Trace number 311022

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 59.096 59.1188

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1239472001-19-UNSAT.cnf
MD5SUM914d3e80d7a891b747d01777ed9ce8d7
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.2419
Satisfiable
(Un)Satisfiability was proved
Number of variables1294
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
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 ...
0.00/0.02	c Restarting after 101 conflicts
0.00/0.04	c Restarting after 251 conflicts
0.00/0.07	c Restarting after 476 conflicts
0.10/0.10	c Restarting after 813 conflicts
0.10/0.17	c Restarting after 1319 conflicts
0.20/0.27	c Restarting after 2079 conflicts
0.41/0.42	c Restarting after 3218 conflicts
0.61/0.67	c Restarting after 4926 conflicts
1.02/1.02	c Restarting after 7488 conflicts
1.53/1.58	c Restarting after 11332 conflicts
2.45/2.46	c Restarting after 17098 conflicts
3.68/3.76	c Restarting after 25749 conflicts
5.73/5.82	c Restarting after 38723 conflicts
8.90/8.98	c Restarting after 58186 conflicts
13.82/13.88	c Restarting after 87380 conflicts
21.39/21.42	c Restarting after 131169 conflicts
33.06/33.10	c Restarting after 196854 conflicts
50.79/50.81	c Restarting after 295382 conflicts
59.08/59.11	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node9/watcher-311022-1172563892 -o ROOT/results/node9/solver-311022-1172563892 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311022-1172563892/sat7_bin /tmp/evaluation/311022-1172563892/instance-311022-1172563892.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.92 0.98 0.99 3/77 20886
/proc/meminfo: memFree=1564992/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=1256 CPUtime=0
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 164 0 0 0 0 0 0 0 18 0 1 0 276343832 1286144 147 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134847868 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 314 148 87 220 0 91 0

[startup+0.10661 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 20886
/proc/meminfo: memFree=1564992/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=1660 CPUtime=0.1
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 263 0 0 0 10 0 0 0 18 0 1 0 276343832 1699840 246 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532620 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 415 246 95 220 0 192 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1660

[startup+0.514688 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 20886
/proc/meminfo: memFree=1564992/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=2176 CPUtime=0.51
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 326 0 0 0 51 0 0 0 22 0 1 0 276343832 2228224 309 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532514 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 544 309 95 220 0 321 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2176

[startup+1.33485 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 20887
/proc/meminfo: memFree=1564024/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=2176 CPUtime=1.33
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 366 0 0 0 133 0 0 0 25 0 1 0 276343832 2228224 349 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532694 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 544 349 95 220 0 321 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2176

[startup+2.97416 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 20887
/proc/meminfo: memFree=1563768/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=3204 CPUtime=2.97
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 426 0 0 0 297 0 0 0 25 0 1 0 276343832 3280896 409 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532469 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 801 409 95 220 0 578 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 3204

[startup+6.25179 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 20887
/proc/meminfo: memFree=1563320/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=3204 CPUtime=6.24
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 480 0 0 0 624 0 0 0 25 0 1 0 276343832 3280896 463 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532412 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 801 463 95 220 0 578 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 3204

[startup+12.704 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 20887
/proc/meminfo: memFree=1562936/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=3340 CPUtime=12.69
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 561 0 0 0 1269 0 0 0 25 0 1 0 276343832 3420160 544 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532571 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 835 544 95 220 0 612 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3340

[startup+25.5085 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 20887
/proc/meminfo: memFree=1562552/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=3472 CPUtime=25.49
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 665 0 0 0 2549 0 0 0 25 0 1 0 276343832 3555328 648 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134528665 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 868 648 95 220 0 645 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3472

[startup+51.1175 s]
/proc/loadavg: 0.96 0.98 0.99 2/78 20887
/proc/meminfo: memFree=1562104/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=3604 CPUtime=51.09
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 780 0 0 0 5108 1 0 0 25 0 1 0 276343832 3690496 763 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134528610 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 901 763 95 220 0 678 0
Current children cumulated CPU time (s) 51.09
Current children cumulated vsize (KiB) 3604

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

[startup+52.4477 s]
/proc/loadavg: 0.96 0.98 0.99 2/78 20887
/proc/meminfo: memFree=1562104/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=5656 CPUtime=52.42
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 784 0 0 0 5241 1 0 0 25 0 1 0 276343832 5791744 767 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 135029294 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 1414 767 95 220 0 1191 0
Current children cumulated CPU time (s) 52.42
Current children cumulated vsize (KiB) 5656

[startup+55.7273 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 20887
/proc/meminfo: memFree=1562040/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=5788 CPUtime=55.7
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 801 0 0 0 5569 1 0 0 25 0 1 0 276343832 5926912 784 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532383 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 1447 784 95 220 0 1224 0
Current children cumulated CPU time (s) 55.7
Current children cumulated vsize (KiB) 5788

[startup+57.3637 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 20887
/proc/meminfo: memFree=1561976/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=5788 CPUtime=57.34
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 804 0 0 0 5733 1 0 0 25 0 1 0 276343832 5926912 787 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134528750 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 1447 787 95 220 0 1224 0
Current children cumulated CPU time (s) 57.34
Current children cumulated vsize (KiB) 5788

[startup+58.1838 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 20887
/proc/meminfo: memFree=1561976/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=5788 CPUtime=58.16
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 805 0 0 0 5815 1 0 0 25 0 1 0 276343832 5926912 788 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134578668 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 1447 788 95 220 0 1224 0
Current children cumulated CPU time (s) 58.16
Current children cumulated vsize (KiB) 5788

[startup+58.5919 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 20887
/proc/meminfo: memFree=1561976/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=5788 CPUtime=58.57
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 805 0 0 0 5856 1 0 0 25 0 1 0 276343832 5926912 788 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134529572 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 1447 788 95 220 0 1224 0
Current children cumulated CPU time (s) 58.57
Current children cumulated vsize (KiB) 5788

[startup+59.007 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 20887
/proc/meminfo: memFree=1561976/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=5788 CPUtime=58.98
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 806 0 0 0 5897 1 0 0 25 0 1 0 276343832 5926912 789 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 135029303 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 1447 789 95 220 0 1224 0
Current children cumulated CPU time (s) 58.98
Current children cumulated vsize (KiB) 5788

[startup+59.109 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 20887
/proc/meminfo: memFree=1561976/2055920 swapFree=4192812/4192956
[pid=20886] ppid=20884 vsize=5788 CPUtime=59.08
/proc/20886/stat : 20886 (sat7_bin) R 20884 20886 19488 0 -1 4194304 806 0 0 0 5907 1 0 0 25 0 1 0 276343832 5926912 789 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532629 0 0 4096 0 0 0 0 17 1 0 0
/proc/20886/statm: 1447 789 95 220 0 1224 0
Current children cumulated CPU time (s) 59.08
Current children cumulated vsize (KiB) 5788

Child status: 20
Real time (s): 59.1188
CPU time (s): 59.096
CPU user time (s): 59.082
CPU system time (s): 0.013997
CPU usage (%): 99.9615
Max. virtual memory (cumulated for all children) (KiB): 5788

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 59.082
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 806
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= 1208

runsolver used 0.085986 second user time and 0.12898 second system time

The end

Launcher Data (download as text)

Begin job on node9 on Tue Feb 27 08:11:32 UTC 2007

IDJOB= 311022
IDBENCH= 20303
IDSOLVER= 101
FILE ID= node9/311022-1172563892

PBS_JOBID= 3971658

Free space on /tmp= 66559 MiB

SOLVER NAME= SAT7 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1239472001-19-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/311022-1172563892/sat7_bin /tmp/evaluation/311022-1172563892/instance-311022-1172563892.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-311022-1172563892 -o ROOT/results/node9/solver-311022-1172563892 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311022-1172563892/sat7_bin /tmp/evaluation/311022-1172563892/instance-311022-1172563892.cnf            

META MD5SUM SOLVER= 499b432f7af158d8586c91b2e490220f
MD5SUM BENCH=  914d3e80d7a891b747d01777ed9ce8d7

RANDOM SEED= 940030422

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node9.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		: 3000.263
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		: 3000.263
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:       1565464 kB
Buffers:         52324 kB
Cached:         313176 kB
SwapCached:          0 kB
Active:         260744 kB
Inactive:       159452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1565464 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1280 kB
Writeback:           0 kB
Mapped:          73596 kB
Slab:            55852 kB
Committed_AS:  1225272 kB
PageTables:       1688 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= 66559 MiB

End job on node9 on Tue Feb 27 08:12:31 UTC 2007