Trace number 2682926

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 fixed? (MO) 50.4753 50.4894

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-pilot.opb
MD5SUM4a9548986f1546c6026976dcefa106de
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 benchmark4.94625
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables86785
Total number of constraints2481
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 constraints2481
Minimum length of a constraint10
Maximum length of a constraint7620
Number of terms in the objective function 840
Biggest coefficient in the objective function 3784939929600
Number of bits for the biggest coefficient in the objective function 42
Sum of the numbers in the objective function 93738734889723
Number of bits of the sum of numbers in the objective function 47
Biggest number in a constraint 13851269529600000
Number of bits of the biggest number in a constraint 54
Biggest sum of numbers in a constraint 368128606591816686
Number of bits of the biggest sum of numbers59
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
17.79/17.81	c constraints 2424/0 clauses 0/0 units 7923
17.79/17.81	c vars 86785
17.79/17.81	c objective 810 + -75081519115003
50.28/50.30	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-2682926-1277487379/watcher-2682926-1277487379 -o /tmp/evaluation-result-2682926-1277487379/solver-2682926-1277487379 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682926-1277487379.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: 0.92 0.98 0.94 3/106 31081
/proc/meminfo: memFree=1779528/2059040 swapFree=4135572/4192956
[pid=31081] ppid=31079 vsize=2268 CPUtime=0
/proc/31081/stat : 31081 (pbct) R 31079 31081 30159 0 -1 4202496 278 0 0 0 0 0 0 0 20 0 1 0 124341998 2322432 198 1992294400 134512640 136421960 4294649040 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31081/statm: 567 198 146 467 0 98 0

[startup+0.109009 s]
/proc/loadavg: 0.92 0.98 0.94 3/106 31081
/proc/meminfo: memFree=1779528/2059040 swapFree=4135572/4192956
[pid=31081] ppid=31079 vsize=4308 CPUtime=0.1
/proc/31081/stat : 31081 (pbct) R 31079 31081 30159 0 -1 4202496 781 0 0 0 10 0 0 0 20 0 1 0 124341998 4411392 701 1992294400 134512640 136421960 4294649040 18446744073709551615 135152203 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31081/statm: 1077 701 146 467 0 608 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 4308

[startup+0.202018 s]
/proc/loadavg: 0.92 0.98 0.94 3/106 31081
/proc/meminfo: memFree=1779528/2059040 swapFree=4135572/4192956
[pid=31081] ppid=31079 vsize=4572 CPUtime=0.2
/proc/31081/stat : 31081 (pbct) R 31079 31081 30159 0 -1 4202496 840 0 0 0 20 0 0 0 20 0 1 0 124341998 4681728 760 1992294400 134512640 136421960 4294649040 18446744073709551615 135159024 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31081/statm: 1143 760 146 467 0 674 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 4572

[startup+0.302028 s]
/proc/loadavg: 0.92 0.98 0.94 3/106 31081
/proc/meminfo: memFree=1779528/2059040 swapFree=4135572/4192956
[pid=31081] ppid=31079 vsize=4572 CPUtime=0.3
/proc/31081/stat : 31081 (pbct) R 31079 31081 30159 0 -1 4202496 840 0 0 0 30 0 0 0 20 0 1 0 124341998 4681728 760 1992294400 134512640 136421960 4294649040 18446744073709551615 135160370 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31081/statm: 1143 760 146 467 0 674 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 4572

[startup+0.702069 s]
/proc/loadavg: 0.92 0.98 0.94 3/106 31081
/proc/meminfo: memFree=1779528/2059040 swapFree=4135572/4192956
[pid=31081] ppid=31079 vsize=4836 CPUtime=0.7
/proc/31081/stat : 31081 (pbct) R 31079 31081 30159 0 -1 4202496 895 0 0 0 70 0 0 0 21 0 1 0 124341998 4952064 815 1992294400 134512640 136421960 4294649040 18446744073709551615 135159038 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31081/statm: 1209 815 146 467 0 740 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 4836

[startup+1.50015 s]
/proc/loadavg: 0.92 0.98 0.94 2/107 31082
/proc/meminfo: memFree=1776048/2059040 swapFree=4135572/4192956
[pid=31081] ppid=31079 vsize=5456 CPUtime=1.49
/proc/31081/stat : 31081 (pbct) R 31079 31081 30159 0 -1 4202496 1050 0 0 0 149 0 0 0 23 0 1 0 124341998 5586944 970 1992294400 134512640 136421960 4294649040 18446744073709551615 135818281 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31081/statm: 1364 970 146 467 0 895 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5456

[startup+3.10031 s]
/proc/loadavg: 0.93 0.98 0.94 2/107 31082
/proc/meminfo: memFree=1770964/2059040 swapFree=4135572/4192956
[pid=31081] ppid=31079 vsize=11896 CPUtime=3.09
/proc/31081/stat : 31081 (pbct) R 31079 31081 30159 0 -1 4202496 2583 0 0 0 309 0 0 0 25 0 1 0 124341998 12181504 2503 1992294400 134512640 136421960 4294649040 18446744073709551615 135818289 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31081/statm: 2974 2503 146 467 0 2505 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 11896

[startup+6.30164 s]
/proc/loadavg: 0.93 0.98 0.94 2/107 31082
/proc/meminfo: memFree=1758440/2059040 swapFree=4135572/4192956
[pid=31081] ppid=31079 vsize=24156 CPUtime=6.29
/proc/31081/stat : 31081 (pbct) R 31079 31081 30159 0 -1 4202496 5447 0 0 0 627 2 0 0 25 0 1 0 124341998 24735744 5367 1992294400 134512640 136421960 4294649040 18446744073709551615 135159009 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31081/statm: 6039 5367 146 467 0 5570 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 24156

[startup+12.7013 s]
/proc/loadavg: 0.94 0.98 0.94 2/107 31082
/proc/meminfo: memFree=1753604/2059040 swapFree=4135572/4192956
[pid=31081] ppid=31079 vsize=29644 CPUtime=12.69
/proc/31081/stat : 31081 (pbct) R 31079 31081 30159 0 -1 4202496 6706 0 0 0 1266 3 0 0 25 0 1 0 124341998 30355456 6626 1992294400 134512640 136421960 4294649040 18446744073709551615 135159074 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31081/statm: 7411 6626 146 467 0 6942 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 29644

[startup+25.5016 s]
/proc/loadavg: 0.95 0.98 0.94 2/107 31082
/proc/meminfo: memFree=1246816/2059040 swapFree=4135572/4192956
[pid=31081] ppid=31079 vsize=563836 CPUtime=25.48
/proc/31081/stat : 31081 (pbct) R 31079 31081 30159 0 -1 4202496 147105 0 0 0 2485 63 0 0 25 0 1 0 124341998 577368064 135526 1992294400 134512640 136421960 4294649040 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31081/statm: 140959 135526 195 467 0 140490 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 563836



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+50.3012 s]
/proc/loadavg: 0.96 0.98 0.94 2/107 31084
/proc/meminfo: memFree=10436/2059040 swapFree=4134716/4192956
[pid=31081] ppid=31079 vsize=1845388 CPUtime=50.28
/proc/31081/stat : 31081 (pbct) R 31079 31081 30159 0 -1 4202496 493618 0 0 0 4817 211 0 0 25 0 1 0 124341998 1889677312 444707 1992294400 134512640 136421960 4294649040 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31081/statm: 461347 444709 195 467 0 460878 0
Current children cumulated CPU time (s) 50.28
Current children cumulated vsize (KiB) 1845388

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

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

[startup+50.4092 s]
/proc/loadavg: 0.96 0.98 0.94 2/107 31084
/proc/meminfo: memFree=10436/2059040 swapFree=4134716/4192956
[pid=31081] ppid=31079 vsize=0 CPUtime=50.39
/proc/31081/stat : 31081 (pbct) R 31079 31081 30159 0 -1 4194308 493627 0 0 0 4818 221 0 0 25 0 1 0 124341998 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/31081/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 50.39
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 50.4894
CPU time (s): 50.4753
CPU user time (s): 48.1807
CPU system time (s): 2.29465
CPU usage (%): 99.9721
Max. virtual memory (cumulated for all children) (KiB): 1845388

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 48.1807
system time used= 2.29465
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 493627
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= 2
involuntary context switches= 101

runsolver used 0.072988 second user time and 0.263959 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-25 19:36:20
IDJOB=2682926
IDBENCH=2448
IDSOLVER=1192
FILE ID=node002/2682926-1277487379
PBS_JOBID= 11190533
Free space on /tmp= 62400 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-pilot.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682926-1277487379/watcher-2682926-1277487379 -o /tmp/evaluation-result-2682926-1277487379/solver-2682926-1277487379 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682926-1277487379.opb

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

MD5SUM BENCH= 4a9548986f1546c6026976dcefa106de
RANDOM SEED=25130621

node002.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	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1780056 kB
Buffers:         26520 kB
Cached:         152884 kB
SwapCached:       9840 kB
Active:          79268 kB
Inactive:       113204 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1780056 kB
SwapTotal:     4192956 kB
SwapFree:      4135572 kB
Dirty:           16312 kB
Writeback:           0 kB
AnonPages:       11632 kB
Mapped:           8364 kB
Slab:            64440 kB
PageTables:       4160 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182504 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= 62396 MiB
End job on node002 at 2010-06-25 19:37:13