Trace number 1724171

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 34.6477 34.6676

General information on the benchmark

Namesimon-s03-fifo8-300.cnf
MD5SUMbc88ff447c824a634465ac9483a47d5c
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark28.2557
Satisfiable
(Un)Satisfiability was proved
Number of variables194762
Number of clauses530713
Sum of the clauses size1200865
Maximum clause length11
Minimum clause length1
Number of clauses of size 14539
Number of clauses of size 2407666
Number of clauses of size 3101726
Number of clauses of size 413487
Number of clauses of size 51199
Number of clauses of size over 52096

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 |                                                                             |
1.59/1.66	c |  Number of variables:        194762                                         |
1.59/1.66	c |  Number of clauses:          503406                                         |
1.59/1.66	c |  Parse time:                   1.57 s                                       |
4.40/4.48	c |  Simplification time:          2.78 s                                       |
4.40/4.48	c |                                                                             |
4.40/4.48	c ============================[ Search Statistics ]==============================
4.40/4.48	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
4.40/4.48	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
4.40/4.48	c ===============================================================================
4.48/4.51	c |       100 |   22146   103231   334364 |    37851       97      5 | 33.953 % |
4.48/4.57	c |       250 |   22042   103231   334364 |    41636      245      5 | 34.006 % |
4.59/4.65	c |       475 |   22025   103231   334364 |    45800      469      6 | 34.015 % |
4.79/4.82	c |       812 |   22025   103231   334364 |    50380      806      6 | 34.015 % |
4.99/5.06	c |      1318 |   22025   103231   334364 |    55418     1312      6 | 34.015 % |
5.50/5.53	c |      2077 |   22025   102210   330724 |    60960     2063      6 | 34.015 % |
5.99/6.02	c |      3216 |   21963   102102   330373 |    67056     3195      6 | 34.047 % |
6.19/6.25	c |      4924 |   21932   101564   328397 |    73761     4867      6 | 34.063 % |
6.60/6.60	c |      7486 |   21799   101564   328397 |    81137     7423      7 | 34.131 % |
7.39/7.44	c |     11330 |   21705   100409   324481 |    89251    11141      7 | 34.179 % |
8.29/8.35	c |     17096 |   21387    98622   318512 |    98176    16554      7 | 34.342 % |
10.19/10.25	c |     25745 |   21387    98348   317584 |   107994    25152      7 | 34.342 % |
12.79/12.83	c |     38719 |   21227    97642   315183 |   118793    37754      8 | 34.425 % |
17.98/18.10	c |     58180 |   20822    94755   305192 |   130673    55559      9 | 34.633 % |
28.59/28.65	c |     87372 |   20533    92699   297646 |   143740    81565     11 | 34.781 % |
34.57/34.65	c ===============================================================================
34.57/34.65	c restarts              : 255
34.57/34.65	c conflicts             : 97733          (2834 /sec)
34.57/34.65	c decisions             : 508896         (14755 /sec)
34.57/34.65	c propagations          : 31054354       (900394 /sec)
34.57/34.65	c conflict literals     : 1191928        (25.40 % deleted)
34.57/34.65	c Memory used           : 57.79 MB
34.57/34.65	c CPU time              : 34.4898 s
34.57/34.65	c 
34.57/34.65	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-1724171-1240693129/watcher-1724171-1240693129 -o /tmp/evaluation-result-1724171-1240693129/solver-1724171-1240693129 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1724171-1240693129.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: 0.66 0.92 0.97 2/65 23026
/proc/meminfo: memFree=1810816/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=8188 CPUtime=0
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 521 0 0 0 0 0 0 0 18 0 1 0 97345771 8384512 505 1992294400 4194304 5092341 548682068848 18446744073709551615 4515648 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 2047 512 62 219 0 1825 0

[startup+0.0115381 s]
/proc/loadavg: 0.66 0.92 0.97 2/65 23026
/proc/meminfo: memFree=1810816/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=9624 CPUtime=0
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 867 0 0 0 0 0 0 0 18 0 1 0 97345771 9854976 851 1992294400 4194304 5092341 548682068848 18446744073709551615 4209789 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 2406 852 62 219 0 2184 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9624

[startup+0.101546 s]
/proc/loadavg: 0.66 0.92 0.97 2/65 23026
/proc/meminfo: memFree=1810816/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=29408 CPUtime=0.09
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 5235 0 0 0 6 3 0 0 18 0 1 0 97345771 30113792 5197 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 7352 5197 63 219 0 7130 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 29408

[startup+0.301569 s]
/proc/loadavg: 0.66 0.92 0.97 2/65 23026
/proc/meminfo: memFree=1810816/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=36760 CPUtime=0.29
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 7470 0 0 0 25 4 0 0 20 0 1 0 97345771 37642240 7330 1992294400 4194304 5092341 548682068848 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 9190 7330 63 219 0 8968 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 36760

[startup+0.701615 s]
/proc/loadavg: 0.66 0.92 0.97 2/65 23026
/proc/meminfo: memFree=1810816/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=45196 CPUtime=0.69
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 10499 0 0 0 64 5 0 0 23 0 1 0 97345771 46280704 9929 1992294400 4194304 5092341 548682068848 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 11299 9929 63 219 0 11077 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 45196

[startup+1.50171 s]
/proc/loadavg: 0.69 0.92 0.97 2/66 23027
/proc/meminfo: memFree=1765688/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=55872 CPUtime=1.49
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 13937 0 0 0 141 8 0 0 25 0 1 0 97345771 57212928 13063 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 13968 13063 63 219 0 13746 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 55872

[startup+3.10189 s]
/proc/loadavg: 0.69 0.92 0.97 2/66 23027
/proc/meminfo: memFree=1755064/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=66212 CPUtime=3.09
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 16362 0 0 0 299 10 0 0 25 0 1 0 97345771 67801088 15032 1992294400 4194304 5092341 548682068848 18446744073709551615 4227385 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 16553 15032 87 219 0 16331 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 66212

[startup+6.30126 s]
/proc/loadavg: 0.69 0.92 0.97 2/66 23027
/proc/meminfo: memFree=1761720/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=56580 CPUtime=6.29
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 19063 0 0 0 616 13 0 0 25 0 1 0 97345771 57937920 12258 1992294400 4194304 5092341 548682068848 18446744073709551615 4251464 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 14145 12258 103 219 0 13923 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 56580

[startup+12.702 s]
/proc/loadavg: 0.73 0.92 0.97 2/66 23027
/proc/meminfo: memFree=1760632/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=56580 CPUtime=12.69
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 19374 0 0 0 1256 13 0 0 25 0 1 0 97345771 57937920 12569 1992294400 4194304 5092341 548682068848 18446744073709551615 4241048 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 14145 12569 103 219 0 13923 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 56580

[startup+25.5015 s]
/proc/loadavg: 0.77 0.92 0.97 2/66 23027
/proc/meminfo: memFree=1758200/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=59176 CPUtime=25.49
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 19970 0 0 0 2535 14 0 0 25 0 1 0 97345771 60596224 13165 1992294400 4194304 5092341 548682068848 18446744073709551615 4250672 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 14794 13165 103 219 0 14572 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 59176

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

[startup+28.7018 s]
/proc/loadavg: 0.79 0.92 0.97 2/66 23027
/proc/meminfo: memFree=1757560/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=59176 CPUtime=28.68
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 20119 0 0 0 2854 14 0 0 25 0 1 0 97345771 60596224 13314 1992294400 4194304 5092341 548682068848 18446744073709551615 4240665 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 14794 13314 103 219 0 14572 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 59176

[startup+31.9052 s]
/proc/loadavg: 0.81 0.93 0.97 2/66 23027
/proc/meminfo: memFree=1756856/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=59176 CPUtime=31.88
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 20267 0 0 0 3174 14 0 0 25 0 1 0 97345771 60596224 13462 1992294400 4194304 5092341 548682068848 18446744073709551615 4241823 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 14794 13462 103 219 0 14572 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 59176

[startup+33.5014 s]
/proc/loadavg: 0.81 0.93 0.97 2/66 23027
/proc/meminfo: memFree=1756664/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=59176 CPUtime=33.47
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 20333 0 0 0 3333 14 0 0 25 0 1 0 97345771 60596224 13528 1992294400 4194304 5092341 548682068848 18446744073709551615 4240672 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 14794 13528 103 219 0 14572 0
Current children cumulated CPU time (s) 33.47
Current children cumulated vsize (KiB) 59176

[startup+34.3015 s]
/proc/loadavg: 0.81 0.93 0.97 2/66 23027
/proc/meminfo: memFree=1756472/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=59176 CPUtime=34.27
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 20368 0 0 0 3413 14 0 0 25 0 1 0 97345771 60596224 13563 1992294400 4194304 5092341 548682068848 18446744073709551615 4249550 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 14794 13563 103 219 0 14572 0
Current children cumulated CPU time (s) 34.27
Current children cumulated vsize (KiB) 59176

[startup+34.5015 s]
/proc/loadavg: 0.81 0.93 0.97 2/66 23027
/proc/meminfo: memFree=1756472/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=59176 CPUtime=34.47
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 20375 0 0 0 3433 14 0 0 25 0 1 0 97345771 60596224 13570 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 14794 13570 103 219 0 14572 0
Current children cumulated CPU time (s) 34.47
Current children cumulated vsize (KiB) 59176

[startup+34.6015 s]
/proc/loadavg: 0.81 0.93 0.97 2/66 23027
/proc/meminfo: memFree=1756472/2055920 swapFree=4192812/4192956
[pid=23026] ppid=23024 vsize=59176 CPUtime=34.57
/proc/23026/stat : 23026 (minisat) R 23024 23026 22927 0 -1 4194304 20376 0 0 0 3443 14 0 0 25 0 1 0 97345771 60596224 13571 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/23026/statm: 14794 13571 103 219 0 14572 0
Current children cumulated CPU time (s) 34.57
Current children cumulated vsize (KiB) 59176

Child status: 20
Real time (s): 34.6676
CPU time (s): 34.6477
CPU user time (s): 34.4898
CPU system time (s): 0.157975
CPU usage (%): 99.9425
Max. virtual memory (cumulated for all children) (KiB): 77524

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 34.4898
system time used= 0.157975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 20387
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= 87

runsolver used 0.045993 second user time and 0.076988 second system time

The end

Launcher Data 

Begin job on node74 at 2009-04-25 22:58:51
IDJOB=1724171
IDBENCH=71758
IDSOLVER=546
FILE ID=node74/1724171-1240693129
PBS_JOBID= 9186744
Free space on /tmp= 103108 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE06/simon-s03-fifo8-300.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1724171-1240693129/watcher-1724171-1240693129 -o /tmp/evaluation-result-1724171-1240693129/solver-1724171-1240693129 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1724171-1240693129.cnf

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

MD5SUM BENCH= bc88ff447c824a634465ac9483a47d5c
RANDOM SEED=1852932030

node74.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		: 3000.233
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		: 3000.233
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:       1811296 kB
Buffers:          9476 kB
Cached:         166712 kB
SwapCached:          0 kB
Active:          73052 kB
Inactive:       117956 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1811296 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           10080 kB
Writeback:           0 kB
Mapped:          23872 kB
Slab:            39412 kB
Committed_AS:   440668 kB
PageTables:       1444 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 103104 MiB
End job on node74 at 2009-04-25 22:59:26