Trace number 357901

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
PBS4 2007-03-23UNSAT 21.1028 21.1158

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110970631.opb
MD5SUM0cb3829d9e744bc52975d342468bb866
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.067989
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1320
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/357901-1176902503/instance-357901-1176902503.opb ......
21.07/21.11	c done parsing opb.
21.07/21.11	s UNSATISFIABLE
21.07/21.11	c Total Run Time					21.0968

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/357901-1176902503/instance-357901-1176902503.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node45/watcher-357901-1176902503 -o ROOT/results/node45/solver-357901-1176902503 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/357901-1176902503/PBS4 /tmp/evaluation/357901-1176902503/instance-357901-1176902503.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 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: 0.78 0.94 0.98 3/77 23121
/proc/meminfo: memFree=1512840/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=1320 CPUtime=0
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 45095903 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 330 125 92 219 0 107 0

[startup+0.034543 s]
/proc/loadavg: 0.78 0.94 0.98 3/77 23121
/proc/meminfo: memFree=1512840/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=1320 CPUtime=0.03
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 162 0 0 0 3 0 0 0 18 0 1 0 45095903 1351680 144 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 330 144 92 219 0 107 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1320

[startup+0.101551 s]
/proc/loadavg: 0.78 0.94 0.98 3/77 23121
/proc/meminfo: memFree=1512840/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=1460 CPUtime=0.09
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 208 0 0 0 9 0 0 0 18 0 1 0 45095903 1495040 190 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 365 190 92 219 0 142 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1460

[startup+0.301571 s]
/proc/loadavg: 0.78 0.94 0.98 3/77 23121
/proc/meminfo: memFree=1512840/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=1872 CPUtime=0.29
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 313 0 0 0 29 0 0 0 19 0 1 0 45095903 1916928 295 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 468 295 93 219 0 245 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1872

[startup+0.701611 s]
/proc/loadavg: 0.78 0.94 0.98 3/77 23121
/proc/meminfo: memFree=1512840/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=2580 CPUtime=0.69
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 494 0 0 0 69 0 0 0 22 0 1 0 45095903 2641920 476 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 645 476 93 219 0 422 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2580

[startup+1.50169 s]
/proc/loadavg: 0.78 0.94 0.98 2/78 23122
/proc/meminfo: memFree=1510656/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=3928 CPUtime=1.49
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 851 0 0 0 148 1 0 0 25 0 1 0 45095903 4022272 784 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135006597 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 982 784 94 219 0 759 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3928

[startup+3.10186 s]
/proc/loadavg: 0.78 0.94 0.98 2/78 23122
/proc/meminfo: memFree=1509120/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=6760 CPUtime=3.08
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 1375 0 0 0 306 2 0 0 25 0 1 0 45095903 6922240 1211 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134548477 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 1690 1211 94 219 0 1467 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 6760

[startup+6.30118 s]
/proc/loadavg: 0.79 0.94 0.98 2/78 23122
/proc/meminfo: memFree=1506240/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=11544 CPUtime=6.28
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 2005 0 0 0 624 4 0 0 25 0 1 0 45095903 11821056 1841 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 2886 1841 94 219 0 2663 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 11544

[startup+12.7018 s]
/proc/loadavg: 0.81 0.94 0.98 2/78 23122
/proc/meminfo: memFree=1503240/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=13280 CPUtime=12.68
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 2892 0 0 0 1262 6 0 0 25 0 1 0 45095903 13598720 2535 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 3320 2535 94 219 0 3097 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 13280

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

[startup+15.9012 s]
/proc/loadavg: 0.83 0.94 0.98 3/78 23122
/proc/meminfo: memFree=1502408/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=13552 CPUtime=15.88
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 3021 0 0 0 1580 8 0 0 25 0 1 0 45095903 13877248 2664 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 3388 2664 94 219 0 3165 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 13552

[startup+19.1015 s]
/proc/loadavg: 0.83 0.94 0.98 2/78 23122
/proc/meminfo: memFree=1501704/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=15740 CPUtime=19.08
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 3582 0 0 0 1899 9 0 0 25 0 1 0 45095903 16117760 2840 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 3935 2840 94 219 0 3712 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 15740

[startup+19.9016 s]
/proc/loadavg: 0.84 0.94 0.98 2/78 23122
/proc/meminfo: memFree=1501576/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=15740 CPUtime=19.88
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 3599 0 0 0 1979 9 0 0 25 0 1 0 45095903 16117760 2857 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 3935 2857 94 219 0 3712 0
Current children cumulated CPU time (s) 19.88
Current children cumulated vsize (KiB) 15740

[startup+20.7017 s]
/proc/loadavg: 0.84 0.94 0.98 2/78 23122
/proc/meminfo: memFree=1501576/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=15740 CPUtime=20.68
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 3612 0 0 0 2059 9 0 0 25 0 1 0 45095903 16117760 2870 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547346 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 3935 2870 94 219 0 3712 0
Current children cumulated CPU time (s) 20.68
Current children cumulated vsize (KiB) 15740

[startup+21.1017 s]
/proc/loadavg: 0.84 0.94 0.98 2/78 23122
/proc/meminfo: memFree=1501512/2055920 swapFree=4148536/4192956
[pid=23121] ppid=23119 vsize=15740 CPUtime=21.07
/proc/23121/stat : 23121 (PBS4) R 23119 23121 21457 0 -1 4194304 3618 0 0 0 2098 9 0 0 25 0 1 0 45095903 16117760 2876 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547546 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23121/statm: 3935 2876 94 219 0 3712 0
Current children cumulated CPU time (s) 21.07
Current children cumulated vsize (KiB) 15740

Child status: 0
Real time (s): 21.1158
CPU time (s): 21.1028
CPU user time (s): 21.0008
CPU system time (s): 0.101984
CPU usage (%): 99.9382
Max. virtual memory (cumulated for all children) (KiB): 15740

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.0008
system time used= 0.101984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3633
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= 47

runsolver used 0.025996 second user time and 0.057991 second system time

The end

Launcher Data (download as text)

Begin job on node45 on Wed Apr 18 13:21:43 UTC 2007

IDJOB= 357901
IDBENCH= 1176
IDSOLVER= 157
FILE ID= node45/357901-1176902503

PBS_JOBID= 4595162

Free space on /tmp= 66446 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110970631.opb
COMMAND LINE= /tmp/evaluation/357901-1176902503/PBS4 /tmp/evaluation/357901-1176902503/instance-357901-1176902503.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node45/convwatcher-357901-1176902503 -o ROOT/results/node45/conversion-357901-1176902503 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/357901-1176902503/instance-357901-1176902503.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node45/watcher-357901-1176902503 -o ROOT/results/node45/solver-357901-1176902503 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/357901-1176902503/PBS4 /tmp/evaluation/357901-1176902503/instance-357901-1176902503.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  0cb3829d9e744bc52975d342468bb866

RANDOM SEED= 990671833

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node45.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		: 3000.218
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		: 3000.218
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:       1513312 kB
Buffers:         25360 kB
Cached:         438696 kB
SwapCached:      24456 kB
Active:          78568 kB
Inactive:       420424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1513312 kB
SwapTotal:     4192956 kB
SwapFree:      4148536 kB
Dirty:            1332 kB
Writeback:           0 kB
Mapped:          33224 kB
Slab:            29208 kB
Committed_AS:  1128432 kB
PageTables:       1736 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= 66446 MiB

End job on node45 on Wed Apr 18 13:22:04 UTC 2007