Trace number 2666952

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
SCIPspx SCIP 1.2.1.2 with SoPlex 1.4.2 (CVS Version 30.5.2010) as LP solver? (MO) 18.8221 19.1284

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos19.opb
MD5SUM1ef5c8e94b66b7ed63dffc6923ecd901
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark-3
Best CPU time to get the best result obtained on this benchmark1798.31
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -3
Optimality of the best value was proved NO
Number of variables1041679
Total number of constraints127860
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)80
Number of constraints which are nor clauses,nor cardinality constraints127780
Minimum length of a constraint2
Maximum length of a constraint275
Number of terms in the objective function 1611
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 1611
Number of bits of the sum of numbers in the objective function 11
Biggest number in a constraint 24576
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 98256
Number of bits of the biggest sum of numbers17
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 SCIP version 1.2.1.2 [precision: 8 byte] [memory: block] [mode: optimized] [LP solver: SoPlex 1.4.2] [Expressions interpreter: NONE]
0.00/0.00	c Copyright (c) 2002-2010 Konrad-Zuse-Zentrum fuer Informationstechnik Berlin (ZIB)
0.00/0.00	c 
0.00/0.00	c user parameter file <scip.set> not found - using default parameters
0.00/0.00	c reading problem <HOME/instance-2666952-1276350422.opb>
13.59/13.66	c original problem has 1041679 variables (1041679 bin, 0 int, 0 impl, 0 cont) and 127860 constraints
13.59/13.66	c problem read
13.69/13.71	c presolving settings loaded
18.01/18.31	c pressed CTRL-C 1 times (5 times for forcing termination)
18.58/18.94	c [src/blockmemshell/memory.c:853] ERROR: Insufficient memory for allocation of 131136 bytes
18.58/18.94	c [src/scip/cons_linear.c:901] ERROR: Insufficient memory for new chunk
18.58/18.94	c [src/scip/cons_linear.c:901] ERROR: Error <-1> in function call
18.58/18.94	c [src/scip/cons_linear.c:962] ERROR: Error <-1> in function call
18.58/18.94	c [src/scip/cons_linear.c:8374] ERROR: Error <-1> in function call
18.58/18.94	c [src/scip/cons.c:2059] ERROR: Error <-1> in function call
18.58/18.94	c [src/scip/set.c:2808] ERROR: Error <-1> in function call
18.58/18.94	c [src/scip/scip.c:5024] ERROR: Error <-1> in function call
18.58/18.94	c [src/scip/scip.c:5954] ERROR: Error <-1> in function call
18.58/18.94	c [src/cmain.c:585] ERROR: Error <-1> in function call
18.58/18.94	c [src/cmain.c:832] ERROR: Error <-1> in function call
18.58/18.94	c [src/cmain.c:908] ERROR: Error <-1> in function call
18.58/18.94	c SCIP Error (-1): c insufficient memory errorc 
18.58/18.94	c Time complete: 18.63.

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-2666952-1276350422/watcher-2666952-1276350422 -o /tmp/evaluation-result-2666952-1276350422/solver-2666952-1276350422 -C 1800 -W 2000 -M 1800 HOME/pbscip.linux.x86_64.gnu.opt.spx -f HOME/instance-2666952-1276350422.opb -t 1800 -m 1800 

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: 1.88 2.06 1.93 3/107 11799
/proc/meminfo: memFree=1679560/2059040 swapFree=4192956/4192956
[pid=11799] ppid=11797 vsize=6696 CPUtime=0
/proc/11799/stat : 11799 (pbscip.linux.x8) R 11797 11799 11698 0 -1 4202496 986 0 0 0 0 0 0 0 19 0 1 0 8698146 6856704 906 1992294400 4194304 8223781 140735528896816 18446744073709551615 7253477 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/11799/statm: 1674 916 343 984 0 687 0

[startup+0.095075 s]
/proc/loadavg: 1.88 2.06 1.93 3/107 11799
/proc/meminfo: memFree=1679560/2059040 swapFree=4192956/4192956
[pid=11799] ppid=11797 vsize=24880 CPUtime=0.09
/proc/11799/stat : 11799 (pbscip.linux.x8) R 11797 11799 11698 0 -1 4202496 5546 0 0 0 7 2 0 0 21 0 1 0 8698146 25477120 5466 1992294400 4194304 8223781 140735528896816 18446744073709551615 7304922 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/11799/statm: 6227 5466 365 984 0 5240 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 24880

[startup+0.101077 s]
/proc/loadavg: 1.88 2.06 1.93 3/107 11799
/proc/meminfo: memFree=1679560/2059040 swapFree=4192956/4192956
[pid=11799] ppid=11797 vsize=24908 CPUtime=0.09
/proc/11799/stat : 11799 (pbscip.linux.x8) R 11797 11799 11698 0 -1 4202496 5549 0 0 0 7 2 0 0 21 0 1 0 8698146 25505792 5469 1992294400 4194304 8223781 140735528896816 18446744073709551615 6639991 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/11799/statm: 6227 5469 365 984 0 5240 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 24908

[startup+0.301093 s]
/proc/loadavg: 1.88 2.06 1.93 3/107 11799
/proc/meminfo: memFree=1679560/2059040 swapFree=4192956/4192956
[pid=11799] ppid=11797 vsize=57596 CPUtime=0.29
/proc/11799/stat : 11799 (pbscip.linux.x8) R 11797 11799 11698 0 -1 4202496 13686 0 0 0 24 5 0 0 21 0 1 0 8698146 58978304 13606 1992294400 4194304 8223781 140735528896816 18446744073709551615 7246557 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/11799/statm: 14399 13606 365 984 0 13412 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 57596

[startup+0.701129 s]
/proc/loadavg: 1.88 2.06 1.93 3/107 11799
/proc/meminfo: memFree=1679560/2059040 swapFree=4192956/4192956
[pid=11799] ppid=11797 vsize=116080 CPUtime=0.69
/proc/11799/stat : 11799 (pbscip.linux.x8) R 11797 11799 11698 0 -1 4202496 28274 0 0 0 58 11 0 0 22 0 1 0 8698146 118865920 28194 1992294400 4194304 8223781 140735528896816 18446744073709551615 7163976 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/11799/statm: 29020 28194 365 984 0 28033 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 116080

[startup+1.5012 s]
/proc/loadavg: 1.88 2.06 1.93 2/108 11800
/proc/meminfo: memFree=1524800/2059040 swapFree=4192956/4192956
[pid=11799] ppid=11797 vsize=227124 CPUtime=1.49
/proc/11799/stat : 11799 (pbscip.linux.x8) R 11797 11799 11698 0 -1 4202496 56017 0 0 0 128 21 0 0 25 0 1 0 8698146 232574976 55937 1992294400 4194304 8223781 140735528896816 18446744073709551615 6207680 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/11799/statm: 56781 55937 365 984 0 55794 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 227124

[startup+3.10134 s]
/proc/loadavg: 1.81 2.04 1.92 2/108 11800
/proc/meminfo: memFree=1377364/2059040 swapFree=4192956/4192956
[pid=11799] ppid=11797 vsize=429104 CPUtime=3.09
/proc/11799/stat : 11799 (pbscip.linux.x8) R 11797 11799 11698 0 -1 4202496 106591 0 0 0 270 39 0 0 25 0 1 0 8698146 439402496 106511 1992294400 4194304 8223781 140735528896816 18446744073709551615 7250784 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/11799/statm: 107276 106511 365 984 0 106289 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 429104

[startup+6.30163 s]
/proc/loadavg: 1.81 2.04 1.92 2/108 11802
/proc/meminfo: memFree=993088/2059040 swapFree=4192956/4192956
[pid=11799] ppid=11797 vsize=769308 CPUtime=6.29
/proc/11799/stat : 11799 (pbscip.linux.x8) R 11797 11799 11698 0 -1 4202496 191271 0 0 0 562 67 0 0 25 0 1 0 8698146 787771392 191191 1992294400 4194304 8223781 140735528896816 18446744073709551615 6207136 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/11799/statm: 192327 191191 365 984 0 191340 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 769308

[startup+12.7012 s]
/proc/loadavg: 1.69 2.01 1.91 2/108 11802
/proc/meminfo: memFree=881736/2059040 swapFree=4192956/4192956
[pid=11799] ppid=11797 vsize=804604 CPUtime=12.69
/proc/11799/stat : 11799 (pbscip.linux.x8) R 11797 11799 11698 0 -1 4202496 200113 0 0 0 1198 71 0 0 25 0 1 0 8698146 823914496 200033 1992294400 4194304 8223781 140735528896816 18446744073709551615 7297360 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/11799/statm: 201151 200033 365 984 0 200164 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 804604



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+18.3003 s]
/proc/loadavg: 1.63 1.99 1.90 2/108 11802
/proc/meminfo: memFree=9528/2059040 swapFree=4140276/4192956
[pid=11799] ppid=11797 vsize=1845116 CPUtime=18.01
/proc/11799/stat : 11799 (pbscip.linux.x8) R 11797 11799 11698 0 -1 4202496 459956 0 0 0 1619 182 0 0 18 0 1 0 8698146 1889398784 459327 1992294400 4194304 8223781 140735528896816 18446744073709551615 6205568 0 0 4096 16384 0 0 0 17 0 0 0 27
/proc/11799/statm: 461279 459327 390 984 0 460292 0
Current children cumulated CPU time (s) 18.01
Current children cumulated vsize (KiB) 1845116

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

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

[startup+18.6003 s]
/proc/loadavg: 1.63 1.99 1.90 2/109 11803
/proc/meminfo: memFree=10172/2059040 swapFree=4140276/4192956
[pid=11799] ppid=11797 vsize=1873828 CPUtime=18.3
/proc/11799/stat : 11799 (pbscip.linux.x8) R 11797 11799 11698 0 -1 4202496 467179 0 0 0 1645 185 0 0 18 0 1 0 8698146 1918799872 466550 1992294400 4194304 8223781 140735528896816 18446744073709551615 4409086 0 0 4096 16384 0 0 0 17 0 0 0 27
/proc/11799/statm: 468457 466550 390 984 0 467470 0
Current children cumulated CPU time (s) 18.3
Current children cumulated vsize (KiB) 1873828

[startup+19.0003 s]
/proc/loadavg: 1.63 1.99 1.90 2/109 11803
/proc/meminfo: memFree=10172/2059040 swapFree=4140276/4192956
[pid=11799] ppid=11797 vsize=0 CPUtime=18.68
/proc/11799/stat : 11799 (pbscip.linux.x8) R 11797 11799 11698 0 -1 4202500 472315 0 0 0 1676 192 0 0 19 0 1 0 8698146 0 0 1992294400 0 0 0 0 0 0 0 4096 16384 18446744073709551615 0 0 17 1 0 0 27
/proc/11799/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 18.68
Current children cumulated vsize (KiB) 0

[startup+19.1003 s]
/proc/loadavg: 1.63 1.99 1.90 2/109 11803
/proc/meminfo: memFree=10172/2059040 swapFree=4140276/4192956
[pid=11799] ppid=11797 vsize=0 CPUtime=18.78
/proc/11799/stat : 11799 (pbscip.linux.x8) R 11797 11799 11698 0 -1 4202500 472315 0 0 0 1676 202 0 0 19 0 1 0 8698146 0 0 1992294400 0 0 0 0 0 0 0 4096 16384 18446744073709551615 0 0 17 1 0 0 27
/proc/11799/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 18.78
Current children cumulated vsize (KiB) 0

Child status: 255
Real time (s): 19.1284
CPU time (s): 18.8221
CPU user time (s): 16.7694
CPU system time (s): 2.05269
CPU usage (%): 98.3991
Max. virtual memory (cumulated for all children) (KiB): 1891324

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.7694
system time used= 2.05269
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 472315
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= 26
involuntary context switches= 309

runsolver used 0.035994 second user time and 0.112982 second system time

The end

Launcher Data 

Begin job on node025 at 2010-06-12 15:47:04
IDJOB=2666952
IDBENCH=1845
IDSOLVER=1169
FILE ID=node025/2666952-1276350422
PBS_JOBID= 11173200
Free space on /tmp= 62504 MiB

SOLVER NAME= SCIPspx SCIP 1.2.1.2 with SoPlex 1.4.2 (CVS Version 30.5.2010) as LP solver
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos19.opb
COMMAND LINE= HOME/pbscip.linux.x86_64.gnu.opt.spx -f BENCHNAME -t TIMEOUT -m MEMLIMIT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2666952-1276350422/watcher-2666952-1276350422 -o /tmp/evaluation-result-2666952-1276350422/solver-2666952-1276350422 -C 1800 -W 2000 -M 1800  HOME/pbscip.linux.x86_64.gnu.opt.spx -f HOME/instance-2666952-1276350422.opb -t 1800 -m 1800

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

MD5SUM BENCH= 1ef5c8e94b66b7ed63dffc6923ecd901
RANDOM SEED=483963492

node025.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		: 3000.242
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	: 6000.48
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		: 3000.242
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:       1680088 kB
Buffers:         57604 kB
Cached:         180432 kB
SwapCached:          0 kB
Active:         163360 kB
Inactive:       133996 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1680088 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:           40256 kB
Writeback:           0 kB
AnonPages:       59268 kB
Mapped:          15452 kB
Slab:            59844 kB
PageTables:       4068 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183008 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= 62500 MiB
End job on node025 at 2010-06-12 15:47:25