Trace number 3154220

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
sattime 2011-03-02SAT 2.18967 2.19015

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S1864619158-076.SATISFIABLE.cnf
MD5SUM420c3b1966635ea800a6b2af1a449f73
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.004998
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 

2.10/2.18	c 0 clauses are redundant and removed
2.10/2.18	c 0 vars are fixed and 0 clauses are removed after unit propagation
2.10/2.18	c 0 vars are fixed and 0 clauses are removed after lookahead
2.10/2.18	c initial seed is 961676522
2.10/2.18	c try=1 flip j=4827022 walk=4178505 seed 961676539
2.10/2.18	c A solution is found
2.10/2.18	s SATISFIABLE
2.10/2.18	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 
2.10/2.18	v 0 
2.10/2.18	c Done (mycputime is 2 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-3154220-1301681634/watcher-3154220-1301681634 -o /tmp/evaluation-result-3154220-1301681634/solver-3154220-1301681634 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154220-1301681634.cnf 961676522 

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: 3.93 4.00 3.87 4/189 15111
/proc/meminfo: memFree=23056720/32951124 swapFree=67111524/67111528
[pid=15111] ppid=15109 vsize=990404 CPUtime=0 cores=0,2
/proc/15111/stat : 15111 (sattime) R 15109 15111 14588 0 -1 4202496 330 0 0 0 0 0 0 0 25 0 1 0 279761322 1014173696 271 33554432000 4194304 4228548 140734187973136 18446744073709551615 4217396 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/15111/statm: 247601 271 116 9 0 244758 0

[startup+0.092945 s]
/proc/loadavg: 3.93 4.00 3.87 4/189 15111
/proc/meminfo: memFree=23056720/32951124 swapFree=67111524/67111528
[pid=15111] ppid=15109 vsize=990404 CPUtime=0.09 cores=0,2
/proc/15111/stat : 15111 (sattime) R 15109 15111 14588 0 -1 4202496 330 0 0 0 9 0 0 0 25 0 1 0 279761322 1014173696 271 33554432000 4194304 4228548 140734187973136 18446744073709551615 4216841 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/15111/statm: 247601 271 116 9 0 244758 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 990404

[startup+0.100941 s]
/proc/loadavg: 3.93 4.00 3.87 4/189 15111
/proc/meminfo: memFree=23056720/32951124 swapFree=67111524/67111528
[pid=15111] ppid=15109 vsize=990404 CPUtime=0.1 cores=0,2
/proc/15111/stat : 15111 (sattime) R 15109 15111 14588 0 -1 4202496 330 0 0 0 10 0 0 0 25 0 1 0 279761322 1014173696 271 33554432000 4194304 4228548 140734187973136 18446744073709551615 4219006 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/15111/statm: 247601 271 116 9 0 244758 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 990404

[startup+0.300913 s]
/proc/loadavg: 3.93 4.00 3.87 4/189 15111
/proc/meminfo: memFree=23056720/32951124 swapFree=67111524/67111528
[pid=15111] ppid=15109 vsize=990404 CPUtime=0.3 cores=0,2
/proc/15111/stat : 15111 (sattime) R 15109 15111 14588 0 -1 4202496 330 0 0 0 30 0 0 0 25 0 1 0 279761322 1014173696 271 33554432000 4194304 4228548 140734187973136 18446744073709551615 4216954 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/15111/statm: 247601 271 116 9 0 244758 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 990404

[startup+0.700865 s]
/proc/loadavg: 3.93 4.00 3.87 4/189 15111
/proc/meminfo: memFree=23056720/32951124 swapFree=67111524/67111528
[pid=15111] ppid=15109 vsize=990404 CPUtime=0.7 cores=0,2
/proc/15111/stat : 15111 (sattime) R 15109 15111 14588 0 -1 4202496 330 0 0 0 70 0 0 0 25 0 1 0 279761322 1014173696 271 33554432000 4194304 4228548 140734187973136 18446744073709551615 4218970 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/15111/statm: 247601 271 116 9 0 244758 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 990404

[startup+1.50073 s]
/proc/loadavg: 3.93 4.00 3.87 5/190 15112
/proc/meminfo: memFree=23055588/32951124 swapFree=67111524/67111528
[pid=15111] ppid=15109 vsize=990404 CPUtime=1.5 cores=0,2
/proc/15111/stat : 15111 (sattime) R 15109 15111 14588 0 -1 4202496 330 0 0 0 150 0 0 0 25 0 1 0 279761322 1014173696 271 33554432000 4194304 4228548 140734187973136 18446744073709551615 4217291 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/15111/statm: 247601 271 116 9 0 244758 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 990404

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

[startup+1.90066 s]
/proc/loadavg: 3.93 4.00 3.87 5/190 15112
/proc/meminfo: memFree=23055588/32951124 swapFree=67111524/67111528
[pid=15111] ppid=15109 vsize=990404 CPUtime=1.9 cores=0,2
/proc/15111/stat : 15111 (sattime) R 15109 15111 14588 0 -1 4202496 330 0 0 0 190 0 0 0 25 0 1 0 279761322 1014173696 271 33554432000 4194304 4228548 140734187973136 18446744073709551615 4219058 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/15111/statm: 247601 271 116 9 0 244758 0
Current children cumulated CPU time (s) 1.9
Current children cumulated vsize (KiB) 990404

[startup+2.10062 s]
/proc/loadavg: 3.93 4.00 3.87 5/190 15112
/proc/meminfo: memFree=23055216/32951124 swapFree=67111524/67111528
[pid=15111] ppid=15109 vsize=990404 CPUtime=2.1 cores=0,2
/proc/15111/stat : 15111 (sattime) R 15109 15111 14588 0 -1 4202496 330 0 0 0 210 0 0 0 25 0 1 0 279761322 1014173696 271 33554432000 4194304 4228548 140734187973136 18446744073709551615 4217237 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/15111/statm: 247601 271 116 9 0 244758 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 990404

Child status: 10
Real time (s): 2.19015
CPU time (s): 2.18967
CPU user time (s): 2.18967
CPU system time (s): 0
CPU usage (%): 99.978
Max. virtual memory (cumulated for all children) (KiB): 990404

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.18967
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= 334
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= 6

runsolver used 0.003999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node136 at 2011-04-01 20:13:54
IDJOB=3154220
IDBENCH=82727
IDSOLVER=1564
FILE ID=node136/3154220-1301681634
RUNJOBID= node136-1301678136-14606
PBS_JOBID= 12840561
Free space on /tmp= 71348 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S1864619158-076.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154220-1301681634/watcher-3154220-1301681634 -o /tmp/evaluation-result-3154220-1301681634/solver-3154220-1301681634 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154220-1301681634.cnf 961676522

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

MD5SUM BENCH= 420c3b1966635ea800a6b2af1a449f73
RANDOM SEED=961676522

node136.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		: 2666.809
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	: 5333.61
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.76
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		: 2666.809
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		: 2666.809
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	: 5332.83
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		: 2666.809
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		: 2666.809
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      23056876 kB
Buffers:        295528 kB
Cached:        9206924 kB
SwapCached:          4 kB
Active:        4301104 kB
Inactive:      5329168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23056876 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:            7780 kB
Writeback:           0 kB
AnonPages:      127588 kB
Mapped:          15308 kB
Slab:           198892 kB
PageTables:       5744 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3256592 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= 71340 MiB
End job on node136 at 2011-04-01 20:13:56