Trace number 1868672

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 NameAnswerobjCPU timeWall clock time
SCIPspx SCIP 1.1.0.7 with SoPLEX 1.4.1(24.4.2009)? (MO) 17.3304 17.5795

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 benchmark1798.33
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 

10.89/10.90	c SCIP version 1.1.0.7
10.89/10.90	c LP-Solver SoPlex 1.4.1
10.89/10.90	c user parameter file <scip.set> not found - using default parameters
10.89/10.90	c read problem <HOME/instance-1868672-1245132271.opb>
10.89/10.90	c original problem has 1041679 variables (1041679 bin, 0 int, 0 impl, 0 cont) and 127860 constraints

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-1868672-1245132271/watcher-1868672-1245132271 -o /tmp/evaluation-result-1868672-1245132271/solver-1868672-1245132271 -C 1800 -W 2000 -M 1800 HOME/pbscip.linux.x86_64.gnu.opt-gcc42.spx -t 1800 -m 1800 -f HOME/instance-1868672-1245132271.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: 0.99 0.98 0.99 3/64 4282
/proc/meminfo: memFree=1738936/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=6100 CPUtime=0
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4194304 605 0 0 0 0 0 0 0 18 0 1 0 180827270 6246400 587 1992294400 4194304 7823515 548682068736 18446744073709551615 4402248 0 0 4096 0 0 0 0 17 0 0 0
/proc/4282/statm: 1525 598 325 886 0 635 0

[startup+0.0936711 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 4282
/proc/meminfo: memFree=1738936/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=24436 CPUtime=0.08
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4194304 5458 0 0 0 6 2 0 0 18 0 1 0 180827270 25022464 5440 1992294400 4194304 7823515 548682068736 18446744073709551615 4808164 0 0 4096 0 0 0 0 17 0 0 0
/proc/4282/statm: 6109 5440 354 886 0 5219 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 24436

[startup+0.101671 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 4282
/proc/meminfo: memFree=1738936/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=26520 CPUtime=0.09
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4194304 5973 0 0 0 7 2 0 0 18 0 1 0 180827270 27156480 5955 1992294400 4194304 7823515 548682068736 18446744073709551615 4807767 0 0 4096 0 0 0 0 17 0 0 0
/proc/4282/statm: 6630 5955 354 886 0 5740 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 26520

[startup+0.301693 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 4282
/proc/meminfo: memFree=1738936/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=63296 CPUtime=0.29
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4194304 15125 0 0 0 23 6 0 0 19 0 1 0 180827270 64815104 15107 1992294400 4194304 7823515 548682068736 18446744073709551615 5878822 0 0 4096 0 0 0 0 17 0 0 0
/proc/4282/statm: 15824 15111 354 886 0 14934 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 63296

[startup+0.701738 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 4282
/proc/meminfo: memFree=1738936/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=129440 CPUtime=0.69
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4194304 31621 0 0 0 56 13 0 0 23 0 1 0 180827270 132546560 31603 1992294400 4194304 7823515 548682068736 18446744073709551615 6908057 0 0 4096 0 0 0 0 17 0 0 0
/proc/4282/statm: 32360 31603 354 886 0 31470 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 129440

[startup+1.50183 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 4283
/proc/meminfo: memFree=1564656/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=256716 CPUtime=1.49
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4194304 63393 0 0 0 124 25 0 0 25 0 1 0 180827270 262877184 63375 1992294400 4194304 7823515 548682068736 18446744073709551615 6908077 0 0 4096 0 0 0 0 17 0 0 0
/proc/4282/statm: 64179 63375 354 886 0 63289 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 256716

[startup+3.10202 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 4283
/proc/meminfo: memFree=1395760/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=482340 CPUtime=3.09
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4194304 119845 0 0 0 263 46 0 0 25 0 1 0 180827270 493916160 119827 1992294400 4194304 7823515 548682068736 18446744073709551615 4394054 0 0 4096 0 0 0 0 17 0 0 0
/proc/4282/statm: 120585 119827 354 886 0 119695 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 482340

[startup+6.30137 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 4283
/proc/meminfo: memFree=998960/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=750448 CPUtime=6.29
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4194304 186593 0 0 0 558 71 0 0 25 0 1 0 180827270 768458752 186575 1992294400 4194304 7823515 548682068736 18446744073709551615 6957168 0 0 4096 0 0 0 0 17 0 0 0
/proc/4282/statm: 187612 186575 354 886 0 186722 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 750448

[startup+12.7011 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 4283
/proc/meminfo: memFree=519152/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=1519860 CPUtime=12.69
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4194304 378401 0 0 0 1123 146 0 0 25 0 1 0 180827270 1556336640 378029 1992294400 4194304 7823515 548682068736 18446744073709551615 5878822 0 0 4096 16384 0 0 0 17 0 0 0
/proc/4282/statm: 379965 378038 367 886 0 379075 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1519860



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+15.3014 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 4283
/proc/meminfo: memFree=15088/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=1844324 CPUtime=15.26
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4194304 459653 0 0 0 1348 178 0 0 25 0 1 0 180827270 1888587776 459281 1992294400 4194304 7823515 548682068736 18446744073709551615 4539774 0 0 4096 16384 0 0 0 17 0 0 0
/proc/4282/statm: 461081 459281 375 886 0 460191 0
Current children cumulated CPU time (s) 15.26
Current children cumulated vsize (KiB) 1844324

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -4282

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

[startup+16.0015 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 4283
/proc/meminfo: memFree=15088/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=1859048 CPUtime=15.74
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4194304 463193 0 0 0 1393 181 0 0 25 0 1 0 180827270 1903665152 462821 1992294400 4194304 7823515 548682068736 18446744073709551615 4685941 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4282/statm: 464762 462821 385 886 0 463872 0
Current children cumulated CPU time (s) 15.74
Current children cumulated vsize (KiB) 1859048

[startup+16.8016 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 4284
/proc/meminfo: memFree=15528/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=1859048 CPUtime=16.54
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4194304 463193 0 0 0 1473 181 0 0 25 0 1 0 180827270 1903665152 462821 1992294400 4194304 7823515 548682068736 18446744073709551615 4686182 0 0 4096 16384 0 0 0 17 0 0 0
/proc/4282/statm: 464762 462821 385 886 0 463872 0
Current children cumulated CPU time (s) 16.54
Current children cumulated vsize (KiB) 1859048

[startup+17.2016 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 4284
/proc/meminfo: memFree=15528/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=1859048 CPUtime=16.94
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4194304 463193 0 0 0 1513 181 0 0 25 0 1 0 180827270 1903665152 462821 1992294400 4194304 7823515 548682068736 18446744073709551615 4685941 0 0 4096 16384 0 0 0 17 0 0 0
/proc/4282/statm: 464762 462821 385 886 0 463872 0
Current children cumulated CPU time (s) 16.94
Current children cumulated vsize (KiB) 1859048

[startup+17.4016 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 4284
/proc/meminfo: memFree=15528/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=0 CPUtime=17.14
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4195332 463193 0 0 0 1524 190 0 0 25 0 1 0 180827270 0 0 1992294400 0 0 0 0 0 0 0 4096 16384 0 0 0 17 0 0 0
/proc/4282/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 17.14
Current children cumulated vsize (KiB) 0

[startup+17.5016 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 4284
/proc/meminfo: memFree=15528/2055920 swapFree=4182468/4192956
[pid=4282] ppid=4280 vsize=0 CPUtime=17.24
/proc/4282/stat : 4282 (pbscip.linux.x8) R 4280 4282 3949 0 -1 4195332 463193 0 0 0 1524 200 0 0 25 0 1 0 180827270 0 0 1992294400 0 0 0 0 0 0 0 4096 16384 0 0 0 17 0 0 0
/proc/4282/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 17.24
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 17.5795
CPU time (s): 17.3304
CPU user time (s): 15.2457
CPU system time (s): 2.08468
CPU usage (%): 98.5828
Max. virtual memory (cumulated for all children) (KiB): 1859048

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.2457
system time used= 2.08468
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 463193
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= 5
involuntary context switches= 76

runsolver used 0.017997 second user time and 0.057991 second system time

The end

Launcher Data 

Begin job on node23 at 2009-06-16 08:04:33
IDJOB=1868672
IDBENCH=1845
IDSOLVER=683
FILE ID=node23/1868672-1245132271
PBS_JOBID= 9363705
Free space on /tmp= 66236 MiB

SOLVER NAME= SCIPspx SCIP 1.1.0.7 with SoPLEX 1.4.1(24.4.2009)
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-gcc42.spx -t TIMEOUT -m MEMLIMIT -f BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1868672-1245132271/watcher-1868672-1245132271 -o /tmp/evaluation-result-1868672-1245132271/solver-1868672-1245132271 -C 1800 -W 2000 -M 1800  HOME/pbscip.linux.x86_64.gnu.opt-gcc42.spx -t 1800 -m 1800 -f HOME/instance-1868672-1245132271.opb

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

MD5SUM BENCH= 1ef5c8e94b66b7ed63dffc6923ecd901
RANDOM SEED=1237483211

node23.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.236
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
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		: 3000.236
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1739352 kB
Buffers:         36004 kB
Cached:         216936 kB
SwapCached:       4304 kB
Active:          94648 kB
Inactive:       166148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1739352 kB
SwapTotal:     4192956 kB
SwapFree:      4182468 kB
Dirty:           45528 kB
Writeback:           0 kB
Mapped:          14556 kB
Slab:            41784 kB
Committed_AS:   148336 kB
PageTables:       1392 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66224 MiB
End job on node23 at 2009-06-16 08:04:51