./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43c4691e367ff0d8a9949fa90f15eddbc091ab75ed1546de74dafe83c2376639 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:05:21,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:05:21,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:05:21,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:05:21,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:05:21,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:05:21,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:05:21,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:05:21,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:05:21,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:05:21,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:05:21,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:05:21,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:05:21,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:05:21,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:05:21,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:05:21,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:05:21,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:05:21,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:05:21,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:05:21,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:05:21,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:05:21,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:05:21,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:05:21,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:05:21,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:05:21,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:05:21,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:05:21,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:05:21,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:05:21,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:05:21,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:05:21,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:05:21,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:05:21,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:05:21,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:05:21,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:05:21,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:05:21,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:05:21,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:05:21,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:05:21,374 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 14:05:21,413 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:05:21,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:05:21,417 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:05:21,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:05:21,418 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:05:21,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:05:21,419 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:05:21,419 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:05:21,419 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:05:21,420 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:05:21,421 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:05:21,421 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:05:21,421 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:05:21,421 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:05:21,421 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:05:21,422 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:05:21,422 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:05:21,422 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:05:21,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:05:21,423 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:05:21,423 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:05:21,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:05:21,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:05:21,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:05:21,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:05:21,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:05:21,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:05:21,426 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 14:05:21,426 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:05:21,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:05:21,426 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:05:21,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:05:21,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:05:21,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:05:21,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:05:21,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:05:21,428 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:05:21,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:05:21,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:05:21,428 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:05:21,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:05:21,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:05:21,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:05:21,429 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_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c4691e367ff0d8a9949fa90f15eddbc091ab75ed1546de74dafe83c2376639 [2022-11-23 14:05:21,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:05:21,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:05:21,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:05:21,756 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:05:21,757 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:05:21,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i [2022-11-23 14:05:24,861 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:05:25,172 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:05:25,172 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i [2022-11-23 14:05:25,192 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW/data/49836e612/2ac767b712f045b78ca3d134b6287f51/FLAG40d58c559 [2022-11-23 14:05:25,216 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW/data/49836e612/2ac767b712f045b78ca3d134b6287f51 [2022-11-23 14:05:25,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:05:25,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:05:25,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:05:25,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:05:25,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:05:25,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:25" (1/1) ... [2022-11-23 14:05:25,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d01f956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:25, skipping insertion in model container [2022-11-23 14:05:25,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:25" (1/1) ... [2022-11-23 14:05:25,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:05:25,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:05:25,431 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:05:25,801 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[47275,47288] [2022-11-23 14:05:25,807 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[47463,47476] [2022-11-23 14:05:25,850 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[48230,48243] [2022-11-23 14:05:25,852 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[48344,48357] [2022-11-23 14:05:25,861 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[48781,48794] [2022-11-23 14:05:25,862 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[48837,48850] [2022-11-23 14:05:25,872 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[49349,49362] [2022-11-23 14:05:25,885 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[49408,49421] [2022-11-23 14:05:25,887 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[49487,49500] [2022-11-23 14:05:25,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:05:25,896 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:05:25,908 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:05:25,938 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[47275,47288] [2022-11-23 14:05:25,941 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[47463,47476] [2022-11-23 14:05:25,954 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[48230,48243] [2022-11-23 14:05:25,955 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[48344,48357] [2022-11-23 14:05:25,961 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[48781,48794] [2022-11-23 14:05:25,962 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[48837,48850] [2022-11-23 14:05:25,968 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[49349,49362] [2022-11-23 14:05:25,969 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[49408,49421] [2022-11-23 14:05:25,970 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_af960414-9073-462c-874e-2a942e0bdc78/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i[49487,49500] [2022-11-23 14:05:25,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:05:26,034 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:05:26,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:26 WrapperNode [2022-11-23 14:05:26,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:05:26,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:05:26,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:05:26,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:05:26,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:26" (1/1) ... [2022-11-23 14:05:26,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:26" (1/1) ... [2022-11-23 14:05:26,166 INFO L138 Inliner]: procedures = 278, calls = 101, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 924 [2022-11-23 14:05:26,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:05:26,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:05:26,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:05:26,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:05:26,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:26" (1/1) ... [2022-11-23 14:05:26,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:26" (1/1) ... [2022-11-23 14:05:26,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:26" (1/1) ... [2022-11-23 14:05:26,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:26" (1/1) ... [2022-11-23 14:05:26,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:26" (1/1) ... [2022-11-23 14:05:26,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:26" (1/1) ... [2022-11-23 14:05:26,339 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:26" (1/1) ... [2022-11-23 14:05:26,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:26" (1/1) ... [2022-11-23 14:05:26,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:05:26,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:05:26,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:05:26,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:05:26,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:26" (1/1) ... [2022-11-23 14:05:26,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:05:26,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:05:26,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:05:26,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af960414-9073-462c-874e-2a942e0bdc78/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:05:26,464 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-11-23 14:05:26,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-11-23 14:05:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:05:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:05:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:05:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:05:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:05:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:05:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:05:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:05:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:05:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:05:26,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:05:26,471 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:05:26,692 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:05:26,694 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:05:28,328 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:05:28,355 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:05:28,355 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-23 14:05:28,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:28 BoogieIcfgContainer [2022-11-23 14:05:28,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:05:28,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:05:28,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:05:28,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:05:28,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:05:25" (1/3) ... [2022-11-23 14:05:28,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f4cea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:28, skipping insertion in model container [2022-11-23 14:05:28,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:26" (2/3) ... [2022-11-23 14:05:28,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f4cea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:28, skipping insertion in model container [2022-11-23 14:05:28,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:28" (3/3) ... [2022-11-23 14:05:28,377 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.i [2022-11-23 14:05:28,386 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:05:28,397 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:05:28,397 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 97 error locations. [2022-11-23 14:05:28,397 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:05:28,589 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-23 14:05:28,661 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:05:28,684 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1072 places, 1100 transitions, 2208 flow [2022-11-23 14:05:28,689 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1072 places, 1100 transitions, 2208 flow [2022-11-23 14:05:28,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1072 places, 1100 transitions, 2208 flow [2022-11-23 14:05:29,327 INFO L130 PetriNetUnfolder]: 32/1099 cut-off events. [2022-11-23 14:05:29,328 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 14:05:29,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1104 conditions, 1099 events. 32/1099 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3103 event pairs, 0 based on Foata normal form. 0/970 useless extension candidates. Maximal degree in co-relation 792. Up to 3 conditions per place. [2022-11-23 14:05:29,440 INFO L119 LiptonReduction]: Number of co-enabled transitions 209664 [2022-11-23 14:07:25,270 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification that was a NOOP. DAG size: 116 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:07:35,449 WARN L233 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 116 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:08:06,549 WARN L233 SmtUtils]: Spent 13.87s on a formula simplification. DAG size of input: 141 DAG size of output: 138 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:08:14,203 WARN L233 SmtUtils]: Spent 7.65s on a formula simplification that was a NOOP. DAG size: 136 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:08:28,743 WARN L233 SmtUtils]: Spent 14.54s on a formula simplification. DAG size of input: 141 DAG size of output: 139 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:08:41,976 WARN L233 SmtUtils]: Spent 8.33s on a formula simplification. DAG size of input: 116 DAG size of output: 110 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:08:55,329 WARN L233 SmtUtils]: Spent 9.14s on a formula simplification. DAG size of input: 119 DAG size of output: 113 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:09:44,204 WARN L233 SmtUtils]: Spent 44.53s on a formula simplification that was a NOOP. DAG size: 195 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:10:28,244 WARN L233 SmtUtils]: Spent 44.04s 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) [2022-11-23 14:11:35,999 WARN L233 SmtUtils]: Spent 1.13m on a formula simplification that was a NOOP. DAG size: 196 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:12:29,589 WARN L233 SmtUtils]: Spent 53.59s on a formula simplification that was a NOOP. DAG size: 186 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:13:43,802 WARN L233 SmtUtils]: Spent 1.23m on a formula simplification that was a NOOP. DAG size: 298 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:15:33,157 WARN L233 SmtUtils]: Spent 1.82m on a formula simplification that was a NOOP. DAG size: 282 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:18:26,880 WARN L233 SmtUtils]: Spent 2.90m on a formula simplification that was a NOOP. DAG size: 299 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:20:06,918 WARN L233 SmtUtils]: Spent 1.67m on a formula simplification that was a NOOP. DAG size: 283 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)