Trace number 2668739

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 0.1Wrong UNSAT 39.37 39.3802

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-czprob.opb
MD5SUMb2a2d9103ca6e5798123e19b8527d11e
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark232914362812081
Best CPU time to get the best result obtained on this benchmark1800.46
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 231334362819826
Optimality of the best value was proved NO
Number of variables98820
Total number of constraints927
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 constraints927
Minimum length of a constraint30
Maximum length of a constraint11190
Number of terms in the objective function 98250
Biggest coefficient in the objective function 16496969383936000
Number of bits for the biggest coefficient in the objective function 54
Sum of the numbers in the objective function 33458351340667288266
Number of bits of the sum of numbers in the objective function 65
Biggest number in a constraint 16496969383936000
Number of bits of the biggest number in a constraint 54
Biggest sum of numbers in a constraint 33458351340667288266
Number of bits of the biggest sum of numbers65
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
1.29/1.36	c constraints 917/0 clauses 0/0 units 14451
1.29/1.36	c vars 98820
5.79/5.86	c objective 88942 + -2580476124835562756
31.28/31.30	c 29.3995 1721.34 0 0
39.18/39.23	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-2668739-1276552115/watcher-2668739-1276552115 -o /tmp/evaluation-result-2668739-1276552115/solver-2668739-1276552115 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668739-1276552115.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: 1.00 1.05 1.02 3/106 31433
/proc/meminfo: memFree=1854700/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=2488 CPUtime=0
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 301 0 0 0 0 0 0 0 20 0 1 0 30797966 2547712 224 1992294400 134512640 136485738 4294372112 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31433/statm: 622 224 151 482 0 138 0

[startup+0.014585 s]
/proc/loadavg: 1.00 1.05 1.02 3/106 31433
/proc/meminfo: memFree=1854700/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=2752 CPUtime=0.01
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 351 0 0 0 1 0 0 0 20 0 1 0 30797966 2818048 274 1992294400 134512640 136485738 4294372112 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31433/statm: 688 276 151 482 0 204 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2752

[startup+0.101594 s]
/proc/loadavg: 1.00 1.05 1.02 3/106 31433
/proc/meminfo: memFree=1854700/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=5116 CPUtime=0.09
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 954 0 0 0 9 0 0 0 20 0 1 0 30797966 5238784 730 1992294400 134512640 136485738 4294372112 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31433/statm: 1279 734 151 482 0 795 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5116

[startup+0.301614 s]
/proc/loadavg: 1.00 1.05 1.02 3/106 31433
/proc/meminfo: memFree=1854700/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=9564 CPUtime=0.29
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 2640 0 0 0 28 1 0 0 20 0 1 0 30797966 9793536 1740 1992294400 134512640 136485738 4294372112 18446744073709551615 135411158 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31433/statm: 2391 1741 151 482 0 1907 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9564

[startup+0.701654 s]
/proc/loadavg: 1.00 1.05 1.02 3/106 31433
/proc/meminfo: memFree=1854700/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=14140 CPUtime=0.69
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 3680 0 0 0 68 1 0 0 21 0 1 0 30797966 14479360 2780 1992294400 134512640 136485738 4294372112 18446744073709551615 135415649 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31433/statm: 3535 2781 157 482 0 3051 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14140

[startup+1.50173 s]
/proc/loadavg: 1.00 1.05 1.02 2/107 31434
/proc/meminfo: memFree=1838200/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=29008 CPUtime=1.49
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 7084 0 0 0 146 3 0 0 23 0 1 0 30797966 29704192 6184 1992294400 134512640 136485738 4294372112 18446744073709551615 135180333 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31433/statm: 7252 6184 160 482 0 6768 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 29008

[startup+3.1009 s]
/proc/loadavg: 1.00 1.05 1.02 2/107 31434
/proc/meminfo: memFree=1829892/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=29008 CPUtime=3.09
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 7084 0 0 0 306 3 0 0 25 0 1 0 30797966 29704192 6184 1992294400 134512640 136485738 4294372112 18446744073709551615 135180290 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31433/statm: 7252 6184 160 482 0 6768 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 29008

[startup+6.30122 s]
/proc/loadavg: 1.00 1.05 1.02 2/107 31434
/proc/meminfo: memFree=1829892/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=77064 CPUtime=6.29
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 18948 0 0 0 621 8 0 0 25 0 1 0 30797966 78913536 18048 1992294400 134512640 136485738 4294372112 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31433/statm: 19266 18049 197 482 0 18782 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 77064

[startup+12.7009 s]
/proc/loadavg: 1.00 1.05 1.02 2/107 31436
/proc/meminfo: memFree=1397628/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=512292 CPUtime=12.68
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 134048 0 0 0 1211 57 0 0 25 0 1 0 30797966 524587008 123210 1992294400 134512640 136485738 4294372112 18446744073709551615 135317439 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31433/statm: 128073 123211 197 482 0 127589 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 512292

[startup+25.5011 s]
/proc/loadavg: 1.00 1.05 1.02 2/107 31436
/proc/meminfo: memFree=285968/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=1628192 CPUtime=25.49
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 426884 0 0 0 2373 176 0 0 25 0 1 0 30797966 1667268608 394738 1992294400 134512640 136485738 4294372112 18446744073709551615 134906343 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31433/statm: 407048 394738 210 482 0 406564 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1628192

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

[startup+31.9088 s]
/proc/loadavg: 1.00 1.05 1.01 2/107 31436
/proc/meminfo: memFree=193836/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=1703560 CPUtime=31.89
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 463720 0 0 0 3000 189 0 0 25 0 1 0 30797966 1744445440 414367 1992294400 134512640 136485738 4294372112 18446744073709551615 134728885 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31433/statm: 425890 414367 246 482 0 425406 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 1703560

[startup+35.1011 s]
/proc/loadavg: 1.00 1.05 1.01 2/107 31436
/proc/meminfo: memFree=258068/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=1629328 CPUtime=35.09
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 463720 0 0 0 3319 190 0 0 25 0 1 0 30797966 1668431872 398341 1992294400 134512640 136485738 4294372112 18446744073709551615 135839796 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31433/statm: 407332 398341 246 482 0 406848 0
Current children cumulated CPU time (s) 35.09
Current children cumulated vsize (KiB) 1629328

[startup+36.7003 s]
/proc/loadavg: 1.00 1.04 1.01 2/107 31436
/proc/meminfo: memFree=258068/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=1629328 CPUtime=36.68
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 463720 0 0 0 3478 190 0 0 25 0 1 0 30797966 1668431872 398341 1992294400 134512640 136485738 4294372112 18446744073709551615 134720160 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31433/statm: 407332 398341 246 482 0 406848 0
Current children cumulated CPU time (s) 36.68
Current children cumulated vsize (KiB) 1629328

[startup+38.3004 s]
/proc/loadavg: 1.00 1.04 1.01 2/107 31436
/proc/meminfo: memFree=258068/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=1623172 CPUtime=38.28
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 463720 0 0 0 3638 190 0 0 25 0 1 0 30797966 1662128128 396802 1992294400 134512640 136485738 4294372112 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31433/statm: 405793 396802 246 482 0 405309 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 1623172

[startup+39.1005 s]
/proc/loadavg: 1.00 1.04 1.01 2/107 31436
/proc/meminfo: memFree=264144/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=1590408 CPUtime=39.08
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202496 463720 0 0 0 3717 191 0 0 25 0 1 0 30797966 1628577792 390960 1992294400 134512640 136485738 4294372112 18446744073709551615 134604072 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31433/statm: 397602 390960 246 482 0 397118 0
Current children cumulated CPU time (s) 39.08
Current children cumulated vsize (KiB) 1590408

[startup+39.3005 s]
/proc/loadavg: 1.00 1.04 1.01 2/107 31436
/proc/meminfo: memFree=264144/2059040 swapFree=4134576/4192956
[pid=31433] ppid=31431 vsize=0 CPUtime=39.28
/proc/31433/stat : 31433 (pbct) R 31431 31433 31218 0 -1 4202500 463721 0 0 0 3730 198 0 0 25 0 1 0 30797966 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/31433/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 39.28
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 39.3802
CPU time (s): 39.37
CPU user time (s): 37.3073
CPU system time (s): 2.06269
CPU usage (%): 99.9741
Max. virtual memory (cumulated for all children) (KiB): 1762512

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 37.3073
system time used= 2.06269
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 463721
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= 123

runsolver used 0.071989 second user time and 0.186971 second system time

The end

Launcher Data 

Begin job on node017 at 2010-06-14 23:48:36
IDJOB=2668739
IDBENCH=2429
IDSOLVER=1170
FILE ID=node017/2668739-1276552115
PBS_JOBID= 11173489
Free space on /tmp= 62420 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-czprob.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668739-1276552115/watcher-2668739-1276552115 -o /tmp/evaluation-result-2668739-1276552115/solver-2668739-1276552115 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668739-1276552115.opb

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

MD5SUM BENCH= b2a2d9103ca6e5798123e19b8527d11e
RANDOM SEED=29568185

node017.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		: 3000.201
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	: 6000.40
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		: 3000.201
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	: 5599.51
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1855220 kB
Buffers:         19064 kB
Cached:         104584 kB
SwapCached:      11648 kB
Active:          85304 kB
Inactive:        52384 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1855220 kB
SwapTotal:     4192956 kB
SwapFree:      4134576 kB
Dirty:            7480 kB
Writeback:           0 kB
AnonPages:       12340 kB
Mapped:           9216 kB
Slab:            44500 kB
PageTables:       3944 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   184232 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= 62420 MiB
End job on node017 at 2010-06-14 23:49:15