./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS --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-8393723 [2022-11-19 06:37:33,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:37:33,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:37:33,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:37:33,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:37:33,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:37:33,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:37:33,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:37:33,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:37:33,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:37:33,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:37:33,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:37:33,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:37:33,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:37:33,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:37:33,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:37:33,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:37:33,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:37:33,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:37:33,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:37:33,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:37:33,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:37:33,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:37:33,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:37:33,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:37:33,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:37:33,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:37:33,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:37:33,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:37:33,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:37:33,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:37:33,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:37:33,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:37:33,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:37:33,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:37:33,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:37:33,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:37:33,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:37:33,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:37:33,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:37:33,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:37:33,262 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-19 06:37:33,315 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:37:33,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:37:33,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:37:33,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:37:33,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:37:33,318 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:37:33,318 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:37:33,319 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:37:33,319 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:37:33,319 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:37:33,321 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:37:33,321 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:37:33,321 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:37:33,322 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:37:33,322 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:37:33,322 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:37:33,322 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:37:33,323 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:37:33,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:37:33,324 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:37:33,324 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 06:37:33,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:37:33,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:37:33,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:37:33,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:37:33,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:37:33,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:37:33,326 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-19 06:37:33,326 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:37:33,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:37:33,327 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:37:33,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:37:33,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:37:33,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:37:33,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:37:33,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:37:33,329 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:37:33,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:37:33,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:37:33,330 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:37:33,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:37:33,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:37:33,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:37:33,331 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_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32482febe38d61a93fd0705f3ad97c9c1ccc991b1238f75e4d1dd99bfb01c35e [2022-11-19 06:37:33,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:37:33,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:37:33,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:37:33,785 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:37:33,786 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:37:33,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i [2022-11-19 06:37:33,888 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/data/d4ad9e943/6a8f886842d84f0595cf4ba5acc125b3/FLAG73d782a53 [2022-11-19 06:37:34,621 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:37:34,621 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i [2022-11-19 06:37:34,645 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/data/d4ad9e943/6a8f886842d84f0595cf4ba5acc125b3/FLAG73d782a53 [2022-11-19 06:37:34,796 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/data/d4ad9e943/6a8f886842d84f0595cf4ba5acc125b3 [2022-11-19 06:37:34,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:37:34,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:37:34,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:37:34,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:37:34,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:37:34,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:37:34" (1/1) ... [2022-11-19 06:37:34,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ce20e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:34, skipping insertion in model container [2022-11-19 06:37:34,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:37:34" (1/1) ... [2022-11-19 06:37:34,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:37:34,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:37:35,165 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-19 06:37:35,662 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[47275,47288] [2022-11-19 06:37:35,674 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[47463,47476] [2022-11-19 06:37:35,721 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48230,48243] [2022-11-19 06:37:35,724 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48344,48357] [2022-11-19 06:37:35,733 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48816,48829] [2022-11-19 06:37:35,734 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48872,48885] [2022-11-19 06:37:35,745 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49384,49397] [2022-11-19 06:37:35,746 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49443,49456] [2022-11-19 06:37:35,748 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49522,49535] [2022-11-19 06:37:35,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:37:35,758 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:37:35,783 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-19 06:37:35,816 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[47275,47288] [2022-11-19 06:37:35,819 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[47463,47476] [2022-11-19 06:37:35,843 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48230,48243] [2022-11-19 06:37:35,844 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48344,48357] [2022-11-19 06:37:35,851 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48816,48829] [2022-11-19 06:37:35,861 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[48872,48885] [2022-11-19 06:37:35,867 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49384,49397] [2022-11-19 06:37:35,868 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49443,49456] [2022-11-19 06:37:35,869 WARN L234 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_ac66bd39-e22f-40c9-8555-6e816290365c/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i[49522,49535] [2022-11-19 06:37:35,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:37:35,955 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:37:35,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:35 WrapperNode [2022-11-19 06:37:35,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:37:35,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:37:35,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:37:35,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:37:35,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:35" (1/1) ... [2022-11-19 06:37:36,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:35" (1/1) ... [2022-11-19 06:37:36,112 INFO L138 Inliner]: procedures = 278, calls = 103, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 945 [2022-11-19 06:37:36,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:37:36,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:37:36,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:37:36,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:37:36,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:35" (1/1) ... [2022-11-19 06:37:36,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:35" (1/1) ... [2022-11-19 06:37:36,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:35" (1/1) ... [2022-11-19 06:37:36,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:35" (1/1) ... [2022-11-19 06:37:36,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:35" (1/1) ... [2022-11-19 06:37:36,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:35" (1/1) ... [2022-11-19 06:37:36,240 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:35" (1/1) ... [2022-11-19 06:37:36,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:35" (1/1) ... [2022-11-19 06:37:36,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:37:36,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:37:36,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:37:36,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:37:36,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:35" (1/1) ... [2022-11-19 06:37:36,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:37:36,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:37:36,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:37:36,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac66bd39-e22f-40c9-8555-6e816290365c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:37:36,362 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-11-19 06:37:36,362 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-11-19 06:37:36,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:37:36,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:37:36,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:37:36,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:37:36,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:37:36,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:37:36,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:37:36,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:37:36,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:37:36,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:37:36,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:37:36,368 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 06:37:36,627 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:37:36,629 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:37:38,497 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:37:38,523 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:37:38,523 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-19 06:37:38,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:37:38 BoogieIcfgContainer [2022-11-19 06:37:38,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:37:38,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:37:38,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:37:38,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:37:38,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:37:34" (1/3) ... [2022-11-19 06:37:38,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26857eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:37:38, skipping insertion in model container [2022-11-19 06:37:38,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:37:35" (2/3) ... [2022-11-19 06:37:38,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26857eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:37:38, skipping insertion in model container [2022-11-19 06:37:38,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:37:38" (3/3) ... [2022-11-19 06:37:38,543 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.i [2022-11-19 06:37:38,554 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 06:37:38,567 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:37:38,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2022-11-19 06:37:38,568 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 06:37:38,846 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-19 06:37:38,912 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 06:37:38,936 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1095 places, 1124 transitions, 2256 flow [2022-11-19 06:37:38,946 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1095 places, 1124 transitions, 2256 flow [2022-11-19 06:37:38,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1095 places, 1124 transitions, 2256 flow [2022-11-19 06:37:39,605 INFO L130 PetriNetUnfolder]: 33/1123 cut-off events. [2022-11-19 06:37:39,605 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-19 06:37:39,639 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 3236 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. [2022-11-19 06:37:39,767 INFO L119 LiptonReduction]: Number of co-enabled transitions 217728 [2022-11-19 06:39:27,534 WARN L233 SmtUtils]: Spent 9.75s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:39:33,597 WARN L233 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 112 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:39:42,651 WARN L233 SmtUtils]: Spent 9.05s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:39:57,863 WARN L233 SmtUtils]: Spent 5.17s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:40:37,406 WARN L233 SmtUtils]: Spent 15.71s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:40:49,419 WARN L233 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:41:03,535 WARN L233 SmtUtils]: Spent 14.11s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:41:16,803 WARN L233 SmtUtils]: Spent 13.27s on a formula simplification that was a NOOP. DAG size: 151 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:41:50,570 WARN L233 SmtUtils]: Spent 15.60s on a formula simplification that was a NOOP. DAG size: 225 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:42:08,767 WARN L233 SmtUtils]: Spent 18.20s on a formula simplification that was a NOOP. DAG size: 209 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:42:34,305 WARN L233 SmtUtils]: Spent 25.53s on a formula simplification that was a NOOP. DAG size: 225 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:42:42,189 WARN L233 SmtUtils]: Spent 7.88s on a formula simplification that was a NOOP. DAG size: 209 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:46:01,687 WARN L233 SmtUtils]: Spent 3.32m on a formula simplification. DAG size of input: 335 DAG size of output: 321 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 06:48:58,440 WARN L233 SmtUtils]: Spent 2.95m 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) [2022-11-19 06:52:43,918 WARN L233 SmtUtils]: Spent 3.76m on a formula simplification. DAG size of input: 344 DAG size of output: 328 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)