Trace number 1732027

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
VARSAT-random 2009-03-22UNSAT 2.29565 2.29705

General information on the benchmark

NameCRAFTED/sgen/unsat/
sgen1-unsat-61-100.cnf
MD5SUM43b8e7efe061e21db6b4c047915ae87c
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.959853
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of clauses132
Sum of the clauses size396
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3132
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 ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  61                                                   |
0.00/0.00	c |  Number of clauses:    132                                                  |
0.00/0.00	c |  Parsing time:         0.00         s                                       |
0.00/0.00	c |  Timeout:              43200 s
0.00/0.00	c |  Random Seed:          972150693.000000
0.00/0.00	c |  Heuristic:            EMSP-G, threshold 0.750                              |
0.00/0.00	c |  Branching Rule:       default (solution-guided)                            |
0.00/0.00	c |  Learned clauses in surveys?  Using NO learned clauses.                     |
0.00/0.00	c |                                                                             |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |      61      132      396 |       44        0    nan |  0.000 % |
0.00/0.00	c |       101 |      61      132      396 |       48       45     10 |  0.027 % |
0.00/0.00	c |       251 |      61      132      396 |       53       61     10 |  0.027 % |
0.00/0.00	c |       476 |      61      132      396 |       58       70      9 |  0.027 % |
0.00/0.00	c |       814 |      61      132      396 |       64       65      9 |  0.027 % |
0.00/0.01	c |      1320 |      61      132      396 |       70       52      8 |  0.027 % |
0.00/0.02	c |      2080 |      61      132      396 |       77       61      8 |  0.027 % |
0.00/0.03	c |      3219 |      61      132      396 |       85       76      8 |  0.027 % |
0.00/0.04	c |      4927 |      61      132      396 |       94       62      8 |  0.027 % |
0.06/0.07	c |      7490 |      61      132      396 |      103       89      7 |  0.027 % |
0.09/0.10	c |     11335 |      61      132      396 |      114      106      8 |  0.027 % |
0.09/0.16	c |     17103 |      61      132      396 |      125      104      7 |  0.027 % |
0.19/0.24	c |     25752 |      61      132      396 |      138      109      8 |  0.027 % |
0.29/0.37	c |     38728 |      61      132      396 |      151      108      8 |  0.027 % |
0.49/0.55	c |     58191 |      61      132      396 |      167      123      8 |  0.028 % |
0.79/0.84	c |     87383 |      61      132      396 |      183      147      8 |  0.028 % |
1.29/1.30	c |    131173 |      61      132      396 |      202      145      8 |  0.054 % |
1.89/1.95	c |    196857 |      59      126      378 |      222      207      8 |  3.306 % |
2.20/2.29	c ===============================================================================
2.20/2.29	c surveys--CPU time (sec)   : 0.0030         (0.13 % of total)
2.20/2.29	c surveys--attempted        : 18             (6000 /sec)
2.20/2.29	c surveys--converged        : 18             (100.00 % successful)
2.20/2.29	c restarts              : 18
2.20/2.29	c conflicts             : 229322         (100025 /sec)
2.20/2.29	c decisions             : 285062         (1.58 % random) (124337 /sec)
2.20/2.29	c propagations          : 4635019        (2021685 /sec)
2.20/2.29	c conflict literals     : 2342328        (12.58 % deleted)
2.20/2.29	c Memory used           : 2.10 MB
2.20/2.29	c Total CPU time (sec)      : 2.2957      
2.20/2.29	c 
2.20/2.29	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-1732027-1240776930/watcher-1732027-1240776930 -o /tmp/evaluation-result-1732027-1240776930/solver-1732027-1240776930 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/varsat-random_static -seed=972150693 HOME/instance-1732027-1240776930.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: 1.03 1.00 1.07 3/65 24816
/proc/meminfo: memFree=1813744/2055920 swapFree=4191356/4192956
[pid=24816] ppid=24814 vsize=2144 CPUtime=0
/proc/24816/stat : 24816 (varsat-random_s) R 24814 24816 24642 0 -1 4194304 152 0 0 0 0 0 0 0 18 0 1 0 105720721 2195456 137 1992294400 4194304 5102416 548682068800 18446744073709551615 4524903 0 0 4096 3 0 0 0 17 1 0 0
/proc/24816/statm: 536 137 112 221 0 312 0

[startup+0.0700501 s]
/proc/loadavg: 1.03 1.00 1.07 3/65 24816
/proc/meminfo: memFree=1813744/2055920 swapFree=4191356/4192956
[pid=24816] ppid=24814 vsize=2144 CPUtime=0.06
/proc/24816/stat : 24816 (varsat-random_s) R 24814 24816 24642 0 -1 4194304 155 0 0 0 6 0 0 0 18 0 1 0 105720721 2195456 140 1992294400 4194304 5102416 548682068800 18446744073709551615 4497277 0 0 4096 3 0 0 0 17 1 0 0
/proc/24816/statm: 536 140 112 221 0 312 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2144

[startup+0.101053 s]
/proc/loadavg: 1.03 1.00 1.07 3/65 24816
/proc/meminfo: memFree=1813744/2055920 swapFree=4191356/4192956
[pid=24816] ppid=24814 vsize=2144 CPUtime=0.09
/proc/24816/stat : 24816 (varsat-random_s) R 24814 24816 24642 0 -1 4194304 156 0 0 0 9 0 0 0 18 0 1 0 105720721 2195456 141 1992294400 4194304 5102416 548682068800 18446744073709551615 4249529 0 0 4096 3 0 0 0 17 1 0 0
/proc/24816/statm: 536 141 112 221 0 312 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2144

[startup+0.301072 s]
/proc/loadavg: 1.03 1.00 1.07 3/65 24816
/proc/meminfo: memFree=1813744/2055920 swapFree=4191356/4192956
[pid=24816] ppid=24814 vsize=2144 CPUtime=0.29
/proc/24816/stat : 24816 (varsat-random_s) R 24814 24816 24642 0 -1 4194304 159 0 0 0 29 0 0 0 19 0 1 0 105720721 2195456 144 1992294400 4194304 5102416 548682068800 18446744073709551615 4249797 0 0 4096 3 0 0 0 17 1 0 0
/proc/24816/statm: 536 144 112 221 0 312 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2144

[startup+0.701111 s]
/proc/loadavg: 1.03 1.00 1.07 3/65 24816
/proc/meminfo: memFree=1813744/2055920 swapFree=4191356/4192956
[pid=24816] ppid=24814 vsize=2144 CPUtime=0.69
/proc/24816/stat : 24816 (varsat-random_s) R 24814 24816 24642 0 -1 4194304 163 0 0 0 69 0 0 0 22 0 1 0 105720721 2195456 148 1992294400 4194304 5102416 548682068800 18446744073709551615 4249563 0 0 4096 3 0 0 0 17 1 0 0
/proc/24816/statm: 536 148 112 221 0 312 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2144

[startup+1.50119 s]
/proc/loadavg: 1.03 1.00 1.07 2/66 24817
/proc/meminfo: memFree=1813608/2055920 swapFree=4191356/4192956
[pid=24816] ppid=24814 vsize=2144 CPUtime=1.49
/proc/24816/stat : 24816 (varsat-random_s) R 24814 24816 24642 0 -1 4194304 167 0 0 0 149 0 0 0 25 0 1 0 105720721 2195456 152 1992294400 4194304 5102416 548682068800 18446744073709551615 4230687 0 0 4096 3 0 0 0 17 1 0 0
/proc/24816/statm: 536 152 112 221 0 312 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2144

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

[startup+1.90123 s]
/proc/loadavg: 1.03 1.00 1.07 2/66 24817
/proc/meminfo: memFree=1813608/2055920 swapFree=4191356/4192956
[pid=24816] ppid=24814 vsize=2144 CPUtime=1.89
/proc/24816/stat : 24816 (varsat-random_s) R 24814 24816 24642 0 -1 4194304 168 0 0 0 189 0 0 0 25 0 1 0 105720721 2195456 153 1992294400 4194304 5102416 548682068800 18446744073709551615 4249652 0 0 4096 3 0 0 0 17 1 0 0
/proc/24816/statm: 536 153 112 221 0 312 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 2144

[startup+2.10125 s]
/proc/loadavg: 1.03 1.00 1.07 2/66 24817
/proc/meminfo: memFree=1813416/2055920 swapFree=4191356/4192956
[pid=24816] ppid=24814 vsize=2144 CPUtime=2.1
/proc/24816/stat : 24816 (varsat-random_s) R 24814 24816 24642 0 -1 4194304 170 0 0 0 210 0 0 0 25 0 1 0 105720721 2195456 155 1992294400 4194304 5102416 548682068800 18446744073709551615 4230816 0 0 4096 3 0 0 0 17 1 0 0
/proc/24816/statm: 536 155 112 221 0 312 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 2144

[startup+2.20526 s]
/proc/loadavg: 1.03 1.00 1.07 2/66 24817
/proc/meminfo: memFree=1813416/2055920 swapFree=4191356/4192956
[pid=24816] ppid=24814 vsize=2144 CPUtime=2.2
/proc/24816/stat : 24816 (varsat-random_s) R 24814 24816 24642 0 -1 4194304 170 0 0 0 220 0 0 0 25 0 1 0 105720721 2195456 155 1992294400 4194304 5102416 548682068800 18446744073709551615 4244075 0 0 4096 3 0 0 0 17 1 0 0
/proc/24816/statm: 536 155 112 221 0 312 0
Current children cumulated CPU time (s) 2.2
Current children cumulated vsize (KiB) 2144

Child status: 20
Real time (s): 2.29705
CPU time (s): 2.29565
CPU user time (s): 2.29565
CPU system time (s): 0
CPU usage (%): 99.9389
Max. virtual memory (cumulated for all children) (KiB): 2144

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.29565
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 175
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= 4

runsolver used 0.007998 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node56 at 2009-04-26 22:15:30
IDJOB=1732027
IDBENCH=71108
IDSOLVER=539
FILE ID=node56/1732027-1240776930
PBS_JOBID= 9187254
Free space on /tmp= 103060 MiB

SOLVER NAME= VARSAT-random 2009-03-22
BENCH NAME= SAT09/CRAFTED/sgen/unsat/sgen1-unsat-61-100.cnf
COMMAND LINE= HOME/varsat-random_static -seed=RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1732027-1240776930/watcher-1732027-1240776930 -o /tmp/evaluation-result-1732027-1240776930/solver-1732027-1240776930 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/varsat-random_static -seed=972150693 HOME/instance-1732027-1240776930.cnf

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

MD5SUM BENCH= 43b8e7efe061e21db6b4c047915ae87c
RANDOM SEED=972150693

node56.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		: 3000.218
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		: 3000.218
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:       1814224 kB
Buffers:         22776 kB
Cached:         147252 kB
SwapCached:        924 kB
Active:          46000 kB
Inactive:       137932 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1814224 kB
SwapTotal:     4192956 kB
SwapFree:      4191356 kB
Dirty:            1324 kB
Writeback:           0 kB
Mapped:          22588 kB
Slab:            43740 kB
Committed_AS:   368624 kB
PageTables:       1468 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= 103060 MiB
End job on node56 at 2009-04-26 22:15:32