./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8 --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 32482febe38d61a93fd0705f3ad97c9c1ccc991b1238f75e4d1dd99bfb01c35e --- 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-2329fc7 [2022-12-13 12:51:39,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:51:39,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:51:39,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:51:39,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:51:39,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:51:39,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:51:39,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:51:39,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:51:39,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:51:39,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:51:39,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:51:39,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:51:39,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:51:39,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:51:39,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:51:39,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:51:39,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:51:39,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:51:39,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:51:39,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:51:39,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:51:39,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:51:39,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:51:39,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:51:39,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:51:39,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:51:39,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:51:39,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:51:39,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:51:39,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:51:39,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:51:39,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:51:39,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:51:39,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:51:39,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:51:39,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:51:39,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:51:39,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:51:39,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:51:39,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:51:39,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 12:51:39,259 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:51:39,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:51:39,260 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:51:39,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:51:39,261 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:51:39,261 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:51:39,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:51:39,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:51:39,262 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:51:39,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:51:39,262 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:51:39,263 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:51:39,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:51:39,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:51:39,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:51:39,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:51:39,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:51:39,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:51:39,264 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 12:51:39,264 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:51:39,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:51:39,265 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:51:39,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:51:39,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:51:39,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:51:39,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:51:39,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:51:39,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:51:39,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:51:39,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:51:39,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:51:39,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:51:39,267 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:51:39,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:51:39,267 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:51:39,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:51:39,267 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:51:39,268 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32482febe38d61a93fd0705f3ad97c9c1ccc991b1238f75e4d1dd99bfb01c35e [2022-12-13 12:51:39,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:51:39,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:51:39,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:51:39,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:51:39,448 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:51:39,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i [2022-12-13 12:51:42,011 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:51:42,250 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:51:42,250 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i [2022-12-13 12:51:42,264 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8/data/83bfe6ca3/862a41749f7a410687e2c2f46e664e73/FLAG7a5d6b632 [2022-12-13 12:51:42,597 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8/data/83bfe6ca3/862a41749f7a410687e2c2f46e664e73 [2022-12-13 12:51:42,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:51:42,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:51:42,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:51:42,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:51:42,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:51:42,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:51:42" (1/1) ... [2022-12-13 12:51:42,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4029df30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:42, skipping insertion in model container [2022-12-13 12:51:42,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:51:42" (1/1) ... [2022-12-13 12:51:42,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:51:42,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:51:42,770 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:51:43,096 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[47275,47288] [2022-12-13 12:51:43,101 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[47463,47476] [2022-12-13 12:51:43,119 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48230,48243] [2022-12-13 12:51:43,120 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48344,48357] [2022-12-13 12:51:43,130 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48816,48829] [2022-12-13 12:51:43,131 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48872,48885] [2022-12-13 12:51:43,140 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49384,49397] [2022-12-13 12:51:43,141 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49443,49456] [2022-12-13 12:51:43,142 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49522,49535] [2022-12-13 12:51:43,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:51:43,150 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:51:43,159 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:51:43,190 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[47275,47288] [2022-12-13 12:51:43,192 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[47463,47476] [2022-12-13 12:51:43,203 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48230,48243] [2022-12-13 12:51:43,204 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48344,48357] [2022-12-13 12:51:43,210 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48816,48829] [2022-12-13 12:51:43,210 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48872,48885] [2022-12-13 12:51:43,215 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49384,49397] [2022-12-13 12:51:43,216 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49443,49456] [2022-12-13 12:51:43,217 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_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49522,49535] [2022-12-13 12:51:43,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:51:43,281 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:51:43,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:43 WrapperNode [2022-12-13 12:51:43,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:51:43,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:51:43,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:51:43,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:51:43,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:43" (1/1) ... [2022-12-13 12:51:43,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:43" (1/1) ... [2022-12-13 12:51:43,361 INFO L138 Inliner]: procedures = 278, calls = 103, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 945 [2022-12-13 12:51:43,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:51:43,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:51:43,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:51:43,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:51:43,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:43" (1/1) ... [2022-12-13 12:51:43,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:43" (1/1) ... [2022-12-13 12:51:43,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:43" (1/1) ... [2022-12-13 12:51:43,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:43" (1/1) ... [2022-12-13 12:51:43,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:43" (1/1) ... [2022-12-13 12:51:43,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:43" (1/1) ... [2022-12-13 12:51:43,455 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:43" (1/1) ... [2022-12-13 12:51:43,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:43" (1/1) ... [2022-12-13 12:51:43,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:51:43,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:51:43,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:51:43,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:51:43,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:43" (1/1) ... [2022-12-13 12:51:43,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:51:43,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:43,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:43,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57cfc53-00a8-4c82-ae54-b26a8a9ec83a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:51:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-12-13 12:51:43,534 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-12-13 12:51:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:51:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 12:51:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:51:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 12:51:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:51:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 12:51:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:51:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 12:51:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:51:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:51:43,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:51:43,537 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 12:51:43,668 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:51:43,670 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:51:44,715 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:51:44,724 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:51:44,724 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 12:51:44,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:51:44 BoogieIcfgContainer [2022-12-13 12:51:44,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:51:44,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:51:44,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:51:44,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:51:44,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:51:42" (1/3) ... [2022-12-13 12:51:44,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574b3348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:51:44, skipping insertion in model container [2022-12-13 12:51:44,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:43" (2/3) ... [2022-12-13 12:51:44,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574b3348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:51:44, skipping insertion in model container [2022-12-13 12:51:44,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:51:44" (3/3) ... [2022-12-13 12:51:44,733 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.i [2022-12-13 12:51:44,739 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 12:51:44,746 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:51:44,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2022-12-13 12:51:44,746 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:51:44,852 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 12:51:44,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1095 places, 1124 transitions, 2256 flow [2022-12-13 12:51:45,256 INFO L130 PetriNetUnfolder]: 33/1123 cut-off events. [2022-12-13 12:51:45,256 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 12:51:45,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 1123 events. 33/1123 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3235 event pairs, 0 based on Foata normal form. 0/991 useless extension candidates. Maximal degree in co-relation 816. Up to 3 conditions per place. [2022-12-13 12:51:45,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 1095 places, 1124 transitions, 2256 flow [2022-12-13 12:51:45,289 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1079 places, 1108 transitions, 2222 flow [2022-12-13 12:51:45,292 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:51:45,300 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1079 places, 1108 transitions, 2222 flow [2022-12-13 12:51:45,302 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1079 places, 1108 transitions, 2222 flow [2022-12-13 12:51:45,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1079 places, 1108 transitions, 2222 flow [2022-12-13 12:51:45,535 INFO L130 PetriNetUnfolder]: 33/1108 cut-off events. [2022-12-13 12:51:45,535 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 12:51:45,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1113 conditions, 1108 events. 33/1108 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3125 event pairs, 0 based on Foata normal form. 0/977 useless extension candidates. Maximal degree in co-relation 816. Up to 3 conditions per place. [2022-12-13 12:51:45,596 INFO L119 LiptonReduction]: Number of co-enabled transitions 217728 [2022-12-13 12:52:32,401 WARN L233 SmtUtils]: Spent 13.55s on a formula simplification. DAG size of input: 126 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:52:51,270 WARN L233 SmtUtils]: Spent 14.53s on a formula simplification. DAG size of input: 126 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:53:11,334 WARN L233 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 149 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:53:17,161 WARN L233 SmtUtils]: Spent 5.83s on a formula simplification that was a NOOP. DAG size: 149 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:53:43,150 WARN L233 SmtUtils]: Spent 7.17s on a formula simplification. DAG size of input: 149 DAG size of output: 142 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:53:53,448 WARN L233 SmtUtils]: Spent 7.88s on a formula simplification. DAG size of input: 152 DAG size of output: 145 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:54:22,802 WARN L233 SmtUtils]: Spent 26.69s on a formula simplification. DAG size of input: 193 DAG size of output: 191 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:54:36,094 WARN L233 SmtUtils]: Spent 13.29s on a formula simplification that was a NOOP. DAG size: 191 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:54:52,937 WARN L233 SmtUtils]: Spent 16.84s on a formula simplification. DAG size of input: 193 DAG size of output: 191 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:55:01,078 WARN L233 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 191 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:55:51,733 WARN L233 SmtUtils]: Spent 29.68s on a formula simplification that was a NOOP. DAG size: 204 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:56:21,290 WARN L233 SmtUtils]: Spent 29.55s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:56:44,307 WARN L233 SmtUtils]: Spent 23.02s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:57:14,512 WARN L233 SmtUtils]: Spent 30.20s on a formula simplification that was a NOOP. DAG size: 185 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:03:48,582 WARN L233 SmtUtils]: Spent 6.53m on a formula simplification. DAG size of input: 347 DAG size of output: 333 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:05:27,332 WARN L233 SmtUtils]: Spent 1.65m on a formula simplification that was a NOOP. DAG size: 311 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)