Trace number 2668564

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) 32.4481 32.4894

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-cycle.opb
MD5SUMa4f456875ede4549ae03268180cd603c
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of variables84737
Total number of constraints1802
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 constraints1802
Minimum length of a constraint11
Maximum length of a constraint1470
Number of terms in the objective function 9240
Biggest coefficient in the objective function 53687091200000
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 1737924154969464
Number of bits of the sum of numbers in the objective function 51
Biggest number in a constraint 48888431614361600
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 779202693141814557
Number of bits of the biggest sum of numbers60
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
4.69/4.76	c constraints 1802/0 clauses 0/0 units 622
4.69/4.76	c vars 84737
4.69/4.77	c objective 9206 + -704152371316772
32.26/32.31	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-2668564-1276553244/watcher-2668564-1276553244 -o /tmp/evaluation-result-2668564-1276553244/solver-2668564-1276553244 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668564-1276553244.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 0.99 3/106 409
/proc/meminfo: memFree=1864004/2059040 swapFree=4140216/4192956
[pid=409] ppid=407 vsize=2208 CPUtime=0
/proc/409/stat : 409 (pbct) R 407 409 32745 0 -1 4202496 261 0 0 0 0 0 0 0 20 0 1 0 30926117 2260992 183 1992294400 134512640 136485738 4288238400 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/409/statm: 552 183 151 482 0 68 0

[startup+0.0278951 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 409
/proc/meminfo: memFree=1864004/2059040 swapFree=4140216/4192956
[pid=409] ppid=407 vsize=3076 CPUtime=0.02
/proc/409/stat : 409 (pbct) R 407 409 32745 0 -1 4202496 465 0 0 0 2 0 0 0 20 0 1 0 30926117 3149824 354 1992294400 134512640 136485738 4288238400 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/409/statm: 769 355 151 482 0 285 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3076

[startup+0.101911 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 409
/proc/meminfo: memFree=1864004/2059040 swapFree=4140216/4192956
[pid=409] ppid=407 vsize=4268 CPUtime=0.09
/proc/409/stat : 409 (pbct) R 407 409 32745 0 -1 4202496 753 0 0 0 9 0 0 0 20 0 1 0 30926117 4370432 642 1992294400 134512640 136485738 4288238400 18446744073709551615 135171943 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/409/statm: 1067 642 156 482 0 583 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4268

[startup+0.300954 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 409
/proc/meminfo: memFree=1864004/2059040 swapFree=4140216/4192956
[pid=409] ppid=407 vsize=8140 CPUtime=0.29
/proc/409/stat : 409 (pbct) R 407 409 32745 0 -1 4202496 1720 0 0 0 29 0 0 0 20 0 1 0 30926117 8335360 1609 1992294400 134512640 136485738 4288238400 18446744073709551615 135857078 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/409/statm: 2035 1609 156 482 0 1551 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8140

[startup+0.701039 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 409
/proc/meminfo: memFree=1864004/2059040 swapFree=4140216/4192956
[pid=409] ppid=407 vsize=16180 CPUtime=0.69
/proc/409/stat : 409 (pbct) R 407 409 32745 0 -1 4202496 3656 0 0 0 68 1 0 0 20 0 1 0 30926117 16568320 3545 1992294400 134512640 136485738 4288238400 18446744073709551615 135869175 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/409/statm: 4045 3545 156 482 0 3561 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16180

[startup+1.50121 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 412
/proc/meminfo: memFree=1844404/2059040 swapFree=4140216/4192956
[pid=409] ppid=407 vsize=24944 CPUtime=1.49
/proc/409/stat : 409 (pbct) R 407 409 32745 0 -1 4202496 5854 0 0 0 147 2 0 0 23 0 1 0 30926117 25542656 5743 1992294400 134512640 136485738 4288238400 18446744073709551615 135177534 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/409/statm: 6236 5743 157 482 0 5752 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 24944

[startup+3.10155 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 412
/proc/meminfo: memFree=1839444/2059040 swapFree=4140216/4192956
[pid=409] ppid=407 vsize=27896 CPUtime=3.09
/proc/409/stat : 409 (pbct) R 407 409 32745 0 -1 4202496 6549 0 0 0 306 3 0 0 25 0 1 0 30926117 28565504 6438 1992294400 134512640 136485738 4288238400 18446744073709551615 135177471 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/409/statm: 6974 6438 157 482 0 6490 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 27896

[startup+6.30123 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 412
/proc/meminfo: memFree=1778064/2059040 swapFree=4140216/4192956
[pid=409] ppid=407 vsize=152388 CPUtime=6.29
/proc/409/stat : 409 (pbct) R 407 409 32745 0 -1 4202496 38803 0 0 0 611 18 0 0 25 0 1 0 30926117 156045312 37385 1992294400 134512640 136485738 4288238400 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/409/statm: 38097 37386 197 482 0 37613 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 152388

[startup+12.7006 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 412
/proc/meminfo: memFree=1388952/2059040 swapFree=4140216/4192956
[pid=409] ppid=407 vsize=533172 CPUtime=12.68
/proc/409/stat : 409 (pbct) R 407 409 32745 0 -1 4202496 139618 0 0 0 1205 63 0 0 25 0 1 0 30926117 545968128 128075 1992294400 134512640 136485738 4288238400 18446744073709551615 135850714 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/409/statm: 133293 128075 197 482 0 132809 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 533172

[startup+25.5013 s]
/proc/loadavg: 0.95 0.98 0.99 2/107 412
/proc/meminfo: memFree=695792/2059040 swapFree=4140216/4192956
[pid=409] ppid=407 vsize=1207480 CPUtime=25.47
/proc/409/stat : 409 (pbct) R 407 409 32745 0 -1 4202496 319744 0 0 0 2407 140 0 0 25 0 1 0 30926117 1236459520 295459 1992294400 134512640 136485738 4288238400 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/409/statm: 301870 295460 197 482 0 301386 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 1207480



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+32.3008 s]
/proc/loadavg: 0.95 0.98 0.99 1/107 412
/proc/meminfo: memFree=8012/2059040 swapFree=4140216/4192956
[pid=409] ppid=407 vsize=1857628 CPUtime=32.26
/proc/409/stat : 409 (pbct) D 407 409 32745 0 -1 4202496 491453 0 0 0 3022 204 0 0 25 0 1 0 30926117 1902211072 463325 1992294400 134512640 136485738 4288238400 18446744073709551615 135850441 0 0 4096 16387 18446744071562310694 0 0 17 1 0 0 0
/proc/409/statm: 464407 463325 199 482 0 463923 0
Current children cumulated CPU time (s) 32.26
Current children cumulated vsize (KiB) 1857628

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

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

[startup+32.4098 s]
/proc/loadavg: 0.95 0.98 0.99 1/107 412
/proc/meminfo: memFree=8012/2059040 swapFree=4140216/4192956
[pid=409] ppid=407 vsize=0 CPUtime=32.36
/proc/409/stat : 409 (pbct) R 407 409 32745 0 -1 4194308 491567 0 0 0 3022 214 0 0 25 0 1 0 30926117 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 2
/proc/409/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 32.36
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 32.4894
CPU time (s): 32.4481
CPU user time (s): 30.2214
CPU system time (s): 2.22666
CPU usage (%): 99.8727
Max. virtual memory (cumulated for all children) (KiB): 1857628

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 30.2214
system time used= 2.22666
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 491567
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= 74

runsolver used 0.056991 second user time and 0.169974 second system time

The end

Launcher Data 

Begin job on node010 at 2010-06-15 00:07:25
IDJOB=2668564
IDBENCH=2433
IDSOLVER=1170
FILE ID=node010/2668564-1276553244
PBS_JOBID= 11173492
Free space on /tmp= 62492 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-cycle.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668564-1276553244/watcher-2668564-1276553244 -o /tmp/evaluation-result-2668564-1276553244/solver-2668564-1276553244 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668564-1276553244.opb

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

MD5SUM BENCH= a4f456875ede4549ae03268180cd603c
RANDOM SEED=410484164

node010.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		: 3000.267
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	: 6000.53
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		: 3000.267
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1864532 kB
Buffers:         21160 kB
Cached:          96972 kB
SwapCached:       5988 kB
Active:          88656 kB
Inactive:        41992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1864532 kB
SwapTotal:     4192956 kB
SwapFree:      4140216 kB
Dirty:           10392 kB
Writeback:           0 kB
AnonPages:       10848 kB
Mapped:          13012 kB
Slab:            42120 kB
PageTables:       4004 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182688 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= 62488 MiB
End job on node010 at 2010-06-15 00:07:59