Trace number 2681961

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) 34.6697 34.6809

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-misc04.opb
MD5SUMbb1646c210ed722ee76932cafe9701aa
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
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables146276
Total number of constraints1699
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)10
Number of constraints which are nor clauses,nor cardinality constraints1689
Minimum length of a constraint3
Maximum length of a constraint5071
Number of terms in the objective function 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 43188899594881920000
Number of bits of the biggest number in a constraint 66
Biggest sum of numbers in a constraint 133861748414790079675
Number of bits of the biggest sum of numbers67
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.01	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.01	c Based on OpenSMT/CT 20091015
12.49/12.54	c constraints 1674/0 clauses 0/0 units 4205
12.49/12.54	c vars 146276
12.49/12.54	c objective 31 + 0
34.49/34.51	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-2681961-1277488342/watcher-2681961-1277488342 -o /tmp/evaluation-result-2681961-1277488342/solver-2681961-1277488342 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681961-1277488342.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 0.97 3/105 28275
/proc/meminfo: memFree=1798928/2059040 swapFree=4140332/4192956
[pid=28275] ppid=28273 vsize=2136 CPUtime=0
/proc/28275/stat : 28275 (pbct) R 28273 28275 27558 0 -1 4202496 255 0 0 0 0 0 0 0 18 0 1 0 90128402 2187264 175 1992294400 134512640 136421960 4287558384 18446744073709551615 135818454 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28275/statm: 534 175 143 467 0 65 0

[startup+0.060804 s]
/proc/loadavg: 0.92 0.98 0.97 3/105 28275
/proc/meminfo: memFree=1798928/2059040 swapFree=4140332/4192956
[pid=28275] ppid=28273 vsize=2136 CPUtime=0.06
/proc/28275/stat : 28275 (pbct) R 28273 28275 27558 0 -1 4202496 255 0 0 0 6 0 0 0 18 0 1 0 90128402 2187264 175 1992294400 134512640 136421960 4287558384 18446744073709551615 135160311 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28275/statm: 534 175 143 467 0 65 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2136

[startup+0.101847 s]
/proc/loadavg: 0.92 0.98 0.97 3/105 28275
/proc/meminfo: memFree=1798928/2059040 swapFree=4140332/4192956
[pid=28275] ppid=28273 vsize=2136 CPUtime=0.1
/proc/28275/stat : 28275 (pbct) R 28273 28275 27558 0 -1 4202496 255 0 0 0 10 0 0 0 18 0 1 0 90128402 2187264 175 1992294400 134512640 136421960 4287558384 18446744073709551615 135158959 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28275/statm: 534 175 143 467 0 65 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2136

[startup+0.301842 s]
/proc/loadavg: 0.92 0.98 0.97 3/105 28275
/proc/meminfo: memFree=1798928/2059040 swapFree=4140332/4192956
[pid=28275] ppid=28273 vsize=2268 CPUtime=0.3
/proc/28275/stat : 28275 (pbct) R 28273 28275 27558 0 -1 4202496 271 0 0 0 30 0 0 0 18 0 1 0 90128402 2322432 191 1992294400 134512640 136421960 4287558384 18446744073709551615 135158939 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28275/statm: 567 191 146 467 0 98 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2268

[startup+0.701884 s]
/proc/loadavg: 0.92 0.98 0.97 3/105 28275
/proc/meminfo: memFree=1798928/2059040 swapFree=4140332/4192956
[pid=28275] ppid=28273 vsize=2408 CPUtime=0.7
/proc/28275/stat : 28275 (pbct) R 28273 28275 27558 0 -1 4202496 311 0 0 0 70 0 0 0 18 0 1 0 90128402 2465792 231 1992294400 134512640 136421960 4287558384 18446744073709551615 135159062 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28275/statm: 602 231 146 467 0 133 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 2408

[startup+1.50196 s]
/proc/loadavg: 0.92 0.98 0.97 3/106 28276
/proc/meminfo: memFree=1798424/2059040 swapFree=4140332/4192956
[pid=28275] ppid=28273 vsize=2808 CPUtime=1.5
/proc/28275/stat : 28275 (pbct) R 28273 28275 27558 0 -1 4202496 403 0 0 0 150 0 0 0 20 0 1 0 90128402 2875392 323 1992294400 134512640 136421960 4287558384 18446744073709551615 135160353 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28275/statm: 702 323 146 467 0 233 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 2808

[startup+3.10113 s]
/proc/loadavg: 0.93 0.98 0.97 2/106 28276
/proc/meminfo: memFree=1797680/2059040 swapFree=4140332/4192956
[pid=28275] ppid=28273 vsize=3612 CPUtime=3.1
/proc/28275/stat : 28275 (pbct) R 28273 28275 27558 0 -1 4202496 618 0 0 0 310 0 0 0 25 0 1 0 90128402 3698688 538 1992294400 134512640 136421960 4287558384 18446744073709551615 135158981 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28275/statm: 903 538 146 467 0 434 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 3612

[startup+6.30147 s]
/proc/loadavg: 0.93 0.98 0.97 2/106 28276
/proc/meminfo: memFree=1795944/2059040 swapFree=4140332/4192956
[pid=28275] ppid=28273 vsize=5384 CPUtime=6.29
/proc/28275/stat : 28275 (pbct) R 28273 28275 27558 0 -1 4202496 1049 0 0 0 629 0 0 0 25 0 1 0 90128402 5513216 969 1992294400 134512640 136421960 4287558384 18446744073709551615 135159069 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28275/statm: 1346 969 146 467 0 877 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 5384

[startup+12.7011 s]
/proc/loadavg: 0.94 0.98 0.97 2/106 28276
/proc/meminfo: memFree=1776724/2059040 swapFree=4140332/4192956
[pid=28275] ppid=28273 vsize=53136 CPUtime=12.69
/proc/28275/stat : 28275 (pbct) R 28273 28275 27558 0 -1 4202496 12591 0 0 0 1264 5 0 0 25 0 1 0 90128402 54411264 12511 1992294400 134512640 136421960 4287558384 18446744073709551615 134710193 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28275/statm: 13284 12511 194 467 0 12815 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 53136

[startup+25.5015 s]
/proc/loadavg: 0.95 0.98 0.97 2/106 28276
/proc/meminfo: memFree=854288/2059040 swapFree=4140332/4192956
[pid=28275] ppid=28273 vsize=998544 CPUtime=25.48
/proc/28275/stat : 28275 (pbct) R 28273 28275 27558 0 -1 4202496 263473 0 0 0 2439 109 0 0 25 0 1 0 90128402 1022509056 241336 1992294400 134512640 136421960 4287558384 18446744073709551615 134706995 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28275/statm: 249636 241336 195 467 0 249167 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 998544



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+34.5015 s]
/proc/loadavg: 0.95 0.98 0.97 2/106 28276
/proc/meminfo: memFree=15072/2059040 swapFree=4140332/4192956
[pid=28275] ppid=28273 vsize=1872236 CPUtime=34.49
/proc/28275/stat : 28275 (pbct) R 28273 28275 27558 0 -1 4202496 489726 0 0 0 3252 197 0 0 25 0 1 0 90128402 1917169664 453721 1992294400 134512640 136421960 4287558384 18446744073709551615 135829965 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/28275/statm: 468059 453729 205 467 0 467590 0
Current children cumulated CPU time (s) 34.49
Current children cumulated vsize (KiB) 1872236

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

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

[startup+34.6095 s]
/proc/loadavg: 0.95 0.98 0.97 2/106 28276
/proc/meminfo: memFree=15072/2059040 swapFree=4140332/4192956
[pid=28275] ppid=28273 vsize=0 CPUtime=34.59
/proc/28275/stat : 28275 (pbct) R 28273 28275 27558 0 -1 4194308 489786 0 0 0 3252 207 0 0 25 0 1 0 90128402 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/28275/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 34.59
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 34.6809
CPU time (s): 34.6697
CPU user time (s): 32.5251
CPU system time (s): 2.14467
CPU usage (%): 99.9679
Max. virtual memory (cumulated for all children) (KiB): 1872236

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 32.5251
system time used= 2.14467
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 489786
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= 40

runsolver used 0.06499 second user time and 0.173973 second system time

The end

Launcher Data 

Begin job on node081 at 2010-06-25 19:52:23
IDJOB=2681961
IDBENCH=2486
IDSOLVER=1192
FILE ID=node081/2681961-1277488342
PBS_JOBID= 11190487
Free space on /tmp= 121780 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-misc04.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681961-1277488342/watcher-2681961-1277488342 -o /tmp/evaluation-result-2681961-1277488342/solver-2681961-1277488342 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681961-1277488342.opb

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

MD5SUM BENCH= bb1646c210ed722ee76932cafe9701aa
RANDOM SEED=1555192373

node081.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		: 3000.212
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	: 6000.42
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		: 3000.212
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:       1799332 kB
Buffers:         47308 kB
Cached:         113292 kB
SwapCached:       5772 kB
Active:          68428 kB
Inactive:       105640 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1799332 kB
SwapTotal:     4192956 kB
SwapFree:      4140332 kB
Dirty:            8968 kB
Writeback:           0 kB
AnonPages:       11580 kB
Mapped:          12156 kB
Slab:            63792 kB
PageTables:       3988 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180620 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= 121776 MiB
End job on node081 at 2010-06-25 19:53:00