Trace number 3426751

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
sattime2011 2011-03-02SAT 0.071989 0.0723131

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S823305148-084.SATISFIABLE.cnf
MD5SUMbc5d8e174b258480cce7431b84990bdd
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008997
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 

0.02/0.07	c 0 clauses are redundant and removed
0.02/0.07	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.02/0.07	c 0 vars are fixed and 0 clauses are removed after lookahead
0.02/0.07	c initial seed is 487644501
0.02/0.07	c try=1 flip j=156427 walk=133089 seed 487644518
0.02/0.07	c A solution is found
0.02/0.07	s SATISFIABLE
0.02/0.07	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 
0.02/0.07	v 0 
0.02/0.07	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3426751-1306769132/watcher-3426751-1306769132 -o /tmp/evaluation-result-3426751-1306769132/solver-3426751-1306769132 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426751-1306769132.cnf 487641044 

running on 4 cores: 1,3,5,7

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): 5100 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: 2.14 2.06 2.01 2/481 20967
/proc/meminfo: memFree=4643216/32950928 swapFree=47704892/67111528
[pid=20967] ppid=20965 vsize=1185716 CPUtime=0.01 cores=1,3,5,7
/proc/20967/stat : 20967 (sattime2011) R 20965 20967 20411 0 -1 4202496 339 0 0 0 1 0 0 0 25 0 1 0 788512844 1214173184 283 33554432000 4194304 4230460 140733785012416 18446744073709551615 4218064 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/20967/statm: 296429 283 117 9 0 293586 0

[startup+0.0247921 s]
/proc/loadavg: 2.14 2.06 2.01 2/481 20967
/proc/meminfo: memFree=4643216/32950928 swapFree=47704892/67111528
[pid=20967] ppid=20965 vsize=1185716 CPUtime=0.02 cores=1,3,5,7
/proc/20967/stat : 20967 (sattime2011) R 20965 20967 20411 0 -1 4202496 339 0 0 0 2 0 0 0 25 0 1 0 788512844 1214173184 283 33554432000 4194304 4230460 140733785012416 18446744073709551615 4220329 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/20967/statm: 296429 283 117 9 0 293586 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1185716

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

[startup+0.0247921 s]
/proc/loadavg: 2.14 2.06 2.01 2/481 20967
/proc/meminfo: memFree=4643216/32950928 swapFree=47704892/67111528
[pid=20967] ppid=20965 vsize=1185716 CPUtime=0.02 cores=1,3,5,7
/proc/20967/stat : 20967 (sattime2011) R 20965 20967 20411 0 -1 4202496 339 0 0 0 2 0 0 0 25 0 1 0 788512844 1214173184 283 33554432000 4194304 4230460 140733785012416 18446744073709551615 4220329 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/20967/statm: 296429 283 117 9 0 293586 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1185716

Child status: 10
Real time (s): 0.0723131
CPU time (s): 0.071989
CPU user time (s): 0.071989
CPU system time (s): 0
CPU usage (%): 99.5518
Max. virtual memory (cumulated for all children) (KiB): 1185716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.071989
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= 343
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= 1

runsolver used 0.009998 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node127 at 2011-05-30 17:25:32
IDJOB=3426751
IDBENCH=82723
IDSOLVER=1924
FILE ID=node127/3426751-1306769132
RUNJOBID= node127-1306761770-20430
PBS_JOBID= 13474997
Free space on /tmp= 59752 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S823305148-084.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426751-1306769132/watcher-3426751-1306769132 -o /tmp/evaluation-result-3426751-1306769132/solver-3426751-1306769132 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426751-1306769132.cnf 487641044

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

MD5SUM BENCH= bc5d8e174b258480cce7431b84990bdd
RANDOM SEED=487641044

node127.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		: 2666.823
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		: 2666.823
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	: 5332.83
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		: 2666.823
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		: 2666.823
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	: 5332.86
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		: 2666.823
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		: 2666.823
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		: 2666.823
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	: 5332.60
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		: 2666.823
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:       4643496 kB
Buffers:        299008 kB
Cached:       15284244 kB
SwapCached:      21304 kB
Active:       13253908 kB
Inactive:     14402312 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       4643496 kB
SwapTotal:    67111528 kB
SwapFree:     47704892 kB
Dirty:            7772 kB
Writeback:           0 kB
AnonPages:    12058704 kB
Mapped:          26580 kB
Slab:           488112 kB
PageTables:      94932 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 120935388 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= 59744 MiB
End job on node127 at 2011-05-30 17:25:32