Trace number 1563485

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 79.166 79.2309

General information on the benchmark

NameAPPLICATIONS/c32sat/
post-c32s-col400-16.cnf
MD5SUMa8766c9a72f73eaac2d0ddc5a182692e
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark66.3399
Satisfiable
(Un)Satisfiability was proved
Number of variables286329
Number of clauses839692
Sum of the clauses size1959280
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 2559794
Number of clauses of size 3279897
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 |                                                                             |
0.89/0.94	c |  Number of variables:        286329                                         |
0.89/0.94	c |  Number of clauses:          837681                                         |
0.89/0.94	c |  Parse time:                   0.83 s                                       |
2.59/4.78	c |  Simplification time:          3.77 s                                       |
2.59/4.78	c |                                                                             |
2.59/4.78	c ============================[ Search Statistics ]==============================
2.59/4.78	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
2.59/4.78	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
2.59/4.78	c ===============================================================================
2.59/4.79	c |       100 |   40836   166136   499607 |    60916      100     13 |  8.243 % |
2.59/4.81	c |       250 |   40836   166136   499607 |    67008      250     12 |  8.243 % |
2.59/4.86	c |       475 |   40836   166136   499607 |    73709      475     14 |  8.243 % |
2.59/5.26	c |       812 |   40836   166136   499607 |    81079      812     14 |  8.243 % |
2.59/5.85	c |      1318 |   40836   166136   499607 |    89187     1318     16 |  8.243 % |
6.97/7.07	c |      2077 |   40836   166136   499607 |    98106     2077     15 |  8.243 % |
8.66/8.77	c |      3216 |   40836   166136   499607 |   107917     3216     14 |  8.243 % |
11.16/11.29	c |      4924 |   40836   166136   499607 |   118709     4924     15 |  8.243 % |
14.96/15.07	c |      7486 |   40836   166136   499607 |   130579     7486     14 |  8.243 % |
20.46/20.53	c |     11330 |   40836   166136   499607 |   143637    11330     14 |  8.243 % |
27.94/28.05	c |     17096 |   40836   166136   499607 |   158001    17096     15 |  8.243 % |
39.84/39.99	c |     25745 |   40836   166136   499607 |   173801    25745     15 |  8.243 % |
57.23/57.36	c |     38719 |   40818   166010   499208 |   191182    32410     15 |  8.249 % |
79.13/79.21	c ===============================================================================
79.13/79.21	c restarts              : 165
79.13/79.21	c conflicts             : 53966          (683 /sec)
79.13/79.21	c decisions             : 66005          (836 /sec)
79.13/79.21	c propagations          : 143659943      (1819240 /sec)
79.13/79.21	c conflict literals     : 784832         (66.82 % deleted)
79.13/79.21	c Memory used           : 86.14 MB
79.13/79.21	c CPU time              : 78.967 s
79.13/79.21	c 
79.13/79.21	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-1563485-1238786638/watcher-1563485-1238786638 -o /tmp/evaluation-result-1563485-1238786638/solver-1563485-1238786638 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1563485-1238786638.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: 1.00 1.10 1.10 3/64 647
/proc/meminfo: memFree=1678744/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=8188 CPUtime=0
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 520 0 0 0 0 0 0 0 18 0 1 0 1151329609 8384512 504 1992294400 4194304 5092341 548682068832 18446744073709551615 4515648 0 0 4096 3 0 0 0 17 1 0 0
/proc/647/statm: 2047 512 62 219 0 1825 0

[startup+0.036224 s]
/proc/loadavg: 1.00 1.10 1.10 3/64 647
/proc/meminfo: memFree=1678744/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=10796 CPUtime=0.03
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 1323 0 0 0 3 0 0 0 18 0 1 0 1151329609 11055104 1286 1992294400 4194304 5092341 548682068832 18446744073709551615 4209789 0 0 4096 3 0 0 0 17 1 0 0
/proc/647/statm: 2699 1287 63 219 0 2477 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 10796

[startup+0.10123 s]
/proc/loadavg: 1.00 1.10 1.10 3/64 647
/proc/meminfo: memFree=1678744/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=16380 CPUtime=0.09
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 3083 0 0 0 8 1 0 0 18 0 1 0 1151329609 16773120 2845 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/647/statm: 4095 2846 63 219 0 3873 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16380

[startup+0.301254 s]
/proc/loadavg: 1.00 1.10 1.10 3/64 647
/proc/meminfo: memFree=1678744/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=33256 CPUtime=0.29
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 8171 0 0 0 26 3 0 0 19 0 1 0 1151329609 34054144 7533 1992294400 4194304 5092341 548682068832 18446744073709551615 4245928 0 0 4096 3 0 0 0 17 1 0 0
/proc/647/statm: 8314 7533 63 219 0 8092 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 33256

[startup+0.7013 s]
/proc/loadavg: 1.00 1.10 1.10 3/64 647
/proc/meminfo: memFree=1678744/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=72944 CPUtime=0.69
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 17988 0 0 0 60 9 0 0 22 0 1 0 1151329609 74694656 16480 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/647/statm: 18236 16480 63 219 0 18014 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 72944

[startup+1.50427 s]
/proc/loadavg: 1.00 1.09 1.09 2/65 648
/proc/meminfo: memFree=1594256/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=98368 CPUtime=1.5
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 24268 0 0 0 139 11 0 0 25 0 1 0 1151329609 100728832 22082 1992294400 4194304 5092341 548682068832 18446744073709551615 4492481 0 0 4096 3 0 0 0 17 1 0 0
/proc/647/statm: 24592 22188 87 219 0 24370 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 98368

[startup+6.74401 s]
/proc/loadavg: 1.00 1.09 1.09 2/65 648
/proc/meminfo: memFree=1574480/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=85612 CPUtime=6.71
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 31041 0 0 0 655 16 0 0 25 0 1 0 1151329609 87666688 19447 1992294400 4194304 5092341 548682068832 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/647/statm: 21403 19447 100 219 0 21181 0
Current children cumulated CPU time (s) 6.71
Current children cumulated vsize (KiB) 85612

[startup+6.80121 s]
/proc/loadavg: 1.00 1.09 1.09 2/65 648
/proc/meminfo: memFree=1574480/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=85612 CPUtime=6.77
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 31042 0 0 0 661 16 0 0 25 0 1 0 1151329609 87666688 19448 1992294400 4194304 5092341 548682068832 18446744073709551615 4240620 0 0 4096 3 0 0 0 17 1 0 0
/proc/647/statm: 21403 19448 100 219 0 21181 0
Current children cumulated CPU time (s) 6.77
Current children cumulated vsize (KiB) 85612

[startup+12.7019 s]
/proc/loadavg: 1.29 1.15 1.11 2/65 648
/proc/meminfo: memFree=1600784/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=85612 CPUtime=12.66
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 31106 0 0 0 1250 16 0 0 25 0 1 0 1151329609 87666688 19512 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 0 0 0
/proc/647/statm: 21403 19512 100 219 0 21181 0
Current children cumulated CPU time (s) 12.66
Current children cumulated vsize (KiB) 85612

[startup+25.5013 s]
/proc/loadavg: 1.25 1.15 1.11 2/65 648
/proc/meminfo: memFree=1600208/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=85612 CPUtime=25.45
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 31253 0 0 0 2529 16 0 0 25 0 1 0 1151329609 87666688 19659 1992294400 4194304 5092341 548682068832 18446744073709551615 4244100 0 0 4096 3 0 0 0 17 0 0 0
/proc/647/statm: 21403 19659 100 219 0 21181 0
Current children cumulated CPU time (s) 25.45
Current children cumulated vsize (KiB) 85612

[startup+51.1013 s]
/proc/loadavg: 1.16 1.14 1.11 2/65 648
/proc/meminfo: memFree=1598992/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=85612 CPUtime=51.04
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 31564 0 0 0 5087 17 0 0 25 0 1 0 1151329609 87666688 19970 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 0 0 0
/proc/647/statm: 21403 19970 100 219 0 21181 0
Current children cumulated CPU time (s) 51.04
Current children cumulated vsize (KiB) 85612

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

[startup+55.6018 s]
/proc/loadavg: 1.15 1.13 1.11 2/65 648
/proc/meminfo: memFree=1598736/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=85612 CPUtime=55.53
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 31611 0 0 0 5536 17 0 0 25 0 1 0 1151329609 87666688 20017 1992294400 4194304 5092341 548682068832 18446744073709551615 4241418 0 0 4096 3 0 0 0 17 0 0 0
/proc/647/statm: 21403 20017 100 219 0 21181 0
Current children cumulated CPU time (s) 55.53
Current children cumulated vsize (KiB) 85612

[startup+68.4013 s]
/proc/loadavg: 1.12 1.13 1.10 2/65 648
/proc/meminfo: memFree=1598224/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=88208 CPUtime=68.33
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 31760 0 0 0 6815 18 0 0 25 0 1 0 1151329609 90324992 20166 1992294400 4194304 5092341 548682068832 18446744073709551615 4241418 0 0 4096 3 0 0 0 17 0 0 0
/proc/647/statm: 22052 20166 100 219 0 21830 0
Current children cumulated CPU time (s) 68.33
Current children cumulated vsize (KiB) 88208

[startup+74.801 s]
/proc/loadavg: 1.11 1.12 1.10 2/65 648
/proc/meminfo: memFree=1597904/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=88208 CPUtime=74.73
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 31831 0 0 0 7455 18 0 0 25 0 1 0 1151329609 90324992 20237 1992294400 4194304 5092341 548682068832 18446744073709551615 4241949 0 0 4096 3 0 0 0 17 0 0 0
/proc/647/statm: 22052 20237 100 219 0 21830 0
Current children cumulated CPU time (s) 74.73
Current children cumulated vsize (KiB) 88208

[startup+76.4012 s]
/proc/loadavg: 1.11 1.12 1.10 2/65 648
/proc/meminfo: memFree=1597904/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=88208 CPUtime=76.33
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 31848 0 0 0 7615 18 0 0 25 0 1 0 1151329609 90324992 20254 1992294400 4194304 5092341 548682068832 18446744073709551615 4250061 0 0 4096 3 0 0 0 17 0 0 0
/proc/647/statm: 22052 20254 100 219 0 21830 0
Current children cumulated CPU time (s) 76.33
Current children cumulated vsize (KiB) 88208

[startup+78.0014 s]
/proc/loadavg: 1.10 1.12 1.10 2/65 648
/proc/meminfo: memFree=1597776/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=88208 CPUtime=77.93
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 31870 0 0 0 7775 18 0 0 25 0 1 0 1151329609 90324992 20276 1992294400 4194304 5092341 548682068832 18446744073709551615 4240692 0 0 4096 3 0 0 0 17 0 0 0
/proc/647/statm: 22052 20276 100 219 0 21830 0
Current children cumulated CPU time (s) 77.93
Current children cumulated vsize (KiB) 88208

[startup+78.8015 s]
/proc/loadavg: 1.10 1.12 1.10 2/65 648
/proc/meminfo: memFree=1597776/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=88208 CPUtime=78.73
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 31879 0 0 0 7855 18 0 0 25 0 1 0 1151329609 90324992 20285 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 0 0 0
/proc/647/statm: 22052 20285 100 219 0 21830 0
Current children cumulated CPU time (s) 78.73
Current children cumulated vsize (KiB) 88208

[startup+79.2016 s]
/proc/loadavg: 1.10 1.12 1.10 2/65 648
/proc/meminfo: memFree=1597712/2055920 swapFree=4175700/4192956
[pid=647] ppid=645 vsize=88208 CPUtime=79.13
/proc/647/stat : 647 (minisat) R 645 647 426 0 -1 4194304 31881 0 0 0 7895 18 0 0 25 0 1 0 1151329609 90324992 20287 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 0 0 0
/proc/647/statm: 22052 20287 100 219 0 21830 0
Current children cumulated CPU time (s) 79.13
Current children cumulated vsize (KiB) 88208

Child status: 20
Real time (s): 79.2309
CPU time (s): 79.166
CPU user time (s): 78.967
CPU system time (s): 0.198969
CPU usage (%): 99.9181
Max. virtual memory (cumulated for all children) (KiB): 115328

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 78.967
system time used= 0.198969
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 31891
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= 237

runsolver used 0.45793 second user time and 1.16482 second system time

The end

Launcher Data 

Begin job on node28 at 2009-04-03 21:23:59
IDJOB=1563485
IDBENCH=70954
IDSOLVER=546
FILE ID=node28/1563485-1238786638
PBS_JOBID= 9085581
Free space on /tmp= 66340 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/c32sat/post-c32s-col400-16.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1563485-1238786638/watcher-1563485-1238786638 -o /tmp/evaluation-result-1563485-1238786638/solver-1563485-1238786638 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1563485-1238786638.cnf

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

MD5SUM BENCH= a8766c9a72f73eaac2d0ddc5a182692e
RANDOM SEED=744669244

node28.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		: 3000.212
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		: 3000.212
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:       1679224 kB
Buffers:         36568 kB
Cached:         194016 kB
SwapCached:      10476 kB
Active:         119640 kB
Inactive:       196216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1679224 kB
SwapTotal:     4192956 kB
SwapFree:      4175700 kB
Dirty:           16084 kB
Writeback:           0 kB
Mapped:          17880 kB
Slab:            46648 kB
Committed_AS:  3175148 kB
PageTables:       1428 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= 66340 MiB
End job on node28 at 2009-04-03 21:25:18