Trace number 2668740

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 0.1Wrong Opt.1076903936 50.8573 50.8765

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-misc05.opb
MD5SUM4e6161a7dc803af1e0ad1878eef0a0d1
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark1076796928
Best CPU time to get the best result obtained on this benchmark481.022
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1076796928
Optimality of the best value was proved YES
Number of variables1940
Total number of constraints300
Number of constraints which are clauses155
Number of constraints which are cardinality constraints (but not clauses)8
Number of constraints which are nor clauses,nor cardinality constraints137
Minimum length of a constraint2
Maximum length of a constraint451
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 5368709120
Number of bits of the biggest number in a constraint 33
Biggest sum of numbers in a constraint 83751857084
Number of bits of the biggest sum of numbers37
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 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.00/0.03	c constraints 144/0 clauses 155/0 units 630
0.00/0.03	c vars 1940
0.00/0.03	c objective 31 + 0
30.79/30.85	c 28.7726 50.2852 18387 181837
30.79/30.85	o 1076932096
38.39/38.42	c 35.9585 51.418 6945 217184
38.39/38.42	o 1076903936
50.67/50.70	c 47.5288 51.418 8634 256051
50.67/50.70	s OPTIMUM FOUND
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Verifier Data 

OK	1076903936

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668740-1276561392/watcher-2668740-1276561392 -o /tmp/evaluation-result-2668740-1276561392/solver-2668740-1276561392 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668740-1276561392.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 0.99 3/106 31615
/proc/meminfo: memFree=1797776/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=2208 CPUtime=0
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 266 0 0 0 0 0 0 0 20 0 1 0 31740959 2260992 189 1992294400 134512640 136485738 4293429296 18446744073709551615 135848132 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31615/statm: 552 189 156 482 0 68 0

[startup+0.0823691 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 31615
/proc/meminfo: memFree=1797776/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=8556 CPUtime=0.07
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 1820 0 0 0 7 0 0 0 20 0 1 0 31740959 8761344 1743 1992294400 134512640 136485738 4293429296 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 2139 1745 198 482 0 1655 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 8556

[startup+0.101372 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 31615
/proc/meminfo: memFree=1797776/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=9740 CPUtime=0.09
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 2149 0 0 0 9 0 0 0 20 0 1 0 31740959 9973760 2072 1992294400 134512640 136485738 4293429296 18446744073709551615 135177424 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 2435 2072 198 482 0 1951 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9740

[startup+0.301394 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 31615
/proc/meminfo: memFree=1797776/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=21912 CPUtime=0.29
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 5225 0 0 0 27 2 0 0 20 0 1 0 31740959 22437888 5049 1992294400 134512640 136485738 4293429296 18446744073709551615 135856849 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 5478 5049 198 482 0 4994 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 21912

[startup+0.701438 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 31615
/proc/meminfo: memFree=1797776/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=37320 CPUtime=0.69
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 9226 0 0 0 64 5 0 0 20 0 1 0 31740959 38215680 8678 1992294400 134512640 136485738 4293429296 18446744073709551615 134992432 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 9330 8678 227 482 0 8846 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 37320

[startup+1.50153 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 31616
/proc/meminfo: memFree=1763792/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=37584 CPUtime=1.5
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 9266 0 0 0 136 14 0 0 23 0 1 0 31740959 38486016 8718 1992294400 134512640 136485738 4293429296 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 9396 8718 227 482 0 8912 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 37584

[startup+3.1017 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 31616
/proc/meminfo: memFree=1763420/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=37980 CPUtime=3.09
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 9377 0 0 0 281 28 0 0 25 0 1 0 31740959 38891520 8829 1992294400 134512640 136485738 4293429296 18446744073709551615 135179579 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 9495 8829 228 482 0 9011 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 37980

[startup+6.30106 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 31616
/proc/meminfo: memFree=1759452/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=42360 CPUtime=6.29
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 10458 0 0 0 580 49 0 0 25 0 1 0 31740959 43376640 9910 1992294400 134512640 136485738 4293429296 18446744073709551615 135183711 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 10590 9910 228 482 0 10106 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 42360

[startup+12.7018 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 31618
/proc/meminfo: memFree=1755484/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=45548 CPUtime=12.69
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 11252 0 0 0 1178 91 0 0 25 0 1 0 31740959 46641152 10704 1992294400 134512640 136485738 4293429296 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 11387 10704 228 482 0 10903 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 45548

[startup+25.5012 s]
/proc/loadavg: 0.95 0.98 0.99 2/107 31618
/proc/meminfo: memFree=1750648/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=50168 CPUtime=25.48
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 12415 0 0 0 2370 178 0 0 25 0 1 0 31740959 51372032 11867 1992294400 134512640 136485738 4293429296 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 12542 11867 228 482 0 12058 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 50168

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

[startup+38.3016 s]
/proc/loadavg: 0.95 0.98 0.99 2/107 31618
/proc/meminfo: memFree=1749036/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=52648 CPUtime=38.27
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 13032 0 0 0 3583 244 0 0 25 0 1 0 31740959 53911552 12298 1992294400 134512640 136485738 4293429296 18446744073709551615 135039031 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 13162 12298 246 482 0 12678 0
Current children cumulated CPU time (s) 38.27
Current children cumulated vsize (KiB) 52648

[startup+44.7013 s]
/proc/loadavg: 0.96 0.98 0.99 2/107 31618
/proc/meminfo: memFree=1749036/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=52648 CPUtime=44.68
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 13033 0 0 0 4187 281 0 0 25 0 1 0 31740959 53911552 12298 1992294400 134512640 136485738 4293429296 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 13162 12298 246 482 0 12678 0
Current children cumulated CPU time (s) 44.68
Current children cumulated vsize (KiB) 52648

[startup+47.9007 s]
/proc/loadavg: 0.96 0.98 0.99 2/107 31618
/proc/meminfo: memFree=1749036/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=52648 CPUtime=47.87
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 13033 0 0 0 4487 300 0 0 25 0 1 0 31740959 53911552 12298 1992294400 134512640 136485738 4293429296 18446744073709551615 134878627 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 13162 12298 246 482 0 12678 0
Current children cumulated CPU time (s) 47.87
Current children cumulated vsize (KiB) 52648

[startup+49.5078 s]
/proc/loadavg: 0.96 0.98 0.99 2/107 31618
/proc/meminfo: memFree=1749036/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=52648 CPUtime=49.48
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 13033 0 0 0 4638 310 0 0 25 0 1 0 31740959 53911552 12298 1992294400 134512640 136485738 4293429296 18446744073709551615 134878660 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 13162 12298 246 482 0 12678 0
Current children cumulated CPU time (s) 49.48
Current children cumulated vsize (KiB) 52648

[startup+50.3009 s]
/proc/loadavg: 0.96 0.98 0.99 2/107 31618
/proc/meminfo: memFree=1749036/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=52648 CPUtime=50.28
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 13033 0 0 0 4714 314 0 0 25 0 1 0 31740959 53911552 12298 1992294400 134512640 136485738 4293429296 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 13162 12298 246 482 0 12678 0
Current children cumulated CPU time (s) 50.28
Current children cumulated vsize (KiB) 52648

[startup+50.701 s]
/proc/loadavg: 0.96 0.98 0.99 2/107 31618
/proc/meminfo: memFree=1749036/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=52648 CPUtime=50.67
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 13033 0 0 0 4752 315 0 0 25 0 1 0 31740959 53911552 12298 1992294400 134512640 136485738 4293429296 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 13162 12298 246 482 0 12678 0
Current children cumulated CPU time (s) 50.67
Current children cumulated vsize (KiB) 52648

[startup+50.801 s]
/proc/loadavg: 0.96 0.98 0.99 2/107 31618
/proc/meminfo: memFree=1749036/2059040 swapFree=4140228/4192956
[pid=31615] ppid=31613 vsize=49168 CPUtime=50.77
/proc/31615/stat : 31615 (pbct) R 31613 31615 30593 0 -1 4202496 13038 0 0 0 4762 315 0 0 25 0 1 0 31740959 50348032 11755 1992294400 134512640 136485738 4293429296 18446744073709551615 134720107 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31615/statm: 12292 11755 250 482 0 11808 0
Current children cumulated CPU time (s) 50.77
Current children cumulated vsize (KiB) 49168

Child status: 0
Real time (s): 50.8765
CPU time (s): 50.8573
CPU user time (s): 47.6927
CPU system time (s): 3.16452
CPU usage (%): 99.9621
Max. virtual memory (cumulated for all children) (KiB): 52648

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 47.6927
system time used= 3.16452
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13039
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= 163

runsolver used 0.080987 second user time and 0.253961 second system time

The end

Launcher Data 

Begin job on node009 at 2010-06-15 02:23:12
IDJOB=2668740
IDBENCH=2484
IDSOLVER=1170
FILE ID=node009/2668740-1276561392
PBS_JOBID= 11173493
Free space on /tmp= 62452 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-misc05.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668740-1276561392/watcher-2668740-1276561392 -o /tmp/evaluation-result-2668740-1276561392/solver-2668740-1276561392 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668740-1276561392.opb

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

MD5SUM BENCH= 4e6161a7dc803af1e0ad1878eef0a0d1
RANDOM SEED=314252428

node009.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		: 3000.199
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	: 6000.39
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		: 3000.199
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1798296 kB
Buffers:         57080 kB
Cached:         124532 kB
SwapCached:       6120 kB
Active:          82736 kB
Inactive:       111532 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1798296 kB
SwapTotal:     4192956 kB
SwapFree:      4140228 kB
Dirty:            2008 kB
Writeback:           0 kB
AnonPages:       10956 kB
Mapped:          12908 kB
Slab:            44544 kB
PageTables:       4032 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181308 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62448 MiB
End job on node009 at 2010-06-15 02:24:03