Trace number 2668735

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 4.34234 4.35275

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/
MIPLIB/miplib/normalized-mps-v2-20-10-gen.opb
MD5SUMdfc42b4b35cdbc52ce627bfbd0fd8e3d
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark59412689511365
Best CPU time to get the best result obtained on this benchmark1800.45
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 68194326759492
Optimality of the best value was proved NO
Number of variables19038
Total number of constraints930
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 constraints930
Minimum length of a constraint5
Maximum length of a constraint264
Number of terms in the objective function 13134
Biggest coefficient in the objective function 3456331981783040
Number of bits for the biggest coefficient in the objective function 52
Sum of the numbers in the objective function 2106245048465744992
Number of bits of the sum of numbers in the objective function 61
Biggest number in a constraint 3456331981783040
Number of bits of the biggest number in a constraint 52
Biggest sum of numbers in a constraint 2106245048465744992
Number of bits of the biggest sum of numbers61
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
0.19/0.28	c constraints 775/0 clauses 109/0 units 6589
0.19/0.28	c vars 19038
0.49/0.51	c objective 9839 + 8259253562368
3.19/3.27	c 3.00754 211.578 0 0
4.29/4.33	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-2668735-1276560361/watcher-2668735-1276560361 -o /tmp/evaluation-result-2668735-1276560361/solver-2668735-1276560361 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668735-1276560361.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: 1.93 2.05 1.90 3/106 31160
/proc/meminfo: memFree=1826548/2059040 swapFree=4140192/4192956
[pid=31160] ppid=31158 vsize=2488 CPUtime=0
/proc/31160/stat : 31160 (pbct) R 31158 31160 30889 0 -1 4202496 302 0 0 0 0 0 0 0 20 0 1 0 31640051 2547712 225 1992294400 134512640 136485738 4292630880 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31160/statm: 622 225 151 482 0 138 0

[startup+0.0915501 s]
/proc/loadavg: 1.93 2.05 1.90 3/106 31160
/proc/meminfo: memFree=1826548/2059040 swapFree=4140192/4192956
[pid=31160] ppid=31158 vsize=3340 CPUtime=0.08
/proc/31160/stat : 31160 (pbct) R 31158 31160 30889 0 -1 4202496 558 0 0 0 8 0 0 0 20 0 1 0 31640051 3420160 448 1992294400 134512640 136485738 4292630880 18446744073709551615 135177532 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31160/statm: 835 448 156 482 0 351 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3340

[startup+0.10155 s]
/proc/loadavg: 1.93 2.05 1.90 3/106 31160
/proc/meminfo: memFree=1826548/2059040 swapFree=4140192/4192956
[pid=31160] ppid=31158 vsize=3340 CPUtime=0.09
/proc/31160/stat : 31160 (pbct) R 31158 31160 30889 0 -1 4202496 565 0 0 0 9 0 0 0 20 0 1 0 31640051 3420160 455 1992294400 134512640 136485738 4292630880 18446744073709551615 135857078 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31160/statm: 835 455 156 482 0 351 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3340

[startup+0.301567 s]
/proc/loadavg: 1.93 2.05 1.90 3/106 31160
/proc/meminfo: memFree=1826548/2059040 swapFree=4140192/4192956
[pid=31160] ppid=31158 vsize=5980 CPUtime=0.29
/proc/31160/stat : 31160 (pbct) R 31158 31160 30889 0 -1 4202496 1216 0 0 0 29 0 0 0 20 0 1 0 31640051 6123520 1106 1992294400 134512640 136485738 4292630880 18446744073709551615 135180311 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31160/statm: 1495 1106 160 482 0 1011 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5980

[startup+0.701599 s]
/proc/loadavg: 1.93 2.05 1.90 3/106 31160
/proc/meminfo: memFree=1826548/2059040 swapFree=4140192/4192956
[pid=31160] ppid=31158 vsize=26804 CPUtime=0.69
/proc/31160/stat : 31160 (pbct) R 31158 31160 30889 0 -1 4202496 6315 0 0 0 65 4 0 0 21 0 1 0 31640051 27447296 6205 1992294400 134512640 136485738 4292630880 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31160/statm: 6701 6206 198 482 0 6217 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 26804

[startup+1.50168 s]
/proc/loadavg: 1.93 2.05 1.90 2/107 31161
/proc/meminfo: memFree=1780784/2059040 swapFree=4140192/4192956
[pid=31160] ppid=31158 vsize=84564 CPUtime=1.49
/proc/31160/stat : 31160 (pbct) R 31158 31160 30889 0 -1 4202496 21496 0 0 0 138 11 0 0 23 0 1 0 31640051 86593536 20272 1992294400 134512640 136485738 4292630880 18446744073709551615 135839696 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/31160/statm: 21141 20272 198 482 0 20657 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 84564

[startup+3.10079 s]
/proc/loadavg: 1.93 2.05 1.90 2/107 31161
/proc/meminfo: memFree=1704400/2059040 swapFree=4140192/4192956
[pid=31160] ppid=31158 vsize=208872 CPUtime=3.08
/proc/31160/stat : 31160 (pbct) R 31158 31160 30889 0 -1 4202496 53797 0 0 0 283 25 0 0 25 0 1 0 31640051 213884928 50276 1992294400 134512640 136485738 4292630880 18446744073709551615 134949531 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31160/statm: 52218 50276 210 482 0 51734 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 208872

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

[startup+3.90086 s]
/proc/loadavg: 1.85 2.03 1.90 2/107 31161
/proc/meminfo: memFree=1624172/2059040 swapFree=4140192/4192956
[pid=31160] ppid=31158 vsize=202980 CPUtime=3.88
/proc/31160/stat : 31160 (pbct) R 31158 31160 30889 0 -1 4202496 55794 0 0 0 362 26 0 0 25 0 1 0 31640051 207851520 49350 1992294400 134512640 136485738 4292630880 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31160/statm: 50745 49350 246 482 0 50261 0
Current children cumulated CPU time (s) 3.88
Current children cumulated vsize (KiB) 202980

[startup+4.30089 s]
/proc/loadavg: 1.85 2.03 1.90 2/107 31161
/proc/meminfo: memFree=1635952/2059040 swapFree=4140192/4192956
[pid=31160] ppid=31158 vsize=191600 CPUtime=4.29
/proc/31160/stat : 31160 (pbct) R 31158 31160 30889 0 -1 4202496 55795 0 0 0 403 26 0 0 25 0 1 0 31640051 196198400 47551 1992294400 134512640 136485738 4292630880 18446744073709551615 135839925 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31160/statm: 47900 47551 247 482 0 47416 0
Current children cumulated CPU time (s) 4.29
Current children cumulated vsize (KiB) 191600

Child status: 0
Real time (s): 4.35275
CPU time (s): 4.34234
CPU user time (s): 4.05538
CPU system time (s): 0.286956
CPU usage (%): 99.7609
Max. virtual memory (cumulated for all children) (KiB): 212996

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.05538
system time used= 0.286956
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 55795
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= 64

runsolver used 0.007998 second user time and 0.032994 second system time

The end

Launcher Data 

Begin job on node003 at 2010-06-15 02:06:01
IDJOB=2668735
IDBENCH=2475
IDSOLVER=1170
FILE ID=node003/2668735-1276560361
PBS_JOBID= 11173499
Free space on /tmp= 62572 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-gen.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668735-1276560361/watcher-2668735-1276560361 -o /tmp/evaluation-result-2668735-1276560361/solver-2668735-1276560361 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668735-1276560361.opb

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

MD5SUM BENCH= dfc42b4b35cdbc52ce627bfbd0fd8e3d
RANDOM SEED=622399567

node003.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		: 3000.251
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	: 6000.50
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		: 3000.251
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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1827076 kB
Buffers:         46200 kB
Cached:         107428 kB
SwapCached:       5848 kB
Active:          70780 kB
Inactive:        95564 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1827076 kB
SwapTotal:     4192956 kB
SwapFree:      4140192 kB
Dirty:            2796 kB
Writeback:          28 kB
AnonPages:       11324 kB
Mapped:          13020 kB
Slab:            43720 kB
PageTables:       4000 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182444 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= 62572 MiB
End job on node003 at 2010-06-15 02:06:06