Trace number 316417

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, and are wall clock time (not CPU 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
SAT7 2007-02-08UNSAT 12.858 12.8618

General information on the benchmark

Namecrafted/spence/
medium/s65-100.cnf
MD5SUMc783ce32e47f2d2dd661851cca52c3a7
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.61445
Satisfiable
(Un)Satisfiability was proved
Number of variables65
Number of clauses140
Sum of the clauses size420
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3140
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Starting solver ...
0.00/0.00	c Restarting after 102 conflicts
0.00/0.00	c Restarting after 253 conflicts
0.00/0.01	c Restarting after 479 conflicts
0.00/0.02	c Restarting after 816 conflicts
0.00/0.03	c Restarting after 1323 conflicts
0.03/0.05	c Restarting after 2082 conflicts
0.03/0.07	c Restarting after 3221 conflicts
0.09/0.12	c Restarting after 4929 conflicts
0.09/0.18	c Restarting after 7491 conflicts
0.19/0.27	c Restarting after 11335 conflicts
0.29/0.40	c Restarting after 17102 conflicts
0.59/0.60	c Restarting after 25751 conflicts
0.89/0.93	c Restarting after 38725 conflicts
1.29/1.38	c Restarting after 58186 conflicts
2.00/2.08	c Restarting after 87378 conflicts
3.09/3.18	c Restarting after 131167 conflicts
4.69/4.77	c Restarting after 196851 conflicts
7.09/7.19	c Restarting after 295378 conflicts
10.69/10.76	c Restarting after 443168 conflicts
12.79/12.86	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node67/watcher-316417-1172668870 -o ROOT/results/node67/solver-316417-1172668870 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316417-1172668870/sat7_bin /tmp/evaluation/316417-1172668870/instance-316417-1172668870.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): 2400 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: 1.00 0.98 0.97 3/64 5535
/proc/meminfo: memFree=1851720/2055920 swapFree=4183844/4192956
[pid=5535] ppid=5533 vsize=1068 CPUtime=0
/proc/5535/stat : 5535 (sat7_bin) R 5533 5535 4701 0 -1 4194304 133 0 0 0 0 0 0 0 18 0 1 0 286844583 1093632 116 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134528610 0 0 4096 0 0 0 0 17 1 0 0
/proc/5535/statm: 267 116 95 220 0 44 0

[startup+0.0403279 s]
/proc/loadavg: 1.00 0.98 0.97 3/64 5535
/proc/meminfo: memFree=1851720/2055920 swapFree=4183844/4192956
[pid=5535] ppid=5533 vsize=1068 CPUtime=0.03
/proc/5535/stat : 5535 (sat7_bin) R 5533 5535 4701 0 -1 4194304 136 0 0 0 3 0 0 0 18 0 1 0 286844583 1093632 119 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134533661 0 0 4096 0 0 0 0 17 1 0 0
/proc/5535/statm: 267 119 95 220 0 44 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1068

[startup+0.101327 s]
/proc/loadavg: 1.00 0.98 0.97 3/64 5535
/proc/meminfo: memFree=1851720/2055920 swapFree=4183844/4192956
[pid=5535] ppid=5533 vsize=1068 CPUtime=0.09
/proc/5535/stat : 5535 (sat7_bin) R 5533 5535 4701 0 -1 4194304 138 0 0 0 9 0 0 0 18 0 1 0 286844583 1093632 121 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134528645 0 0 4096 0 0 0 0 17 1 0 0
/proc/5535/statm: 267 121 95 220 0 44 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1068

[startup+0.301347 s]
/proc/loadavg: 1.00 0.98 0.97 3/64 5535
/proc/meminfo: memFree=1851720/2055920 swapFree=4183844/4192956
[pid=5535] ppid=5533 vsize=1068 CPUtime=0.29
/proc/5535/stat : 5535 (sat7_bin) R 5533 5535 4701 0 -1 4194304 140 0 0 0 29 0 0 0 19 0 1 0 286844583 1093632 123 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134528610 0 0 4096 0 0 0 0 17 1 0 0
/proc/5535/statm: 267 123 95 220 0 44 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1068

[startup+0.701389 s]
/proc/loadavg: 1.00 0.98 0.97 3/64 5535
/proc/meminfo: memFree=1851720/2055920 swapFree=4183844/4192956
[pid=5535] ppid=5533 vsize=1068 CPUtime=0.69
/proc/5535/stat : 5535 (sat7_bin) R 5533 5535 4701 0 -1 4194304 144 0 0 0 69 0 0 0 22 0 1 0 286844583 1093632 127 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 135029304 0 0 4096 0 0 0 0 17 1 0 0
/proc/5535/statm: 267 127 95 220 0 44 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1068

[startup+1.50147 s]
/proc/loadavg: 1.00 0.98 0.97 2/65 5536
/proc/meminfo: memFree=1851520/2055920 swapFree=4183844/4192956
[pid=5535] ppid=5533 vsize=1068 CPUtime=1.49
/proc/5535/stat : 5535 (sat7_bin) R 5533 5535 4701 0 -1 4194304 148 0 0 0 149 0 0 0 25 0 1 0 286844583 1093632 131 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134578665 0 0 4096 0 0 0 0 17 1 0 0
/proc/5535/statm: 267 131 95 220 0 44 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1068

[startup+3.10164 s]
/proc/loadavg: 1.00 0.98 0.97 2/65 5536
/proc/meminfo: memFree=1851328/2055920 swapFree=4183844/4192956
[pid=5535] ppid=5533 vsize=1068 CPUtime=3.09
/proc/5535/stat : 5535 (sat7_bin) R 5533 5535 4701 0 -1 4194304 151 0 0 0 309 0 0 0 25 0 1 0 286844583 1093632 134 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134579006 0 0 4096 0 0 0 0 17 1 0 0
/proc/5535/statm: 267 134 95 220 0 44 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1068

[startup+6.30198 s]
/proc/loadavg: 1.00 0.98 0.97 2/65 5536
/proc/meminfo: memFree=1851264/2055920 swapFree=4183844/4192956
[pid=5535] ppid=5533 vsize=1200 CPUtime=6.29
/proc/5535/stat : 5535 (sat7_bin) R 5533 5535 4701 0 -1 4194304 156 0 0 0 629 0 0 0 25 0 1 0 286844583 1228800 139 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134531823 0 0 4096 0 0 0 0 17 1 0 0
/proc/5535/statm: 300 139 95 220 0 77 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1200

[startup+12.7016 s]
/proc/loadavg: 1.00 0.98 0.97 2/65 5536
/proc/meminfo: memFree=1851216/2055920 swapFree=4183844/4192956
[pid=5535] ppid=5533 vsize=1200 CPUtime=12.69
/proc/5535/stat : 5535 (sat7_bin) R 5533 5535 4701 0 -1 4194304 164 0 0 0 1269 0 0 0 25 0 1 0 286844583 1228800 147 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134528656 0 0 4096 0 0 0 0 17 1 0 0
/proc/5535/statm: 300 147 95 220 0 77 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1200

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

[startup+12.8017 s]
/proc/loadavg: 1.00 0.98 0.97 2/65 5536
/proc/meminfo: memFree=1851216/2055920 swapFree=4183844/4192956
[pid=5535] ppid=5533 vsize=1200 CPUtime=12.79
/proc/5535/stat : 5535 (sat7_bin) R 5533 5535 4701 0 -1 4194304 164 0 0 0 1279 0 0 0 25 0 1 0 286844583 1228800 147 18446744073709551615 134512640 135417445 4294956624 18446744073709551615 134565450 0 0 4096 0 0 0 0 17 1 0 0
/proc/5535/statm: 300 147 95 220 0 77 0
Current children cumulated CPU time (s) 12.79
Current children cumulated vsize (KiB) 1200

Child status: 20
Real time (s): 12.8618
CPU time (s): 12.858
CPU user time (s): 12.856
CPU system time (s): 0.001999
CPU usage (%): 99.9706
Max. virtual memory (cumulated for all children) (KiB): 1200

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.856
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 164
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= 8
involuntary context switches= 26

runsolver used 0.008998 second user time and 0.033994 second system time

The end

Launcher Data (download as text)

Begin job on node67 on Wed Feb 28 13:21:10 UTC 2007

IDJOB= 316417
IDBENCH= 20441
IDSOLVER= 101
FILE ID= node67/316417-1172668870

PBS_JOBID= 3981216

Free space on /tmp= 66544 MiB

SOLVER NAME= SAT7 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s65-100.cnf
COMMAND LINE= /tmp/evaluation/316417-1172668870/sat7_bin /tmp/evaluation/316417-1172668870/instance-316417-1172668870.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-316417-1172668870 -o ROOT/results/node67/solver-316417-1172668870 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316417-1172668870/sat7_bin /tmp/evaluation/316417-1172668870/instance-316417-1172668870.cnf            

META MD5SUM SOLVER= 499b432f7af158d8586c91b2e490220f
MD5SUM BENCH=  c783ce32e47f2d2dd661851cca52c3a7

RANDOM SEED= 151001590

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node67.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1852128 kB
Buffers:          6456 kB
Cached:         141608 kB
SwapCached:       2828 kB
Active:          51268 kB
Inactive:       113428 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1852128 kB
SwapTotal:     4192956 kB
SwapFree:      4183844 kB
Dirty:            1148 kB
Writeback:           0 kB
Mapped:          22572 kB
Slab:            25076 kB
Committed_AS:   833148 kB
PageTables:       1472 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= 66544 MiB

End job on node67 on Wed Feb 28 13:21:23 UTC 2007