Trace number 40933

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
PBS 4.1LSAT 33.3349 33.3504

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 benchmark0.013997
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	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00	c Solving ROOT/tmp/node7/40933-1149212397/instance-40933-1149212397.opb ......
33.34	c done parsing opb.
33.34	s SATISFIABLE
33.34	c Total Run Time					33.3289
33.34	v -x1 -x10 -x100 -x101 -x102 -x103 -x104 x105 -x106 -x107 -x108 -x109 -x11 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118
33.34	v -x119 -x12 -x120 x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x13 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137
33.34	v -x138 x139 -x14 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x15 -x150 -x151 -x152 -x153 x154 -x155 -x156
33.34	v -x157 x158 -x159 -x16 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x17 -x18 -x19 -x2 x20 -x21 -x22 -x23 -x24
33.34	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
33.34	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
33.34	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
33.34	v -x99

Verifier Data (download as text)

OK	0

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node7/watcher-40933-1149212397 -o ROOT/results/node7/solver-40933-1149212397 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node7/40933-1149212397/instance-40933-1149212397.opb 302849552 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.73 0.87 0.88 2/64 852
/proc/meminfo: memFree=1511840/2055920 swapFree=4181500/4192956
[pid=852] ppid=850 vsize=1368 CPUtime=0
/proc/852/stat : 852 (PBS4L) D 850 852 807 0 -1 4194304 111 0 0 0 0 0 0 0 19 0 1 0 186901857 1400832 95 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135132864 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/852/statm: 342 95 84 232 0 107 0

[startup+10.0029 s]
/proc/loadavg: 0.77 0.87 0.88 2/64 852
/proc/meminfo: memFree=1502240/2055920 swapFree=4181500/4192956
[pid=852] ppid=850 vsize=12932 CPUtime=9.99
/proc/852/stat : 852 (PBS4L) R 850 852 807 0 -1 4194304 2846 0 0 0 994 5 0 0 25 0 1 0 186901857 13242368 2487 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134552026 0 0 4096 0 0 0 0 17 1 0 0
/proc/852/statm: 3233 2487 105 232 0 2998 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 12932

[startup+20.01 s]
/proc/loadavg: 0.81 0.87 0.88 2/64 852
/proc/meminfo: memFree=1498976/2055920 swapFree=4181500/4192956
[pid=852] ppid=850 vsize=15676 CPUtime=19.99
/proc/852/stat : 852 (PBS4L) R 850 852 807 0 -1 4194304 4019 0 0 0 1991 8 0 0 25 0 1 0 186901857 16052224 3275 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134552026 0 0 4096 0 0 0 0 17 1 0 0
/proc/852/statm: 3919 3275 105 232 0 3684 0
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (Kb) 15676

[startup+30.016 s]
/proc/loadavg: 0.84 0.88 0.88 2/64 852
/proc/meminfo: memFree=1497568/2055920 swapFree=4181500/4192956
[pid=852] ppid=850 vsize=16804 CPUtime=30
/proc/852/stat : 852 (PBS4L) R 850 852 807 0 -1 4194304 4399 0 0 0 2989 11 0 0 25 0 1 0 186901857 17207296 3655 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135140097 0 0 4096 0 0 0 0 17 1 0 0
/proc/852/statm: 4201 3655 105 232 0 3966 0
Current children cumulated CPU time (s) 30
Current children cumulated vsize (Kb) 16804

Child status: 0
Real time (s): 33.3504
CPU time (s): 33.3349
CPU user time (s): 33.2169
CPU system time (s): 0.117982
CPU usage (%): 99.9535
Max. virtual memory (cumulated for all children) (Kb): 16804

Launcher Data (download as text)

Begin job on node7 on Fri Jun  2 01:39:57 UTC 2006


FILE ID= 40933-1149212397

PBS_JOBID= 294293

BENCH NAME= ROOT/tmp/node7/40933-1149212397/instance-40933-1149212397.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node7/40933-1149212397/instance-40933-1149212397.opb 302849552
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node7/watcher-40933-1149212397 -o ROOT/results/node7/solver-40933-1149212397 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node7/40933-1149212397/instance-40933-1149212397.opb 302849552

MD5SUM SOLVER= ab46593c31a6a47b9d9920387a00d332
MD5SUM BENCH=  1db724dea2682aeae2b8138d40ef319b

RANDOM SEED= 302849552


/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:       1512048 kB
Buffers:         31340 kB
Cached:         441164 kB
SwapCached:       3564 kB
Active:         189436 kB
Inactive:       292164 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1512048 kB
SwapTotal:     4192956 kB
SwapFree:      4181500 kB
Dirty:             120 kB
Writeback:           0 kB
Mapped:          14960 kB
Slab:            48264 kB
Committed_AS:   176568 kB
PageTables:       1480 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node7 on Fri Jun  2 01:40:30 UTC 2006