Trace number 1554853

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
MiniSat 2.1 (Sat-race'08 Edition)UNSAT 17.2844 17.2877

General information on the benchmark

NameAPPLICATIONS/bitverif/
smulo/smulo016.cnf
MD5SUM576249eded8a3c95c0b3aa8dcd51992e
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark12.2751
Satisfiable
(Un)Satisfiability was proved
Number of variables2945
Number of clauses8738
Sum of the clauses size20386
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 25824
Number of clauses of size 32912
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 WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.01	c |  Number of variables:          2945                                         |
0.00/0.01	c |  Number of clauses:            8736                                         |
0.00/0.01	c |  Parse time:                   0.01 s                                       |
0.00/0.03	c |  Simplification time:          0.02 s                                       |
0.00/0.03	c |                                                                             |
0.00/0.03	c ============================[ Search Statistics ]==============================
0.00/0.03	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.03	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.03	c ===============================================================================
0.00/0.03	c |       100 |    1459     6286    17914 |     2304      100     30 |  0.069 % |
0.00/0.04	c |       250 |    1459     6286    17914 |     2535      250     24 |  0.068 % |
0.05/0.07	c |       475 |    1459     6286    17914 |     2788      475     27 |  0.068 % |
0.05/0.08	c |       812 |    1459     6286    17914 |     3067      812     24 |  0.068 % |
0.09/0.12	c |      1318 |    1459     6286    17914 |     3374     1318     26 |  0.068 % |
0.09/0.16	c |      2077 |    1459     6286    17914 |     3712     2077     24 |  0.068 % |
0.19/0.22	c |      3216 |    1459     6286    17914 |     4083     3216     22 |  0.068 % |
0.29/0.31	c |      4924 |    1459     6286    17914 |     4491     2719     15 |  0.068 % |
0.39/0.45	c |      7486 |    1457     6277    17893 |     4940     2839     17 |  0.136 % |
0.69/0.72	c |     11330 |    1457     6277    17893 |     5434     4195     19 |  0.136 % |
1.10/1.17	c |     17096 |    1457     6277    17893 |     5978     4404     18 |  0.136 % |
1.69/1.75	c |     25745 |    1457     6277    17893 |     6576     3896     16 |  0.136 % |
2.59/2.62	c |     38719 |    1457     6277    17893 |     7233     3537     16 |  0.136 % |
3.99/4.01	c |     58180 |    1457     6277    17893 |     7957     4595     16 |  0.136 % |
6.19/6.26	c |     87372 |    1457     6277    17893 |     8752     5507     16 |  0.136 % |
9.59/9.65	c |    131161 |    1456     6272    17882 |     9628     4943     17 |  0.170 % |
14.79/14.87	c |    196845 |    1456     6272    17882 |    10590     7170     18 |  0.170 % |
17.19/17.28	c ===============================================================================
17.19/17.28	c restarts              : 511
17.19/17.28	c conflicts             : 225359         (13045 /sec)
17.19/17.28	c decisions             : 311204         (18014 /sec)
17.19/17.28	c propagations          : 42803784       (2477734 /sec)
17.19/17.28	c conflict literals     : 4442700        (45.64 % deleted)
17.19/17.28	c Memory used           : 19.25 MB
17.19/17.28	c CPU time              : 17.2754 s
17.19/17.28	c 
17.19/17.28	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1554853-1238733357/watcher-1554853-1238733357 -o /tmp/evaluation-result-1554853-1238733357/solver-1554853-1238733357 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1554853-1238733357.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: 0.96 1.00 1.07 3/64 19396
/proc/meminfo: memFree=1751112/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=7616 CPUtime=0
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 224 0 0 0 0 0 0 0 18 0 1 0 1145998089 7798784 208 1992294400 4194304 5092341 548682068832 18446744073709551615 4497650 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 1937 215 63 219 0 1715 0

[startup+0.0551869 s]
/proc/loadavg: 0.96 1.00 1.07 3/64 19396
/proc/meminfo: memFree=1751112/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=8388 CPUtime=0.05
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 533 0 0 0 5 0 0 0 18 0 1 0 1145998089 8589312 448 1992294400 4194304 5092341 548682068832 18446744073709551615 4241912 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 2097 448 100 219 0 1875 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 8388

[startup+0.101191 s]
/proc/loadavg: 0.96 1.00 1.07 3/64 19396
/proc/meminfo: memFree=1751112/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=8388 CPUtime=0.09
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 551 0 0 0 9 0 0 0 18 0 1 0 1145998089 8589312 466 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 2097 466 100 219 0 1875 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8388

[startup+0.301209 s]
/proc/loadavg: 0.96 1.00 1.07 3/64 19396
/proc/meminfo: memFree=1751112/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=8456 CPUtime=0.29
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 686 0 0 0 29 0 0 0 19 0 1 0 1145998089 8658944 481 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 2114 481 101 219 0 1892 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8456

[startup+0.701246 s]
/proc/loadavg: 0.96 1.00 1.07 3/64 19396
/proc/meminfo: memFree=1751112/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=13648 CPUtime=0.69
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 867 0 0 0 69 0 0 0 22 0 1 0 1145998089 13975552 662 1992294400 4194304 5092341 548682068832 18446744073709551615 4241025 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 3412 662 101 219 0 3190 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13648

[startup+1.50132 s]
/proc/loadavg: 0.96 1.00 1.07 2/65 19397
/proc/meminfo: memFree=1748672/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=8536 CPUtime=1.49
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 1075 0 0 0 149 0 0 0 25 0 1 0 1145998089 8740864 629 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 2134 629 101 219 0 1912 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8536

[startup+3.10147 s]
/proc/loadavg: 0.96 1.00 1.07 2/65 19397
/proc/meminfo: memFree=1747712/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=18928 CPUtime=3.09
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 1383 0 0 0 309 0 0 0 25 0 1 0 1145998089 19382272 937 1992294400 4194304 5092341 548682068832 18446744073709551615 4241107 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 4732 937 101 219 0 4510 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 18928

[startup+6.30177 s]
/proc/loadavg: 0.97 1.00 1.07 2/65 19397
/proc/meminfo: memFree=1747456/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=18928 CPUtime=6.29
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 1418 0 0 0 629 0 0 0 25 0 1 0 1145998089 19382272 972 1992294400 4194304 5092341 548682068832 18446744073709551615 4241048 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 4732 972 101 219 0 4510 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 18928

[startup+12.7014 s]
/proc/loadavg: 0.97 1.00 1.07 2/65 19397
/proc/meminfo: memFree=1745408/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=18928 CPUtime=12.69
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 1886 0 0 0 1269 0 0 0 25 0 1 0 1145998089 19382272 1440 1992294400 4194304 5092341 548682068832 18446744073709551615 4240692 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 4732 1440 101 219 0 4510 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 18928

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

[startup+14.3055 s]
/proc/loadavg: 0.97 1.00 1.07 2/65 19397
/proc/meminfo: memFree=1744576/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=19704 CPUtime=14.29
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 2092 0 0 0 1429 0 0 0 25 0 1 0 1145998089 20176896 1646 1992294400 4194304 5092341 548682068832 18446744073709551615 4240611 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 4926 1646 101 219 0 4704 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 19704

[startup+15.9017 s]
/proc/loadavg: 0.97 1.00 1.07 2/65 19397
/proc/meminfo: memFree=1744384/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=19704 CPUtime=15.89
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 2131 0 0 0 1589 0 0 0 25 0 1 0 1145998089 20176896 1685 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 4926 1685 101 219 0 4704 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 19704

[startup+16.7017 s]
/proc/loadavg: 0.97 1.00 1.07 2/65 19397
/proc/meminfo: memFree=1744384/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=19704 CPUtime=16.69
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 2131 0 0 0 1669 0 0 0 25 0 1 0 1145998089 20176896 1685 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 4926 1685 101 219 0 4704 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 19704

[startup+17.1018 s]
/proc/loadavg: 0.97 1.00 1.07 2/65 19397
/proc/meminfo: memFree=1744384/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=19704 CPUtime=17.09
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 2131 0 0 0 1709 0 0 0 25 0 1 0 1145998089 20176896 1685 1992294400 4194304 5092341 548682068832 18446744073709551615 4240611 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 4926 1685 101 219 0 4704 0
Current children cumulated CPU time (s) 17.09
Current children cumulated vsize (KiB) 19704

[startup+17.2018 s]
/proc/loadavg: 0.97 1.00 1.07 2/65 19397
/proc/meminfo: memFree=1744384/2055920 swapFree=4176872/4192956
[pid=19396] ppid=19394 vsize=19704 CPUtime=17.19
/proc/19396/stat : 19396 (minisat) R 19394 19396 19001 0 -1 4194304 2131 0 0 0 1719 0 0 0 25 0 1 0 1145998089 20176896 1685 1992294400 4194304 5092341 548682068832 18446744073709551615 4249245 0 0 4096 3 0 0 0 17 1 0 0
/proc/19396/statm: 4926 1685 101 219 0 4704 0
Current children cumulated CPU time (s) 17.19
Current children cumulated vsize (KiB) 19704

Child status: 20
Real time (s): 17.2877
CPU time (s): 17.2844
CPU user time (s): 17.2754
CPU system time (s): 0.008998
CPU usage (%): 99.9808
Max. virtual memory (cumulated for all children) (KiB): 19704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.2754
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2141
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= 15

runsolver used 0.015997 second user time and 0.045993 second system time

The end

Launcher Data 

Begin job on node48 at 2009-04-03 06:35:57
IDJOB=1554853
IDBENCH=70788
IDSOLVER=546
FILE ID=node48/1554853-1238733357
PBS_JOBID= 9085347
Free space on /tmp= 66548 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/bitverif/smulo/smulo016.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1554853-1238733357/watcher-1554853-1238733357 -o /tmp/evaluation-result-1554853-1238733357/solver-1554853-1238733357 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1554853-1238733357.cnf

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

MD5SUM BENCH= 576249eded8a3c95c0b3aa8dcd51992e
RANDOM SEED=889880579

node48.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		: 3000.236
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:       1751528 kB
Buffers:         47376 kB
Cached:         170920 kB
SwapCached:      10184 kB
Active:          78656 kB
Inactive:       151432 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1751528 kB
SwapTotal:     4192956 kB
SwapFree:      4176872 kB
Dirty:            1036 kB
Writeback:           0 kB
Mapped:          17532 kB
Slab:            60220 kB
Committed_AS:  2902400 kB
PageTables:       1376 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= 66548 MiB
End job on node48 at 2009-04-03 06:36:14