Trace number 2682163

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 fixed? (MO) 127.19 127.288

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib2003/normalized-mps-v2-20-10-momentum3.opb
MD5SUM84f1974aba41ac2d1ba5ffc7a29fc60a
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark10752000000
Best CPU time to get the best result obtained on this benchmark258.146
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 10752000000
Optimality of the best value was proved NO
Number of variables93400
Total number of constraints49198
Number of constraints which are clauses6081
Number of constraints which are cardinality constraints (but not clauses)450
Number of constraints which are nor clauses,nor cardinality constraints42667
Minimum length of a constraint1
Maximum length of a constraint1018
Number of terms in the objective function 87370
Biggest coefficient in the objective function 1310720000
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 13573186735
Number of bits of the sum of numbers in the objective function 34
Biggest number in a constraint 10240000000000000000000000000
Number of bits of the biggest number in a constraint 94
Biggest sum of numbers in a constraint 29801266744107042664773061860
Number of bits of the biggest sum of numbers95
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

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
101.46/101.53	c constraints 37235/0 clauses 1281/0 units 8692
101.46/101.53	c vars 93400
101.86/101.90	c objective 84500 + -68669440
127.01/127.10	s UNKNOWN

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2682163-1277488551/watcher-2682163-1277488551 -o /tmp/evaluation-result-2682163-1277488551/solver-2682163-1277488551 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682163-1277488551.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: 1.29 1.05 0.97 3/106 28845
/proc/meminfo: memFree=1549248/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=2548 CPUtime=0
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4202496 326 0 0 0 0 0 0 0 18 0 1 0 90148196 2609152 246 1992294400 134512640 136421960 4288727488 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/28845/statm: 637 246 138 467 0 168 0

[startup+0.0669981 s]
/proc/loadavg: 1.29 1.05 0.97 3/106 28845
/proc/meminfo: memFree=1549248/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=5052 CPUtime=0.06
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4202496 1119 0 0 0 6 0 0 0 20 0 1 0 90148196 5173248 795 1992294400 134512640 136421960 4288727488 18446744073709551615 135809976 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/28845/statm: 1263 795 138 467 0 794 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5052

[startup+0.100997 s]
/proc/loadavg: 1.29 1.05 0.97 3/106 28845
/proc/meminfo: memFree=1549248/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=5864 CPUtime=0.09
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4202496 1426 0 0 0 9 0 0 0 20 0 1 0 90148196 6004736 973 1992294400 134512640 136421960 4288727488 18446744073709551615 135641990 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/28845/statm: 1466 973 138 467 0 997 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5864

[startup+0.300991 s]
/proc/loadavg: 1.29 1.05 0.97 3/106 28845
/proc/meminfo: memFree=1549248/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=9492 CPUtime=0.29
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4202496 2575 0 0 0 29 0 0 0 20 0 1 0 90148196 9719808 1672 1992294400 134512640 136421960 4288727488 18446744073709551615 135806113 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/28845/statm: 2373 1672 141 467 0 1904 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9492

[startup+0.700979 s]
/proc/loadavg: 1.29 1.05 0.97 3/106 28845
/proc/meminfo: memFree=1549248/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=15828 CPUtime=0.69
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4202496 4145 0 0 0 68 1 0 0 21 0 1 0 90148196 16207872 3242 1992294400 134512640 136421960 4288727488 18446744073709551615 135380571 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/28845/statm: 3957 3242 146 467 0 3488 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15828

[startup+1.50095 s]
/proc/loadavg: 1.35 1.07 0.97 2/107 28846
/proc/meminfo: memFree=1532748/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=26012 CPUtime=1.49
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4202496 6685 0 0 0 147 2 0 0 24 0 1 0 90148196 26636288 5782 1992294400 134512640 136421960 4288727488 18446744073709551615 134554548 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/28845/statm: 6503 5782 146 467 0 6034 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 26012

[startup+3.10091 s]
/proc/loadavg: 1.35 1.07 0.97 2/107 28846
/proc/meminfo: memFree=1525308/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=31804 CPUtime=3.09
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4202496 8154 0 0 0 305 4 0 0 25 0 1 0 90148196 32567296 7251 1992294400 134512640 136421960 4288727488 18446744073709551615 135818454 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/28845/statm: 7951 7251 146 467 0 7482 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 31804

[startup+6.30081 s]
/proc/loadavg: 1.35 1.07 0.97 2/107 28846
/proc/meminfo: memFree=1516504/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=41388 CPUtime=6.29
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4202496 10543 0 0 0 623 6 0 0 25 0 1 0 90148196 42381312 9640 1992294400 134512640 136421960 4288727488 18446744073709551615 135161791 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/28845/statm: 10347 9640 146 467 0 9878 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 41388

[startup+12.7016 s]
/proc/loadavg: 1.29 1.06 0.97 2/107 28848
/proc/meminfo: memFree=1485132/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=72452 CPUtime=12.69
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4202496 18296 0 0 0 1259 10 0 0 25 0 1 0 90148196 74190848 17393 1992294400 134512640 136421960 4288727488 18446744073709551615 135161806 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/28845/statm: 18113 17393 146 467 0 17644 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 72452

[startup+25.5002 s]
/proc/loadavg: 1.25 1.06 0.97 2/107 28848
/proc/meminfo: memFree=1437640/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=119744 CPUtime=25.49
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4202496 30139 0 0 0 2531 18 0 0 25 0 1 0 90148196 122617856 29236 1992294400 134512640 136421960 4288727488 18446744073709551615 135153512 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/28845/statm: 29936 29236 146 467 0 29467 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 119744

[startup+51.1005 s]
/proc/loadavg: 1.16 1.06 0.97 3/107 28848
/proc/meminfo: memFree=1344144/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=213268 CPUtime=51.07
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4202496 53488 0 0 0 5073 34 0 0 25 0 1 0 90148196 218386432 52585 1992294400 134512640 136421960 4288727488 18446744073709551615 134554566 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/28845/statm: 53317 52585 146 467 0 52848 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 213268

[startup+102.309 s]
/proc/loadavg: 1.10 1.06 0.98 2/107 28850
/proc/meminfo: memFree=1085852/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=479236 CPUtime=102.26
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4202496 119768 0 0 0 10156 70 0 0 25 0 1 0 90148196 490737664 118865 1992294400 134512640 136421960 4288727488 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/28845/statm: 119809 118866 195 467 0 119340 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 479236



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+127.1 s]
/proc/loadavg: 1.14 1.07 0.98 2/107 28850
/proc/meminfo: memFree=9572/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=1844896 CPUtime=127.01
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4202496 487494 0 0 0 12464 237 0 0 25 0 1 0 90148196 1889173504 459041 1992294400 134512640 136421960 4288727488 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/28845/statm: 461224 459042 195 467 0 460755 0
Current children cumulated CPU time (s) 127.01
Current children cumulated vsize (KiB) 1844896

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+127.209 s]
/proc/loadavg: 1.14 1.07 0.98 2/107 28850
/proc/meminfo: memFree=9572/2059040 swapFree=4139556/4192956
[pid=28845] ppid=28843 vsize=0 CPUtime=127.11
/proc/28845/stat : 28845 (pbct) R 28843 28845 28186 0 -1 4194308 487502 0 0 0 12464 247 0 0 25 0 1 0 90148196 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/28845/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 127.11
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 127.288
CPU time (s): 127.19
CPU user time (s): 124.64
CPU system time (s): 2.54961
CPU usage (%): 99.9229
Max. virtual memory (cumulated for all children) (KiB): 1844896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 124.64
system time used= 2.54961
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 487502
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= 1871

runsolver used 0.225965 second user time and 0.638902 second system time

The end

Launcher Data 

Begin job on node055 at 2010-06-25 19:56:13
IDJOB=2682163
IDBENCH=2494
IDSOLVER=1192
FILE ID=node055/2682163-1277488551
PBS_JOBID= 11190492
Free space on /tmp= 62108 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-momentum3.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682163-1277488551/watcher-2682163-1277488551 -o /tmp/evaluation-result-2682163-1277488551/solver-2682163-1277488551 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682163-1277488551.opb

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

MD5SUM BENCH= 84f1974aba41ac2d1ba5ffc7a29fc60a
RANDOM SEED=1136603746

node055.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		: 3000.258
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	: 6000.51
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		: 3000.258
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:       1549520 kB
Buffers:         22792 kB
Cached:         385912 kB
SwapCached:       5976 kB
Active:         327564 kB
Inactive:        93764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1549520 kB
SwapTotal:     4192956 kB
SwapFree:      4139556 kB
Dirty:          206812 kB
Writeback:           0 kB
AnonPages:       11316 kB
Mapped:          11760 kB
Slab:            65856 kB
PageTables:       4148 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182844 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= 62108 MiB
End job on node055 at 2010-06-25 19:58:22