Trace number 3162323

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 0.247961 0.249377

General information on the benchmark

Namerandom/large/
unif-k3-r4.2-v2500-c10500-S722024572-014-UNKNOWN.cnf
MD5SUM875a8b1e044c25599d3c66c1e66d27f4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.247961
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 

0.19/0.24	c 
0.19/0.24	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.19/0.24	c 
0.19/0.24	c http://www.satlib.org/ubcsat
0.19/0.24	c 
0.19/0.24	c ubcsat -h for help
0.19/0.24	c 
0.19/0.24	s SATISFIABLE
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0.19/0.24	v  -1981 -1982 1983 -1984 -1985 1986 1987 1988 1989 -1990
0.19/0.24	v  1991 1992 1993 1994 1995 -1996 1997 1998 -1999 -2000
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0.19/0.24	v  2011 2012 -2013 2014 -2015 2016 -2017 -2018 2019 2020
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0.19/0.24	v  2151 2152 -2153 2154 -2155 -2156 -2157 -2158 2159 2160
0.19/0.24	v  2161 -2162 -2163 -2164 2165 2166 -2167 -2168 -2169 2170
0.19/0.24	v  -2171 -2172 2173 -2174 2175 -2176 -2177 -2178 -2179 -2180
0.19/0.24	v  2181 2182 2183 -2184 2185 2186 -2187 -2188 2189 2190
0.19/0.24	v  2191 -2192 -2193 2194 2195 2196 2197 2198 -2199 2200
0.19/0.24	v  -2201 2202 2203 -2204 2205 -2206 -2207 2208 -2209 -2210
0.19/0.24	v  -2211 -2212 -2213 -2214 2215 2216 -2217 -2218 -2219 2220
0.19/0.24	v  2221 -2222 2223 2224 -2225 -2226 -2227 -2228 2229 -2230
0.19/0.24	v  2231 -2232 2233 -2234 -2235 -2236 -2237 2238 -2239 2240
0.19/0.24	v  2241 -2242 -2243 2244 -2245 2246 -2247 2248 -2249 2250
0.19/0.24	v  -2251 -2252 2253 2254 -2255 -2256 2257 -2258 -2259 -2260
0.19/0.24	v  2261 2262 2263 -2264 -2265 2266 2267 -2268 -2269 -2270
0.19/0.24	v  -2271 2272 -2273 2274 -2275 -2276 2277 2278 2279 -2280
0.19/0.24	v  2281 2282 -2283 2284 2285 -2286 2287 2288 2289 -2290
0.19/0.24	v  -2291 2292 2293 2294 -2295 2296 -2297 2298 -2299 2300
0.19/0.24	v  2301 -2302 -2303 2304 -2305 -2306 2307 2308 -2309 2310
0.19/0.24	v  2311 2312 2313 2314 -2315 2316 2317 -2318 -2319 2320
0.19/0.24	v  -2321 -2322 -2323 -2324 2325 2326 2327 -2328 -2329 -2330
0.19/0.24	v  2331 -2332 2333 2334 2335 2336 -2337 -2338 2339 -2340
0.19/0.24	v  2341 -2342 -2343 -2344 -2345 -2346 2347 2348 -2349 -2350
0.19/0.24	v  -2351 2352 -2353 2354 -2355 -2356 -2357 2358 -2359 -2360
0.19/0.24	v  -2361 2362 -2363 -2364 -2365 -2366 -2367 2368 2369 -2370
0.19/0.24	v  2371 -2372 -2373 2374 2375 -2376 -2377 2378 2379 2380
0.19/0.24	v  2381 -2382 2383 -2384 -2385 -2386 2387 -2388 -2389 -2390
0.19/0.24	v  -2391 -2392 -2393 2394 2395 -2396 -2397 2398 -2399 2400
0.19/0.24	v  2401 2402 2403 -2404 2405 -2406 -2407 2408 -2409 2410
0.19/0.24	v  -2411 -2412 2413 -2414 2415 -2416 -2417 -2418 2419 -2420
0.19/0.24	v  -2421 2422 -2423 -2424 -2425 2426 2427 2428 -2429 -2430
0.19/0.24	v  2431 2432 -2433 -2434 -2435 2436 2437 2438 2439 -2440
0.19/0.24	v  2441 -2442 -2443 2444 -2445 -2446 2447 -2448 -2449 -2450
0.19/0.24	v  -2451 2452 2453 2454 2455 2456 -2457 -2458 -2459 -2460
0.19/0.24	v  2461 2462 2463 2464 2465 2466 -2467 2468 -2469 2470
0.19/0.24	v  -2471 2472 -2473 -2474 -2475 -2476 -2477 2478 -2479 2480
0.19/0.24	v  2481 -2482 -2483 -2484 -2485 -2486 -2487 2488 2489 2490
0.19/0.24	v  2491 -2492 -2493 2494 -2495 -2496 2497 -2498 2499 2500
0.19/0.24	v  0
0.19/0.24	c SearchSteps = 341166
0.19/0.24	c SolveTime = 0.24

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3162323-1301697201/watcher-3162323-1301697201 -o /tmp/evaluation-result-3162323-1301697201/solver-3162323-1301697201 -C 2400 -W 1300 -M 7680 sparrow2011 HOME/instance-3162323-1301697201.cnf 1289439135 

running on 2 cores: 0,2

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 3.99 3.60 3.63 4/189 10862
/proc/meminfo: memFree=19878280/32951124 swapFree=67111528/67111528
[pid=10862] ppid=10860 vsize=12232 CPUtime=0 cores=0,2
/proc/10862/stat : 10862 (sparrow2011) R 10860 10862 9494 0 -1 4202496 389 0 0 0 0 0 0 0 25 0 1 0 262135435 12525568 329 33554432000 4194304 4568220 140736221177936 18446744073709551615 254261616384 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/10862/statm: 3058 329 147 92 0 1442 0

[startup+0.0568111 s]
/proc/loadavg: 3.99 3.60 3.63 4/189 10862
/proc/meminfo: memFree=19878280/32951124 swapFree=67111528/67111528
[pid=10862] ppid=10860 vsize=12228 CPUtime=0.05 cores=0,2
/proc/10862/stat : 10862 (sparrow2011) R 10860 10862 9494 0 -1 4202496 618 0 0 0 5 0 0 0 25 0 1 0 262135435 12521472 557 33554432000 4194304 4568220 140736221177936 18446744073709551615 4239369 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/10862/statm: 3057 557 173 92 0 1441 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 12228

[startup+0.100772 s]
/proc/loadavg: 3.99 3.60 3.63 4/189 10862
/proc/meminfo: memFree=19878280/32951124 swapFree=67111528/67111528
[pid=10862] ppid=10860 vsize=12228 CPUtime=0.09 cores=0,2
/proc/10862/stat : 10862 (sparrow2011) R 10860 10862 9494 0 -1 4202496 618 0 0 0 9 0 0 0 25 0 1 0 262135435 12521472 557 33554432000 4194304 4568220 140736221177936 18446744073709551615 4239569 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/10862/statm: 3057 557 173 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+0.200776 s]
/proc/loadavg: 3.99 3.60 3.63 4/189 10862
/proc/meminfo: memFree=19878280/32951124 swapFree=67111528/67111528
[pid=10862] ppid=10860 vsize=12228 CPUtime=0.19 cores=0,2
/proc/10862/stat : 10862 (sparrow2011) R 10860 10862 9494 0 -1 4202496 618 0 0 0 19 0 0 0 25 0 1 0 262135435 12521472 557 33554432000 4194304 4568220 140736221177936 18446744073709551615 4240176 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/10862/statm: 3057 557 173 92 0 1441 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 12228

Child status: 10
Real time (s): 0.249377
CPU time (s): 0.247961
CPU user time (s): 0.246962
CPU system time (s): 0.000999
CPU usage (%): 99.4321
Max. virtual memory (cumulated for all children) (KiB): 12228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.246962
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 636
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= 2
involuntary context switches= 0

runsolver used 0.000999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node140 at 2011-04-02 00:33:21
IDJOB=3162323
IDBENCH=82554
IDSOLVER=1573
FILE ID=node140/3162323-1301697201
RUNJOBID= node140-1301696961-10570
PBS_JOBID= 12840696
Free space on /tmp= 71344 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/large/unif-k3-r4.2-v2500-c10500-S722024572-014-UNKNOWN.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3162323-1301697201/watcher-3162323-1301697201 -o /tmp/evaluation-result-3162323-1301697201/solver-3162323-1301697201 -C 2400 -W 1300 -M 7680  sparrow2011 HOME/instance-3162323-1301697201.cnf 1289439135

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 875a8b1e044c25599d3c66c1e66d27f4
RANDOM SEED=1289439135

node140.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		: 2666.833
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	: 5333.66
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		: 2666.833
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	: 5226.14
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		: 2666.833
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	: 5332.75
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		: 2666.833
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	: 5332.77
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		: 2666.833
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	: 5332.75
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		: 2666.833
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		: 2666.833
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	: 5332.75
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		: 2666.833
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      19878436 kB
Buffers:        355992 kB
Cached:       12330160 kB
SwapCached:          0 kB
Active:        7557136 kB
Inactive:      5237272 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      19878436 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             540 kB
Writeback:           0 kB
AnonPages:      108380 kB
Mapped:          15992 kB
Slab:           214536 kB
PageTables:       5416 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   304800 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= 71344 MiB
End job on node140 at 2011-04-02 00:33:21