Trace number 1519217

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
VARSAT-random 2009-03-22SAT 1.12283 1.12337

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S1826927554-087.cnf
MD5SUM0b7c656709bcc63999a07f86368ab57c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  360                                                  |
0.00/0.00	c |  Number of clauses:    1530                                                 |
0.00/0.00	c |  Parsing time:         0.00         s                                       |
0.00/0.00	c |  Timeout:              43200 s
0.00/0.00	c |  Random Seed:          1361884111.000000
0.00/0.00	c |  Heuristic:            EMSP-G, threshold 0.750                              |
0.00/0.00	c |  Branching Rule:       default (solution-guided)                            |
0.00/0.00	c |  Learned clauses in surveys?  Using NO learned clauses.                     |
0.00/0.00	c |                                                                             |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |     352     1516     4593 |      505        0    nan |  0.000 % |
0.00/0.01	c |       100 |     352     1516     4593 |      555      100     18 |  0.001 % |
0.00/0.03	c |       250 |     352     1516     4593 |      611      250     17 |  0.001 % |
0.00/0.04	c |       476 |     352     1516     4593 |      672      476     17 |  0.001 % |
0.00/0.06	c |       813 |     352     1516     4593 |      739      461     14 |  0.001 % |
0.00/0.09	c |      1319 |     352     1516     4593 |      813      575     16 |  0.001 % |
0.10/0.12	c |      2078 |     352     1516     4593 |      895      476     14 |  0.001 % |
0.10/0.17	c |      3217 |     352     1516     4593 |      984      681     16 |  0.001 % |
0.20/0.24	c |      4925 |     352     1516     4593 |     1083      858     16 |  0.001 % |
0.30/0.34	c |      7488 |     352     1516     4593 |     1191      629     14 |  0.001 % |
0.40/0.49	c |     11334 |     352     1516     4593 |     1310      794     15 |  0.001 % |
0.70/0.71	c |     17100 |     352     1516     4593 |     1441     1216     17 |  0.001 % |
1.00/1.06	c |     25749 |     352     1516     4593 |     1585     1007     15 |  0.001 % |
1.10/1.12	c ===============================================================================
1.10/1.12	c surveys--CPU time (sec)   : 0.1330         (11.84 % of total)
1.10/1.12	c surveys--attempted        : 65             (489 /sec)
1.10/1.12	c surveys--converged        : 65             (100.00 % successful)
1.10/1.12	c restarts              : 13
1.10/1.12	c conflicts             : 27092          (27370 /sec)
1.10/1.12	c decisions             : 32873          (1.80 % random) (33210 /sec)
1.10/1.12	c propagations          : 1551297        (1567209 /sec)
1.10/1.12	c conflict literals     : 519717         (17.52 % deleted)
1.10/1.12	c Memory used           : 2.75 MB
1.10/1.12	c Total CPU time (sec)      : 1.1228      
1.10/1.12	c 
1.10/1.12	s SATISFIABLE
1.10/1.12	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 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1519217-1238309073/watcher-1519217-1238309073 -o /tmp/evaluation-result-1519217-1238309073/solver-1519217-1238309073 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/varsat-random_static -seed=1361884111 HOME/instance-1519217-1238309073.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.98 0.96 0.98 3/64 7788
/proc/meminfo: memFree=788400/2055920 swapFree=4181692/4192956
[pid=7788] ppid=7786 vsize=2412 CPUtime=0
/proc/7788/stat : 7788 (varsat-random_s) R 7786 7788 7354 0 -1 4194304 218 0 0 0 0 0 0 0 18 0 1 0 275108683 2469888 203 1992294400 4194304 5102416 548682068800 18446744073709551615 4272948 0 0 4096 3 0 0 0 17 1 0 0
/proc/7788/statm: 603 203 98 221 0 379 0

[startup+0.00953198 s]
/proc/loadavg: 0.98 0.96 0.98 3/64 7788
/proc/meminfo: memFree=788400/2055920 swapFree=4181692/4192956
[pid=7788] ppid=7786 vsize=2412 CPUtime=0
/proc/7788/stat : 7788 (varsat-random_s) R 7786 7788 7354 0 -1 4194304 222 0 0 0 0 0 0 0 18 0 1 0 275108683 2469888 207 1992294400 4194304 5102416 548682068800 18446744073709551615 4221311 0 0 4096 3 0 0 0 17 1 0 0
/proc/7788/statm: 603 207 102 221 0 379 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2412

[startup+0.102542 s]
/proc/loadavg: 0.98 0.96 0.98 3/64 7788
/proc/meminfo: memFree=788400/2055920 swapFree=4181692/4192956
[pid=7788] ppid=7786 vsize=2412 CPUtime=0.1
/proc/7788/stat : 7788 (varsat-random_s) R 7786 7788 7354 0 -1 4194304 235 0 0 0 10 0 0 0 18 0 1 0 275108683 2469888 220 1992294400 4194304 5102416 548682068800 18446744073709551615 4221458 0 0 4096 3 0 0 0 17 1 0 0
/proc/7788/statm: 603 220 111 221 0 379 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2412

[startup+0.302563 s]
/proc/loadavg: 0.98 0.96 0.98 3/64 7788
/proc/meminfo: memFree=788400/2055920 swapFree=4181692/4192956
[pid=7788] ppid=7786 vsize=2544 CPUtime=0.3
/proc/7788/stat : 7788 (varsat-random_s) R 7786 7788 7354 0 -1 4194304 262 0 0 0 30 0 0 0 19 0 1 0 275108683 2605056 247 1992294400 4194304 5102416 548682068800 18446744073709551615 4253879 0 0 4096 3 0 0 0 17 1 0 0
/proc/7788/statm: 636 247 111 221 0 412 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2544

[startup+0.701608 s]
/proc/loadavg: 0.98 0.96 0.98 3/64 7788
/proc/meminfo: memFree=788400/2055920 swapFree=4181692/4192956
[pid=7788] ppid=7786 vsize=2676 CPUtime=0.7
/proc/7788/stat : 7788 (varsat-random_s) R 7786 7788 7354 0 -1 4194304 291 0 0 0 70 0 0 0 23 0 1 0 275108683 2740224 276 1992294400 4194304 5102416 548682068800 18446744073709551615 4249634 0 0 4096 3 0 0 0 17 1 0 0
/proc/7788/statm: 669 276 111 221 0 445 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 2676

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

[startup+1.10565 s]
/proc/loadavg: 0.98 0.96 0.98 2/65 7789
/proc/meminfo: memFree=787624/2055920 swapFree=4181692/4192956
[pid=7788] ppid=7786 vsize=2808 CPUtime=1.1
/proc/7788/stat : 7788 (varsat-random_s) R 7786 7788 7354 0 -1 4194304 319 0 0 0 110 0 0 0 25 0 1 0 275108683 2875392 304 1992294400 4194304 5102416 548682068800 18446744073709551615 4249746 0 0 4096 3 0 0 0 17 1 0 0
/proc/7788/statm: 702 304 111 221 0 478 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 2808

Child status: 10
Real time (s): 1.12337
CPU time (s): 1.12283
CPU user time (s): 1.12283
CPU system time (s): 0
CPU usage (%): 99.9521
Max. virtual memory (cumulated for all children) (KiB): 2808

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.12283
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= 325
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= 2

runsolver used 0.003999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node42 at 2009-03-29 08:44:33
IDJOB=1519217
IDBENCH=70744
IDSOLVER=539
FILE ID=node42/1519217-1238309073
PBS_JOBID= 9061049
Free space on /tmp= 66248 MiB

SOLVER NAME= VARSAT-random 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S1826927554-087.cnf
COMMAND LINE= HOME/varsat-random_static -seed=RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519217-1238309073/watcher-1519217-1238309073 -o /tmp/evaluation-result-1519217-1238309073/solver-1519217-1238309073 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/varsat-random_static -seed=1361884111 HOME/instance-1519217-1238309073.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 0b7c656709bcc63999a07f86368ab57c
RANDOM SEED=1361884111

node42.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.211
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.211
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        788816 kB
Buffers:        103508 kB
Cached:        1060296 kB
SwapCached:       5184 kB
Active:         202496 kB
Inactive:       969832 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        788816 kB
SwapTotal:     4192956 kB
SwapFree:      4181692 kB
Dirty:            1044 kB
Writeback:           0 kB
Mapped:          14288 kB
Slab:            80764 kB
Committed_AS:   828684 kB
PageTables:       1388 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66248 MiB
End job on node42 at 2009-03-29 08:44:34