901 INFO L158 Benchmark]: Boogie Preprocessor took 64.86ms. Allocated memory is still 111.1MB. Free memory was 74.4MB in the beginning and 72.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:32:28,901 INFO L158 Benchmark]: RCFGBuilder took 677.17ms. Allocated memory is still 111.1MB. Free memory was 72.6MB in the beginning and 51.7MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-02 20:32:28,902 INFO L158 Benchmark]: TraceAbstraction took 4975.75ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 51.3MB in the beginning and 81.4MB in the end (delta: -30.1MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2022-11-02 20:32:28,902 INFO L158 Benchmark]: Witness Printer took 42.88ms. Allocated memory is still 136.3MB. Free memory was 81.4MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:32:28,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory was 66.3MB in the beginning and 66.3MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 696.43ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 47.8MB in the beginning and 76.5MB in the end (delta: -28.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.31ms. Allocated memory is still 111.1MB. Free memory was 76.5MB in the beginning and 74.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.86ms. Allocated memory is still 111.1MB. Free memory was 74.4MB in the beginning and 72.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 677.17ms. Allocated memory is still 111.1MB. Free memory was 72.6MB in the beginning and 51.7MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4975.75ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 51.3MB in the beginning and 81.4MB in the end (delta: -30.1MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. * Witness Printer took 42.88ms. Allocated memory is still 136.3MB. Free memory was 81.4MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 739]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 705]: 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: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: 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: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: 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: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: 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 5 procedures, 179 locations, 40 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: 4.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 222 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 222 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 357 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 905 IncrementalHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 68 mSDtfsCounter, 905 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=497occurred in iteration=7, InterpolantAutomatonStates: 43, 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, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 320 NumberOfCodeBlocks, 320 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 542 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 20:32:28,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a2faff-17c7-4134-8c50-8cf484511595/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE