Trace number 1554557

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
picosat 913UNSAT 8.07877 8.08094

General information on the benchmark

NameAPPLICATIONS/bitverif/
countbitssrl/countbitssrl016.cnf
MD5SUM505fee3283f518ccb9d234f549b3c214
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.65659
Satisfiable
(Un)Satisfiability was proved
Number of variables4567
Number of clauses13652
Sum of the clauses size31852
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 29100
Number of clauses of size 34550
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 PicoSAT SAT Solver Version 913
0.00/0.00	c Copyright (c) 2006 - 2009 Armin Biere JKU Linz
0.00/0.00	c gcc -Wall -Wextra -m32 -static -DNDEBUG -O3 -fomit-frame-pointer -finline-limit=1000000
0.00/0.00	c
0.00/0.00	c parsing HOME/instance-1554557-1238729352.cnf
0.00/0.00	c parsed header 'p cnf 4567 13652'
0.20/0.28	c initialized 4567 variables
0.20/0.28	c found 13652 non trivial clauses
0.20/0.28	c
0.20/0.28	c random number generator seed 0
0.20/0.28	c 
0.20/0.28	c  seconds     variables   original    learned     agility
0.20/0.28	c         level        used      conflicts    limit          MB
0.20/0.28	c 
0.20/0.28	c s   0.3   0.0  3489  64.6  3581   161     0     0   0.0   0.6 
0.30/0.32	c 
0.30/0.32	c initial reduction limit 2275 clauses
0.30/0.32	c 
0.30/0.32	c +   0.3  17.1  3489  98.1  3581   261    98  2502  19.6   0.6 
0.30/0.32	c R   0.3  17.1  3489  98.1  3581   263   100  2502  22.0   0.6 
0.30/0.35	c +   0.4  57.5  3489  99.2  3581   411   245  2752  23.8   0.7 
0.30/0.39	c N   0.4  50.6  3489  99.4  3581   563   392  2752  25.3   0.7 
0.40/0.41	c +   0.4  48.0  3489  99.4  3581   636   464  3027  21.6   0.7 
0.50/0.51	c +   0.5  40.1  3489  99.6  3581   973   798  3329  24.7   0.7 
0.60/0.61	c N   0.6  35.4  3489  99.6  3581  1363  1185  3329  23.6   0.8 
0.60/0.64	c +   0.6  34.4  3489  99.6  3581  1478  1300  3661  29.5   0.8 
0.70/0.78	c +   0.8  33.8  3489  99.8  3581  2235  2049  4027  25.4   1.0 
1.10/1.14	c +   1.1  32.3  3489  99.8  3581  3370  3176  4429  19.9   1.3 
1.10/1.14	c R   1.1  32.3  3489  99.8  3581  3370  3176  4429  20.8   1.3 
1.60/1.61	c +   1.6  29.4  3489  99.8  3581  5072  2625  4871  19.7   1.0 
2.30/2.31	c +   2.3  27.0  3489  99.8  3581  7625  2730  5358  27.6   1.0 
2.40/2.44	c N   2.4  26.5  3489  99.8  3581  8187  3291  5358  27.0   1.0 
3.20/3.22	c +   3.2  26.0  3489  99.9  3581 11454  3864  5893  28.7   1.1 
4.79/4.82	c +   4.8  25.1  3489  99.9  3581 17197  3687  6482  22.8   1.1 
5.19/5.21	c s   5.2  24.8  3486  99.9  3578 18766  5253  6482  22.1   1.3 
5.19/5.22	c N   5.2  24.8  3486  99.9  3578 18868  5355  6482  32.4   1.3 
5.19/5.27	c N   5.3  24.7  3486  99.9  3578 19168  5655  6482  28.0   1.3 
5.40/5.48	c N   5.5  24.6  3486  99.9  3578 19969  6455  6482  31.2   1.5 
5.40/5.48	c 
5.40/5.48	c  seconds     variables   original    learned     agility
5.40/5.48	c         level        used      conflicts    limit          MB
5.40/5.48	c 
5.89/5.99	c N   6.0  24.0  3486  99.9  3578 21978  5212  6482  31.1   1.3 
6.89/6.98	c +   7.0  23.3  3486  99.9  3578 25811  5776  7130  24.9   1.3 
7.19/7.29	c R   7.3  23.1  3486  99.9  3578 26793  6757  7130  10.7   1.5 
7.99/8.07	c 0   8.1  22.5    17 100.0  3578 29527  5867  7130  15.9   1.4 
7.99/8.08	c 
7.99/8.08	c  seconds     variables   original    learned     agility
7.99/8.08	c         level        used      conflicts    limit          MB
7.99/8.08	c 
7.99/8.08	s UNSATISFIABLE
7.99/8.08	c
7.99/8.08	c 2 iterations
7.99/8.08	c 23 restarts
7.99/8.08	c 206 failed literals
7.99/8.08	c 29527 conflicts
7.99/8.08	c 38821 decisions
7.99/8.08	c 4550 fixed variables
7.99/8.08	c 1010916 learned literals
7.99/8.08	c 69.5% deleted literals
7.99/8.08	c 24502602 propagations
7.99/8.08	c 100.0% variables used
7.99/8.08	c 8.1 seconds in library
7.99/8.08	c 3.0 megaprops/second
7.99/8.08	c 2 simplifications
7.99/8.08	c 8 reductions
7.99/8.08	c 3.8 MB recycled
7.99/8.08	c 1.5 MB maximally allocated
7.99/8.08	c 8.1 seconds total run time

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-1554557-1238729352/watcher-1554557-1238729352 -o /tmp/evaluation-result-1554557-1238729352/solver-1554557-1238729352 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1554557-1238729352.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: 0.98 0.97 0.98 2/81 24190
/proc/meminfo: memFree=1765880/2055920 swapFree=4172784/4192956
[pid=24190] ppid=24188 vsize=1232 CPUtime=0
/proc/24190/stat : 24190 (picosat) R 24188 24190 23855 0 -1 4194304 197 0 0 0 0 0 0 0 18 0 1 0 1145599042 1261568 182 1992294400 134512640 135137933 4294956240 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/24190/statm: 308 182 56 152 0 154 0

[startup+0.0687671 s]
/proc/loadavg: 0.98 0.97 0.98 2/81 24190
/proc/meminfo: memFree=1765880/2055920 swapFree=4172784/4192956
[pid=24190] ppid=24188 vsize=1380 CPUtime=0.06
/proc/24190/stat : 24190 (picosat) R 24188 24190 23855 0 -1 4194304 253 0 0 0 6 0 0 0 18 0 1 0 1145599042 1413120 238 1992294400 134512640 135137933 4294956240 18446744073709551615 134548652 0 0 4096 0 0 0 0 17 1 0 0
/proc/24190/statm: 345 238 61 152 0 191 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1380

[startup+0.10177 s]
/proc/loadavg: 0.98 0.97 0.98 2/81 24190
/proc/meminfo: memFree=1765880/2055920 swapFree=4172784/4192956
[pid=24190] ppid=24188 vsize=1380 CPUtime=0.1
/proc/24190/stat : 24190 (picosat) R 24188 24190 23855 0 -1 4194304 253 0 0 0 10 0 0 0 18 0 1 0 1145599042 1413120 238 1992294400 134512640 135137933 4294956240 18446744073709551615 134548661 0 0 4096 0 0 0 0 17 1 0 0
/proc/24190/statm: 345 238 61 152 0 191 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1380

[startup+0.301793 s]
/proc/loadavg: 0.98 0.97 0.98 2/81 24190
/proc/meminfo: memFree=1765880/2055920 swapFree=4172784/4192956
[pid=24190] ppid=24188 vsize=1380 CPUtime=0.3
/proc/24190/stat : 24190 (picosat) R 24188 24190 23855 0 -1 4194304 263 0 0 0 30 0 0 0 19 0 1 0 1145599042 1413120 248 1992294400 134512640 135137933 4294956240 18446744073709551615 134527802 0 0 4096 0 0 0 0 17 1 0 0
/proc/24190/statm: 345 248 69 152 0 191 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1380

[startup+0.701837 s]
/proc/loadavg: 0.98 0.97 0.98 2/81 24190
/proc/meminfo: memFree=1765880/2055920 swapFree=4172784/4192956
[pid=24190] ppid=24188 vsize=1776 CPUtime=0.7
/proc/24190/stat : 24190 (picosat) R 24188 24190 23855 0 -1 4194304 343 0 0 0 70 0 0 0 23 0 1 0 1145599042 1818624 328 1992294400 134512640 135137933 4294956240 18446744073709551615 134522906 0 0 4096 0 0 0 0 17 1 0 0
/proc/24190/statm: 444 328 69 152 0 290 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1776

[startup+1.50193 s]
/proc/loadavg: 0.98 0.97 0.98 2/82 24191
/proc/meminfo: memFree=1764464/2055920 swapFree=4172784/4192956
[pid=24190] ppid=24188 vsize=2436 CPUtime=1.5
/proc/24190/stat : 24190 (picosat) R 24188 24190 23855 0 -1 4194304 504 0 0 0 150 0 0 0 25 0 1 0 1145599042 2494464 489 1992294400 134512640 135137933 4294956240 18446744073709551615 134548870 0 0 4096 0 0 0 0 17 1 0 0
/proc/24190/statm: 609 489 69 152 0 455 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 2436

[startup+3.1021 s]
/proc/loadavg: 0.98 0.97 0.98 2/82 24191
/proc/meminfo: memFree=1763952/2055920 swapFree=4172784/4192956
[pid=24190] ppid=24188 vsize=2436 CPUtime=3.1
/proc/24190/stat : 24190 (picosat) R 24188 24190 23855 0 -1 4194304 506 0 0 0 310 0 0 0 25 0 1 0 1145599042 2494464 491 1992294400 134512640 135137933 4294956240 18446744073709551615 134551650 0 0 4096 0 0 0 0 17 1 0 0
/proc/24190/statm: 609 491 69 152 0 455 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 2436

[startup+6.30146 s]
/proc/loadavg: 0.98 0.97 0.98 2/82 24191
/proc/meminfo: memFree=1763952/2055920 swapFree=4172784/4192956
[pid=24190] ppid=24188 vsize=2436 CPUtime=6.29
/proc/24190/stat : 24190 (picosat) R 24188 24190 23855 0 -1 4194304 508 0 0 0 629 0 0 0 25 0 1 0 1145599042 2494464 493 1992294400 134512640 135137933 4294956240 18446744073709551615 134527828 0 0 4096 0 0 0 0 17 1 0 0
/proc/24190/statm: 609 493 69 152 0 455 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2436

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

[startup+7.10155 s]
/proc/loadavg: 0.98 0.97 0.98 2/82 24191
/proc/meminfo: memFree=1763952/2055920 swapFree=4172784/4192956
[pid=24190] ppid=24188 vsize=2436 CPUtime=7.09
/proc/24190/stat : 24190 (picosat) R 24188 24190 23855 0 -1 4194304 508 0 0 0 709 0 0 0 25 0 1 0 1145599042 2494464 493 1992294400 134512640 135137933 4294956240 18446744073709551615 134548816 0 0 4096 0 0 0 0 17 1 0 0
/proc/24190/statm: 609 493 69 152 0 455 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 2436

[startup+7.50159 s]
/proc/loadavg: 0.98 0.97 0.98 2/82 24191
/proc/meminfo: memFree=1763952/2055920 swapFree=4172784/4192956
[pid=24190] ppid=24188 vsize=2436 CPUtime=7.49
/proc/24190/stat : 24190 (picosat) R 24188 24190 23855 0 -1 4194304 518 0 0 0 749 0 0 0 25 0 1 0 1145599042 2494464 503 1992294400 134512640 135137933 4294956240 18446744073709551615 134552296 0 0 4096 0 0 0 0 17 1 0 0
/proc/24190/statm: 609 503 69 152 0 455 0
Current children cumulated CPU time (s) 7.49
Current children cumulated vsize (KiB) 2436

[startup+7.90163 s]
/proc/loadavg: 0.98 0.97 0.98 2/82 24191
/proc/meminfo: memFree=1763888/2055920 swapFree=4172784/4192956
[pid=24190] ppid=24188 vsize=2436 CPUtime=7.89
/proc/24190/stat : 24190 (picosat) R 24188 24190 23855 0 -1 4194304 518 0 0 0 789 0 0 0 25 0 1 0 1145599042 2494464 503 1992294400 134512640 135137933 4294956240 18446744073709551615 134527737 0 0 4096 0 0 0 0 17 1 0 0
/proc/24190/statm: 609 503 69 152 0 455 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 2436

[startup+8.00165 s]
/proc/loadavg: 0.98 0.97 0.98 2/82 24191
/proc/meminfo: memFree=1763888/2055920 swapFree=4172784/4192956
[pid=24190] ppid=24188 vsize=2436 CPUtime=7.99
/proc/24190/stat : 24190 (picosat) R 24188 24190 23855 0 -1 4194304 518 0 0 0 799 0 0 0 25 0 1 0 1145599042 2494464 503 1992294400 134512640 135137933 4294956240 18446744073709551615 134522698 0 0 4096 0 0 0 0 17 1 0 0
/proc/24190/statm: 609 503 69 152 0 455 0
Current children cumulated CPU time (s) 7.99
Current children cumulated vsize (KiB) 2436

Child status: 20
Real time (s): 8.08094
CPU time (s): 8.07877
CPU user time (s): 8.07777
CPU system time (s): 0.000999
CPU usage (%): 99.9732
Max. virtual memory (cumulated for all children) (KiB): 2436

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.07777
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 522
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= 11

runsolver used 0.017997 second user time and 0.029995 second system time

The end

Launcher Data 

Begin job on node87 at 2009-04-03 05:29:12
IDJOB=1554557
IDBENCH=70783
IDSOLVER=506
FILE ID=node87/1554557-1238729352
PBS_JOBID= 9085331
Free space on /tmp= 66436 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT09/APPLICATIONS/bitverif/countbitssrl/countbitssrl016.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1554557-1238729352/watcher-1554557-1238729352 -o /tmp/evaluation-result-1554557-1238729352/solver-1554557-1238729352 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1554557-1238729352.cnf

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

MD5SUM BENCH= 505fee3283f518ccb9d234f549b3c214
RANDOM SEED=1525264257

node87.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1766360 kB
Buffers:         47676 kB
Cached:         161796 kB
SwapCached:       9352 kB
Active:          51372 kB
Inactive:       169004 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1766360 kB
SwapTotal:     4192956 kB
SwapFree:      4172784 kB
Dirty:            1148 kB
Writeback:           0 kB
Mapped:          16472 kB
Slab:            53412 kB
Committed_AS:  2857616 kB
PageTables:       2676 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= 66436 MiB
End job on node87 at 2009-04-03 05:29:20