Trace number 3219799

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
sparrow2011 sparrow2011_ubcsat1.2_2011-03-02SAT 0.286955 0.286907

General information on the benchmark

Namerandom/large/
unif-k3-r4.2-v2500-c10500-S1907658523-004-UNKNOWN.cnf
MD5SUMb937b5bc0ec99f47d43da4a3e675d75d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.286955
Satisfiable
(Un)Satisfiability was proved
Number of variables2500
Number of clauses10500
Sum of the clauses size31500
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 310500
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.19/0.28	c 
0.19/0.28	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.19/0.28	c 
0.19/0.28	c http://www.satlib.org/ubcsat
0.19/0.28	c 
0.19/0.28	c ubcsat -h for help
0.19/0.28	c 
0.19/0.28	s SATISFIABLE
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0.19/0.28	v  2151 2152 2153 2154 2155 -2156 2157 2158 2159 2160
0.19/0.28	v  2161 -2162 2163 2164 2165 2166 -2167 2168 2169 2170
0.19/0.28	v  2171 2172 2173 -2174 2175 -2176 -2177 -2178 -2179 2180
0.19/0.28	v  2181 2182 2183 -2184 2185 2186 -2187 -2188 -2189 2190
0.19/0.28	v  -2191 -2192 -2193 2194 2195 2196 2197 2198 2199 2200
0.19/0.28	v  2201 2202 -2203 2204 -2205 2206 -2207 -2208 -2209 -2210
0.19/0.28	v  2211 -2212 2213 2214 -2215 2216 -2217 2218 -2219 -2220
0.19/0.28	v  -2221 -2222 -2223 2224 2225 2226 -2227 -2228 2229 -2230
0.19/0.28	v  -2231 2232 -2233 -2234 -2235 -2236 2237 2238 2239 2240
0.19/0.28	v  2241 -2242 -2243 -2244 -2245 2246 2247 2248 2249 -2250
0.19/0.28	v  -2251 -2252 2253 2254 -2255 -2256 -2257 2258 2259 2260
0.19/0.28	v  -2261 -2262 -2263 2264 -2265 -2266 -2267 -2268 2269 -2270
0.19/0.28	v  -2271 2272 -2273 -2274 2275 2276 2277 -2278 -2279 2280
0.19/0.28	v  -2281 -2282 2283 -2284 2285 -2286 -2287 -2288 -2289 2290
0.19/0.28	v  2291 2292 2293 -2294 -2295 2296 2297 -2298 2299 -2300
0.19/0.28	v  2301 2302 -2303 -2304 -2305 2306 2307 -2308 2309 -2310
0.19/0.28	v  2311 -2312 -2313 2314 2315 -2316 -2317 2318 2319 2320
0.19/0.28	v  -2321 -2322 -2323 -2324 -2325 2326 2327 2328 -2329 -2330
0.19/0.28	v  -2331 -2332 2333 2334 -2335 -2336 -2337 -2338 -2339 2340
0.19/0.28	v  2341 2342 -2343 -2344 2345 -2346 -2347 -2348 -2349 -2350
0.19/0.28	v  2351 2352 -2353 -2354 -2355 -2356 -2357 2358 -2359 -2360
0.19/0.28	v  -2361 -2362 -2363 2364 2365 2366 2367 2368 -2369 -2370
0.19/0.28	v  -2371 -2372 -2373 2374 2375 -2376 2377 -2378 -2379 -2380
0.19/0.28	v  2381 2382 -2383 -2384 2385 -2386 2387 2388 2389 2390
0.19/0.28	v  2391 -2392 -2393 -2394 2395 2396 -2397 -2398 -2399 -2400
0.19/0.28	v  -2401 2402 2403 2404 2405 -2406 2407 -2408 -2409 -2410
0.19/0.28	v  2411 2412 -2413 -2414 -2415 -2416 -2417 -2418 -2419 -2420
0.19/0.28	v  -2421 -2422 -2423 2424 2425 2426 -2427 2428 -2429 -2430
0.19/0.28	v  -2431 -2432 2433 2434 2435 2436 2437 -2438 2439 2440
0.19/0.28	v  2441 2442 -2443 2444 2445 -2446 2447 2448 -2449 -2450
0.19/0.28	v  2451 -2452 -2453 2454 2455 -2456 2457 -2458 2459 -2460
0.19/0.28	v  -2461 2462 -2463 -2464 -2465 2466 -2467 2468 -2469 -2470
0.19/0.28	v  -2471 -2472 2473 2474 -2475 -2476 2477 -2478 -2479 2480
0.19/0.28	v  2481 -2482 -2483 -2484 -2485 -2486 -2487 -2488 -2489 -2490
0.19/0.28	v  -2491 -2492 -2493 -2494 -2495 2496 2497 2498 -2499 -2500
0.19/0.28	v  0
0.19/0.28	c SearchSteps = 440283
0.19/0.28	c SolveTime = 0.28

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3219799-1303245445/watcher-3219799-1303245445 -o /tmp/evaluation-result-3219799-1303245445/solver-3219799-1303245445 -C 5000 -W 5000 -M 15500 sparrow2011 HOME/instance-3219799-1303245445.cnf 1564438646 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.93 1.99 1.99 2/177 9648
/proc/meminfo: memFree=13938284/32951124 swapFree=67111528/67111528
[pid=9648] ppid=9646 vsize=12232 CPUtime=0 cores=0,2,4,6
/proc/9648/stat : 9648 (sparrow2011) R 9646 9648 9299 0 -1 4202496 396 0 0 0 0 0 0 0 25 0 1 0 416960349 12525568 337 33554432000 4194304 4568220 140733893021616 18446744073709551615 4464883 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/9648/statm: 3058 337 147 92 0 1442 0

[startup+0.0540639 s]
/proc/loadavg: 1.93 1.99 1.99 2/177 9648
/proc/meminfo: memFree=13938284/32951124 swapFree=67111528/67111528
[pid=9648] ppid=9646 vsize=12228 CPUtime=0.05 cores=0,2,4,6
/proc/9648/stat : 9648 (sparrow2011) R 9646 9648 9299 0 -1 4202496 616 0 0 0 5 0 0 0 25 0 1 0 416960349 12521472 556 33554432000 4194304 4568220 140733893021616 18446744073709551615 4476948 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/9648/statm: 3057 556 173 92 0 1441 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 12228

[startup+0.101061 s]
/proc/loadavg: 1.93 1.99 1.99 2/177 9648
/proc/meminfo: memFree=13938284/32951124 swapFree=67111528/67111528
[pid=9648] ppid=9646 vsize=12228 CPUtime=0.09 cores=0,2,4,6
/proc/9648/stat : 9648 (sparrow2011) R 9646 9648 9299 0 -1 4202496 616 0 0 0 9 0 0 0 25 0 1 0 416960349 12521472 556 33554432000 4194304 4568220 140733893021616 18446744073709551615 4304879 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/9648/statm: 3057 556 173 92 0 1441 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12228

Solver just ended. Dumping a history of the last processes samples

[startup+0.201051 s]
/proc/loadavg: 1.93 1.99 1.99 2/177 9648
/proc/meminfo: memFree=13938284/32951124 swapFree=67111528/67111528
[pid=9648] ppid=9646 vsize=12228 CPUtime=0.19 cores=0,2,4,6
/proc/9648/stat : 9648 (sparrow2011) R 9646 9648 9299 0 -1 4202496 616 0 0 0 19 0 0 0 25 0 1 0 416960349 12521472 556 33554432000 4194304 4568220 140733893021616 18446744073709551615 4239680 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/9648/statm: 3057 556 173 92 0 1441 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 12228

Child status: 10
Real time (s): 0.286907
CPU time (s): 0.286955
CPU user time (s): 0.284956
CPU system time (s): 0.001999
CPU usage (%): 100.017
Max. virtual memory (cumulated for all children) (KiB): 12228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.284956
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 634
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 3
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.001999 second system time

The end

Launcher Data 

Begin job on node145 at 2011-04-19 22:37:25
IDJOB=3219799
IDBENCH=82650
IDSOLVER=1636
FILE ID=node145/3219799-1303245445
RUNJOBID= node145-1303240443-9317
PBS_JOBID= 13042411
Free space on /tmp= 71588 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/large/unif-k3-r4.2-v2500-c10500-S1907658523-004-UNKNOWN.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3219799-1303245445/watcher-3219799-1303245445 -o /tmp/evaluation-result-3219799-1303245445/solver-3219799-1303245445 -C 5000 -W 5000 -M 15500  sparrow2011 HOME/instance-3219799-1303245445.cnf 1564438646

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= b937b5bc0ec99f47d43da4a3e675d75d
RANDOM SEED=1564438646

node145.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.786
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.57
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.786
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.786
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.786
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.786
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.786
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.786
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.84
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.786
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      13938432 kB
Buffers:        721316 kB
Cached:       17864608 kB
SwapCached:          0 kB
Active:        8631676 kB
Inactive:     10024744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      13938432 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             412 kB
Writeback:           0 kB
AnonPages:       70344 kB
Mapped:          15296 kB
Slab:           293180 kB
PageTables:       4692 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   218608 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71588 MiB
End job on node145 at 2011-04-19 22:37:25