Trace number 1553813

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 6.93994 6.94418

General information on the benchmark

NameAPPLICATIONS/bitverif/
minandmaxor/minandmaxor032.cnf
MD5SUM25c7914ccc82f6f574febbd03924feed
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark6.93994
Satisfiable
(Un)Satisfiability was proved
Number of variables16239
Number of clauses48332
Sum of the clauses size112772
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 232220
Number of clauses of size 316110
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 |                                                                             |
0.00/0.04	c |  Number of variables:         16239                                         |
0.00/0.04	c |  Number of clauses:           48330                                         |
0.00/0.04	c |  Parse time:                   0.04 s                                       |
0.19/0.23	c |  Simplification time:          0.18 s                                       |
0.19/0.23	c |                                                                             |
0.19/0.23	c ============================[ Search Statistics ]==============================
0.19/0.23	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.19/0.23	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.19/0.23	c ===============================================================================
0.19/0.24	c |       100 |    5188    25841    96110 |     9475      100     14 |  0.062 % |
0.19/0.25	c |       250 |    5188    25841    96110 |    10422      250     15 |  0.062 % |
0.19/0.28	c |       475 |    5188    25841    96110 |    11464      475     21 |  0.062 % |
0.29/0.31	c |       812 |    5188    25841    96110 |    12611      812     30 |  0.062 % |
0.29/0.36	c |      1318 |    5188    25841    96110 |    13872     1318     37 |  0.062 % |
0.39/0.47	c |      2077 |    5188    25841    96110 |    15259     2077     40 |  0.062 % |
0.49/0.58	c |      3216 |    5188    25841    96110 |    16785     3216     45 |  0.062 % |
0.79/0.80	c |      4924 |    5187    25809    96046 |    18464     4922     44 |  0.068 % |
1.09/1.15	c |      7486 |    5187    25809    96046 |    20310     7484     45 |  0.068 % |
1.59/1.69	c |     11330 |    5187    25809    96046 |    22341    11328     46 |  0.068 % |
2.49/2.59	c |     17096 |    5187    25809    96046 |    24575    17094     52 |  0.068 % |
4.29/4.36	c |     25745 |    5185    25764    95938 |    27033    12958     48 |  0.080 % |
6.89/6.94	c ===============================================================================
6.89/6.94	c restarts              : 126
6.89/6.94	c conflicts             : 38314          (5559 /sec)
6.89/6.94	c decisions             : 174546         (25326 /sec)
6.89/6.94	c propagations          : 13300424       (1929849 /sec)
6.89/6.94	c conflict literals     : 2050187        (25.17 % deleted)
6.89/6.94	c Memory used           : 21.11 MB
6.89/6.94	c CPU time              : 6.89195 s
6.89/6.94	c 
6.89/6.94	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-1553813-1238718889/watcher-1553813-1238718889 -o /tmp/evaluation-result-1553813-1238718889/solver-1553813-1238718889 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1553813-1238718889.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: 0.95 0.98 0.99 3/64 31414
/proc/meminfo: memFree=1404080/2055920 swapFree=4176720/4192956
[pid=31414] ppid=31412 vsize=7608 CPUtime=0
/proc/31414/stat : 31414 (minisat) R 31412 31414 31031 0 -1 4194304 385 0 0 0 0 0 0 0 18 0 1 0 1144553951 7790592 369 1992294400 4194304 5092341 548682068832 18446744073709551615 4244898 0 0 4096 3 0 0 0 17 0 0 0
/proc/31414/statm: 1902 369 63 219 0 1680 0

[startup+0.0495889 s]
/proc/loadavg: 0.95 0.98 0.99 3/64 31414
/proc/meminfo: memFree=1404080/2055920 swapFree=4176720/4192956
[pid=31414] ppid=31412 vsize=11568 CPUtime=0.04
/proc/31414/stat : 31414 (minisat) R 31412 31414 31031 0 -1 4194304 1541 0 0 0 4 0 0 0 18 0 1 0 1144553951 11845632 1484 1992294400 4194304 5092341 548682068832 18446744073709551615 4600162 0 0 4096 3 0 0 0 17 0 0 0
/proc/31414/statm: 2930 1504 85 219 0 2708 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 11568

[startup+0.101596 s]
/proc/loadavg: 0.95 0.98 0.99 3/64 31414
/proc/meminfo: memFree=1404080/2055920 swapFree=4176720/4192956
[pid=31414] ppid=31412 vsize=12552 CPUtime=0.09
/proc/31414/stat : 31414 (minisat) R 31412 31414 31031 0 -1 4194304 1843 0 0 0 9 0 0 0 18 0 1 0 1144553951 12853248 1786 1992294400 4194304 5092341 548682068832 18446744073709551615 4515648 0 0 4096 3 0 0 0 17 0 0 0
/proc/31414/statm: 3138 1793 88 219 0 2916 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12552

[startup+0.301624 s]
/proc/loadavg: 0.95 0.98 0.99 3/64 31414
/proc/meminfo: memFree=1404080/2055920 swapFree=4176720/4192956
[pid=31414] ppid=31412 vsize=12488 CPUtime=0.29
/proc/31414/stat : 31414 (minisat) R 31412 31414 31031 0 -1 4194304 2270 0 0 0 28 1 0 0 19 0 1 0 1144553951 12787712 1600 1992294400 4194304 5092341 548682068832 18446744073709551615 4244154 0 0 4096 3 0 0 0 17 0 0 0
/proc/31414/statm: 3122 1600 102 219 0 2900 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12488

[startup+0.701687 s]
/proc/loadavg: 0.95 0.98 0.99 3/64 31414
/proc/meminfo: memFree=1404080/2055920 swapFree=4176720/4192956
[pid=31414] ppid=31412 vsize=12488 CPUtime=0.69
/proc/31414/stat : 31414 (minisat) R 31412 31414 31031 0 -1 4194304 2441 0 0 0 68 1 0 0 23 0 1 0 1144553951 12787712 1771 1992294400 4194304 5092341 548682068832 18446744073709551615 4241086 0 0 4096 3 0 0 0 17 0 0 0
/proc/31414/statm: 3122 1771 102 219 0 2900 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12488

[startup+1.50181 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 31415
/proc/meminfo: memFree=1397032/2055920 swapFree=4176720/4192956
[pid=31414] ppid=31412 vsize=12488 CPUtime=1.49
/proc/31414/stat : 31414 (minisat) R 31412 31414 31031 0 -1 4194304 2716 0 0 0 148 1 0 0 25 0 1 0 1144553951 12787712 2046 1992294400 4194304 5092341 548682068832 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 0 0 0
/proc/31414/statm: 3122 2046 102 219 0 2900 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12488

[startup+3.10105 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 31415
/proc/meminfo: memFree=1395304/2055920 swapFree=4176720/4192956
[pid=31414] ppid=31412 vsize=12784 CPUtime=3.09
/proc/31414/stat : 31414 (minisat) R 31412 31414 31031 0 -1 4194304 3421 0 0 0 307 2 0 0 25 0 1 0 1144553951 13090816 2751 1992294400 4194304 5092341 548682068832 18446744073709551615 4249939 0 0 4096 3 0 0 0 17 0 0 0
/proc/31414/statm: 3196 2751 102 219 0 2974 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 12784

[startup+6.30254 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 31415
/proc/meminfo: memFree=1393264/2055920 swapFree=4176720/4192956
[pid=31414] ppid=31412 vsize=21608 CPUtime=6.29
/proc/31414/stat : 31414 (minisat) R 31412 31414 31031 0 -1 4194304 6580 0 0 0 625 4 0 0 25 0 1 0 1144553951 22126592 4390 1992294400 4194304 5092341 548682068832 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 0 0 0
/proc/31414/statm: 5402 4390 102 219 0 5180 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 21608

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

[startup+6.70161 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 31415
/proc/meminfo: memFree=1386608/2055920 swapFree=4176720/4192956
[pid=31414] ppid=31412 vsize=21608 CPUtime=6.69
/proc/31414/stat : 31414 (minisat) R 31412 31414 31031 0 -1 4194304 6659 0 0 0 665 4 0 0 25 0 1 0 1144553951 22126592 4469 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 0 0 0
/proc/31414/statm: 5402 4469 102 219 0 5180 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 21608

[startup+6.90164 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 31415
/proc/meminfo: memFree=1386608/2055920 swapFree=4176720/4192956
[pid=31414] ppid=31412 vsize=21608 CPUtime=6.89
/proc/31414/stat : 31414 (minisat) R 31412 31414 31031 0 -1 4194304 6686 0 0 0 685 4 0 0 25 0 1 0 1144553951 22126592 4496 1992294400 4194304 5092341 548682068832 18446744073709551615 4241912 0 0 4096 3 0 0 0 17 0 0 0
/proc/31414/statm: 5402 4496 102 219 0 5180 0
Current children cumulated CPU time (s) 6.89
Current children cumulated vsize (KiB) 21608

Child status: 20
Real time (s): 6.94418
CPU time (s): 6.93994
CPU user time (s): 6.89195
CPU system time (s): 0.047992
CPU usage (%): 99.939
Max. virtual memory (cumulated for all children) (KiB): 21608

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.89195
system time used= 0.047992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6698
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= 19

runsolver used 0.008998 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node34 at 2009-04-03 02:34:50
IDJOB=1553813
IDBENCH=70768
IDSOLVER=546
FILE ID=node34/1553813-1238718889
PBS_JOBID= 9085312
Free space on /tmp= 66380 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/bitverif/minandmaxor/minandmaxor032.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553813-1238718889/watcher-1553813-1238718889 -o /tmp/evaluation-result-1553813-1238718889/solver-1553813-1238718889 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1553813-1238718889.cnf

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

MD5SUM BENCH= 25c7914ccc82f6f574febbd03924feed
RANDOM SEED=1285271560

node34.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		: 3000.259
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		: 3000.259
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:       1404560 kB
Buffers:         96484 kB
Cached:         453216 kB
SwapCached:      10076 kB
Active:         261240 kB
Inactive:       299976 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1404560 kB
SwapTotal:     4192956 kB
SwapFree:      4176720 kB
Dirty:            1728 kB
Writeback:           0 kB
Mapped:          17244 kB
Slab:            76172 kB
Committed_AS:  2925072 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= 66380 MiB
End job on node34 at 2009-04-03 02:34:57