Trace number 2682939

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 NameAnswerobjective functionCPU timeWall clock time
PB/CT 0.1 fixedOPT1074317824 1.77273 1.77432

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-misc01.opb
MD5SUM4e08c098e45fba5de8abfdff758a82bc
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark1074317824
Best CPU time to get the best result obtained on this benchmark1.77273
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1074317824
Optimality of the best value was proved YES
Number of variables113
Total number of constraints54
Number of constraints which are clauses15
Number of constraints which are cardinality constraints (but not clauses)6
Number of constraints which are nor clauses,nor cardinality constraints33
Minimum length of a constraint5
Maximum length of a constraint101
Number of terms in the objective function 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1073741824
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 3223595007
Number of bits of the biggest sum of numbers32
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data 

0.00/0.00	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.00/0.00	c constraints 39/0 clauses 15/0 units 0
0.00/0.00	c vars 113
0.00/0.00	c objective 31 + 0
0.09/0.10	c 0.090986 5.69922 300 1992
0.09/0.10	o 1074486784
0.09/0.11	c 0.093985 5.85938 318 2047
0.09/0.11	o 1074469376
0.09/0.12	c 0.102984 5.85938 402 2186
0.09/0.12	o 1074440704
0.09/0.14	c 0.119981 5.85938 506 2392
0.09/0.14	o 1074407936
0.09/0.15	c 0.131979 5.85938 333 2596
0.09/0.15	o 1074388992
0.09/0.18	c 0.161975 5.85938 535 2987
0.09/0.18	o 1074381312
0.09/0.19	c 0.166974 5.85938 303 3062
0.09/0.19	o 1074350592
0.19/0.29	c 0.26096 5.85938 594 4081
0.19/0.29	o 1074348544
0.59/0.63	c 0.579911 5.85938 382 7798
0.59/0.63	o 1074317824
1.69/1.76	c 1.65175 5.85938 537 18748
1.69/1.76	s OPTIMUM FOUND
1.69/1.76	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 -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 -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 -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 -x106 -x107 -x108 -x109 -x110 -x111 -x112 x113

Verifier Data 

OK	1074317824

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2682939-1277488340/watcher-2682939-1277488340 -o /tmp/evaluation-result-2682939-1277488340/solver-2682939-1277488340 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682939-1277488340.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.97 3/105 28248
/proc/meminfo: memFree=1807816/2059040 swapFree=4140332/4192956
[pid=28248] ppid=28246 vsize=3576 CPUtime=0
/proc/28248/stat : 28248 (pbct) R 28246 28248 27558 0 -1 4202496 590 0 0 0 0 0 0 0 25 0 1 0 90128128 3661824 509 1992294400 134512640 136421960 4289107024 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28248/statm: 894 510 194 467 0 425 0

[startup+0.017072 s]
/proc/loadavg: 0.92 0.98 0.97 3/105 28248
/proc/meminfo: memFree=1807816/2059040 swapFree=4140332/4192956
[pid=28248] ppid=28246 vsize=4236 CPUtime=0.01
/proc/28248/stat : 28248 (pbct) R 28246 28248 27558 0 -1 4202496 778 0 0 0 1 0 0 0 25 0 1 0 90128128 4337664 697 1992294400 134512640 136421960 4289107024 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28248/statm: 1059 698 194 467 0 590 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4236

[startup+0.101082 s]
/proc/loadavg: 0.92 0.98 0.97 3/105 28248
/proc/meminfo: memFree=1807816/2059040 swapFree=4140332/4192956
[pid=28248] ppid=28246 vsize=5832 CPUtime=0.09
/proc/28248/stat : 28248 (pbct) R 28246 28248 27558 0 -1 4202496 1190 0 0 0 8 1 0 0 25 0 1 0 90128128 5971968 1109 1992294400 134512640 136421960 4289107024 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28248/statm: 1458 1109 216 467 0 989 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5832

[startup+0.301103 s]
/proc/loadavg: 0.92 0.98 0.97 3/105 28248
/proc/meminfo: memFree=1807816/2059040 swapFree=4140332/4192956
[pid=28248] ppid=28246 vsize=5996 CPUtime=0.29
/proc/28248/stat : 28248 (pbct) R 28246 28248 27558 0 -1 4202496 1241 0 0 0 26 3 0 0 25 0 1 0 90128128 6139904 1152 1992294400 134512640 136421960 4289107024 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28248/statm: 1499 1152 238 467 0 1030 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5996

[startup+0.701145 s]
/proc/loadavg: 0.92 0.98 0.97 3/105 28248
/proc/meminfo: memFree=1807816/2059040 swapFree=4140332/4192956
[pid=28248] ppid=28246 vsize=5996 CPUtime=0.69
/proc/28248/stat : 28248 (pbct) R 28246 28248 27558 0 -1 4202496 1246 0 0 0 64 5 0 0 25 0 1 0 90128128 6139904 1156 1992294400 134512640 136421960 4289107024 18446744073709551615 134643624 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28248/statm: 1499 1156 238 467 0 1030 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5996

[startup+1.50123 s]
/proc/loadavg: 0.92 0.98 0.97 2/106 28249
/proc/meminfo: memFree=1804088/2059040 swapFree=4140332/4192956
[pid=28248] ppid=28246 vsize=5996 CPUtime=1.49
/proc/28248/stat : 28248 (pbct) R 28246 28248 27558 0 -1 4202496 1250 0 0 0 139 10 0 0 25 0 1 0 90128128 6139904 1160 1992294400 134512640 136421960 4289107024 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28248/statm: 1499 1160 238 467 0 1030 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5996

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

[startup+1.70125 s]
/proc/loadavg: 0.92 0.98 0.97 2/106 28249
/proc/meminfo: memFree=1804088/2059040 swapFree=4140332/4192956
[pid=28248] ppid=28246 vsize=5996 CPUtime=1.69
/proc/28248/stat : 28248 (pbct) R 28246 28248 27558 0 -1 4202496 1250 0 0 0 158 11 0 0 25 0 1 0 90128128 6139904 1160 1992294400 134512640 136421960 4289107024 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28248/statm: 1499 1160 238 467 0 1030 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 5996

Child status: 0
Real time (s): 1.77432
CPU time (s): 1.77273
CPU user time (s): 1.65875
CPU system time (s): 0.113982
CPU usage (%): 99.9106
Max. virtual memory (cumulated for all children) (KiB): 5996

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.65875
system time used= 0.113982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1255
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= 1
involuntary context switches= 1

runsolver used 0.004999 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node081 at 2010-06-25 19:52:20
IDJOB=2682939
IDBENCH=2485
IDSOLVER=1192
FILE ID=node081/2682939-1277488340
PBS_JOBID= 11190487
Free space on /tmp= 121788 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-misc01.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682939-1277488340/watcher-2682939-1277488340 -o /tmp/evaluation-result-2682939-1277488340/solver-2682939-1277488340 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682939-1277488340.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 4e08c098e45fba5de8abfdff758a82bc
RANDOM SEED=1495593358

node081.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.212
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.42
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		: 3000.212
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1808344 kB
Buffers:         47256 kB
Cached:         104956 kB
SwapCached:       5772 kB
Active:          61320 kB
Inactive:       104420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1808344 kB
SwapTotal:     4192956 kB
SwapFree:      4140332 kB
Dirty:            1880 kB
Writeback:           0 kB
AnonPages:       11724 kB
Mapped:          12128 kB
Slab:            63160 kB
PageTables:       4104 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181468 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264964 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 121784 MiB
End job on node081 at 2010-06-25 19:52:22