Trace number 2682082

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) 39.9719 42.3064

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib2003/normalized-mps-v2-20-10-van.opb
MD5SUMf8bd04e1a409d78891d8cd3f4d8f54c0
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark24193312742
Best CPU time to get the best result obtained on this benchmark1800.71
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 24193312742
Optimality of the best value was proved NO
Number of variables135360
Total number of constraints39616
Number of constraints which are clauses128
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints39488
Minimum length of a constraint2
Maximum length of a constraint496
Number of terms in the objective function 192
Biggest coefficient in the objective function 2427002644
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 319999999936
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 226795425792
Number of bits of the biggest number in a constraint 38
Biggest sum of numbers in a constraint 973128929893
Number of bits of the biggest sum of numbers40
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
17.49/17.53	c constraints 39488/0 clauses 128/0 units 0
17.49/17.53	c vars 135360
17.49/17.53	c objective 192 + 0

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-2682082-1277488805/watcher-2682082-1277488805 -o /tmp/evaluation-result-2682082-1277488805/solver-2682082-1277488805 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682082-1277488805.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: 1.08 1.00 0.97 3/106 30950
/proc/meminfo: memFree=1762460/2059040 swapFree=4140792/4192956
[pid=30950] ppid=30948 vsize=2268 CPUtime=0
/proc/30950/stat : 30950 (pbct) R 30948 30950 30067 0 -1 4202496 287 0 0 0 0 0 0 0 20 0 1 0 90173891 2322432 207 1992294400 134512640 136421960 4290735072 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30950/statm: 567 208 146 467 0 98 0

[startup+0.0108891 s]
/proc/loadavg: 1.08 1.00 0.97 3/106 30950
/proc/meminfo: memFree=1762460/2059040 swapFree=4140792/4192956
[pid=30950] ppid=30948 vsize=2400 CPUtime=0
/proc/30950/stat : 30950 (pbct) R 30948 30950 30067 0 -1 4202496 305 0 0 0 0 0 0 0 20 0 1 0 90173891 2457600 225 1992294400 134512640 136421960 4290735072 18446744073709551615 135154704 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30950/statm: 600 225 146 467 0 131 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2400

[startup+0.101897 s]
/proc/loadavg: 1.08 1.00 0.97 3/106 30950
/proc/meminfo: memFree=1762460/2059040 swapFree=4140792/4192956
[pid=30950] ppid=30948 vsize=4784 CPUtime=0.09
/proc/30950/stat : 30950 (pbct) R 30948 30950 30067 0 -1 4202496 916 0 0 0 9 0 0 0 20 0 1 0 90173891 4898816 836 1992294400 134512640 136421960 4290735072 18446744073709551615 135154704 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30950/statm: 1196 836 146 467 0 727 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4784

[startup+0.300915 s]
/proc/loadavg: 1.08 1.00 0.97 3/106 30950
/proc/meminfo: memFree=1762460/2059040 swapFree=4140792/4192956
[pid=30950] ppid=30948 vsize=10064 CPUtime=0.29
/proc/30950/stat : 30950 (pbct) R 30948 30950 30067 0 -1 4202496 2240 0 0 0 28 1 0 0 20 0 1 0 90173891 10305536 2160 1992294400 134512640 136421960 4290735072 18446744073709551615 135162382 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30950/statm: 2516 2161 146 467 0 2047 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10064

[startup+0.700954 s]
/proc/loadavg: 1.08 1.00 0.97 3/106 30950
/proc/meminfo: memFree=1762460/2059040 swapFree=4140792/4192956
[pid=30950] ppid=30948 vsize=20172 CPUtime=0.69
/proc/30950/stat : 30950 (pbct) R 30948 30950 30067 0 -1 4202496 4762 0 0 0 67 2 0 0 20 0 1 0 90173891 20656128 4682 1992294400 134512640 136421960 4290735072 18446744073709551615 135372696 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30950/statm: 5043 4682 146 467 0 4574 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 20172

[startup+1.50103 s]
/proc/loadavg: 1.08 1.00 0.97 2/107 30951
/proc/meminfo: memFree=1737032/2059040 swapFree=4140792/4192956
[pid=30950] ppid=30948 vsize=39924 CPUtime=1.49
/proc/30950/stat : 30950 (pbct) R 30948 30950 30067 0 -1 4202496 9709 0 0 0 145 4 0 0 22 0 1 0 90173891 40882176 9629 1992294400 134512640 136421960 4290735072 18446744073709551615 135155333 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30950/statm: 9981 9629 146 467 0 9512 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 39924

[startup+3.1012 s]
/proc/loadavg: 1.08 1.00 0.97 2/107 30951
/proc/meminfo: memFree=1709876/2059040 swapFree=4140792/4192956
[pid=30950] ppid=30948 vsize=79464 CPUtime=3.09
/proc/30950/stat : 30950 (pbct) R 30948 30950 30067 0 -1 4202496 19582 0 0 0 300 9 0 0 25 0 1 0 90173891 81371136 19502 1992294400 134512640 136421960 4290735072 18446744073709551615 135380593 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30950/statm: 19866 19502 146 467 0 19397 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 79464

[startup+6.3015 s]
/proc/loadavg: 1.15 1.02 0.97 2/107 30951
/proc/meminfo: memFree=1633864/2059040 swapFree=4140792/4192956
[pid=30950] ppid=30948 vsize=149876 CPUtime=6.29
/proc/30950/stat : 30950 (pbct) R 30948 30950 30067 0 -1 4202496 37194 0 0 0 610 19 0 0 25 0 1 0 90173891 153473024 37114 1992294400 134512640 136421960 4290735072 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30950/statm: 37469 37114 146 467 0 37000 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 149876

[startup+12.7011 s]
/proc/loadavg: 1.14 1.02 0.97 2/107 30951
/proc/meminfo: memFree=1508996/2059040 swapFree=4140792/4192956
[pid=30950] ppid=30948 vsize=270524 CPUtime=12.68
/proc/30950/stat : 30950 (pbct) R 30948 30950 30067 0 -1 4202496 67364 0 0 0 1235 33 0 0 25 0 1 0 90173891 277016576 67251 1992294400 134512640 136421960 4290735072 18446744073709551615 135809553 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30950/statm: 67631 67251 146 467 0 67162 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 270524

[startup+25.5014 s]
/proc/loadavg: 1.11 1.01 0.97 2/107 30951
/proc/meminfo: memFree=713784/2059040 swapFree=4140792/4192956
[pid=30950] ppid=30948 vsize=1093636 CPUtime=25.48
/proc/30950/stat : 30950 (pbct) R 30948 30950 30067 0 -1 4202496 281492 0 0 0 2411 137 0 0 25 0 1 0 90173891 1119883264 269505 1992294400 134512640 136421960 4290735072 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30950/statm: 273409 269507 194 467 0 272940 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1093636



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+40.1008 s]
/proc/loadavg: 1.08 1.01 0.97 2/107 30951
/proc/meminfo: memFree=9296/2059040 swapFree=4140788/4192956
[pid=30950] ppid=30948 vsize=1843988 CPUtime=39.78
/proc/30950/stat : 30950 (pbct) R 30948 30950 30067 0 -1 4202496 487117 0 0 0 3746 232 0 0 25 0 1 0 90173891 1888243712 458735 1992294400 134512640 136421960 4290735072 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 32
/proc/30950/statm: 460997 458736 195 467 0 460528 0
Current children cumulated CPU time (s) 39.78
Current children cumulated vsize (KiB) 1843988

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -30950

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

[startup+41.601 s]
/proc/loadavg: 1.08 1.01 0.97 1/108 30952
/proc/meminfo: memFree=10468/2059040 swapFree=4140788/4192956
[pid=30950] ppid=30948 vsize=1844120 CPUtime=39.78
/proc/30950/stat : 30950 (pbct) S 30948 30950 30067 0 -1 4194304 487123 0 0 0 3746 232 0 0 25 0 1 0 90173891 1888378880 458741 1992294400 134512640 136421960 4290735072 18446744073709551615 135884462 0 16384 4096 16387 18446604437861906624 0 0 17 1 0 0 32
/proc/30950/statm: 461030 458741 196 467 0 460561 0
Current children cumulated CPU time (s) 39.78
Current children cumulated vsize (KiB) 1844120

[startup+42.009 s]
/proc/loadavg: 1.08 1.01 0.97 1/108 30952
/proc/meminfo: memFree=10468/2059040 swapFree=4140788/4192956
[pid=30950] ppid=30948 vsize=1844120 CPUtime=39.78
/proc/30950/stat : 30950 (pbct) S 30948 30950 30067 0 -1 4194304 487123 0 0 0 3746 232 0 0 25 0 1 0 90173891 1888378880 458741 1992294400 134512640 136421960 4290735072 18446744073709551615 135884462 0 16384 4096 16387 18446604437861906624 0 0 17 1 0 0 32
/proc/30950/statm: 461030 458741 196 467 0 460561 0
Current children cumulated CPU time (s) 39.78
Current children cumulated vsize (KiB) 1844120

[startup+42.201 s]
/proc/loadavg: 1.08 1.01 0.97 1/108 30952
/proc/meminfo: memFree=10468/2059040 swapFree=4140788/4192956
[pid=30950] ppid=30948 vsize=0 CPUtime=39.85
/proc/30950/stat : 30950 (pbct) R 30948 30950 30067 0 -1 4195332 487123 0 0 0 3746 239 0 0 18 0 1 0 90173891 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 32
/proc/30950/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 39.85
Current children cumulated vsize (KiB) 0

[startup+42.301 s]
/proc/loadavg: 1.08 1.01 0.97 1/108 30952
/proc/meminfo: memFree=10468/2059040 swapFree=4140788/4192956
[pid=30950] ppid=30948 vsize=0 CPUtime=39.95
/proc/30950/stat : 30950 (pbct) R 30948 30950 30067 0 -1 4195332 487123 0 0 0 3746 249 0 0 18 0 1 0 90173891 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 32
/proc/30950/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 39.95
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 42.3064
CPU time (s): 39.9719
CPU user time (s): 37.4663
CPU system time (s): 2.50562
CPU usage (%): 94.4821
Max. virtual memory (cumulated for all children) (KiB): 1844120

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 37.4663
system time used= 2.50562
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 487123
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= 8
involuntary context switches= 38

runsolver used 0.070989 second user time and 0.218966 second system time

The end

Launcher Data 

Begin job on node036 at 2010-06-25 20:00:10
IDJOB=2682082
IDBENCH=2503
IDSOLVER=1192
FILE ID=node036/2682082-1277488805
PBS_JOBID= 11190508
Free space on /tmp= 62304 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-van.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682082-1277488805/watcher-2682082-1277488805 -o /tmp/evaluation-result-2682082-1277488805/solver-2682082-1277488805 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682082-1277488805.opb

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

MD5SUM BENCH= f8bd04e1a409d78891d8cd3f4d8f54c0
RANDOM SEED=383550639

node036.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:       1762740 kB
Buffers:         29492 kB
Cached:         164876 kB
SwapCached:       5352 kB
Active:         147084 kB
Inactive:        60684 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1762740 kB
SwapTotal:     4192956 kB
SwapFree:      4140792 kB
Dirty:           79376 kB
Writeback:           0 kB
AnonPages:       12020 kB
Mapped:          11888 kB
Slab:            66192 kB
PageTables:       4168 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181424 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= 62300 MiB
End job on node036 at 2010-06-25 20:00:52