Trace number 2668462

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 5.9261 5.92936

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib3/normalized-mps-v2-20-10-gesa3.opb
MD5SUMd3086c0e0af196eedd939c84273a060e
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark5531010133646
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 4230134768458
Optimality of the best value was proved NO
Number of variables18384
Total number of constraints1752
Number of constraints which are clauses48
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1704
Minimum length of a constraint2
Maximum length of a constraint311
Number of terms in the objective function 11424
Biggest coefficient in the objective function 418848431931392
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 144211309205274864
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 536870912000000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 144211309205274864
Number of bits of the biggest sum of numbers58
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
0.19/0.29	c constraints 1535/0 clauses 217/0 units 6172
0.19/0.29	c vars 18384
0.29/0.37	c objective 9526 + 318277951488
4.39/4.48	c 4.15837 282.949 0 0
5.89/5.91	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-2668462-1276574338/watcher-2668462-1276574338 -o /tmp/evaluation-result-2668462-1276574338/solver-2668462-1276574338 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668462-1276574338.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 1.03 3/106 3980
/proc/meminfo: memFree=1777808/2059040 swapFree=4135652/4192956
[pid=3980] ppid=3978 vsize=2488 CPUtime=0
/proc/3980/stat : 3980 (pbct) R 3978 3980 2849 0 -1 4202496 302 0 0 0 0 0 0 0 20 0 1 0 33037770 2547712 225 1992294400 134512640 136485738 4292966832 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/3980/statm: 622 225 151 482 0 138 0

[startup+0.023917 s]
/proc/loadavg: 1.00 1.05 1.03 3/106 3980
/proc/meminfo: memFree=1777808/2059040 swapFree=4135652/4192956
[pid=3980] ppid=3978 vsize=2752 CPUtime=0.02
/proc/3980/stat : 3980 (pbct) R 3978 3980 2849 0 -1 4202496 378 0 0 0 2 0 0 0 20 0 1 0 33037770 2818048 301 1992294400 134512640 136485738 4292966832 18446744073709551615 134530910 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/3980/statm: 688 301 151 482 0 204 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2752

[startup+0.100925 s]
/proc/loadavg: 1.00 1.05 1.03 3/106 3980
/proc/meminfo: memFree=1777808/2059040 swapFree=4135652/4192956
[pid=3980] ppid=3978 vsize=4136 CPUtime=0.09
/proc/3980/stat : 3980 (pbct) R 3978 3980 2849 0 -1 4202496 736 0 0 0 9 0 0 0 20 0 1 0 33037770 4235264 626 1992294400 134512640 136485738 4292966832 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/3980/statm: 1034 626 157 482 0 550 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4136

[startup+0.300945 s]
/proc/loadavg: 1.00 1.05 1.03 3/106 3980
/proc/meminfo: memFree=1777808/2059040 swapFree=4135652/4192956
[pid=3980] ppid=3978 vsize=7436 CPUtime=0.29
/proc/3980/stat : 3980 (pbct) R 3978 3980 2849 0 -1 4202496 1563 0 0 0 28 1 0 0 20 0 1 0 33037770 7614464 1453 1992294400 134512640 136485738 4292966832 18446744073709551615 135180344 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/3980/statm: 1859 1453 160 482 0 1375 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7436

[startup+0.700986 s]
/proc/loadavg: 1.00 1.05 1.03 3/106 3980
/proc/meminfo: memFree=1777808/2059040 swapFree=4135652/4192956
[pid=3980] ppid=3978 vsize=39920 CPUtime=0.69
/proc/3980/stat : 3980 (pbct) R 3978 3980 2849 0 -1 4202496 9655 0 0 0 64 5 0 0 21 0 1 0 33037770 40878080 9545 1992294400 134512640 136485738 4292966832 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/3980/statm: 9980 9546 198 482 0 9496 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 39920

[startup+1.50107 s]
/proc/loadavg: 1.00 1.05 1.03 2/107 3981
/proc/meminfo: memFree=1721008/2059040 swapFree=4135652/4192956
[pid=3980] ppid=3978 vsize=88884 CPUtime=1.49
/proc/3980/stat : 3980 (pbct) R 3978 3980 2849 0 -1 4202496 22627 0 0 0 140 9 0 0 23 0 1 0 33037770 91017216 21403 1992294400 134512640 136485738 4292966832 18446744073709551615 134727874 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/3980/statm: 22221 21404 198 482 0 21737 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 88884

[startup+3.10123 s]
/proc/loadavg: 1.00 1.05 1.03 2/107 3981
/proc/meminfo: memFree=1657644/2059040 swapFree=4135652/4192956
[pid=3980] ppid=3978 vsize=185052 CPUtime=3.09
/proc/3980/stat : 3980 (pbct) R 3978 3980 2849 0 -1 4202496 48479 0 0 0 288 21 0 0 25 0 1 0 33037770 189493248 45393 1992294400 134512640 136485738 4292966832 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/3980/statm: 46263 45394 198 482 0 45779 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 185052

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

[startup+4.7004 s]
/proc/loadavg: 1.00 1.05 1.03 2/107 3981
/proc/meminfo: memFree=1503636/2059040 swapFree=4135652/4192956
[pid=3980] ppid=3978 vsize=273428 CPUtime=4.69
/proc/3980/stat : 3980 (pbct) R 3978 3980 2849 0 -1 4202496 75199 0 0 0 437 32 0 0 25 0 1 0 33037770 279990272 66409 1992294400 134512640 136485738 4292966832 18446744073709551615 134673556 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/3980/statm: 68357 66409 232 482 0 67873 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 273428

[startup+5.50848 s]
/proc/loadavg: 1.00 1.05 1.03 2/107 3981
/proc/meminfo: memFree=1516780/2059040 swapFree=4135652/4192956
[pid=3980] ppid=3978 vsize=266252 CPUtime=5.5
/proc/3980/stat : 3980 (pbct) R 3978 3980 2849 0 -1 4202496 75199 0 0 0 518 32 0 0 25 0 1 0 33037770 272642048 65103 1992294400 134512640 136485738 4292966832 18446744073709551615 135839940 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/3980/statm: 66563 65103 232 482 0 66079 0
Current children cumulated CPU time (s) 5.5
Current children cumulated vsize (KiB) 266252

[startup+5.90052 s]
/proc/loadavg: 1.00 1.05 1.03 2/107 3981
/proc/meminfo: memFree=1516780/2059040 swapFree=4135652/4192956
[pid=3980] ppid=3978 vsize=251700 CPUtime=5.89
/proc/3980/stat : 3980 (pbct) R 3978 3980 2849 0 -1 4202496 75200 0 0 0 556 33 0 0 25 0 1 0 33037770 257740800 43530 1992294400 134512640 136485738 4292966832 18446744073709551615 136086046 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/3980/statm: 62925 43530 233 482 0 62441 0
Current children cumulated CPU time (s) 5.89
Current children cumulated vsize (KiB) 251700

Child status: 0
Real time (s): 5.92936
CPU time (s): 5.9261
CPU user time (s): 5.57315
CPU system time (s): 0.352946
CPU usage (%): 99.9451
Max. virtual memory (cumulated for all children) (KiB): 289076

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.57315
system time used= 0.352946
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 75202
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= 75

runsolver used 0.015997 second user time and 0.033994 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-15 05:58:58
IDJOB=2668462
IDBENCH=2554
IDSOLVER=1170
FILE ID=node002/2668462-1276574338
PBS_JOBID= 11173510
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/miplib3/normalized-mps-v2-20-10-gesa3.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668462-1276574338/watcher-2668462-1276574338 -o /tmp/evaluation-result-2668462-1276574338/solver-2668462-1276574338 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668462-1276574338.opb

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

MD5SUM BENCH= d3086c0e0af196eedd939c84273a060e
RANDOM SEED=1833422438

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:       1778336 kB
Buffers:         59580 kB
Cached:         131056 kB
SwapCached:      10520 kB
Active:          83204 kB
Inactive:       120464 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1778336 kB
SwapTotal:     4192956 kB
SwapFree:      4135652 kB
Dirty:            2988 kB
Writeback:           0 kB
AnonPages:       11532 kB
Mapped:           9256 kB
Slab:            55248 kB
PageTables:       3984 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181088 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= 62568 MiB
End job on node002 at 2010-06-15 05:59:04