./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:20:24,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:20:24,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:20:24,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:20:24,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:20:24,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:20:24,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:20:24,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:20:24,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:20:24,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:20:24,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:20:24,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:20:24,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:20:24,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:20:24,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:20:24,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:20:24,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:20:24,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:20:24,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:20:24,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:20:24,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:20:24,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:20:24,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:20:24,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:20:24,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:20:24,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:20:24,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:20:24,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:20:24,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:20:24,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:20:24,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:20:24,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:20:24,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:20:25,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:20:25,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:20:25,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:20:25,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:20:25,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:20:25,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:20:25,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:20:25,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:20:25,009 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:20:25,048 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:20:25,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:20:25,049 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:20:25,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:20:25,050 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:20:25,050 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:20:25,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:20:25,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:20:25,051 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:20:25,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:20:25,052 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:20:25,052 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:20:25,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:20:25,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:20:25,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:20:25,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:20:25,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:20:25,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:20:25,054 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:20:25,054 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:20:25,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:20:25,054 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:20:25,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:20:25,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:20:25,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:20:25,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:20:25,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:20:25,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:20:25,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:20:25,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:20:25,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:20:25,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:20:25,057 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:20:25,057 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:20:25,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:20:25,057 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_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 [2022-11-20 12:20:25,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:20:25,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:20:25,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:20:25,394 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:20:25,394 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:20:25,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread/queue_ok.i [2022-11-20 12:20:28,567 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:20:28,941 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:20:28,942 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/sv-benchmarks/c/pthread/queue_ok.i [2022-11-20 12:20:28,957 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN/data/607ec7ab0/ce25980258a84a8287eeebf21920083d/FLAGb67841f2d [2022-11-20 12:20:28,973 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN/data/607ec7ab0/ce25980258a84a8287eeebf21920083d [2022-11-20 12:20:28,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:20:28,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:20:28,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:20:28,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:20:28,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:20:28,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:20:28" (1/1) ... [2022-11-20 12:20:28,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6927f963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:28, skipping insertion in model container [2022-11-20 12:20:28,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:20:28" (1/1) ... [2022-11-20 12:20:28,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:20:29,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:20:29,613 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/sv-benchmarks/c/pthread/queue_ok.i[43266,43279] [2022-11-20 12:20:29,617 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/sv-benchmarks/c/pthread/queue_ok.i[43543,43556] [2022-11-20 12:20:29,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:20:29,636 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:20:29,695 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/sv-benchmarks/c/pthread/queue_ok.i[43266,43279] [2022-11-20 12:20:29,698 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/sv-benchmarks/c/pthread/queue_ok.i[43543,43556] [2022-11-20 12:20:29,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:20:29,777 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:20:29,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:29 WrapperNode [2022-11-20 12:20:29,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:20:29,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:20:29,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:20:29,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:20:29,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:29" (1/1) ... [2022-11-20 12:20:29,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:29" (1/1) ... [2022-11-20 12:20:29,913 INFO L138 Inliner]: procedures = 274, calls = 57, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 387 [2022-11-20 12:20:29,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:20:29,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:20:29,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:20:29,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:20:29,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:29" (1/1) ... [2022-11-20 12:20:29,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:29" (1/1) ... [2022-11-20 12:20:29,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:29" (1/1) ... [2022-11-20 12:20:29,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:29" (1/1) ... [2022-11-20 12:20:30,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:29" (1/1) ... [2022-11-20 12:20:30,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:29" (1/1) ... [2022-11-20 12:20:30,022 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:29" (1/1) ... [2022-11-20 12:20:30,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:29" (1/1) ... [2022-11-20 12:20:30,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:20:30,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:20:30,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:20:30,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:20:30,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:29" (1/1) ... [2022-11-20 12:20:30,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:20:30,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:20:30,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:20:30,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f588c4-18c9-4b6c-9747-5bc7b9cfa02b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:20:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-20 12:20:30,133 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-20 12:20:30,134 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-20 12:20:30,134 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-20 12:20:30,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:20:30,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:20:30,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:20:30,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:20:30,135 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:20:30,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:20:30,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:20:30,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:20:30,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:20:30,138 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:20:30,342 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:20:30,344 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:20:31,298 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:20:31,310 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:20:31,323 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:20:31,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:20:31 BoogieIcfgContainer [2022-11-20 12:20:31,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:20:31,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:20:31,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:20:31,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:20:31,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:20:28" (1/3) ... [2022-11-20 12:20:31,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d19580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:20:31, skipping insertion in model container [2022-11-20 12:20:31,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:29" (2/3) ... [2022-11-20 12:20:31,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d19580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:20:31, skipping insertion in model container [2022-11-20 12:20:31,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:20:31" (3/3) ... [2022-11-20 12:20:31,341 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2022-11-20 12:20:31,353 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:20:31,364 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:20:31,364 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-11-20 12:20:31,365 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:20:31,551 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 12:20:31,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 447 transitions, 910 flow [2022-11-20 12:20:31,804 INFO L130 PetriNetUnfolder]: 13/445 cut-off events. [2022-11-20 12:20:31,804 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 12:20:31,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 445 events. 13/445 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 784 event pairs, 0 based on Foata normal form. 0/397 useless extension candidates. Maximal degree in co-relation 315. Up to 3 conditions per place. [2022-11-20 12:20:31,822 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 447 transitions, 910 flow [2022-11-20 12:20:31,835 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 429 places, 435 transitions, 879 flow [2022-11-20 12:20:31,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:20:31,851 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f9a5d2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:20:31,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-20 12:20:31,885 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2022-11-20 12:20:31,886 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:20:31,886 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:31,887 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:31,888 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-20 12:20:31,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:31,893 INFO L85 PathProgramCache]: Analyzing trace with hash -212208235, now seen corresponding path program 1 times [2022-11-20 12:20:31,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:31,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385726957] [2022-11-20 12:20:31,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:31,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:32,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:32,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:32,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385726957] [2022-11-20 12:20:32,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385726957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:32,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:32,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:32,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845410570] [2022-11-20 12:20:32,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:32,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:32,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:32,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:32,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:32,185 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 447 [2022-11-20 12:20:32,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 435 transitions, 879 flow. Second operand has 3 states, 3 states have (on average 422.3333333333333) internal successors, (1267), 3 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:32,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:32,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 447 [2022-11-20 12:20:32,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:32,511 INFO L130 PetriNetUnfolder]: 42/752 cut-off events. [2022-11-20 12:20:32,511 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-20 12:20:32,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 752 events. 42/752 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2911 event pairs, 27 based on Foata normal form. 10/666 useless extension candidates. Maximal degree in co-relation 687. Up to 70 conditions per place. [2022-11-20 12:20:32,524 INFO L137 encePairwiseOnDemand]: 440/447 looper letters, 15 selfloop transitions, 2 changer transitions 0/426 dead transitions. [2022-11-20 12:20:32,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 426 transitions, 895 flow [2022-11-20 12:20:32,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:32,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:32,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1285 transitions. [2022-11-20 12:20:32,548 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582401193139448 [2022-11-20 12:20:32,549 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1285 transitions. [2022-11-20 12:20:32,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1285 transitions. [2022-11-20 12:20:32,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:32,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1285 transitions. [2022-11-20 12:20:32,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.3333333333333) internal successors, (1285), 3 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:32,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 447.0) internal successors, (1788), 4 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:32,598 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 447.0) internal successors, (1788), 4 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:32,600 INFO L175 Difference]: Start difference. First operand has 429 places, 435 transitions, 879 flow. Second operand 3 states and 1285 transitions. [2022-11-20 12:20:32,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 426 transitions, 895 flow [2022-11-20 12:20:32,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 426 transitions, 890 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 12:20:32,617 INFO L231 Difference]: Finished difference. Result has 423 places, 426 transitions, 860 flow [2022-11-20 12:20:32,620 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=860, PETRI_PLACES=423, PETRI_TRANSITIONS=426} [2022-11-20 12:20:32,624 INFO L288 CegarLoopForPetriNet]: 429 programPoint places, -6 predicate places. [2022-11-20 12:20:32,625 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 426 transitions, 860 flow [2022-11-20 12:20:32,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 422.3333333333333) internal successors, (1267), 3 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:32,626 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:32,626 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:32,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:20:32,627 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-20 12:20:32,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:32,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2100729046, now seen corresponding path program 1 times [2022-11-20 12:20:32,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:32,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599819913] [2022-11-20 12:20:32,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:32,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:32,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:32,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:32,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599819913] [2022-11-20 12:20:32,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599819913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:32,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:32,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:32,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711488617] [2022-11-20 12:20:32,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:32,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:32,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:32,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:32,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:32,720 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 447 [2022-11-20 12:20:32,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 426 transitions, 860 flow. Second operand has 3 states, 3 states have (on average 422.3333333333333) internal successors, (1267), 3 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:32,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:32,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 447 [2022-11-20 12:20:32,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:32,936 INFO L130 PetriNetUnfolder]: 53/833 cut-off events. [2022-11-20 12:20:32,937 INFO L131 PetriNetUnfolder]: For 14/25 co-relation queries the response was YES. [2022-11-20 12:20:32,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 833 events. 53/833 cut-off events. For 14/25 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3260 event pairs, 27 based on Foata normal form. 0/727 useless extension candidates. Maximal degree in co-relation 885. Up to 77 conditions per place. [2022-11-20 12:20:32,949 INFO L137 encePairwiseOnDemand]: 444/447 looper letters, 15 selfloop transitions, 2 changer transitions 0/425 dead transitions. [2022-11-20 12:20:32,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 425 transitions, 892 flow [2022-11-20 12:20:32,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:32,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:32,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1281 transitions. [2022-11-20 12:20:32,954 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9552572706935123 [2022-11-20 12:20:32,954 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1281 transitions. [2022-11-20 12:20:32,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1281 transitions. [2022-11-20 12:20:32,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:33,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1281 transitions. [2022-11-20 12:20:33,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 427.0) internal successors, (1281), 3 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:33,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 447.0) internal successors, (1788), 4 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:33,023 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 447.0) internal successors, (1788), 4 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:33,024 INFO L175 Difference]: Start difference. First operand has 423 places, 426 transitions, 860 flow. Second operand 3 states and 1281 transitions. [2022-11-20 12:20:33,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 425 transitions, 892 flow [2022-11-20 12:20:33,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 425 transitions, 888 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:20:33,035 INFO L231 Difference]: Finished difference. Result has 422 places, 425 transitions, 858 flow [2022-11-20 12:20:33,036 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=422, PETRI_TRANSITIONS=425} [2022-11-20 12:20:33,037 INFO L288 CegarLoopForPetriNet]: 429 programPoint places, -7 predicate places. [2022-11-20 12:20:33,037 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 425 transitions, 858 flow [2022-11-20 12:20:33,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 422.3333333333333) internal successors, (1267), 3 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:33,039 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:33,039 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:33,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:20:33,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-20 12:20:33,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:33,042 INFO L85 PathProgramCache]: Analyzing trace with hash -471415335, now seen corresponding path program 1 times [2022-11-20 12:20:33,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:33,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177366670] [2022-11-20 12:20:33,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:33,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:33,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:33,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:33,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177366670] [2022-11-20 12:20:33,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177366670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:33,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:33,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:20:33,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542802044] [2022-11-20 12:20:33,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:33,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:20:33,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:33,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:20:33,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:20:33,690 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 447 [2022-11-20 12:20:33,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 425 transitions, 858 flow. Second operand has 6 states, 6 states have (on average 268.5) internal successors, (1611), 6 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:33,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:33,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 447 [2022-11-20 12:20:33,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:58,447 INFO L130 PetriNetUnfolder]: 49837/114531 cut-off events. [2022-11-20 12:20:58,447 INFO L131 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2022-11-20 12:20:58,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190079 conditions, 114531 events. 49837/114531 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 1053. Compared 1230118 event pairs, 47568 based on Foata normal form. 0/98419 useless extension candidates. Maximal degree in co-relation 190035. Up to 75428 conditions per place. [2022-11-20 12:20:59,317 INFO L137 encePairwiseOnDemand]: 441/447 looper letters, 166 selfloop transitions, 5 changer transitions 0/424 dead transitions. [2022-11-20 12:20:59,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 424 transitions, 1198 flow [2022-11-20 12:20:59,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:20:59,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:20:59,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1774 transitions. [2022-11-20 12:20:59,328 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6614466815809098 [2022-11-20 12:20:59,328 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1774 transitions. [2022-11-20 12:20:59,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1774 transitions. [2022-11-20 12:20:59,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:59,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1774 transitions. [2022-11-20 12:20:59,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 295.6666666666667) internal successors, (1774), 6 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:59,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:59,344 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:59,345 INFO L175 Difference]: Start difference. First operand has 422 places, 425 transitions, 858 flow. Second operand 6 states and 1774 transitions. [2022-11-20 12:20:59,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 424 transitions, 1198 flow [2022-11-20 12:20:59,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 424 transitions, 1194 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:20:59,357 INFO L231 Difference]: Finished difference. Result has 424 places, 424 transitions, 862 flow [2022-11-20 12:20:59,359 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=424, PETRI_TRANSITIONS=424} [2022-11-20 12:20:59,368 INFO L288 CegarLoopForPetriNet]: 429 programPoint places, -5 predicate places. [2022-11-20 12:20:59,368 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 424 transitions, 862 flow [2022-11-20 12:20:59,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 268.5) internal successors, (1611), 6 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:59,370 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:59,371 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:59,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:20:59,371 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-20 12:20:59,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:59,373 INFO L85 PathProgramCache]: Analyzing trace with hash 360874573, now seen corresponding path program 1 times [2022-11-20 12:20:59,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:59,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552192382] [2022-11-20 12:20:59,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:59,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:00,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:00,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552192382] [2022-11-20 12:21:00,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552192382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:00,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:00,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:21:00,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512699074] [2022-11-20 12:21:00,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:00,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:21:00,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:00,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:21:00,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:21:00,270 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 447 [2022-11-20 12:21:00,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 424 transitions, 862 flow. Second operand has 6 states, 6 states have (on average 269.5) internal successors, (1617), 6 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:00,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:00,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 447 [2022-11-20 12:21:00,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand