./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 --- 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-dbf71c6-m [2022-10-17 17:12:54,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:12:54,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:12:54,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:12:54,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:12:54,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:12:54,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:12:54,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:12:54,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:12:54,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:12:54,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:12:54,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:12:54,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:12:54,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:12:54,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:12:54,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:12:54,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:12:54,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:12:54,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:12:54,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:12:54,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:12:54,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:12:54,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:12:54,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:12:54,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:12:54,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:12:54,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:12:54,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:12:54,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:12:54,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:12:54,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:12:54,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:12:54,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:12:54,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:12:54,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:12:54,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:12:54,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:12:54,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:12:54,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:12:54,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:12:54,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:12:54,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:12:54,272 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:12:54,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:12:54,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:12:54,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:12:54,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:12:54,274 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:12:54,274 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:12:54,274 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:12:54,275 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:12:54,275 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:12:54,276 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:12:54,276 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:12:54,276 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:12:54,277 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:12:54,277 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:12:54,277 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:12:54,277 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:12:54,277 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:12:54,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:12:54,278 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:12:54,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:12:54,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:12:54,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:12:54,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:12:54,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:12:54,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:12:54,280 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:12:54,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:12:54,280 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:12:54,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:12:54,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:12:54,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:12:54,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:12:54,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:12:54,282 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:12:54,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:12:54,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:12:54,282 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:12:54,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:12:54,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:12:54,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:12:54,283 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_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 [2022-10-17 17:12:54,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:12:54,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:12:54,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:12:54,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:12:54,584 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:12:54,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2022-10-17 17:12:54,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/data/118622da3/67b2c31d6aa642d2b68a96d0219c4160/FLAG74f20ca41 [2022-10-17 17:12:55,168 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:12:55,170 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2022-10-17 17:12:55,189 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/data/118622da3/67b2c31d6aa642d2b68a96d0219c4160/FLAG74f20ca41 [2022-10-17 17:12:55,478 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/data/118622da3/67b2c31d6aa642d2b68a96d0219c4160 [2022-10-17 17:12:55,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:12:55,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:12:55,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:12:55,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:12:55,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:12:55,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:12:55" (1/1) ... [2022-10-17 17:12:55,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72bdff1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:55, skipping insertion in model container [2022-10-17 17:12:55,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:12:55" (1/1) ... [2022-10-17 17:12:55,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:12:55,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:12:55,749 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-10-17 17:12:55,922 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[30448,30461] [2022-10-17 17:12:55,933 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[30811,30824] [2022-10-17 17:12:55,943 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31483,31496] [2022-10-17 17:12:55,944 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31534,31547] [2022-10-17 17:12:55,946 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31683,31696] [2022-10-17 17:12:55,947 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31760,31773] [2022-10-17 17:12:55,948 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31807,31820] [2022-10-17 17:12:55,950 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31916,31929] [2022-10-17 17:12:55,952 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32035,32048] [2022-10-17 17:12:55,953 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32083,32096] [2022-10-17 17:12:55,954 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32160,32173] [2022-10-17 17:12:55,955 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32286,32299] [2022-10-17 17:12:55,970 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32897,32910] [2022-10-17 17:12:55,972 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32974,32987] [2022-10-17 17:12:55,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:12:55,986 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:12:55,999 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-10-17 17:12:56,018 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[30448,30461] [2022-10-17 17:12:56,021 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[30811,30824] [2022-10-17 17:12:56,025 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31483,31496] [2022-10-17 17:12:56,026 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31534,31547] [2022-10-17 17:12:56,028 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31683,31696] [2022-10-17 17:12:56,029 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31760,31773] [2022-10-17 17:12:56,030 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31807,31820] [2022-10-17 17:12:56,032 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[31916,31929] [2022-10-17 17:12:56,033 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32035,32048] [2022-10-17 17:12:56,034 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32083,32096] [2022-10-17 17:12:56,035 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32160,32173] [2022-10-17 17:12:56,036 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32286,32299] [2022-10-17 17:12:56,043 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32897,32910] [2022-10-17 17:12:56,044 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_9d31890e-c051-4b14-9d67-fd03ada5568f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i[32974,32987] [2022-10-17 17:12:56,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:12:56,085 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:12:56,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:56 WrapperNode [2022-10-17 17:12:56,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:12:56,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:12:56,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:12:56,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:12:56,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:56" (1/1) ... [2022-10-17 17:12:56,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:56" (1/1) ... [2022-10-17 17:12:56,151 INFO L138 Inliner]: procedures = 174, calls = 78, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 474 [2022-10-17 17:12:56,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:12:56,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:12:56,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:12:56,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:12:56,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:56" (1/1) ... [2022-10-17 17:12:56,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:56" (1/1) ... [2022-10-17 17:12:56,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:56" (1/1) ... [2022-10-17 17:12:56,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:56" (1/1) ... [2022-10-17 17:12:56,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:56" (1/1) ... [2022-10-17 17:12:56,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:56" (1/1) ... [2022-10-17 17:12:56,201 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:56" (1/1) ... [2022-10-17 17:12:56,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:56" (1/1) ... [2022-10-17 17:12:56,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:12:56,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:12:56,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:12:56,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:12:56,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:56" (1/1) ... [2022-10-17 17:12:56,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:12:56,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:12:56,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:12:56,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d31890e-c051-4b14-9d67-fd03ada5568f/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:12:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:12:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:12:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-10-17 17:12:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-10-17 17:12:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-10-17 17:12:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:12:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:12:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:12:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:12:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:12:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:12:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:12:56,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:12:56,336 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 17:12:56,481 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:12:56,483 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:12:57,468 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:12:57,488 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:12:57,488 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-10-17 17:12:57,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:12:57 BoogieIcfgContainer [2022-10-17 17:12:57,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:12:57,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:12:57,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:12:57,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:12:57,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:12:55" (1/3) ... [2022-10-17 17:12:57,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43319d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:12:57, skipping insertion in model container [2022-10-17 17:12:57,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:12:56" (2/3) ... [2022-10-17 17:12:57,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43319d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:12:57, skipping insertion in model container [2022-10-17 17:12:57,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:12:57" (3/3) ... [2022-10-17 17:12:57,501 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_3t.i [2022-10-17 17:12:57,514 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 17:12:57,522 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:12:57,522 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-10-17 17:12:57,522 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 17:12:57,639 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-17 17:12:57,699 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-10-17 17:12:57,717 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 487 places, 547 transitions, 1102 flow [2022-10-17 17:12:57,726 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 487 places, 547 transitions, 1102 flow [2022-10-17 17:12:57,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 487 places, 547 transitions, 1102 flow [2022-10-17 17:12:58,144 INFO L130 PetriNetUnfolder]: 95/800 cut-off events. [2022-10-17 17:12:58,144 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-10-17 17:12:58,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 800 events. 95/800 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2683 event pairs, 0 based on Foata normal form. 0/660 useless extension candidates. Maximal degree in co-relation 462. Up to 4 conditions per place. [2022-10-17 17:12:58,259 INFO L118 LiptonReduction]: Number of co-enabled transitions 105672