Trace number 2682894

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 fixedUNSAT 146.669 146.717

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-ship12s.opb
MD5SUM7267f3c0f02bf08ffddc8a6009c3e1e8
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 benchmark3.74243
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables82890
Total number of constraints1037
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 constraints1037
Minimum length of a constraint30
Maximum length of a constraint1470
Number of terms in the objective function 82890
Biggest coefficient in the objective function 1511023181824000
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 204819735955723812
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 1511023181824000
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 204819735955723812
Number of bits of the biggest sum of numbers58
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
1.10/1.12	c constraints 1037/0 clauses 0/0 units 223
1.10/1.12	c vars 82890
1.10/1.15	c objective 82724 + 0
138.55/138.62	c 128.619 1628.84 3177 3394492
146.44/146.58	s UNSATISFIABLE

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-2682894-1277486157/watcher-2682894-1277486157 -o /tmp/evaluation-result-2682894-1277486157/solver-2682894-1277486157 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682894-1277486157.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 0.93 3/105 31796
/proc/meminfo: memFree=1866440/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=2416 CPUtime=0
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 293 0 0 0 0 0 0 0 25 0 1 0 89909286 2473984 213 1992294400 134512640 136421960 4289269984 18446744073709551615 135153443 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31796/statm: 604 213 138 467 0 135 0

[startup+0.029979 s]
/proc/loadavg: 0.99 0.98 0.93 3/105 31796
/proc/meminfo: memFree=1866440/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=3004 CPUtime=0.02
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 468 0 0 0 2 0 0 0 25 0 1 0 89909286 3076096 355 1992294400 134512640 136421960 4289269984 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31796/statm: 751 355 138 467 0 282 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3004

[startup+0.100987 s]
/proc/loadavg: 0.99 0.98 0.93 3/105 31796
/proc/meminfo: memFree=1866440/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=5864 CPUtime=0.09
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 1300 0 0 0 9 0 0 0 25 0 1 0 89909286 6004736 847 1992294400 134512640 136421960 4289269984 18446744073709551615 135809583 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31796/statm: 1466 847 138 467 0 997 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5864

[startup+0.301008 s]
/proc/loadavg: 0.99 0.98 0.93 3/105 31796
/proc/meminfo: memFree=1866440/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=9492 CPUtime=0.29
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 2539 0 0 0 29 0 0 0 25 0 1 0 89909286 9719808 1636 1992294400 134512640 136421960 4289269984 18446744073709551615 135159031 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31796/statm: 2373 1636 140 467 0 1904 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9492

[startup+0.701049 s]
/proc/loadavg: 0.99 0.98 0.93 3/105 31796
/proc/meminfo: memFree=1866440/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=16988 CPUtime=0.69
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 4311 0 0 0 68 1 0 0 25 0 1 0 89909286 17395712 3408 1992294400 134512640 136421960 4289269984 18446744073709551615 135162334 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31796/statm: 4247 3409 145 467 0 3778 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16988

[startup+1.50113 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31797
/proc/meminfo: memFree=1846468/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=61160 CPUtime=1.49
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 14973 0 0 0 144 5 0 0 25 0 1 0 89909286 62627840 14070 1992294400 134512640 136421960 4289269984 18446744073709551615 135650561 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31796/statm: 15290 14071 195 467 0 14821 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 61160

[startup+3.1003 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31797
/proc/meminfo: memFree=1764876/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=180324 CPUtime=3.09
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 46308 0 0 0 291 18 0 0 25 0 1 0 89909286 184651776 43284 1992294400 134512640 136421960 4289269984 18446744073709551615 134706143 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31796/statm: 45081 43285 195 467 0 44612 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 180324

[startup+6.30064 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31797
/proc/meminfo: memFree=1523820/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=408976 CPUtime=6.29
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 107284 0 0 0 587 42 0 0 25 0 1 0 89909286 418791424 100542 1992294400 134512640 136421960 4289269984 18446744073709551615 135811777 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31796/statm: 102244 100543 195 467 0 101775 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 408976

[startup+12.7013 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31797
/proc/meminfo: memFree=1106064/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=839320 CPUtime=12.68
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 222734 0 0 0 1179 89 0 0 25 0 1 0 89909286 859463680 208752 1992294400 134512640 136421960 4289269984 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31796/statm: 209863 208753 195 467 0 209394 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 839320

[startup+25.5017 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31797
/proc/meminfo: memFree=267948/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=1658996 CPUtime=25.48
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 435309 0 0 0 2359 189 0 0 25 0 1 0 89909286 1698811904 398918 1992294400 134512640 136421960 4289269984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31796/statm: 414749 398918 216 467 0 414280 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1658996

[startup+51.1014 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31799
/proc/meminfo: memFree=265096/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=1661720 CPUtime=51.07
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 435977 0 0 0 4737 370 0 0 25 0 1 0 89909286 1701601280 399586 1992294400 134512640 136421960 4289269984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31796/statm: 415430 399586 217 467 0 414961 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 1661720

[startup+102.309 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31801
/proc/meminfo: memFree=261872/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=1665172 CPUtime=102.26
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 436784 0 0 0 9490 736 0 0 25 0 1 0 89909286 1705136128 400393 1992294400 134512640 136421960 4289269984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31796/statm: 416293 400393 217 467 0 415824 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 1665172

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

[startup+127.901 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31801
/proc/meminfo: memFree=259764/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=1667668 CPUtime=127.85
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 437285 0 0 0 11867 918 0 0 25 0 1 0 89909286 1707692032 400894 1992294400 134512640 136421960 4289269984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31796/statm: 416917 400894 217 467 0 416448 0
Current children cumulated CPU time (s) 127.85
Current children cumulated vsize (KiB) 1667668

[startup+134.301 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31801
/proc/meminfo: memFree=259764/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=1667668 CPUtime=134.25
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 437308 0 0 0 12463 962 0 0 25 0 1 0 89909286 1707692032 400917 1992294400 134512640 136421960 4289269984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31796/statm: 416917 400917 217 467 0 416448 0
Current children cumulated CPU time (s) 134.25
Current children cumulated vsize (KiB) 1667668

[startup+140.701 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31801
/proc/meminfo: memFree=366156/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=1533804 CPUtime=140.66
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 437401 0 0 0 13069 997 0 0 25 0 1 0 89909286 1570615296 374224 1992294400 134512640 136421960 4289269984 18446744073709551615 135801268 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31796/statm: 383451 374224 241 467 0 382982 0
Current children cumulated CPU time (s) 140.66
Current children cumulated vsize (KiB) 1533804

[startup+143.901 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31801
/proc/meminfo: memFree=366156/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=1533804 CPUtime=143.85
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 437401 0 0 0 13388 997 0 0 25 0 1 0 89909286 1570615296 374224 1992294400 134512640 136421960 4289269984 18446744073709551615 134701435 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31796/statm: 383451 374224 241 467 0 382982 0
Current children cumulated CPU time (s) 143.85
Current children cumulated vsize (KiB) 1533804

[startup+145.501 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31801
/proc/meminfo: memFree=372356/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=1436136 CPUtime=145.44
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 437401 0 0 0 13547 997 0 0 25 0 1 0 89909286 1470603264 358249 1992294400 134512640 136421960 4289269984 18446744073709551615 135801316 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31796/statm: 359034 358249 241 467 0 358565 0
Current children cumulated CPU time (s) 145.44
Current children cumulated vsize (KiB) 1436136

[startup+146.308 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31801
/proc/meminfo: memFree=430264/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=1436136 CPUtime=146.25
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202496 437401 0 0 0 13628 997 0 0 25 0 1 0 89909286 1470603264 358249 1992294400 134512640 136421960 4289269984 18446744073709551615 135801316 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31796/statm: 359034 358249 241 467 0 358565 0
Current children cumulated CPU time (s) 146.25
Current children cumulated vsize (KiB) 1436136

[startup+146.701 s]
/proc/loadavg: 0.99 0.98 0.93 2/106 31801
/proc/meminfo: memFree=430264/2059040 swapFree=4139112/4192956
[pid=31796] ppid=31794 vsize=0 CPUtime=146.64
/proc/31796/stat : 31796 (pbct) R 31794 31796 31166 0 -1 4202500 437402 0 0 0 13655 1009 0 0 25 0 1 0 89909286 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/31796/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 146.64
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 146.717
CPU time (s): 146.669
CPU user time (s): 136.559
CPU system time (s): 10.1095
CPU usage (%): 99.967
Max. virtual memory (cumulated for all children) (KiB): 1667932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 136.559
system time used= 10.1095
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 437402
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= 664

runsolver used 0.250961 second user time and 0.692894 second system time

The end

Launcher Data 

Begin job on node082 at 2010-06-25 19:15:58
IDJOB=2682894
IDBENCH=2378
IDSOLVER=1192
FILE ID=node082/2682894-1277486157
PBS_JOBID= 11190486
Free space on /tmp= 62352 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-ship12s.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682894-1277486157/watcher-2682894-1277486157 -o /tmp/evaluation-result-2682894-1277486157/solver-2682894-1277486157 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682894-1277486157.opb

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

MD5SUM BENCH= 7267f3c0f02bf08ffddc8a6009c3e1e8
RANDOM SEED=1495593358

node082.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		: 3000.215
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	: 6000.43
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		: 3000.215
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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1866968 kB
Buffers:         15772 kB
Cached:          76872 kB
SwapCached:       6340 kB
Active:          33480 kB
Inactive:        72388 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1866968 kB
SwapTotal:     4192956 kB
SwapFree:      4139112 kB
Dirty:            6848 kB
Writeback:           0 kB
AnonPages:       11992 kB
Mapped:          11840 kB
Slab:            64224 kB
PageTables:       4124 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182544 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= 62352 MiB
End job on node082 at 2010-06-25 19:18:25