Trace number 426976

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 76.6843 76.7056

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S779175761-20-UNSAT.cnf
MD5SUMe4a16dbebaf749785d32ea7331a934fc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.10637
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.01	c Starting solver ...
0.00/0.01	c Restarting after 100 conflicts
0.00/0.02	c Restarting after 252 conflicts
0.00/0.04	c Restarting after 477 conflicts
0.04/0.06	c Restarting after 815 conflicts
0.10/0.10	c Restarting after 1322 conflicts
0.10/0.16	c Restarting after 2081 conflicts
0.20/0.26	c Restarting after 3221 conflicts
0.39/0.41	c Restarting after 4930 conflicts
0.59/0.63	c Restarting after 7493 conflicts
0.89/0.97	c Restarting after 11337 conflicts
1.39/1.48	c Restarting after 17103 conflicts
2.20/2.28	c Restarting after 25755 conflicts
3.49/3.51	c Restarting after 38730 conflicts
5.29/5.37	c Restarting after 58191 conflicts
8.19/8.26	c Restarting after 87384 conflicts
12.49/12.59	c Restarting after 131174 conflicts
19.39/19.45	c Restarting after 196858 conflicts
29.98/30.01	c Restarting after 295384 conflicts
46.28/46.33	c Restarting after 443175 conflicts
71.17/71.20	c Restarting after 664858 conflicts
76.67/76.70	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node55/watcher-426976-1177831295 -o ROOT/results/node55/solver-426976-1177831295 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/426976-1177831295/sat7_bin /tmp/evaluation/426976-1177831295/instance-426976-1177831295.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 1.14 1.72 1.77 3/64 8417
/proc/meminfo: memFree=1383684/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=1216 CPUtime=0
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 146 0 0 0 0 0 0 0 18 0 1 0 231039549 1245184 130 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134558961 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 304 130 87 220 0 81 0

[startup+0.0485821 s]
/proc/loadavg: 1.14 1.72 1.77 3/64 8417
/proc/meminfo: memFree=1383684/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=1612 CPUtime=0.04
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 203 0 0 0 4 0 0 0 18 0 1 0 231039549 1650688 187 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532412 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 403 187 95 220 0 180 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1612

[startup+0.102597 s]
/proc/loadavg: 1.14 1.72 1.77 3/64 8417
/proc/meminfo: memFree=1383684/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=1612 CPUtime=0.1
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 223 0 0 0 10 0 0 0 18 0 1 0 231039549 1650688 207 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134558995 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 403 207 95 220 0 180 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1612

[startup+0.301605 s]
/proc/loadavg: 1.14 1.72 1.77 3/64 8417
/proc/meminfo: memFree=1383684/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=1612 CPUtime=0.29
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 243 0 0 0 29 0 0 0 19 0 1 0 231039549 1650688 227 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532542 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 403 227 95 220 0 180 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1612

[startup+0.701643 s]
/proc/loadavg: 1.14 1.72 1.77 3/64 8417
/proc/meminfo: memFree=1383684/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=2128 CPUtime=0.69
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 266 0 0 0 69 0 0 0 22 0 1 0 231039549 2179072 250 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134537091 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 532 250 95 220 0 309 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2128

[startup+1.50172 s]
/proc/loadavg: 1.14 1.72 1.77 2/65 8418
/proc/meminfo: memFree=1382972/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=2128 CPUtime=1.49
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 295 0 0 0 149 0 0 0 25 0 1 0 231039549 2179072 279 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134536622 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 532 279 95 220 0 309 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2128

[startup+3.10187 s]
/proc/loadavg: 1.14 1.72 1.77 2/65 8418
/proc/meminfo: memFree=1382716/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=2128 CPUtime=3.09
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 322 0 0 0 309 0 0 0 25 0 1 0 231039549 2179072 306 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134536251 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 532 306 95 220 0 309 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2128

[startup+6.30117 s]
/proc/loadavg: 1.13 1.71 1.77 2/65 8418
/proc/meminfo: memFree=1382460/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=2128 CPUtime=6.29
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 362 0 0 0 629 0 0 0 25 0 1 0 231039549 2179072 346 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134528610 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 532 346 95 220 0 309 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2128

[startup+12.7018 s]
/proc/loadavg: 1.12 1.69 1.76 2/65 8418
/proc/meminfo: memFree=1382148/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=3288 CPUtime=12.69
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 425 0 0 0 1269 0 0 0 25 0 1 0 231039549 3366912 409 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134528658 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 822 409 95 220 0 599 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3288

[startup+25.503 s]
/proc/loadavg: 1.09 1.66 1.75 2/65 8418
/proc/meminfo: memFree=1381892/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=3420 CPUtime=25.49
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 507 0 0 0 2549 0 0 0 25 0 1 0 231039549 3502080 491 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532383 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 855 491 95 220 0 632 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3420

[startup+51.1024 s]
/proc/loadavg: 1.06 1.61 1.73 2/65 8418
/proc/meminfo: memFree=1381444/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=3556 CPUtime=51.08
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 604 0 0 0 5108 0 0 0 25 0 1 0 231039549 3641344 588 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532412 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 889 588 95 220 0 666 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 3556

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

[startup+63.9016 s]
/proc/loadavg: 1.04 1.58 1.71 2/65 8418
/proc/meminfo: memFree=1381316/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=3688 CPUtime=63.88
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 642 0 0 0 6388 0 0 0 25 0 1 0 231039549 3776512 626 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134533566 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 922 626 95 220 0 699 0
Current children cumulated CPU time (s) 63.88
Current children cumulated vsize (KiB) 3688

[startup+70.3012 s]
/proc/loadavg: 1.04 1.57 1.71 2/65 8418
/proc/meminfo: memFree=1381252/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=3688 CPUtime=70.28
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 658 0 0 0 7028 0 0 0 25 0 1 0 231039549 3776512 642 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532383 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 922 642 95 220 0 699 0
Current children cumulated CPU time (s) 70.28
Current children cumulated vsize (KiB) 3688

[startup+73.5016 s]
/proc/loadavg: 1.04 1.57 1.71 2/65 8418
/proc/meminfo: memFree=1381188/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=3688 CPUtime=73.47
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 670 0 0 0 7347 0 0 0 25 0 1 0 231039549 3776512 654 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532481 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 922 654 95 220 0 699 0
Current children cumulated CPU time (s) 73.47
Current children cumulated vsize (KiB) 3688

[startup+75.1017 s]
/proc/loadavg: 1.04 1.56 1.71 2/65 8418
/proc/meminfo: memFree=1381188/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=3688 CPUtime=75.07
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 676 0 0 0 7507 0 0 0 25 0 1 0 231039549 3776512 660 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532412 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 922 660 95 220 0 699 0
Current children cumulated CPU time (s) 75.07
Current children cumulated vsize (KiB) 3688

[startup+75.9058 s]
/proc/loadavg: 1.04 1.56 1.71 2/65 8418
/proc/meminfo: memFree=1381188/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=3688 CPUtime=75.88
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 677 0 0 0 7588 0 0 0 25 0 1 0 231039549 3776512 661 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134536231 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 922 661 95 220 0 699 0
Current children cumulated CPU time (s) 75.88
Current children cumulated vsize (KiB) 3688

[startup+76.3018 s]
/proc/loadavg: 1.04 1.56 1.71 2/65 8418
/proc/meminfo: memFree=1381188/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=3688 CPUtime=76.27
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 677 0 0 0 7627 0 0 0 25 0 1 0 231039549 3776512 661 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134533784 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 922 661 95 220 0 699 0
Current children cumulated CPU time (s) 76.27
Current children cumulated vsize (KiB) 3688

[startup+76.7029 s]
/proc/loadavg: 1.04 1.56 1.71 2/65 8418
/proc/meminfo: memFree=1381188/2055920 swapFree=4184544/4192956
[pid=8417] ppid=8415 vsize=3688 CPUtime=76.67
/proc/8417/stat : 8417 (sat7_bin) R 8415 8417 7421 0 -1 4194304 677 0 0 0 7667 0 0 0 25 0 1 0 231039549 3776512 661 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532381 0 0 4096 0 0 0 0 17 1 0 0
/proc/8417/statm: 922 661 95 220 0 699 0
Current children cumulated CPU time (s) 76.67
Current children cumulated vsize (KiB) 3688

Child status: 20
Real time (s): 76.7056
CPU time (s): 76.6843
CPU user time (s): 76.6783
CPU system time (s): 0.005999
CPU usage (%): 99.9723
Max. virtual memory (cumulated for all children) (KiB): 3688

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 76.6783
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 677
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= 7
involuntary context switches= 137

runsolver used 0.073988 second user time and 0.140978 second system time

The end

Launcher Data (download as text)

Begin job on node55 on Sun Apr 29 07:21:35 UTC 2007

IDJOB= 426976
IDBENCH= 20287
IDSOLVER= 183
FILE ID= node55/426976-1177831295

PBS_JOBID= 4718276

Free space on /tmp= 66563 MiB

SOLVER NAME= SAT7 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S779175761-20-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/426976-1177831295/sat7_bin /tmp/evaluation/426976-1177831295/instance-426976-1177831295.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-426976-1177831295 -o ROOT/results/node55/solver-426976-1177831295 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/426976-1177831295/sat7_bin /tmp/evaluation/426976-1177831295/instance-426976-1177831295.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  e4a16dbebaf749785d32ea7331a934fc

RANDOM SEED= 107473234

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node55.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		: 3000.216
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		: 3000.216
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:       1384092 kB
Buffers:         59552 kB
Cached:         525616 kB
SwapCached:       2556 kB
Active:         315732 kB
Inactive:       279632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1384092 kB
SwapTotal:     4192956 kB
SwapFree:      4184544 kB
Dirty:            1188 kB
Writeback:           0 kB
Mapped:          16576 kB
Slab:            62500 kB
Committed_AS:  1388044 kB
PageTables:       1380 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= 66563 MiB

End job on node55 on Sun Apr 29 07:22:52 UTC 2007