Trace number 1594652

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
SAT07 reference solver: minisat SAT 2007UNSAT 18.8851 18.8909

General information on the benchmark

NameCRAFTED/sgen/unsat/
sgen1-unsat-73-100.cnf
MD5SUM21a63ce6f14424dbad7bd9e8fb6cd037
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.9497
Satisfiable
(Un)Satisfiability was proved
Number of variables73
Number of clauses156
Sum of the clauses size468
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3156
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 This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  73                                                   |
0.00/0.00	c |  Number of clauses:    156                                                  |
0.00/0.00	c |  Parsing time:         0.00         s                                       |
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 |      73      156      468 |       52        0    nan |  0.000 % |
0.00/0.00	c |       100 |      73      156      468 |       57       67     12 |  0.019 % |
0.00/0.00	c |       251 |      73      156      468 |       62       58     10 |  0.019 % |
0.00/0.00	c |       476 |      73      156      468 |       69       58      9 |  0.019 % |
0.00/0.01	c |       813 |      73      156      468 |       76       62      9 |  0.019 % |
0.00/0.01	c |      1319 |      73      156      468 |       83       96     10 |  0.019 % |
0.00/0.02	c |      2079 |      73      156      468 |       92       71      9 |  0.019 % |
0.00/0.03	c |      3218 |      73      156      468 |      101      100      9 |  0.019 % |
0.00/0.05	c |      4927 |      73      156      468 |      111      103      9 |  0.019 % |
0.00/0.08	c |      7489 |      73      156      468 |      122      123      9 |  0.019 % |
0.09/0.13	c |     11334 |      73      156      468 |      134      133     10 |  0.019 % |
0.19/0.20	c |     17100 |      73      156      468 |      148       96      9 |  0.019 % |
0.29/0.30	c |     25750 |      73      156      468 |      163      167     11 |  0.019 % |
0.39/0.45	c |     38724 |      73      156      468 |      179      154     10 |  0.019 % |
0.69/0.70	c |     58186 |      73      156      468 |      197      116      8 |  0.019 % |
1.00/1.07	c |     87379 |      73      156      468 |      217      154      9 |  0.019 % |
1.60/1.61	c |    131168 |      73      156      468 |      238      234     10 |  0.019 % |
2.39/2.46	c |    196852 |      73      156      468 |      262      144      8 |  0.019 % |
3.69/3.75	c |    295379 |      73      156      468 |      289      181      8 |  0.019 % |
5.79/5.82	c |    443168 |      73      156      468 |      318      193      8 |  0.019 % |
8.79/8.81	c |    664853 |      73      156      468 |      349      295     10 |  0.038 % |
13.19/13.26	c |    997378 |      73      156      468 |      384      330      9 |  0.094 % |
18.79/18.89	c ===============================================================================
18.79/18.89	c restarts              : 22
18.79/18.89	c conflicts             : 1407718        (74561 /sec)
18.79/18.89	c decisions             : 1733627        (1.60 % random) (91823 /sec)
18.79/18.89	c propagations          : 30661161       (1623991 /sec)
18.79/18.89	c conflict literals     : 16696640       (15.14 % deleted)
18.79/18.89	c Memory used           : 1.68 MB
18.79/18.89	c CPU time              : 18.8801 s
18.79/18.89	c 
18.79/18.89	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-1594652-1239279423/watcher-1594652-1239279423 -o /tmp/evaluation-result-1594652-1239279423/solver-1594652-1239279423 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat_noassertions HOME/instance-1594652-1239279423.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: 0.00 0.00 0.00 3/64 31829
/proc/meminfo: memFree=1662328/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=0
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 99 0 0 0 0 0 0 0 18 0 1 0 804834738 1761280 85 1992294400 134512640 135048876 4294956208 18446744073709551615 134546842 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 85 66 130 0 297 0

[startup+0.0106421 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 31829
/proc/meminfo: memFree=1662328/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=0
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 100 0 0 0 0 0 0 0 18 0 1 0 804834738 1761280 86 1992294400 134512640 135048876 4294956208 18446744073709551615 134700109 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 86 66 130 0 297 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1720

[startup+0.101663 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 31829
/proc/meminfo: memFree=1662328/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=0.09
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 101 0 0 0 9 0 0 0 18 0 1 0 804834738 1761280 87 1992294400 134512640 135048876 4294956208 18446744073709551615 134546527 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 87 66 130 0 297 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1720

[startup+0.30169 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 31829
/proc/meminfo: memFree=1662328/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=0.29
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 103 0 0 0 29 0 0 0 19 0 1 0 804834738 1761280 89 1992294400 134512640 135048876 4294956208 18446744073709551615 134548751 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 89 66 130 0 297 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1720

[startup+0.701746 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 31829
/proc/meminfo: memFree=1662328/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=0.69
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 105 0 0 0 69 0 0 0 22 0 1 0 804834738 1761280 91 1992294400 134512640 135048876 4294956208 18446744073709551615 134546842 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 91 66 130 0 297 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1720

[startup+1.50186 s]
/proc/loadavg: 0.08 0.02 0.01 2/65 31830
/proc/meminfo: memFree=1662128/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=1.49
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 109 0 0 0 149 0 0 0 25 0 1 0 804834738 1761280 95 1992294400 134512640 135048876 4294956208 18446744073709551615 134547004 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 95 66 130 0 297 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1720

[startup+3.10109 s]
/proc/loadavg: 0.08 0.02 0.01 2/65 31830
/proc/meminfo: memFree=1662000/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=3.09
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 111 0 0 0 309 0 0 0 25 0 1 0 804834738 1761280 97 1992294400 134512640 135048876 4294956208 18446744073709551615 134552759 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 97 66 130 0 297 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1720

[startup+6.30154 s]
/proc/loadavg: 0.08 0.02 0.01 2/65 31830
/proc/meminfo: memFree=1662000/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=6.29
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 115 0 0 0 629 0 0 0 25 0 1 0 804834738 1761280 101 1992294400 134512640 135048876 4294956208 18446744073709551615 134548770 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 101 66 130 0 297 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1720

[startup+12.7014 s]
/proc/loadavg: 0.22 0.05 0.02 2/65 31830
/proc/meminfo: memFree=1661880/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=12.69
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 121 0 0 0 1269 0 0 0 25 0 1 0 804834738 1761280 107 1992294400 134512640 135048876 4294956208 18446744073709551615 134546799 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 107 66 130 0 297 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1720

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

[startup+15.9019 s]
/proc/loadavg: 0.22 0.05 0.02 2/65 31830
/proc/meminfo: memFree=1661880/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=15.89
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 122 0 0 0 1589 0 0 0 25 0 1 0 804834738 1761280 108 1992294400 134512640 135048876 4294956208 18446744073709551615 134545993 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 108 66 130 0 297 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 1720

[startup+17.5011 s]
/proc/loadavg: 0.28 0.06 0.02 2/65 31830
/proc/meminfo: memFree=1661880/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=17.49
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 122 0 0 0 1749 0 0 0 25 0 1 0 804834738 1761280 108 1992294400 134512640 135048876 4294956208 18446744073709551615 134547143 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 108 66 130 0 297 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 1720

[startup+18.3012 s]
/proc/loadavg: 0.28 0.06 0.02 2/65 31830
/proc/meminfo: memFree=1661880/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=18.29
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 122 0 0 0 1829 0 0 0 25 0 1 0 804834738 1761280 108 1992294400 134512640 135048876 4294956208 18446744073709551615 134552716 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 108 66 130 0 297 0
Current children cumulated CPU time (s) 18.29
Current children cumulated vsize (KiB) 1720

[startup+18.7053 s]
/proc/loadavg: 0.28 0.06 0.02 2/65 31830
/proc/meminfo: memFree=1661880/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=18.69
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 122 0 0 0 1869 0 0 0 25 0 1 0 804834738 1761280 108 1992294400 134512640 135048876 4294956208 18446744073709551615 134551360 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 108 66 130 0 297 0
Current children cumulated CPU time (s) 18.69
Current children cumulated vsize (KiB) 1720

[startup+18.8013 s]
/proc/loadavg: 0.28 0.06 0.02 2/65 31830
/proc/meminfo: memFree=1661880/2055920 swapFree=4179576/4192956
[pid=31829] ppid=31827 vsize=1720 CPUtime=18.79
/proc/31829/stat : 31829 (minisat_noasser) R 31827 31829 31792 0 -1 4194304 122 0 0 0 1879 0 0 0 25 0 1 0 804834738 1761280 108 1992294400 134512640 135048876 4294956208 18446744073709551615 134546708 0 0 4096 3 0 0 0 17 1 0 0
/proc/31829/statm: 430 108 66 130 0 297 0
Current children cumulated CPU time (s) 18.79
Current children cumulated vsize (KiB) 1720

Child status: 20
Real time (s): 18.8909
CPU time (s): 18.8851
CPU user time (s): 18.8801
CPU system time (s): 0.004999
CPU usage (%): 99.9697
Max. virtual memory (cumulated for all children) (KiB): 1720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.8801
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 128
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= 46

runsolver used 0.022996 second user time and 0.043993 second system time

The end

Launcher Data 

Begin job on node49 at 2009-04-09 14:17:03
IDJOB=1594652
IDBENCH=71110
IDSOLVER=556
FILE ID=node49/1594652-1239279423
PBS_JOBID= 9115394
Free space on /tmp= 66524 MiB

SOLVER NAME= SAT07 reference solver: minisat SAT 2007
BENCH NAME= SAT09/CRAFTED/sgen/unsat/sgen1-unsat-73-100.cnf
COMMAND LINE= HOME/minisat_noassertions BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1594652-1239279423/watcher-1594652-1239279423 -o /tmp/evaluation-result-1594652-1239279423/solver-1594652-1239279423 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat_noassertions HOME/instance-1594652-1239279423.cnf

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

MD5SUM BENCH= 21a63ce6f14424dbad7bd9e8fb6cd037
RANDOM SEED=1978501447

node49.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		: 3000.214
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		: 3000.214
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:       1662880 kB
Buffers:         47248 kB
Cached:         293080 kB
SwapCached:       6812 kB
Active:          76040 kB
Inactive:       273288 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1662880 kB
SwapTotal:     4192956 kB
SwapFree:      4179576 kB
Dirty:            1488 kB
Writeback:           0 kB
Mapped:          14092 kB
Slab:            29588 kB
Committed_AS:  2674096 kB
PageTables:       1384 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= 66520 MiB
End job on node49 at 2009-04-09 14:17:22