Trace number 2668570

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) 33.9668 34.1893

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/
MIPLIB/miplib2003/normalized-mps-v2-20-10-mod011.opb
MD5SUM7946286f4c1a7ac44cf771db2f48f590
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of variables309773
Total number of constraints5980
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)16
Number of constraints which are nor clauses,nor cardinality constraints5964
Minimum length of a constraint6
Maximum length of a constraint24690
Number of terms in the objective function 212680
Biggest coefficient in the objective function 38252041742581760
Number of bits for the biggest coefficient in the objective function 56
Sum of the numbers in the objective function 82366741301042726133
Number of bits of the sum of numbers in the objective function 67
Biggest number in a constraint 38252041742581760
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 82366741301042726133
Number of bits of the biggest sum of numbers67
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
3.30/3.39	c constraints 5980/0 clauses 0/0 units 15637
3.30/3.39	c vars 309773
3.39/3.40	c objective 212680 + -27058578246785530
33.78/34.01	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-2668570-1276567280/watcher-2668570-1276567280 -o /tmp/evaluation-result-2668570-1276567280/solver-2668570-1276567280 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668570-1276567280.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: 0.87 0.97 0.99 3/106 752
/proc/meminfo: memFree=1801708/2059040 swapFree=4140228/4192956
[pid=752] ppid=750 vsize=2208 CPUtime=0
/proc/752/stat : 752 (pbct) R 750 752 32417 0 -1 4202496 261 0 0 0 0 0 0 0 15 0 1 0 30384498 2260992 184 1992294400 134512640 136485738 4293793392 18446744073709551615 135171970 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/752/statm: 552 184 151 482 0 68 0

[startup+0.0284131 s]
/proc/loadavg: 0.87 0.97 0.99 3/106 752
/proc/meminfo: memFree=1801708/2059040 swapFree=4140228/4192956
[pid=752] ppid=750 vsize=3208 CPUtime=0.02
/proc/752/stat : 752 (pbct) R 750 752 32417 0 -1 4202496 460 0 0 0 2 0 0 0 17 0 1 0 30384498 3284992 383 1992294400 134512640 136485738 4293793392 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/752/statm: 802 386 151 482 0 318 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3208

[startup+0.101419 s]
/proc/loadavg: 0.87 0.97 0.99 3/106 752
/proc/meminfo: memFree=1801708/2059040 swapFree=4140228/4192956
[pid=752] ppid=750 vsize=4984 CPUtime=0.09
/proc/752/stat : 752 (pbct) R 750 752 32417 0 -1 4202496 933 0 0 0 9 0 0 0 17 0 1 0 30384498 5103616 709 1992294400 134512640 136485738 4293793392 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/752/statm: 1246 712 151 482 0 762 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4984

[startup+0.30144 s]
/proc/loadavg: 0.87 0.97 0.99 3/106 752
/proc/meminfo: memFree=1801708/2059040 swapFree=4140228/4192956
[pid=752] ppid=750 vsize=9564 CPUtime=0.3
/proc/752/stat : 752 (pbct) R 750 752 32417 0 -1 4202496 2638 0 0 0 29 1 0 0 17 0 1 0 30384498 9793536 1738 1992294400 134512640 136485738 4293793392 18446744073709551615 135843937 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/752/statm: 2391 1738 151 482 0 1907 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 9564

[startup+0.701476 s]
/proc/loadavg: 0.87 0.97 0.99 3/106 752
/proc/meminfo: memFree=1801708/2059040 swapFree=4140228/4192956
[pid=752] ppid=750 vsize=16960 CPUtime=0.69
/proc/752/stat : 752 (pbct) R 750 752 32417 0 -1 4202496 5420 0 0 0 67 2 0 0 17 0 1 0 30384498 17367040 3493 1992294400 134512640 136485738 4293793392 18446744073709551615 135857078 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/752/statm: 4240 3493 152 482 0 3756 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16960

[startup+1.50155 s]
/proc/loadavg: 0.87 0.97 0.99 2/107 753
/proc/meminfo: memFree=1788432/2059040 swapFree=4140228/4192956
[pid=752] ppid=750 vsize=26380 CPUtime=1.49
/proc/752/stat : 752 (pbct) R 750 752 32417 0 -1 4202496 7709 0 0 0 146 3 0 0 18 0 1 0 30384498 27013120 5782 1992294400 134512640 136485738 4293793392 18446744073709551615 135411144 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/752/statm: 6595 5782 157 482 0 6111 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 26380

[startup+3.10171 s]
/proc/loadavg: 0.87 0.97 0.99 2/107 753
/proc/meminfo: memFree=1766236/2059040 swapFree=4140228/4192956
[pid=752] ppid=750 vsize=61900 CPUtime=3.09
/proc/752/stat : 752 (pbct) R 750 752 32417 0 -1 4202496 16219 0 0 0 303 6 0 0 21 0 1 0 30384498 63385600 14292 1992294400 134512640 136485738 4293793392 18446744073709551615 135839986 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/752/statm: 15475 14292 157 482 0 14991 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 61900

[startup+6.30101 s]
/proc/loadavg: 0.88 0.97 0.99 2/107 753
/proc/meminfo: memFree=1568332/2059040 swapFree=4140228/4192956
[pid=752] ppid=750 vsize=321336 CPUtime=6.29
/proc/752/stat : 752 (pbct) R 750 752 32417 0 -1 4202496 83401 0 0 0 594 35 0 0 25 0 1 0 30384498 329048064 78968 1992294400 134512640 136485738 4293793392 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/752/statm: 80334 78969 197 482 0 79850 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 321336

[startup+12.7006 s]
/proc/loadavg: 0.89 0.97 0.99 2/107 753
/proc/meminfo: memFree=1158140/2059040 swapFree=4140228/4192956
[pid=752] ppid=750 vsize=704880 CPUtime=12.68
/proc/752/stat : 752 (pbct) R 750 752 32417 0 -1 4202496 184673 0 0 0 1192 76 0 0 25 0 1 0 30384498 721797120 171493 1992294400 134512640 136485738 4293793392 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/752/statm: 176220 171494 197 482 0 175736 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 704880

[startup+25.5009 s]
/proc/loadavg: 0.98 0.99 0.99 2/107 753
/proc/meminfo: memFree=414388/2059040 swapFree=4140228/4192956
[pid=752] ppid=750 vsize=1422596 CPUtime=25.47
/proc/752/stat : 752 (pbct) R 750 752 32417 0 -1 4202496 376009 0 0 0 2391 156 0 0 25 0 1 0 30384498 1456738304 349260 1992294400 134512640 136485738 4293793392 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/752/statm: 355649 349261 197 482 0 355165 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 1422596



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+34.0017 s]
/proc/loadavg: 1.23 1.04 1.01 2/107 753
/proc/meminfo: memFree=7836/2059040 swapFree=4140224/4192956
[pid=752] ppid=750 vsize=1862824 CPUtime=33.78
/proc/752/stat : 752 (pbct) R 750 752 32417 0 -1 4202496 489259 0 0 0 3167 211 0 0 25 0 1 0 30384498 1907531776 458935 1992294400 134512640 136485738 4293793392 18446744073709551615 135868589 0 0 4096 16387 0 0 0 17 1 0 0 19
/proc/752/statm: 465706 458942 197 482 0 465222 0
Current children cumulated CPU time (s) 33.78
Current children cumulated vsize (KiB) 1862824

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

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

[startup+34.114 s]
/proc/loadavg: 1.23 1.04 1.01 2/107 753
/proc/meminfo: memFree=7836/2059040 swapFree=4140224/4192956
[pid=752] ppid=750 vsize=0 CPUtime=33.88
/proc/752/stat : 752 (pbct) R 750 752 32417 0 -1 4194308 489731 0 0 0 3167 221 0 0 25 0 1 0 30384498 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 0 0 0 19
/proc/752/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 33.88
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 34.1893
CPU time (s): 33.9668
CPU user time (s): 31.6732
CPU system time (s): 2.29365
CPU usage (%): 99.3492
Max. virtual memory (cumulated for all children) (KiB): 1862824

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.6732
system time used= 2.29365
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 489731
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= 3
involuntary context switches= 448

runsolver used 0.056991 second user time and 0.184971 second system time

The end

Launcher Data 

Begin job on node018 at 2010-06-15 04:01:22
IDJOB=2668570
IDBENCH=2509
IDSOLVER=1170
FILE ID=node018/2668570-1276567280
PBS_JOBID= 11173498
Free space on /tmp= 62356 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-mod011.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668570-1276567280/watcher-2668570-1276567280 -o /tmp/evaluation-result-2668570-1276567280/solver-2668570-1276567280 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668570-1276567280.opb

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

MD5SUM BENCH= 7946286f4c1a7ac44cf771db2f48f590
RANDOM SEED=226008956

node018.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		: 3000.248
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	: 6000.49
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		: 3000.248
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	: 5599.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1802360 kB
Buffers:         48184 kB
Cached:         120392 kB
SwapCached:       5868 kB
Active:          87632 kB
Inactive:        93500 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1802360 kB
SwapTotal:     4192956 kB
SwapFree:      4140228 kB
Dirty:           16404 kB
Writeback:           0 kB
AnonPages:       10952 kB
Mapped:          13044 kB
Slab:            53860 kB
PageTables:       4000 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181332 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= 62352 MiB
End job on node018 at 2010-06-15 04:01:58