Trace number 310621

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, and are wall clock time (not CPU 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
minimarch 2007-02-08UNSAT 12.2301 12.2362

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1893175053-01-UNSAT.cnf
MD5SUMda575672f9caad385bd5edff99ee5f4d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.42378
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	This is MiniMarch, a modified version of MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  630                                                  |
0.00/0.00	|  Number of clauses:    2280                                                 |
0.00/0.00	|  Parsing time:         0.01         s                                       |
0.00/0.01	============================[ Search Statistics ]==============================
0.00/0.01	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.01	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.01	===============================================================================
0.00/0.01	|         0 |     581     2213     6623 |      737        0    nan |  0.000 % |
0.00/0.01	|       100 |     581     2213     6623 |      811      100     14 |  0.002 % |
0.00/0.02	|       251 |     581     2213     6623 |      892      251     13 |  0.001 % |
0.00/0.03	|       476 |     581     2213     6623 |      981      476     13 |  0.001 % |
0.00/0.04	|       813 |     581     2213     6623 |     1080      813     14 |  0.001 % |
0.00/0.07	|      1319 |     581     2213     6623 |     1188      746     13 |  0.001 % |
0.10/0.11	|      2078 |     581     2213     6623 |     1306      887     13 |  0.001 % |
0.10/0.16	|      3217 |     581     2213     6623 |     1437     1352     14 |  0.000 % |
0.20/0.26	|      4926 |     581     2213     6623 |     1581      852     12 |  0.001 % |
0.30/0.40	|      7488 |     581     2213     6623 |     1739      961     14 |  0.001 % |
0.51/0.61	|     11332 |     581     2213     6623 |     1913     1255     11 |  0.002 % |
0.92/0.94	|     17098 |     581     2213     6623 |     2104     1182     10 |  0.001 % |
1.43/1.45	|     25747 |     581     2213     6623 |     2315     1250     13 |  0.001 % |
2.25/2.25	|     38721 |     581     2213     6623 |     2546     1264     12 |  0.002 % |
3.48/3.50	|     58183 |     581     2213     6623 |     2801     1382     10 |  0.000 % |
5.32/5.39	|     87375 |     581     2213     6623 |     3081     2167     13 |  0.001 % |
8.19/8.27	|    131164 |     581     2213     6623 |     3389     2275     11 |  0.003 % |
12.18/12.23	===============================================================================
12.18/12.23	lookaheads            : 201359
12.18/12.23	variable balance      : 0.00
12.18/12.23	restarts              : 17
12.18/12.23	conflicts             : 189222         (15473 /sec)
12.18/12.23	decisions             : 201359         (1.81 % random) (16466 /sec)
12.18/12.23	decision = positive   : 95437
12.18/12.23	decision = negative   : 105922
12.18/12.23	propagations          : 17795888       (1455204 /sec)
12.18/12.23	conflict literals     : 2592569        (36.10 % deleted)
12.18/12.23	Memory used           : 2.45 MB
12.18/12.23	CPU time              : 12.2291 s
12.18/12.23	
12.18/12.23	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node18/watcher-310621-1172560442 -o ROOT/results/node18/solver-310621-1172560442 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310621-1172560442/minimarch /tmp/evaluation/310621-1172560442/instance-310621-1172560442.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 0.98 0.99 3/77 20799
/proc/meminfo: memFree=1667128/2055920 swapFree=4192812/4192956
[pid=20799] ppid=20797 vsize=1868 CPUtime=0
/proc/20799/stat : 20799 (minimarch) R 20797 20799 20065 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 275998729 1912832 127 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134522960 0 0 4096 3 0 0 0 17 1 0 0
/proc/20799/statm: 467 127 51 132 0 332 0

[startup+0.106754 s]
/proc/loadavg: 0.98 0.98 0.99 3/77 20799
/proc/meminfo: memFree=1667128/2055920 swapFree=4192812/4192956
[pid=20799] ppid=20797 vsize=1976 CPUtime=0.1
/proc/20799/stat : 20799 (minimarch) R 20797 20799 20065 0 -1 4194304 174 0 0 0 10 0 0 0 18 0 1 0 275998729 2023424 158 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551700 0 0 4096 3 0 0 0 17 1 0 0
/proc/20799/statm: 494 158 66 132 0 359 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1976

[startup+0.514793 s]
/proc/loadavg: 0.98 0.98 0.99 3/77 20799
/proc/meminfo: memFree=1667128/2055920 swapFree=4192812/4192956
[pid=20799] ppid=20797 vsize=2108 CPUtime=0.51
/proc/20799/stat : 20799 (minimarch) R 20797 20799 20065 0 -1 4194304 198 0 0 0 51 0 0 0 22 0 1 0 275998729 2158592 182 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551677 0 0 4096 3 0 0 0 17 1 0 0
/proc/20799/statm: 527 182 66 132 0 392 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2108

[startup+1.33487 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 20800
/proc/meminfo: memFree=1666608/2055920 swapFree=4192812/4192956
[pid=20799] ppid=20797 vsize=2108 CPUtime=1.33
/proc/20799/stat : 20799 (minimarch) R 20797 20799 20065 0 -1 4194304 221 0 0 0 133 0 0 0 25 0 1 0 275998729 2158592 205 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551279 0 0 4096 3 0 0 0 17 1 0 0
/proc/20799/statm: 527 205 66 132 0 392 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2108

[startup+2.97103 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 20800
/proc/meminfo: memFree=1666352/2055920 swapFree=4192812/4192956
[pid=20799] ppid=20797 vsize=2240 CPUtime=2.96
/proc/20799/stat : 20799 (minimarch) R 20797 20799 20065 0 -1 4194304 247 0 0 0 296 0 0 0 25 0 1 0 275998729 2293760 231 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/20799/statm: 560 231 66 132 0 425 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 2240

[startup+6.24735 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 20800
/proc/meminfo: memFree=1666096/2055920 swapFree=4192812/4192956
[pid=20799] ppid=20797 vsize=2372 CPUtime=6.24
/proc/20799/stat : 20799 (minimarch) R 20797 20799 20065 0 -1 4194304 280 0 0 0 624 0 0 0 25 0 1 0 275998729 2428928 264 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134558155 0 0 4096 3 0 0 0 17 1 0 0
/proc/20799/statm: 593 264 66 132 0 458 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 2372

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

[startup+6.55438 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 20800
/proc/meminfo: memFree=1666096/2055920 swapFree=4192812/4192956
[pid=20799] ppid=20797 vsize=2372 CPUtime=6.55
/proc/20799/stat : 20799 (minimarch) R 20797 20799 20065 0 -1 4194304 281 0 0 0 655 0 0 0 25 0 1 0 275998729 2428928 265 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134557579 0 0 4096 3 0 0 0 17 1 0 0
/proc/20799/statm: 593 265 66 132 0 458 0
Current children cumulated CPU time (s) 6.55
Current children cumulated vsize (KiB) 2372

[startup+9.8357 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 20800
/proc/meminfo: memFree=1666032/2055920 swapFree=4192812/4192956
[pid=20799] ppid=20797 vsize=2504 CPUtime=9.83
/proc/20799/stat : 20799 (minimarch) R 20797 20799 20065 0 -1 4194304 305 0 0 0 983 0 0 0 25 0 1 0 275998729 2564096 289 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134557716 0 0 4096 3 0 0 0 17 1 0 0
/proc/20799/statm: 626 289 66 132 0 491 0
Current children cumulated CPU time (s) 9.83
Current children cumulated vsize (KiB) 2504

[startup+11.4759 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 20800
/proc/meminfo: memFree=1665904/2055920 swapFree=4192812/4192956
[pid=20799] ppid=20797 vsize=2504 CPUtime=11.47
/proc/20799/stat : 20799 (minimarch) R 20797 20799 20065 0 -1 4194304 309 0 0 0 1147 0 0 0 25 0 1 0 275998729 2564096 293 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551262 0 0 4096 3 0 0 0 17 1 0 0
/proc/20799/statm: 626 293 66 132 0 491 0
Current children cumulated CPU time (s) 11.47
Current children cumulated vsize (KiB) 2504

[startup+11.8839 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 20800
/proc/meminfo: memFree=1665904/2055920 swapFree=4192812/4192956
[pid=20799] ppid=20797 vsize=2504 CPUtime=11.87
/proc/20799/stat : 20799 (minimarch) R 20797 20799 20065 0 -1 4194304 310 0 0 0 1187 0 0 0 25 0 1 0 275998729 2564096 294 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551669 0 0 4096 3 0 0 0 17 1 0 0
/proc/20799/statm: 626 294 66 132 0 491 0
Current children cumulated CPU time (s) 11.87
Current children cumulated vsize (KiB) 2504

[startup+12.0879 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 20800
/proc/meminfo: memFree=1665904/2055920 swapFree=4192812/4192956
[pid=20799] ppid=20797 vsize=2504 CPUtime=12.08
/proc/20799/stat : 20799 (minimarch) R 20797 20799 20065 0 -1 4194304 311 0 0 0 1208 0 0 0 25 0 1 0 275998729 2564096 295 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551269 0 0 4096 3 0 0 0 17 1 0 0
/proc/20799/statm: 626 295 66 132 0 491 0
Current children cumulated CPU time (s) 12.08
Current children cumulated vsize (KiB) 2504

[startup+12.1899 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 20800
/proc/meminfo: memFree=1665904/2055920 swapFree=4192812/4192956
[pid=20799] ppid=20797 vsize=2504 CPUtime=12.18
/proc/20799/stat : 20799 (minimarch) R 20797 20799 20065 0 -1 4194304 311 0 0 0 1218 0 0 0 25 0 1 0 275998729 2564096 295 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134557142 0 0 4096 3 0 0 0 17 1 0 0
/proc/20799/statm: 626 295 66 132 0 491 0
Current children cumulated CPU time (s) 12.18
Current children cumulated vsize (KiB) 2504

Child status: 20
Real time (s): 12.2362
CPU time (s): 12.2301
CPU user time (s): 12.2291
CPU system time (s): 0.000999
CPU usage (%): 99.9502
Max. virtual memory (cumulated for all children) (KiB): 2504

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.2291
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= 317
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= 8
involuntary context switches= 246

runsolver used 0.021996 second user time and 0.028995 second system time

The end

Launcher Data (download as text)

Begin job on node18 on Tue Feb 27 07:14:02 UTC 2007

IDJOB= 310621
IDBENCH= 20292
IDSOLVER= 110
FILE ID= node18/310621-1172560442

PBS_JOBID= 3971663

Free space on /tmp= 66555 MiB

SOLVER NAME= minimarch 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1893175053-01-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310621-1172560442/minimarch /tmp/evaluation/310621-1172560442/instance-310621-1172560442.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-310621-1172560442 -o ROOT/results/node18/solver-310621-1172560442 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310621-1172560442/minimarch /tmp/evaluation/310621-1172560442/instance-310621-1172560442.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  da575672f9caad385bd5edff99ee5f4d

RANDOM SEED= 591743817

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node18.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.236
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		: 3000.236
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:       1667600 kB
Buffers:         47828 kB
Cached:         212748 kB
SwapCached:          0 kB
Active:         239204 kB
Inactive:        81144 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1667600 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2376 kB
Writeback:           0 kB
Mapped:          78732 kB
Slab:            53680 kB
Committed_AS:   956164 kB
PageTables:       1668 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= 66555 MiB

End job on node18 on Tue Feb 27 07:14:14 UTC 2007