Trace number 1553777

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 16.9724 16.9792

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 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-1553777-1238718477.cnf
0.00/0.00	c parsed header 'p cnf 16239 48332'
1.09/1.17	c initialized 16239 variables
1.09/1.17	c found 48332 non trivial clauses
1.09/1.17	c
1.09/1.17	c random number generator seed 0
1.09/1.17	c 
1.09/1.17	c  seconds     variables   original    learned     agility
1.09/1.17	c         level        used      conflicts    limit          MB
1.09/1.17	c 
1.09/1.17	c s   1.2   0.0 16158  29.2 16101    68     0     0   0.0   1.8 
1.19/1.21	c 
1.19/1.21	c initial reduction limit 8055 clauses
1.19/1.21	c 
1.19/1.21	c +   1.2  63.1 16158  40.5 16101   168    95  8860  19.6   1.9 
1.19/1.21	c R   1.2  63.1 16158  40.5 16101   168    95  8860  19.3   1.9 
1.19/1.27	c +   1.3 185.0 16158  49.2 16101   318   245  9746   9.8   2.0 
1.29/1.32	c R   1.3 190.4 16158  51.0 16101   468   395  9746  13.3   2.0 
1.29/1.36	c +   1.4 190.4 16158  51.5 16101   543   470 10720  11.1   2.0 
1.39/1.46	c +   1.5 170.4 16158  54.5 16101   880   805 11792  10.4   2.1 
1.49/1.58	c R   1.6 157.0 16158  58.7 16101  1268  1188 11792   2.1   2.2 
1.59/1.65	c +   1.7 154.2 16158  62.8 16101  1385  1305 12971   2.5   2.2 
1.89/1.92	c +   1.9 147.8 16158  66.4 16101  2142  2054 14268  13.9   2.4 
2.29/2.33	c R   2.3 154.0 16158  70.3 16101  3271  3177 14268  10.5   2.6 
2.29/2.33	c +   2.3 153.6 16158  70.3 16101  3277  3183 15694  10.3   2.7 
2.99/3.01	c +   3.0 143.6 16158  87.5 16101  4979  4877 17263  16.2   3.0 
3.88/3.91	c +   3.9 139.5 16158  93.7 16101  7532  7426 18989   9.2   3.8 
4.08/4.19	c R   4.2 140.5 16158  94.5 16101  8078  7971 18989  16.3   4.2 
5.40/5.48	c +   5.5 134.0 16158  98.2 16101 11361 11249 20887   8.7   4.9 
7.98/8.00	c +   8.0 129.6 16158  99.0 16101 17104 16982 22975   9.9   6.9 
8.88/8.90	c R   8.9 129.8 16158  99.0 16101 19303 19180 22975  16.3   7.7 
9.28/9.38	c s   9.4 127.6 16131  99.0 16074 20423 19638 22975  14.3   7.8 
9.38/9.47	c R   9.5 127.5 16128  99.0 16074 20525 19738 22975  13.8   7.8 
9.58/9.69	c R   9.7 127.3 16128  99.0 16074 20827 20040 22975  16.7   8.0 
9.58/9.69	c 
9.58/9.69	c  seconds     variables   original    learned     agility
9.58/9.69	c         level        used      conflicts    limit          MB
9.58/9.69	c 
9.98/10.05	c R  10.0 125.9 16128  99.0 16074 21633 20842 22975  16.5   8.1 
10.08/10.14	c s  10.1 125.4 16128  99.0 16072 21880 21083 22975  17.1   8.2 
10.79/10.82	c R  10.8 122.7 16128  99.0 16072 23641 22841 22975  12.8   8.5 
11.59/11.64	c s  11.6 120.8 16103  99.0 16047 25561 12961 22975  11.5   4.9 
11.59/11.68	c R  11.7 120.6 16099  99.0 16047 25668 13065 22975  11.2   4.9 
11.69/11.71	c +  11.7 120.5 16099  99.0 16047 25718 13115 25272   8.7   4.9 
11.79/11.82	c R  11.8 119.9 16099  99.0 16047 25971 13367 25272   9.9   4.9 
12.09/12.16	c R  12.2 118.9 16099  99.0 16047 26771 14166 25272  19.4   5.1 
12.29/12.30	c s  12.3 118.1 16099  99.0 16044 27115 14505 25272  16.3   5.1 
12.99/13.04	c R  13.0 117.0 16099  99.0 16044 28778 16164 25272  17.5   5.7 
15.29/15.30	c R  15.3 112.3 16099  99.0 16044 33589 20966 25272  14.5   6.7 
16.69/16.73	c s  16.7 108.9 16094  99.0 16039 36747 24077 25272  11.7   7.3 
16.69/16.78	c R  16.8 108.7 16094  99.0 16039 36847 24177 25272  18.9   7.3 
16.79/16.89	c R  16.9 108.2 16094  99.0 16039 37147 24477 25272  15.6   7.3 
16.89/16.96	c 0  17.0 107.9 13010  99.0 16039 37344 24671 25272   7.8   7.4 
16.89/16.97	c 
16.89/16.97	c  seconds     variables   original    learned     agility
16.89/16.97	c         level        used      conflicts    limit          MB
16.89/16.97	c 
16.89/16.97	s UNSATISFIABLE
16.89/16.97	c
16.89/16.97	c 7 iterations
16.89/16.97	c 140 restarts
16.89/16.97	c 68 failed literals
16.89/16.97	c 37344 conflicts
16.89/16.97	c 229045 decisions
16.89/16.97	c 3229 fixed variables
16.89/16.97	c 2329622 learned literals
16.89/16.97	c 39.7% deleted literals
16.89/16.97	c 57126325 propagations
16.89/16.97	c 99.0% variables used
16.89/16.97	c 17.0 seconds in library
16.89/16.97	c 3.4 megaprops/second
16.89/16.97	c 6 simplifications
16.89/16.97	c 1 reductions
16.89/16.97	c 4.4 MB recycled
16.89/16.97	c 8.7 MB maximally allocated
16.89/16.97	c 17.0 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-1553777-1238718477/watcher-1553777-1238718477 -o /tmp/evaluation-result-1553777-1238718477/solver-1553777-1238718477 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1553777-1238718477.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: 0.93 0.98 1.04 2/64 21000
/proc/meminfo: memFree=1828216/2055920 swapFree=4175732/4192956
[pid=21000] ppid=20998 vsize=1700 CPUtime=0
/proc/21000/stat : 21000 (picosat) R 20998 21000 20477 0 -1 4194304 342 0 0 0 0 0 0 0 18 0 1 0 1144512931 1740800 327 1992294400 134512640 135137933 4294956224 18446744073709551615 134689438 0 0 4096 0 0 0 0 17 1 0 0
/proc/21000/statm: 458 328 56 152 0 304 0

[startup+0.0581391 s]
/proc/loadavg: 0.93 0.98 1.04 2/64 21000
/proc/meminfo: memFree=1828216/2055920 swapFree=4175732/4192956
[pid=21000] ppid=20998 vsize=2764 CPUtime=0.05
/proc/21000/stat : 21000 (picosat) R 20998 21000 20477 0 -1 4194304 598 0 0 0 5 0 0 0 18 0 1 0 1144512931 2830336 583 1992294400 134512640 135137933 4294956224 18446744073709551615 134529023 0 0 4096 0 0 0 0 17 1 0 0
/proc/21000/statm: 691 583 61 152 0 537 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 2764

[startup+0.101143 s]
/proc/loadavg: 0.93 0.98 1.04 2/64 21000
/proc/meminfo: memFree=1828216/2055920 swapFree=4175732/4192956
[pid=21000] ppid=20998 vsize=2912 CPUtime=0.09
/proc/21000/stat : 21000 (picosat) R 20998 21000 20477 0 -1 4194304 622 0 0 0 9 0 0 0 18 0 1 0 1144512931 2981888 607 1992294400 134512640 135137933 4294956224 18446744073709551615 134548949 0 0 4096 0 0 0 0 17 1 0 0
/proc/21000/statm: 728 607 61 152 0 574 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2912

[startup+0.301172 s]
/proc/loadavg: 0.93 0.98 1.04 2/64 21000
/proc/meminfo: memFree=1828216/2055920 swapFree=4175732/4192956
[pid=21000] ppid=20998 vsize=2912 CPUtime=0.29
/proc/21000/stat : 21000 (picosat) R 20998 21000 20477 0 -1 4194304 624 0 0 0 29 0 0 0 19 0 1 0 1144512931 2981888 609 1992294400 134512640 135137933 4294956224 18446744073709551615 134548661 0 0 4096 0 0 0 0 17 1 0 0
/proc/21000/statm: 728 609 61 152 0 574 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2912

[startup+0.70123 s]
/proc/loadavg: 0.93 0.98 1.04 2/64 21000
/proc/meminfo: memFree=1828216/2055920 swapFree=4175732/4192956
[pid=21000] ppid=20998 vsize=2912 CPUtime=0.69
/proc/21000/stat : 21000 (picosat) R 20998 21000 20477 0 -1 4194304 626 0 0 0 69 0 0 0 23 0 1 0 1144512931 2981888 611 1992294400 134512640 135137933 4294956224 18446744073709551615 134527837 0 0 4096 0 0 0 0 17 1 0 0
/proc/21000/statm: 728 611 61 152 0 574 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2912

[startup+1.50135 s]
/proc/loadavg: 0.93 0.98 1.04 2/65 21001
/proc/meminfo: memFree=1826032/2055920 swapFree=4175732/4192956
[pid=21000] ppid=20998 vsize=3176 CPUtime=1.49
/proc/21000/stat : 21000 (picosat) R 20998 21000 20477 0 -1 4194304 700 0 0 0 149 0 0 0 25 0 1 0 1144512931 3252224 685 1992294400 134512640 135137933 4294956224 18446744073709551615 134548828 0 0 4096 0 0 0 0 17 1 0 0
/proc/21000/statm: 794 685 69 152 0 640 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3176

[startup+3.10158 s]
/proc/loadavg: 0.94 0.98 1.03 2/65 21001
/proc/meminfo: memFree=1825200/2055920 swapFree=4175732/4192956
[pid=21000] ppid=20998 vsize=4112 CPUtime=3.09
/proc/21000/stat : 21000 (picosat) R 20998 21000 20477 0 -1 4194304 942 0 0 0 309 0 0 0 25 0 1 0 1144512931 4210688 927 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/21000/statm: 1028 927 69 152 0 874 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4112

[startup+6.30104 s]
/proc/loadavg: 0.94 0.98 1.03 2/65 21001
/proc/meminfo: memFree=1822704/2055920 swapFree=4175732/4192956
[pid=21000] ppid=20998 vsize=6752 CPUtime=6.29
/proc/21000/stat : 21000 (picosat) R 20998 21000 20477 0 -1 4194304 1582 0 0 0 628 1 0 0 25 0 1 0 1144512931 6914048 1567 1992294400 134512640 135137933 4294956224 18446744073709551615 134547969 0 0 4096 0 0 0 0 17 1 0 0
/proc/21000/statm: 1688 1567 69 152 0 1534 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 6752

[startup+12.702 s]
/proc/loadavg: 0.95 0.98 1.03 2/65 21001
/proc/meminfo: memFree=1818672/2055920 swapFree=4175732/4192956
[pid=21000] ppid=20998 vsize=10052 CPUtime=12.69
/proc/21000/stat : 21000 (picosat) R 20998 21000 20477 0 -1 4194304 2410 0 0 0 1267 2 0 0 25 0 1 0 1144512931 10293248 2384 1992294400 134512640 135137933 4294956224 18446744073709551615 134552176 0 0 4096 0 0 0 0 17 1 0 0
/proc/21000/statm: 2513 2384 69 152 0 2359 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 10052

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

[startup+14.3052 s]
/proc/loadavg: 0.95 0.98 1.03 2/65 21001
/proc/meminfo: memFree=1818672/2055920 swapFree=4175732/4192956
[pid=21000] ppid=20998 vsize=10052 CPUtime=14.29
/proc/21000/stat : 21000 (picosat) R 20998 21000 20477 0 -1 4194304 2410 0 0 0 1427 2 0 0 25 0 1 0 1144512931 10293248 2384 1992294400 134512640 135137933 4294956224 18446744073709551615 134522751 0 0 4096 0 0 0 0 17 1 0 0
/proc/21000/statm: 2513 2384 69 152 0 2359 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 10052

[startup+15.9014 s]
/proc/loadavg: 0.95 0.98 1.03 2/65 21001
/proc/meminfo: memFree=1818672/2055920 swapFree=4175732/4192956
[pid=21000] ppid=20998 vsize=10052 CPUtime=15.89
/proc/21000/stat : 21000 (picosat) R 20998 21000 20477 0 -1 4194304 2410 0 0 0 1587 2 0 0 25 0 1 0 1144512931 10293248 2384 1992294400 134512640 135137933 4294956224 18446744073709551615 134552026 0 0 4096 0 0 0 0 17 1 0 0
/proc/21000/statm: 2513 2384 69 152 0 2359 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 10052

[startup+16.7015 s]
/proc/loadavg: 0.95 0.98 1.03 2/65 21001
/proc/meminfo: memFree=1818672/2055920 swapFree=4175732/4192956
[pid=21000] ppid=20998 vsize=10052 CPUtime=16.69
/proc/21000/stat : 21000 (picosat) R 20998 21000 20477 0 -1 4194304 2411 0 0 0 1667 2 0 0 25 0 1 0 1144512931 10293248 2385 1992294400 134512640 135137933 4294956224 18446744073709551615 134548570 0 0 4096 0 0 0 0 17 1 0 0
/proc/21000/statm: 2513 2385 69 152 0 2359 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 10052

[startup+16.9016 s]
/proc/loadavg: 0.95 0.98 1.03 2/65 21001
/proc/meminfo: memFree=1818672/2055920 swapFree=4175732/4192956
[pid=21000] ppid=20998 vsize=10052 CPUtime=16.89
/proc/21000/stat : 21000 (picosat) R 20998 21000 20477 0 -1 4194304 2412 0 0 0 1687 2 0 0 25 0 1 0 1144512931 10293248 2386 1992294400 134512640 135137933 4294956224 18446744073709551615 134527737 0 0 4096 0 0 0 0 17 1 0 0
/proc/21000/statm: 2513 2386 69 152 0 2359 0
Current children cumulated CPU time (s) 16.89
Current children cumulated vsize (KiB) 10052

Child status: 20
Real time (s): 16.9792
CPU time (s): 16.9724
CPU user time (s): 16.9484
CPU system time (s): 0.023996
CPU usage (%): 99.9601
Max. virtual memory (cumulated for all children) (KiB): 10052

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.9484
system time used= 0.023996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2417
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= 22

runsolver used 0.015997 second user time and 0.046992 second system time

The end

Launcher Data 

Begin job on node30 at 2009-04-03 02:27:57
IDJOB=1553777
IDBENCH=70768
IDSOLVER=506
FILE ID=node30/1553777-1238718477
PBS_JOBID= 9085316
Free space on /tmp= 66340 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT09/APPLICATIONS/bitverif/minandmaxor/minandmaxor032.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553777-1238718477/watcher-1553777-1238718477 -o /tmp/evaluation-result-1553777-1238718477/solver-1553777-1238718477 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1553777-1238718477.cnf

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

MD5SUM BENCH= 25c7914ccc82f6f574febbd03924feed
RANDOM SEED=825969580

node30.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		: 3000.260
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	: 5931.00
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		: 3000.260
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:       1828696 kB
Buffers:         46020 kB
Cached:          89400 kB
SwapCached:      11052 kB
Active:          14124 kB
Inactive:       134296 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1828696 kB
SwapTotal:     4192956 kB
SwapFree:      4175732 kB
Dirty:            1620 kB
Writeback:           0 kB
Mapped:          18688 kB
Slab:            64884 kB
Committed_AS:  3375144 kB
PageTables:       1368 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= 66336 MiB
End job on node30 at 2009-04-03 02:28:14