Trace number 39453

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
bsolo 2006/05SAT 30.2764 30.2992

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110969933.opb
MD5SUMbc1af809c45d4fb609c4a61db7aef018
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 benchmark0.010997
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 1252
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 Time Limit set via PBTIMEOUT to 1800
0.01	c INFO: OSL Context initialized.
0.02	c Initial problem consists of 169 variables and 101 constraints.
0.02	c Using non-optimization problem switches.
0.02	c No problem reductions applied in OPT. instance.
0.02	c	preprocess terminated. Elapsed time: 0.012
0.02	c After prepocess the problem consists of 169 variables and 99 constraints.
0.03	c Restart #1 #Var: 169 LB: 0 @ 0.026
0.06	c Restart #2 #Var: 169 LB: 0 @ 0.052
0.11	c Restart #3 #Var: 169 LB: 0 @ 0.1
0.15	c Restart #4 #Var: 169 LB: 0 @ 0.146
0.23	c Restart #5 #Var: 169 LB: 0 @ 0.217
0.31	c Restart #6 #Var: 169 LB: 0 @ 0.298
0.42	c Restart #7 #Var: 169 LB: 0 @ 0.408
0.55	c Restart #8 #Var: 169 LB: 0 @ 0.542
0.74	c Restart #9 #Var: 169 LB: 0 @ 0.736
0.94	c Restart #10 #Var: 169 LB: 0 @ 0.927
1.15	c Restart #11 #Var: 169 LB: 0 @ 1.143
1.41	c Restart #12 #Var: 169 LB: 0 @ 1.403
1.68	c Restart #13 #Var: 169 LB: 0 @ 1.668
2.07	c Restart #14 #Var: 169 LB: 0 @ 2.062
2.45	c Restart #15 #Var: 169 LB: 0 @ 2.439
2.94	c Restart #16 #Var: 169 LB: 0 @ 2.934
3.47	c Restart #17 #Var: 169 LB: 0 @ 3.462
3.98	c Restart #18 #Var: 169 LB: 0 @ 3.966
4.47	c Restart #19 #Var: 169 LB: 0 @ 4.462
5.16	c Restart #20 #Var: 169 LB: 0 @ 5.149
5.79	c Restart #21 #Var: 169 LB: 0 @ 5.784
6.97	c Restart #22 #Var: 169 LB: 0 @ 6.955
7.84	c Restart #23 #Var: 169 LB: 0 @ 7.831
8.71	c Restart #24 #Var: 169 LB: 0 @ 8.699
9.59	c Restart #25 #Var: 169 LB: 0 @ 9.574
11.13	c Restart #26 #Var: 169 LB: 0 @ 11.116
12.46	c Restart #27 #Var: 169 LB: 0 @ 12.441
13.76	c Restart #28 #Var: 169 LB: 0 @ 13.746
15.25	c Restart #29 #Var: 168 LB: 0 @ 15.233
17.31	c Restart #30 #Var: 168 LB: 0 @ 17.293
20.03	c Restart #31 #Var: 168 LB: 0 @ 20.012
22.15	c Restart #32 #Var: 168 LB: 0 @ 22.128
24.57	c Restart #33 #Var: 167 LB: 0 @ 24.55
26.57	c Restart #34 #Var: 167 LB: 0 @ 26.555
29.63	c Restart #35 #Var: 167 LB: 0 @ 29.609
30.28	c Sol. found (all assignments made)...
30.28	o 0
30.28	c NEW SOLUTION FOUND: 0 @ 30.258
30.28	s SATISFIABLE
30.28	c Cost: 0
30.28	v -x1 -x2 -x3 -x4 -x5 -x6 -x7 -x8 -x9 -x10 x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27 -x28
30.28	v -x29 -x30 -x31 -x32 -x33 x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 x53 -x54
30.28	v -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 x77 -x78 -x79 -x80
30.28	v -x81 -x82 -x83 -x84 x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104 -x105
30.28	v -x106 -x107 x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125 x126
30.28	v -x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 x143 -x144 -x145 x146 -x147
30.28	v -x148 -x149 -x150 -x151 -x152 -x153 -x154 -x155 -x156 -x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 -x165 x166 -x167 -x168
30.28	v -x169
30.28	c Exit Code: 10
30.28	c Total time: 30.258 s

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/node1/watcher-39453-1149208741 -o ROOT/results/node1/solver-39453-1149208741 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node1/39453-1149208741/instance-39453-1149208741.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.56 0.83 0.87 2/64 19955
/proc/meminfo: memFree=1370456/2055920 swapFree=4181380/4192956
[pid=19955] ppid=19953 vsize=4928 CPUtime=0
/proc/19955/stat : 19955 (bsolo) R 19953 19955 19910 0 -1 0 333 0 0 0 0 0 0 0 19 0 1 0 186535658 5046272 298 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4159471664 0 0 4096 16384 0 0 0 17 1 0 0
/proc/19955/statm: 1232 300 202 55 0 124 0

[startup+10.0025 s]
/proc/loadavg: 0.62 0.84 0.87 2/64 19955
/proc/meminfo: memFree=1326768/2055920 swapFree=4181380/4192956
[pid=19955] ppid=19953 vsize=48124 CPUtime=9.98
/proc/19955/stat : 19955 (bsolo) R 19953 19955 19910 0 -1 0 11303 0 0 0 990 8 0 0 25 0 1 0 186535658 49278976 11218 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134528637 0 0 4096 16384 0 0 0 17 1 0 0
/proc/19955/statm: 12031 11218 296 55 0 10923 0
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 48124

[startup+20.0087 s]
/proc/loadavg: 0.68 0.84 0.87 2/64 19955
/proc/meminfo: memFree=1303408/2055920 swapFree=4181380/4192956
[pid=19955] ppid=19953 vsize=71528 CPUtime=19.98
/proc/19955/stat : 19955 (bsolo) R 19953 19955 19910 0 -1 0 17135 0 0 0 1984 14 0 0 25 0 1 0 186535658 73244672 17050 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134550886 0 0 4096 16384 0 0 0 17 1 0 0
/proc/19955/statm: 17882 17050 296 55 0 16774 0
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 71528

[startup+30.0148 s]
/proc/loadavg: 0.73 0.85 0.87 2/64 19955
/proc/meminfo: memFree=1282736/2055920 swapFree=4181380/4192956
[pid=19955] ppid=19953 vsize=92284 CPUtime=29.98
/proc/19955/stat : 19955 (bsolo) R 19953 19955 19910 0 -1 0 22296 0 0 0 2978 20 0 0 25 0 1 0 186535658 94498816 22211 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134533916 0 0 4096 16384 0 0 0 17 1 0 0
/proc/19955/statm: 23071 22211 296 55 0 21963 0
Current children cumulated CPU time (s) 29.98
Current children cumulated vsize (Kb) 92284

Child status: 10
Real time (s): 30.2992
CPU time (s): 30.2764
CPU user time (s): 30.0474
CPU system time (s): 0.228965
CPU usage (%): 99.9247
Max. virtual memory (cumulated for all children) (Kb): 92284

Launcher Data (download as text)

Begin job on node1 on Fri Jun  2 00:39:01 UTC 2006


FILE ID= 39453-1149208741

PBS_JOBID= 293638

BENCH NAME= ROOT/tmp/node1/39453-1149208741/instance-39453-1149208741.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node1/39453-1149208741/instance-39453-1149208741.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-39453-1149208741 -o ROOT/results/node1/solver-39453-1149208741 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node1/39453-1149208741/instance-39453-1149208741.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  bc1af809c45d4fb609c4a61db7aef018

RANDOM SEED= 623038265


/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		: 3000.231
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		: 3000.231
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:       1370728 kB
Buffers:         28788 kB
Cached:         582948 kB
SwapCached:       3596 kB
Active:         221268 kB
Inactive:       399492 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1370728 kB
SwapTotal:     4192956 kB
SwapFree:      4181380 kB
Dirty:             172 kB
Writeback:           0 kB
Mapped:          14948 kB
Slab:            50464 kB
Committed_AS:   174144 kB
PageTables:       1468 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node1 on Fri Jun  2 00:39:31 UTC 2006