Trace number 2669338

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) 81.2376 81.2869

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-80bau3b.opb
MD5SUMb2e886c31e082dd9f659f139112a12d7
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark9.35358
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables228540
Total number of constraints5191
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 constraints5191
Minimum length of a constraint10
Maximum length of a constraint3330
Number of terms in the objective function 182620
Biggest coefficient in the objective function 5315022028800000
Number of bits for the biggest coefficient in the objective function 53
Sum of the numbers in the objective function 5549881707922194982
Number of bits of the sum of numbers in the objective function 63
Biggest number in a constraint 5315022028800000
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 5549881707922194982
Number of bits of the biggest sum of numbers63
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
3.39/3.41	c constraints 5022/0 clauses 16/0 units 46160
3.39/3.41	c vars 228540
52.95/53.05	c objective 156120 + -113865054041987755
81.04/81.11	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-2669338-1276556078/watcher-2669338-1276556078 -o /tmp/evaluation-result-2669338-1276556078/solver-2669338-1276556078 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669338-1276556078.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: 1.80 1.99 1.70 3/106 857
/proc/meminfo: memFree=1852948/2059040 swapFree=4140216/4192956
[pid=857] ppid=855 vsize=2208 CPUtime=0
/proc/857/stat : 857 (pbct) R 855 857 32745 0 -1 4202496 262 0 0 0 0 0 0 0 18 0 1 0 31209578 2260992 184 1992294400 134512640 136485738 4289099280 18446744073709551615 135565571 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/857/statm: 552 184 151 482 0 68 0

[startup+0.0435819 s]
/proc/loadavg: 1.80 1.99 1.70 3/106 857
/proc/meminfo: memFree=1852948/2059040 swapFree=4140216/4192956
[pid=857] ppid=855 vsize=3076 CPUtime=0.04
/proc/857/stat : 857 (pbct) R 855 857 32745 0 -1 4202496 511 0 0 0 4 0 0 0 20 0 1 0 31209578 3149824 400 1992294400 134512640 136485738 4289099280 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/857/statm: 769 400 151 482 0 285 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3076

[startup+0.101593 s]
/proc/loadavg: 1.80 1.99 1.70 3/106 857
/proc/meminfo: memFree=1852948/2059040 swapFree=4140216/4192956
[pid=857] ppid=855 vsize=5424 CPUtime=0.09
/proc/857/stat : 857 (pbct) R 855 857 32745 0 -1 4202496 1149 0 0 0 9 0 0 0 20 0 1 0 31209578 5554176 827 1992294400 134512640 136485738 4289099280 18446744073709551615 134517470 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/857/statm: 1356 836 151 482 0 872 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5424

[startup+0.300637 s]
/proc/loadavg: 1.80 1.99 1.70 3/106 857
/proc/meminfo: memFree=1852948/2059040 swapFree=4140216/4192956
[pid=857] ppid=855 vsize=9564 CPUtime=0.29
/proc/857/stat : 857 (pbct) R 855 857 32745 0 -1 4202496 2668 0 0 0 29 0 0 0 20 0 1 0 31209578 9793536 1767 1992294400 134512640 136485738 4289099280 18446744073709551615 135180858 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/857/statm: 2391 1767 151 482 0 1907 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9564

[startup+0.700721 s]
/proc/loadavg: 1.80 1.99 1.70 3/106 857
/proc/meminfo: memFree=1852948/2059040 swapFree=4140216/4192956
[pid=857] ppid=855 vsize=16564 CPUtime=0.69
/proc/857/stat : 857 (pbct) R 855 857 32745 0 -1 4202496 5064 0 0 0 68 1 0 0 21 0 1 0 31209578 16961536 3136 1992294400 134512640 136485738 4289099280 18446744073709551615 134540993 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/857/statm: 4141 3136 153 482 0 3657 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16564

[startup+1.50089 s]
/proc/loadavg: 1.80 1.99 1.70 2/107 858
/proc/meminfo: memFree=1837688/2059040 swapFree=4140216/4192956
[pid=857] ppid=855 vsize=26848 CPUtime=1.49
/proc/857/stat : 857 (pbct) R 855 857 32745 0 -1 4202496 7617 0 0 0 147 2 0 0 23 0 1 0 31209578 27492352 5689 1992294400 134512640 136485738 4289099280 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/857/statm: 6712 5689 157 482 0 6228 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 26848

[startup+3.10123 s]
/proc/loadavg: 1.80 1.99 1.70 2/107 858
/proc/meminfo: memFree=1819832/2059040 swapFree=4140216/4192956
[pid=857] ppid=855 vsize=55376 CPUtime=3.09
/proc/857/stat : 857 (pbct) R 855 857 32745 0 -1 4202496 14469 0 0 0 304 5 0 0 25 0 1 0 31209578 56705024 12541 1992294400 134512640 136485738 4289099280 18446744073709551615 135848215 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/857/statm: 13844 12541 157 482 0 13360 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 55376

[startup+6.30091 s]
/proc/loadavg: 1.74 1.97 1.70 2/107 858
/proc/meminfo: memFree=1797512/2059040 swapFree=4140216/4192956
[pid=857] ppid=855 vsize=60704 CPUtime=6.29
/proc/857/stat : 857 (pbct) R 855 857 32745 0 -1 4202496 15780 0 0 0 623 6 0 0 25 0 1 0 31209578 62160896 13852 1992294400 134512640 136485738 4289099280 18446744073709551615 134539113 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/857/statm: 15176 13852 160 482 0 14692 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 60704

[startup+12.7013 s]
/proc/loadavg: 1.68 1.95 1.70 2/107 858
/proc/meminfo: memFree=1797636/2059040 swapFree=4140216/4192956
[pid=857] ppid=855 vsize=60704 CPUtime=12.69
/proc/857/stat : 857 (pbct) R 855 857 32745 0 -1 4202496 15780 0 0 0 1263 6 0 0 25 0 1 0 31209578 62160896 13852 1992294400 134512640 136485738 4289099280 18446744073709551615 135180272 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/857/statm: 15176 13852 160 482 0 14692 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 60704

[startup+25.502 s]
/proc/loadavg: 1.53 1.91 1.68 2/107 860
/proc/meminfo: memFree=1797636/2059040 swapFree=4140216/4192956
[pid=857] ppid=855 vsize=60704 CPUtime=25.49
/proc/857/stat : 857 (pbct) R 855 857 32745 0 -1 4202496 15780 0 0 0 2543 6 0 0 25 0 1 0 31209578 62160896 13852 1992294400 134512640 136485738 4289099280 18446744073709551615 135180333 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/857/statm: 15176 13852 160 482 0 14692 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 60704

[startup+51.1005 s]
/proc/loadavg: 1.35 1.83 1.66 2/107 860
/proc/meminfo: memFree=1797636/2059040 swapFree=4140216/4192956
[pid=857] ppid=855 vsize=60704 CPUtime=51.05
/proc/857/stat : 857 (pbct) R 855 857 32745 0 -1 4202496 15780 0 0 0 5099 6 0 0 25 0 1 0 31209578 62160896 13852 1992294400 134512640 136485738 4289099280 18446744073709551615 135180333 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/857/statm: 15176 13852 160 482 0 14692 0
Current children cumulated CPU time (s) 51.05
Current children cumulated vsize (KiB) 60704



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+81.1018 s]
/proc/loadavg: 1.21 1.75 1.64 2/107 860
/proc/meminfo: memFree=43780/2059040 swapFree=4140216/4192956
[pid=857] ppid=855 vsize=1884044 CPUtime=81.04
/proc/857/stat : 857 (pbct) R 855 857 32745 0 -1 4202496 494233 0 0 0 7886 218 0 0 25 0 1 0 31209578 1929261056 452038 1992294400 134512640 136485738 4289099280 18446744073709551615 135868589 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/857/statm: 471011 452046 198 482 0 470527 0
Current children cumulated CPU time (s) 81.04
Current children cumulated vsize (KiB) 1884044

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

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

[startup+81.2099 s]
/proc/loadavg: 1.21 1.75 1.64 2/107 860
/proc/meminfo: memFree=43780/2059040 swapFree=4140216/4192956
[pid=857] ppid=855 vsize=0 CPUtime=81.16
/proc/857/stat : 857 (pbct) R 855 857 32745 0 -1 4194308 495050 0 0 0 7887 229 0 0 25 0 1 0 31209578 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/857/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 81.16
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 81.2869
CPU time (s): 81.2376
CPU user time (s): 78.87
CPU system time (s): 2.36764
CPU usage (%): 99.9394
Max. virtual memory (cumulated for all children) (KiB): 1884044

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 78.87
system time used= 2.36764
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 495050
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= 1027

runsolver used 0.171973 second user time and 0.370943 second system time

The end

Launcher Data 

Begin job on node010 at 2010-06-15 00:54:40
IDJOB=2669338
IDBENCH=2455
IDSOLVER=1170
FILE ID=node010/2669338-1276556078
PBS_JOBID= 11173492
Free space on /tmp= 62488 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-v2-20-10-80bau3b.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669338-1276556078/watcher-2669338-1276556078 -o /tmp/evaluation-result-2669338-1276556078/solver-2669338-1276556078 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669338-1276556078.opb

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

MD5SUM BENCH= b2e886c31e082dd9f659f139112a12d7
RANDOM SEED=126532378

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:       1853476 kB
Buffers:         24060 kB
Cached:         104272 kB
SwapCached:       5988 kB
Active:          95224 kB
Inactive:        45776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1853476 kB
SwapTotal:     4192956 kB
SwapFree:      4140216 kB
Dirty:           14440 kB
Writeback:           0 kB
AnonPages:       11028 kB
Mapped:          13012 kB
Slab:            42648 kB
PageTables:       4008 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181208 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 00:56:03