Trace number 2703660

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 1.2.1.3 with SoPlex 1.4.2 (CVS Version 30.5.2010) as LP solver? (MO) 17.7653 17.7997

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 1.2.1.3 [precision: 8 byte] [memory: block] [mode: optimized] [LP solver: SoPlex 1.4.2]
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-2703660-1278551661.opb>
12.78/12.80	c original problem has 1041679 variables (1041679 bin, 0 int, 0 impl, 0 cont) and 127860 constraints
12.78/12.80	c problem read
12.78/12.85	c presolving settings loaded
16.87/16.91	c pressed CTRL-C 1 times (5 times for forcing termination)
17.57/17.62	c [src/blockmemshell/memory.c:853] ERROR: Insufficient memory for allocation of 131136 bytes
17.57/17.62	c [src/scip/cons_linear.c:901] ERROR: Insufficient memory for new chunk
17.57/17.62	c [src/scip/cons_linear.c:901] ERROR: Error <-1> in function call
17.57/17.62	c [src/scip/cons_linear.c:962] ERROR: Error <-1> in function call
17.57/17.62	c [src/scip/cons_linear.c:8390] ERROR: Error <-1> in function call
17.57/17.62	c [src/scip/cons.c:2059] ERROR: Error <-1> in function call
17.57/17.62	c [src/scip/set.c:2872] ERROR: Error <-1> in function call
17.57/17.62	c [src/scip/scip.c:5177] ERROR: Error <-1> in function call
17.57/17.62	c [src/scip/scip.c:6115] ERROR: Error <-1> in function call
17.57/17.62	c [src/cmain.c:599] ERROR: Error <-1> in function call
17.57/17.62	c [src/cmain.c:849] ERROR: Error <-1> in function call
17.57/17.62	c [src/cmain.c:925] ERROR: Error <-1> in function call
17.57/17.62	c SCIP Error (-1): c insufficient memory errorc 
17.57/17.62	c Time complete: 17.59.

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-2703660-1278551661/watcher-2703660-1278551661 -o /tmp/evaluation-result-2703660-1278551661/solver-2703660-1278551661 -C 1800 -W 2000 -M 1800 HOME/pbscip.linux.x86_64.gnu.opt.spx -f HOME/instance-2703660-1278551661.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: 1.00 1.00 0.93 3/105 26736
/proc/meminfo: memFree=1659764/2059040 swapFree=4153580/4192956
[pid=26736] ppid=26734 vsize=7904 CPUtime=0
/proc/26736/stat : 26736 (pbscip.linux.x8) R 26734 26736 26077 0 -1 4202496 1101 0 0 0 0 0 0 0 21 0 1 0 23374986 8093696 1014 1992294400 4194304 8395647 140734883079216 18446744073709551615 7382157 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26736/statm: 1976 1022 365 1026 0 946 0

[startup+0.067858 s]
/proc/loadavg: 1.00 1.00 0.93 3/105 26736
/proc/meminfo: memFree=1659764/2059040 swapFree=4153580/4192956
[pid=26736] ppid=26734 vsize=21364 CPUtime=0.06
/proc/26736/stat : 26736 (pbscip.linux.x8) R 26734 26736 26077 0 -1 4202496 4625 0 0 0 5 1 0 0 23 0 1 0 23374986 21876736 4537 1992294400 4194304 8395647 140734883079216 18446744073709551615 7370183 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26736/statm: 5341 4537 393 1026 0 4311 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 21364

[startup+0.101861 s]
/proc/loadavg: 1.00 1.00 0.93 3/105 26736
/proc/meminfo: memFree=1659764/2059040 swapFree=4153580/4192956
[pid=26736] ppid=26734 vsize=28344 CPUtime=0.09
/proc/26736/stat : 26736 (pbscip.linux.x8) R 26734 26736 26077 0 -1 4202496 6394 0 0 0 8 1 0 0 23 0 1 0 23374986 29024256 6306 1992294400 4194304 8395647 140734883079216 18446744073709551615 7324688 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26736/statm: 7086 6306 393 1026 0 6056 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 28344

[startup+0.301882 s]
/proc/loadavg: 1.00 1.00 0.93 3/105 26736
/proc/meminfo: memFree=1659764/2059040 swapFree=4153580/4192956
[pid=26736] ppid=26734 vsize=64868 CPUtime=0.29
/proc/26736/stat : 26736 (pbscip.linux.x8) R 26734 26736 26077 0 -1 4202496 15517 0 0 0 24 5 0 0 23 0 1 0 23374986 66424832 15429 1992294400 4194304 8395647 140734883079216 18446744073709551615 6765657 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26736/statm: 16217 15429 393 1026 0 15187 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 64868

[startup+0.701924 s]
/proc/loadavg: 1.00 1.00 0.93 3/105 26736
/proc/meminfo: memFree=1659764/2059040 swapFree=4153580/4192956
[pid=26736] ppid=26734 vsize=133104 CPUtime=0.69
/proc/26736/stat : 26736 (pbscip.linux.x8) R 26734 26736 26077 0 -1 4202496 32518 0 0 0 58 11 0 0 25 0 1 0 23374986 136298496 32430 1992294400 4194304 8395647 140734883079216 18446744073709551615 7385036 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26736/statm: 33276 32430 393 1026 0 32246 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 133104

[startup+1.50201 s]
/proc/loadavg: 1.00 1.00 0.93 2/106 26737
/proc/meminfo: memFree=1481940/2059040 swapFree=4153580/4192956
[pid=26736] ppid=26734 vsize=261372 CPUtime=1.49
/proc/26736/stat : 26736 (pbscip.linux.x8) R 26734 26736 26077 0 -1 4202496 64523 0 0 0 126 23 0 0 25 0 1 0 23374986 267644928 64435 1992294400 4194304 8395647 140734883079216 18446744073709551615 4685157 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26736/statm: 65343 64435 393 1026 0 64313 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 261372

[startup+3.10118 s]
/proc/loadavg: 1.00 1.00 0.93 2/106 26737
/proc/meminfo: memFree=1310448/2059040 swapFree=4153580/4192956
[pid=26736] ppid=26734 vsize=494212 CPUtime=3.09
/proc/26736/stat : 26736 (pbscip.linux.x8) R 26734 26736 26077 0 -1 4202496 122761 0 0 0 267 42 0 0 25 0 1 0 23374986 506073088 122673 1992294400 4194304 8395647 140734883079216 18446744073709551615 5753659 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26736/statm: 123553 122673 393 1026 0 122523 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 494212

[startup+6.30152 s]
/proc/loadavg: 1.16 1.03 0.94 2/106 26737
/proc/meminfo: memFree=894924/2059040 swapFree=4153580/4192956
[pid=26736] ppid=26734 vsize=776180 CPUtime=6.29
/proc/26736/stat : 26736 (pbscip.linux.x8) R 26734 26736 26077 0 -1 4202496 192990 0 0 0 563 66 0 0 25 0 1 0 23374986 794808320 192902 1992294400 4194304 8395647 140734883079216 18446744073709551615 7324947 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26736/statm: 194045 192902 393 1026 0 193015 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 776180

[startup+12.7012 s]
/proc/loadavg: 1.15 1.03 0.94 2/106 26737
/proc/meminfo: memFree=856732/2059040 swapFree=4153580/4192956
[pid=26736] ppid=26734 vsize=810840 CPUtime=12.69
/proc/26736/stat : 26736 (pbscip.linux.x8) R 26734 26736 26077 0 -1 4202496 201668 0 0 0 1198 71 0 0 25 0 1 0 23374986 830300160 201580 1992294400 4194304 8395647 140734883079216 18446744073709551615 4685157 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26736/statm: 202710 201580 393 1026 0 201680 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 810840



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+16.9017 s]
/proc/loadavg: 1.13 1.03 0.94 5/106 26737
/proc/meminfo: memFree=8384/2059040 swapFree=4139772/4192956
[pid=26736] ppid=26734 vsize=1846796 CPUtime=16.87
/proc/26736/stat : 26736 (pbscip.linux.x8) R 26734 26736 26077 0 -1 4202496 460290 0 0 0 1520 167 0 0 25 0 1 0 23374986 1891119104 459848 1992294400 4194304 8395647 140734883079216 18446744073709551615 6347182 0 0 4096 16384 0 0 0 17 1 0 0 1
/proc/26736/statm: 461699 459848 420 1026 0 460669 0
Current children cumulated CPU time (s) 16.87
Current children cumulated vsize (KiB) 1846796

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

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

[startup+17.5017 s]
/proc/loadavg: 1.13 1.03 0.94 5/106 26737
/proc/meminfo: memFree=8384/2059040 swapFree=4139772/4192956
[pid=26736] ppid=26734 vsize=1885676 CPUtime=17.46
/proc/26736/stat : 26736 (pbscip.linux.x8) R 26734 26736 26077 0 -1 4202496 470010 0 0 0 1574 172 0 0 25 0 1 0 23374986 1930932224 469568 1992294400 4194304 8395647 140734883079216 18446744073709551615 6349190 0 0 4096 16384 0 0 0 17 1 0 0 1
/proc/26736/statm: 471419 469568 420 1026 0 470389 0
Current children cumulated CPU time (s) 17.46
Current children cumulated vsize (KiB) 1885676

[startup+17.7097 s]
/proc/loadavg: 1.13 1.03 0.94 3/107 26738
/proc/meminfo: memFree=9320/2059040 swapFree=4139772/4192956
[pid=26736] ppid=26734 vsize=0 CPUtime=17.67
/proc/26736/stat : 26736 (pbscip.linux.x8) R 26734 26736 26077 0 -1 4202500 472182 0 0 0 1586 181 0 0 25 0 1 0 23374986 0 0 1992294400 0 0 0 0 0 0 0 4096 16384 18446744073709551615 0 0 17 0 0 0 1
/proc/26736/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 17.67
Current children cumulated vsize (KiB) 0

Child status: 255
Real time (s): 17.7997
CPU time (s): 17.7653
CPU user time (s): 15.8636
CPU system time (s): 1.90171
CPU usage (%): 99.8069
Max. virtual memory (cumulated for all children) (KiB): 1892788

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.8636
system time used= 1.90171
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 472182
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= 3
involuntary context switches= 80

runsolver used 0.030995 second user time and 0.106983 second system time

The end

Launcher Data 

Begin job on node081 at 2010-07-08 03:14:23
IDJOB=2703660
IDBENCH=1845
IDSOLVER=1213
FILE ID=node081/2703660-1278551661
PBS_JOBID= 11239482
Free space on /tmp= 121768 MiB

SOLVER NAME= SCIPspx SCIP 1.2.1.3 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-2703660-1278551661/watcher-2703660-1278551661 -o /tmp/evaluation-result-2703660-1278551661/solver-2703660-1278551661 -C 1800 -W 2000 -M 1800  HOME/pbscip.linux.x86_64.gnu.opt.spx -f HOME/instance-2703660-1278551661.opb -t 1800 -m 1800

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

MD5SUM BENCH= 1ef5c8e94b66b7ed63dffc6923ecd901
RANDOM SEED=1390699492

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		: 3000.242
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	: 5999.38
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1660168 kB
Buffers:         60032 kB
Cached:         240152 kB
SwapCached:       2212 kB
Active:         199576 kB
Inactive:       123700 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1660168 kB
SwapTotal:     4192956 kB
SwapFree:      4153580 kB
Dirty:           46048 kB
Writeback:           0 kB
AnonPages:       20836 kB
Mapped:          12844 kB
Slab:            53808 kB
PageTables:       4088 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182756 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= 121760 MiB
End job on node081 at 2010-07-08 03:14:42