Trace number 3157057

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
shortsattime2011 2011-03-02SAT 0.072988 0.0736661

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S930506247-025.SATISFIABLE.cnf
MD5SUM7d7bac8ccb8010e4eec020bc5c53d758
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.017996
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1704
Sum of the clauses size5112
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31704
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.01/0.07	c 0 clauses are redundant and removed
0.01/0.07	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.01/0.07	c 0 vars are fixed and 0 clauses are removed after lookahead
0.01/0.07	c initial seed is 1074882151
0.01/0.07	c try=1 flip j=159808 walk=137045 seed 1074882168
0.01/0.07	c A solution is found
0.01/0.07	s SATISFIABLE
0.01/0.07	v 1 2 -3 4 -5 -6 -7 8 -9 -10 -11 12 13 -14 15 16 -17 18 -19 20 21 22 23 -24 -25 26 -27 28 -29 -30 -31 -32 -33 34 35 36 37 38 -39 -40 41 -42 43 -44 -45 46 -47 48 -49 -50 51 52 53 54 -55 -56 -57 -58 -59 60 -61 -62 63 64 65 66 -67 -68 -69 -70 71 -72 -73 74 -75 -76 77 78 -79 -80 -81 82 -83 84 -85 86 87 -88 -89 90 91 -92 -93 94 95 -96 97 -98 99 100 -101 102 -103 104 105 -106 107 108 109 -110 111 112 -113 114 -115 116 117 -118 119 120 121 -122 -123 -124 -125 126 -127 128 -129 130 131 132 133 134 -135 136 137 138 139 140 141 142 -143 -144 145 -146 -147 -148 149 -150 151 152 153 154 -155 156 -157 -158 -159 -160 -161 -162 -163 164 -165 -166 -167 -168 169 170 171 -172 -173 174 -175 -176 -177 -178 -179 -180 181 182 -183 -184 185 186 187 -188 189 190 -191 192 -193 -194 195 196 197 198 199 -200 -201 -202 -203 -204 205 -206 -207 208 -209 210 -211 212 -213 214 -215 -216 217 218 219 -220 -221 222 -223 224 -225 -226 -227 -228 229 -230 -231 232 233 -234 -235 236 -237 -238 239 240 -241 242 243 244 -245 246 247 248 -249 -250 251 -252 253 -254 -255 -256 -257 258 -259 -260 -261 -262 263 264 -265 266 -267 -268 269 -270 -271 -272 -273 -274 -275 -276 -277 -278 279 280 -281 -282 283 284 285 286 -287 -288 -289 -290 -291 292 293 294 295 -296 -297 298 -299 -300 -301 302 303 304 -305 306 307 -308 309 -310 311 312 313 -314 -315 -316 -317 -318 319 -320 -321 -322 -323 324 -325 -326 327 328 329 -330 -331 -332 333 334 -335 -336 337 338 -339 -340 341 342 343 -344 -345 346 347 -348 349 350 -351 352 -353 -354 -355 -356 -357 -358 -359 360 -361 362 -363 364 365 366 -367 -368 369 370 -371 372 373 -374 375 376 377 -378 379 -380 381 382 -383 384 385 386 387 -388 -389 -390 391 392 -393 394 -395 396 397 398 399 -400 
0.01/0.07	v 0 
0.01/0.07	c Done (mycputime is 0 seconds)

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-3157057-1301681443/watcher-3157057-1301681443 -o /tmp/evaluation-result-3157057-1301681443/solver-3157057-1301681443 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157057-1301681443.cnf 1074875364 

running on 2 cores: 5,7

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: 4.01 4.01 3.86 5/189 3239
/proc/meminfo: memFree=21947644/32950928 swapFree=67111528/67111528
[pid=3239] ppid=3237 vsize=1185716 CPUtime=0 cores=5,7
/proc/3239/stat : 3239 (shortsattime201) R 3237 3239 2541 0 -1 4202496 343 0 0 0 0 0 0 0 25 0 1 0 279743092 1214173184 283 33554432000 4194304 4230460 140735663766320 18446744073709551615 4217362 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/3239/statm: 296429 283 117 9 0 293586 0

[startup+0.0163471 s]
/proc/loadavg: 4.01 4.01 3.86 5/189 3239
/proc/meminfo: memFree=21947644/32950928 swapFree=67111528/67111528
[pid=3239] ppid=3237 vsize=1185716 CPUtime=0.01 cores=5,7
/proc/3239/stat : 3239 (shortsattime201) R 3237 3239 2541 0 -1 4202496 343 0 0 0 1 0 0 0 25 0 1 0 279743092 1214173184 283 33554432000 4194304 4230460 140735663766320 18446744073709551615 4221168 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/3239/statm: 296429 283 117 9 0 293586 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1185716

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

[startup+0.0163471 s]
/proc/loadavg: 4.01 4.01 3.86 5/189 3239
/proc/meminfo: memFree=21947644/32950928 swapFree=67111528/67111528
[pid=3239] ppid=3237 vsize=1185716 CPUtime=0.01 cores=5,7
/proc/3239/stat : 3239 (shortsattime201) R 3237 3239 2541 0 -1 4202496 343 0 0 0 1 0 0 0 25 0 1 0 279743092 1214173184 283 33554432000 4194304 4230460 140735663766320 18446744073709551615 4221168 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/3239/statm: 296429 283 117 9 0 293586 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1185716

Child status: 10
Real time (s): 0.0736661
CPU time (s): 0.072988
CPU user time (s): 0.072988
CPU system time (s): 0
CPU usage (%): 99.0795
Max. virtual memory (cumulated for all children) (KiB): 1185716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.072988
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 347
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 0.004999 second system time

The end

Launcher Data 

Begin job on node122 at 2011-04-01 20:10:43
IDJOB=3157057
IDBENCH=82772
IDSOLVER=1566
FILE ID=node122/3157057-1301681443
RUNJOBID= node122-1301678144-2563
PBS_JOBID= 12840575
Free space on /tmp= 71612 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S930506247-025.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157057-1301681443/watcher-3157057-1301681443 -o /tmp/evaluation-result-3157057-1301681443/solver-3157057-1301681443 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157057-1301681443.cnf 1074875364

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

MD5SUM BENCH= 7d7bac8ccb8010e4eec020bc5c53d758
RANDOM SEED=1074875364

node122.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		: 2666.820
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	: 5333.64
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		: 2666.820
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	: 5332.75
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		: 2666.820
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		: 2666.820
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		: 2666.820
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		: 2666.820
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	: 5332.75
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		: 2666.820
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		: 2666.820
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	: 5332.97
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      21947676 kB
Buffers:        334860 kB
Cached:       10320648 kB
SwapCached:          0 kB
Active:        6957748 kB
Inactive:      3787728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      21947676 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           11936 kB
Writeback:           0 kB
AnonPages:       89932 kB
Mapped:          15516 kB
Slab:           193660 kB
PageTables:       5720 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3810296 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= 71604 MiB
End job on node122 at 2011-04-01 20:10:43