./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 5e519f3a 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_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI --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 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-5e519f3 [2022-11-03 02:13:37,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:13:37,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:13:37,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:13:37,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:13:37,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:13:37,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:13:37,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:13:37,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:13:37,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:13:37,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:13:37,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:13:37,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:13:37,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:13:37,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:13:37,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:13:37,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:13:37,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:13:37,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:13:37,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:13:37,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:13:37,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:13:37,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:13:37,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:13:37,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:13:37,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:13:37,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:13:37,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:13:37,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:13:37,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:13:37,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:13:37,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:13:37,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:13:37,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:13:37,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:13:37,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:13:37,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:13:37,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:13:37,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:13:37,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:13:37,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:13:37,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:13:37,756 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:13:37,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:13:37,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:13:37,757 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:13:37,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:13:37,758 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:13:37,758 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:13:37,759 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:13:37,759 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:13:37,759 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:13:37,760 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:13:37,760 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:13:37,760 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:13:37,761 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:13:37,761 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:13:37,761 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:13:37,761 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:13:37,761 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:13:37,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:13:37,762 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:13:37,762 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:13:37,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:13:37,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:13:37,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:13:37,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:13:37,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:13:37,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:13:37,763 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:13:37,763 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:13:37,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:13:37,764 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:13:37,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:13:37,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:13:37,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:13:37,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:13:37,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:13:37,765 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:13:37,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:13:37,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:13:37,765 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:13:37,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:13:37,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:13:37,766 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:13:37,766 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_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32482febe38d61a93fd0705f3ad97c9c1ccc991b1238f75e4d1dd99bfb01c35e [2022-11-03 02:13:38,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:13:38,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:13:38,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:13:38,112 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:13:38,113 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:13:38,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i [2022-11-03 02:13:38,191 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/data/ceda82007/4846fe5d2a724e1381fcbe4f0fdee566/FLAGb5f2c282d [2022-11-03 02:13:38,809 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:13:38,810 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i [2022-11-03 02:13:38,830 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/data/ceda82007/4846fe5d2a724e1381fcbe4f0fdee566/FLAGb5f2c282d [2022-11-03 02:13:39,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/data/ceda82007/4846fe5d2a724e1381fcbe4f0fdee566 [2022-11-03 02:13:39,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:13:39,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:13:39,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:13:39,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:13:39,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:13:39,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:13:39" (1/1) ... [2022-11-03 02:13:39,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cad9018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39, skipping insertion in model container [2022-11-03 02:13:39,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:13:39" (1/1) ... [2022-11-03 02:13:39,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:13:39,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:13:39,355 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-03 02:13:39,758 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[47275,47288] [2022-11-03 02:13:39,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[47463,47476] [2022-11-03 02:13:39,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48230,48243] [2022-11-03 02:13:39,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48344,48357] [2022-11-03 02:13:39,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48816,48829] [2022-11-03 02:13:39,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48872,48885] [2022-11-03 02:13:39,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49384,49397] [2022-11-03 02:13:39,816 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49443,49456] [2022-11-03 02:13:39,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49522,49535] [2022-11-03 02:13:39,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:13:39,825 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:13:39,836 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-03 02:13:39,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[47275,47288] [2022-11-03 02:13:39,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[47463,47476] [2022-11-03 02:13:39,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48230,48243] [2022-11-03 02:13:39,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48344,48357] [2022-11-03 02:13:39,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48816,48829] [2022-11-03 02:13:39,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48872,48885] [2022-11-03 02:13:39,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49384,49397] [2022-11-03 02:13:39,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49443,49456] [2022-11-03 02:13:39,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49522,49535] [2022-11-03 02:13:39,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:13:39,961 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:13:39,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39 WrapperNode [2022-11-03 02:13:39,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:13:39,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:13:39,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:13:39,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:13:39,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39" (1/1) ... [2022-11-03 02:13:40,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39" (1/1) ... [2022-11-03 02:13:40,120 INFO L138 Inliner]: procedures = 278, calls = 103, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 945 [2022-11-03 02:13:40,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:13:40,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:13:40,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:13:40,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:13:40,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39" (1/1) ... [2022-11-03 02:13:40,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39" (1/1) ... [2022-11-03 02:13:40,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39" (1/1) ... [2022-11-03 02:13:40,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39" (1/1) ... [2022-11-03 02:13:40,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39" (1/1) ... [2022-11-03 02:13:40,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39" (1/1) ... [2022-11-03 02:13:40,269 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39" (1/1) ... [2022-11-03 02:13:40,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39" (1/1) ... [2022-11-03 02:13:40,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:13:40,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:13:40,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:13:40,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:13:40,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39" (1/1) ... [2022-11-03 02:13:40,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:13:40,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:13:40,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:13:40,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12d88f6-0528-408b-9dc1-b70b722dc3c9/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:13:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-11-03 02:13:40,376 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-11-03 02:13:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:13:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:13:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:13:40,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:13:40,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:13:40,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:13:40,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:13:40,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:13:40,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:13:40,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:13:40,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:13:40,383 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:13:40,583 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:13:40,585 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:13:42,268 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:13:42,281 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:13:42,281 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-03 02:13:42,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:13:42 BoogieIcfgContainer [2022-11-03 02:13:42,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:13:42,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:13:42,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:13:42,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:13:42,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:13:39" (1/3) ... [2022-11-03 02:13:42,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b9fbce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:13:42, skipping insertion in model container [2022-11-03 02:13:42,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:39" (2/3) ... [2022-11-03 02:13:42,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b9fbce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:13:42, skipping insertion in model container [2022-11-03 02:13:42,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:13:42" (3/3) ... [2022-11-03 02:13:42,296 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.i [2022-11-03 02:13:42,304 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:13:42,314 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:13:42,315 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2022-11-03 02:13:42,315 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:13:42,526 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-03 02:13:42,588 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:13:42,600 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1095 places, 1124 transitions, 2256 flow [2022-11-03 02:13:42,603 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 1095 places, 1124 transitions, 2256 flow [2022-11-03 02:13:42,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1095 places, 1124 transitions, 2256 flow [2022-11-03 02:13:43,237 INFO L130 PetriNetUnfolder]: 33/1123 cut-off events. [2022-11-03 02:13:43,237 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-03 02:13:43,268 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 3230 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. [2022-11-03 02:13:43,339 INFO L118 LiptonReduction]: Number of co-enabled transitions 217728 [2022-11-03 02:16:13,569 WARN L234 SmtUtils]: Spent 32.14s on a formula simplification that was a NOOP. DAG size: 172 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:16:34,747 WARN L234 SmtUtils]: Spent 21.17s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:17:01,802 WARN L234 SmtUtils]: Spent 27.05s on a formula simplification that was a NOOP. DAG size: 172 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:17:20,721 WARN L234 SmtUtils]: Spent 18.92s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:17:32,047 WARN L234 SmtUtils]: Spent 10.10s on a formula simplification. DAG size of input: 140 DAG size of output: 134 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:17:47,603 WARN L234 SmtUtils]: Spent 11.37s on a formula simplification. DAG size of input: 143 DAG size of output: 137 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:18:04,542 WARN L234 SmtUtils]: Spent 12.21s on a formula simplification. DAG size of input: 133 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:18:21,339 WARN L234 SmtUtils]: Spent 13.26s on a formula simplification. DAG size of input: 136 DAG size of output: 134 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:18:31,601 WARN L234 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 121 DAG size of output: 112 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:18:39,713 WARN L234 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 124 DAG size of output: 115 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:23:47,014 WARN L234 SmtUtils]: Spent 5.07m on a formula simplification. DAG size of input: 266 DAG size of output: 264 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:25:49,555 WARN L234 SmtUtils]: Spent 2.04m on a formula simplification that was a NOOP. DAG size: 246 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)