Trace number 2669331

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? (MO) 29.1586 29.1855

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-bnl2.opb
MD5SUM1aac4473a72704481ef90ef3ff1598a7
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark7.2349
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables104670
Total number of constraints2262
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints2262
Minimum length of a constraint30
Maximum length of a constraint2460
Number of terms in the objective function 50550
Biggest coefficient in the objective function 322444669747200
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 11314136774293353
Number of bits of the sum of numbers in the objective function 54
Biggest number in a constraint 322444669747200
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 11314136774293353
Number of bits of the biggest sum of numbers54
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 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
1.79/1.88	c constraints 2241/0 clauses 0/0 units 12232
1.79/1.88	c vars 104670
4.30/4.33	c objective 43167 + -174561305042686
28.97/29.00	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-2669331-1276554917/watcher-2669331-1276554917 -o /tmp/evaluation-result-2669331-1276554917/solver-2669331-1276554917 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669331-1276554917.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: 0.93 1.01 1.09 2/106 30764
/proc/meminfo: memFree=1818060/2059040 swapFree=4140192/4192956
[pid=30764] ppid=30762 vsize=2488 CPUtime=0
/proc/30764/stat : 30764 (pbct) R 30762 30764 30094 0 -1 4202496 304 0 0 0 0 0 0 0 18 0 1 0 31095677 2547712 226 1992294400 134512640 136485738 4292674944 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30764/statm: 622 226 151 482 0 138 0

[startup+0.053894 s]
/proc/loadavg: 0.93 1.01 1.09 2/106 30764
/proc/meminfo: memFree=1818060/2059040 swapFree=4140192/4192956
[pid=30764] ppid=30762 vsize=4080 CPUtime=0.05
/proc/30764/stat : 30764 (pbct) R 30762 30764 30094 0 -1 4202496 737 0 0 0 5 0 0 0 18 0 1 0 31095677 4177920 512 1992294400 134512640 136485738 4292674944 18446744073709551615 135565593 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30764/statm: 1020 512 151 482 0 536 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4080

[startup+0.100897 s]
/proc/loadavg: 0.93 1.01 1.09 2/106 30764
/proc/meminfo: memFree=1818060/2059040 swapFree=4140192/4192956
[pid=30764] ppid=30762 vsize=6452 CPUtime=0.09
/proc/30764/stat : 30764 (pbct) R 30762 30764 30094 0 -1 4202496 1293 0 0 0 9 0 0 0 18 0 1 0 31095677 6606848 971 1992294400 134512640 136485738 4292674944 18446744073709551615 134519907 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30764/statm: 1613 971 151 482 0 1129 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6452

[startup+0.300915 s]
/proc/loadavg: 0.93 1.01 1.09 2/106 30764
/proc/meminfo: memFree=1818060/2059040 swapFree=4140192/4192956
[pid=30764] ppid=30762 vsize=7660 CPUtime=0.29
/proc/30764/stat : 30764 (pbct) R 30762 30764 30094 0 -1 4202496 1883 0 0 0 29 0 0 0 18 0 1 0 31095677 7843840 1432 1992294400 134512640 136485738 4292674944 18446744073709551615 135411160 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30764/statm: 1915 1432 157 482 0 1431 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7660

[startup+0.700946 s]
/proc/loadavg: 0.93 1.01 1.09 2/106 30764
/proc/meminfo: memFree=1818060/2059040 swapFree=4140192/4192956
[pid=30764] ppid=30762 vsize=15528 CPUtime=0.69
/proc/30764/stat : 30764 (pbct) R 30762 30764 30094 0 -1 4202496 3785 0 0 0 68 1 0 0 18 0 1 0 31095677 15900672 3334 1992294400 134512640 136485738 4292674944 18446744073709551615 135178839 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30764/statm: 3882 3334 157 482 0 3398 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15528

[startup+1.50101 s]
/proc/loadavg: 0.93 1.01 1.09 2/107 30765
/proc/meminfo: memFree=1799328/2059040 swapFree=4140192/4192956
[pid=30764] ppid=30762 vsize=31964 CPUtime=1.49
/proc/30764/stat : 30764 (pbct) R 30762 30764 30094 0 -1 4202496 7813 0 0 0 146 3 0 0 20 0 1 0 31095677 32731136 7362 1992294400 134512640 136485738 4292674944 18446744073709551615 135177460 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30764/statm: 7991 7362 157 482 0 7507 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 31964

[startup+3.10114 s]
/proc/loadavg: 0.93 1.01 1.09 2/107 30765
/proc/meminfo: memFree=1783952/2059040 swapFree=4140192/4192956
[pid=30764] ppid=30762 vsize=36712 CPUtime=3.09
/proc/30764/stat : 30764 (pbct) R 30762 30764 30094 0 -1 4202496 8987 0 0 0 305 4 0 0 24 0 1 0 31095677 37593088 8536 1992294400 134512640 136485738 4292674944 18446744073709551615 135180368 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30764/statm: 9178 8536 160 482 0 8694 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 36712

[startup+6.3004 s]
/proc/loadavg: 0.93 1.01 1.09 2/107 30765
/proc/meminfo: memFree=1696408/2059040 swapFree=4140192/4192956
[pid=30764] ppid=30762 vsize=188684 CPUtime=6.29
/proc/30764/stat : 30764 (pbct) R 30762 30764 30094 0 -1 4202496 47994 0 0 0 607 22 0 0 25 0 1 0 31095677 193212416 45422 1992294400 134512640 136485738 4292674944 18446744073709551615 134760880 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30764/statm: 47171 45423 197 482 0 46687 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 188684

[startup+12.7019 s]
/proc/loadavg: 0.94 1.01 1.08 2/107 30765
/proc/meminfo: memFree=1304320/2059040 swapFree=4140192/4192956
[pid=30764] ppid=30762 vsize=577724 CPUtime=12.68
/proc/30764/stat : 30764 (pbct) R 30762 30764 30094 0 -1 4202496 151236 0 0 0 1202 66 0 0 25 0 1 0 31095677 591589376 139629 1992294400 134512640 136485738 4292674944 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30764/statm: 144431 139630 197 482 0 143947 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 577724

[startup+25.501 s]
/proc/loadavg: 0.95 1.01 1.08 2/107 30767
/proc/meminfo: memFree=593800/2059040 swapFree=4140192/4192956
[pid=30764] ppid=30762 vsize=1270072 CPUtime=25.48
/proc/30764/stat : 30764 (pbct) R 30762 30764 30094 0 -1 4202496 337126 0 0 0 2404 144 0 0 25 0 1 0 31095677 1300553728 312198 1992294400 134512640 136485738 4292674944 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30764/statm: 317518 312199 197 482 0 317034 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1270072



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+29.0013 s]
/proc/loadavg: 0.95 1.01 1.08 2/107 30767
/proc/meminfo: memFree=22312/2059040 swapFree=4140192/4192956
[pid=30764] ppid=30762 vsize=1845264 CPUtime=28.97
/proc/30764/stat : 30764 (pbct) R 30762 30764 30094 0 -1 4202496 488124 0 0 0 2697 200 0 0 25 0 1 0 31095677 1889550336 450360 1992294400 134512640 136485738 4292674944 18446744073709551615 134658948 0 0 4096 16387 0 0 0 17 1 0 0 2
/proc/30764/statm: 461316 450360 210 482 0 460832 0
Current children cumulated CPU time (s) 28.97
Current children cumulated vsize (KiB) 1845264

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

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

[startup+29.1093 s]
/proc/loadavg: 0.95 1.01 1.08 2/107 30767
/proc/meminfo: memFree=22312/2059040 swapFree=4140192/4192956
[pid=30764] ppid=30762 vsize=0 CPUtime=29.08
/proc/30764/stat : 30764 (pbct) R 30762 30764 30094 0 -1 4194308 488127 0 0 0 2698 210 0 0 25 0 1 0 31095677 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 2
/proc/30764/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 29.08
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 29.1855
CPU time (s): 29.1586
CPU user time (s): 26.9809
CPU system time (s): 2.17767
CPU usage (%): 99.9078
Max. virtual memory (cumulated for all children) (KiB): 1845264

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.9809
system time used= 2.17767
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 488127
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= 393

runsolver used 0.047992 second user time and 0.155976 second system time

The end

Launcher Data 

Begin job on node003 at 2010-06-15 00:35:17
IDJOB=2669331
IDBENCH=2445
IDSOLVER=1170
FILE ID=node003/2669331-1276554917
PBS_JOBID= 11173480
Free space on /tmp= 62568 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-bnl2.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669331-1276554917/watcher-2669331-1276554917 -o /tmp/evaluation-result-2669331-1276554917/solver-2669331-1276554917 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669331-1276554917.opb

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

MD5SUM BENCH= 1aac4473a72704481ef90ef3ff1598a7
RANDOM SEED=1061663334

node003.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		: 3000.251
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	: 6000.50
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		: 3000.251
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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1818216 kB
Buffers:         41204 kB
Cached:         120792 kB
SwapCached:       5848 kB
Active:          77440 kB
Inactive:        97108 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1818216 kB
SwapTotal:     4192956 kB
SwapFree:      4140192 kB
Dirty:            9420 kB
Writeback:           8 kB
AnonPages:       11120 kB
Mapped:          13080 kB
Slab:            44132 kB
PageTables:       3912 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181980 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= 62564 MiB
End job on node003 at 2010-06-15 00:35:48