Trace number 458178

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_v2 2007-03-23SAT 33.6729 33.6839

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110975832.opb
MD5SUM1db724dea2682aeae2b8138d40ef319b
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.028994
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
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 1149
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/458178-1178619682/instance-458178-1178619682.opb ......
33.58/33.67	c done parsing opb.
33.58/33.67	s SATISFIABLE
33.58/33.68	c Total Run Time					33.6659
33.58/33.68	v -x1 -x10 -x100 -x101 -x102 -x103 -x104 x105 -x106 -x107 -x108 -x109 -x11 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118
33.58/33.68	v -x119 -x12 -x120 x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x13 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137
33.58/33.68	v -x138 x139 -x14 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x15 -x150 -x151 -x152 -x153 x154 -x155 -x156
33.58/33.68	v -x157 x158 -x159 -x16 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x17 -x18 -x19 -x2 x20 -x21 -x22 -x23 -x24
33.58/33.68	v -x25 -x26 -x27 -x28 -x29 x3 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 x39 -x4 -x40 -x41 -x42 -x43 -x44 -x45 -x46 x47 -x48 -x49
33.58/33.68	v -x5 -x50 -x51 -x52 -x53 -x54 -x55 -x56 -x57 x58 -x59 -x6 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x7 -x70 -x71 -x72 -x73
33.58/33.68	v -x74 -x75 -x76 x77 -x78 -x79 -x8 -x80 -x81 -x82 -x83 -x84 -x85 -x86 -x87 x88 -x89 -x9 -x90 -x91 -x92 -x93 -x94 -x95 x96 -x97 -x98
33.58/33.68	v -x99

Verifier Data (download as text)

OK	0

Conversion Script Data (download as text)

/tmp/evaluation/458178-1178619682/instance-458178-1178619682.opb is already a linear file

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node41/watcher-458178-1178619682 -o ROOT/results/node41/solver-458178-1178619682 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458178-1178619682/instance-458178-1178619682.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: 0.97 0.97 0.99 3/77 24751
/proc/meminfo: memFree=1502856/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=1320 CPUtime=0
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 309880095 1351680 123 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 330 123 90 219 0 107 0

[startup+0.0766359 s]
/proc/loadavg: 0.97 0.97 0.99 3/77 24751
/proc/meminfo: memFree=1502856/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=1452 CPUtime=0.07
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 185 0 0 0 7 0 0 0 18 0 1 0 309880095 1486848 167 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 363 167 90 219 0 140 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1452

[startup+0.101637 s]
/proc/loadavg: 0.97 0.97 0.99 3/77 24751
/proc/meminfo: memFree=1502856/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=1452 CPUtime=0.1
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 207 0 0 0 10 0 0 0 18 0 1 0 309880095 1486848 189 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 363 189 90 219 0 140 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1452

[startup+0.301655 s]
/proc/loadavg: 0.97 0.97 0.99 3/77 24751
/proc/meminfo: memFree=1502856/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=2388 CPUtime=0.29
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 331 0 0 0 29 0 0 0 20 0 1 0 309880095 2445312 313 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 597 313 90 219 0 374 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2388

[startup+0.701691 s]
/proc/loadavg: 0.97 0.97 0.99 3/77 24751
/proc/meminfo: memFree=1502856/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=3608 CPUtime=0.69
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 547 0 0 0 69 0 0 0 24 0 1 0 309880095 3694592 529 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 902 529 90 219 0 679 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3608

[startup+1.50276 s]
/proc/loadavg: 0.97 0.97 0.99 2/78 24752
/proc/meminfo: memFree=1500544/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=5980 CPUtime=1.49
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 939 0 0 0 148 1 0 0 25 0 1 0 309880095 6123520 872 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 1495 872 90 219 0 1272 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5980

[startup+3.1019 s]
/proc/loadavg: 0.97 0.97 0.99 2/78 24752
/proc/meminfo: memFree=1498688/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=6900 CPUtime=3.09
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 1499 0 0 0 307 2 0 0 25 0 1 0 309880095 7065600 1335 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544711 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 1725 1335 90 219 0 1502 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6900

[startup+6.30118 s]
/proc/loadavg: 0.97 0.97 0.99 2/78 24752
/proc/meminfo: memFree=1495752/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=11400 CPUtime=6.29
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 2136 0 0 0 626 3 0 0 25 0 1 0 309880095 11673600 1972 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 2850 1972 90 219 0 2627 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11400

[startup+12.7017 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 24752
/proc/meminfo: memFree=1491464/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=13316 CPUtime=12.68
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 3327 0 0 0 1262 6 0 0 25 0 1 0 309880095 13635584 2970 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 3329 2970 90 219 0 3106 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 13316

[startup+25.5018 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 24752
/proc/meminfo: memFree=1489160/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=16240 CPUtime=25.48
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 4225 0 0 0 2538 10 0 0 25 0 1 0 309880095 16629760 3483 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 4060 3483 90 219 0 3837 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 16240

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

[startup+28.7011 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 24752
/proc/meminfo: memFree=1488648/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=16596 CPUtime=28.68
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 4345 0 0 0 2857 11 0 0 25 0 1 0 309880095 16994304 3603 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544811 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 4149 3603 90 219 0 3926 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 16596

[startup+31.9054 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 24752
/proc/meminfo: memFree=1488200/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=16956 CPUtime=31.89
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 4437 0 0 0 3177 12 0 0 25 0 1 0 309880095 17362944 3695 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 4239 3695 90 219 0 4016 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 16956

[startup+32.7015 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 24752
/proc/meminfo: memFree=1488200/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=16956 CPUtime=32.68
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 4454 0 0 0 3256 12 0 0 25 0 1 0 309880095 17362944 3712 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 4239 3712 90 219 0 4016 0
Current children cumulated CPU time (s) 32.68
Current children cumulated vsize (KiB) 16956

[startup+33.1015 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 24752
/proc/meminfo: memFree=1488072/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=16956 CPUtime=33.08
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 4464 0 0 0 3296 12 0 0 25 0 1 0 309880095 17362944 3722 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 4239 3722 90 219 0 4016 0
Current children cumulated CPU time (s) 33.08
Current children cumulated vsize (KiB) 16956

[startup+33.5015 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 24752
/proc/meminfo: memFree=1488072/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=17192 CPUtime=33.48
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 4538 0 0 0 3335 13 0 0 25 0 1 0 309880095 17604608 3796 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 4298 3796 90 219 0 4075 0
Current children cumulated CPU time (s) 33.48
Current children cumulated vsize (KiB) 17192

[startup+33.6016 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 24752
/proc/meminfo: memFree=1488072/2055920 swapFree=4169412/4192956
[pid=24751] ppid=24749 vsize=17192 CPUtime=33.58
/proc/24751/stat : 24751 (PBS4_SAT07v2) R 24749 24751 23489 0 -1 4194304 4540 0 0 0 3345 13 0 0 25 0 1 0 309880095 17604608 3798 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544702 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24751/statm: 4298 3798 90 219 0 4075 0
Current children cumulated CPU time (s) 33.58
Current children cumulated vsize (KiB) 17192

Child status: 0
Real time (s): 33.6839
CPU time (s): 33.6729
CPU user time (s): 33.5349
CPU system time (s): 0.137979
CPU usage (%): 99.9674
Max. virtual memory (cumulated for all children) (KiB): 17192

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 33.5349
system time used= 0.137979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4559
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= 708

runsolver used 0.024996 second user time and 0.081987 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Tue May  8 10:21:22 UTC 2007

IDJOB= 458178
IDBENCH= 1255
IDSOLVER= 200
FILE ID= node41/458178-1178619682

PBS_JOBID= 5218237

Free space on /tmp= 66562 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110975832.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458178-1178619682/instance-458178-1178619682.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node41/convwatcher-458178-1178619682 -o ROOT/results/node41/conversion-458178-1178619682 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458178-1178619682/instance-458178-1178619682.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-458178-1178619682 -o ROOT/results/node41/solver-458178-1178619682 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458178-1178619682/instance-458178-1178619682.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  1db724dea2682aeae2b8138d40ef319b

RANDOM SEED= 442846878

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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		: 3000.232
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		: 3000.232
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:       1503328 kB
Buffers:         40472 kB
Cached:         387372 kB
SwapCached:       3072 kB
Active:         142628 kB
Inactive:       309628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1503328 kB
SwapTotal:     4192956 kB
SwapFree:      4169412 kB
Dirty:            2428 kB
Writeback:           0 kB
Mapped:          31936 kB
Slab:            85688 kB
Committed_AS:  8578072 kB
PageTables:       2008 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= 66562 MiB

End job on node41 on Tue May  8 10:21:56 UTC 2007