Trace number 2682925

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) 31.9861 31.9951

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-bnl2.opb
MD5SUM1aac4473a72704481ef90ef3ff1598a7
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 benchmark7.2349
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables104670
Total number of constraints2262
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 constraints2262
Minimum length of a constraint30
Maximum length of a constraint2460
Number of terms in the objective function 50550
Biggest coefficient in the objective function 322444669747200
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 11314136774293353
Number of bits of the sum of numbers in the objective function 54
Biggest number in a constraint 322444669747200
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 11314136774293353
Number of bits of the biggest sum of numbers54
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
1.89/1.97	c constraints 2241/0 clauses 0/0 units 12381
1.89/1.97	c vars 104670
4.40/4.48	c objective 43092 + -167167108246078
31.80/31.81	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-2682925-1277487306/watcher-2682925-1277487306 -o /tmp/evaluation-result-2682925-1277487306/solver-2682925-1277487306 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682925-1277487306.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: 0.99 0.97 0.92 3/106 29807
/proc/meminfo: memFree=1801136/2059040 swapFree=4140116/4192956
[pid=29807] ppid=29805 vsize=2416 CPUtime=0
/proc/29807/stat : 29807 (pbct) R 29805 29807 28857 0 -1 4202496 293 0 0 0 0 0 0 0 18 0 1 0 90025755 2473984 212 1992294400 134512640 136421960 4286669344 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29807/statm: 604 212 138 467 0 135 0

[startup+0.0676829 s]
/proc/loadavg: 0.99 0.97 0.92 3/106 29807
/proc/meminfo: memFree=1801136/2059040 swapFree=4140116/4192956
[pid=29807] ppid=29805 vsize=4008 CPUtime=0.06
/proc/29807/stat : 29807 (pbct) R 29805 29807 28857 0 -1 4202496 776 0 0 0 6 0 0 0 20 0 1 0 90025755 4104192 548 1992294400 134512640 136421960 4286669344 18446744073709551615 135153563 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29807/statm: 1002 548 138 467 0 533 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4008

[startup+0.101686 s]
/proc/loadavg: 0.99 0.97 0.92 3/106 29807
/proc/meminfo: memFree=1801136/2059040 swapFree=4140116/4192956
[pid=29807] ppid=29805 vsize=5864 CPUtime=0.09
/proc/29807/stat : 29807 (pbct) R 29805 29807 28857 0 -1 4202496 1290 0 0 0 9 0 0 0 20 0 1 0 90025755 6004736 836 1992294400 134512640 136421960 4286669344 18446744073709551615 135805313 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29807/statm: 1466 836 138 467 0 997 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5864

[startup+0.301709 s]
/proc/loadavg: 0.99 0.97 0.92 3/106 29807
/proc/meminfo: memFree=1801136/2059040 swapFree=4140116/4192956
[pid=29807] ppid=29805 vsize=7724 CPUtime=0.29
/proc/29807/stat : 29807 (pbct) R 29805 29807 28857 0 -1 4202496 1915 0 0 0 29 0 0 0 20 0 1 0 90025755 7909376 1461 1992294400 134512640 136421960 4286669344 18446744073709551615 135521393 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29807/statm: 1931 1461 146 467 0 1462 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7724

[startup+0.700756 s]
/proc/loadavg: 0.99 0.97 0.92 3/106 29807
/proc/meminfo: memFree=1801136/2059040 swapFree=4140116/4192956
[pid=29807] ppid=29805 vsize=15964 CPUtime=0.69
/proc/29807/stat : 29807 (pbct) R 29805 29807 28857 0 -1 4202496 3912 0 0 0 68 1 0 0 20 0 1 0 90025755 16347136 3458 1992294400 134512640 136421960 4286669344 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29807/statm: 3991 3458 146 467 0 3522 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15964

[startup+1.50085 s]
/proc/loadavg: 0.99 0.97 0.92 2/107 29808
/proc/meminfo: memFree=1781536/2059040 swapFree=4140116/4192956
[pid=29807] ppid=29805 vsize=33020 CPUtime=1.49
/proc/29807/stat : 29807 (pbct) R 29805 29807 28857 0 -1 4202496 8054 0 0 0 145 4 0 0 23 0 1 0 90025755 33812480 7600 1992294400 134512640 136421960 4286669344 18446744073709551615 135372680 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29807/statm: 8255 7600 146 467 0 7786 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 33020

[startup+3.10104 s]
/proc/loadavg: 0.99 0.97 0.92 2/107 29808
/proc/meminfo: memFree=1767400/2059040 swapFree=4140116/4192956
[pid=29807] ppid=29805 vsize=36636 CPUtime=3.09
/proc/29807/stat : 29807 (pbct) R 29805 29807 28857 0 -1 4202496 8956 0 0 0 305 4 0 0 25 0 1 0 90025755 37515264 8502 1992294400 134512640 136421960 4286669344 18446744073709551615 135161800 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29807/statm: 9159 8502 150 467 0 8690 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 36636

[startup+6.30042 s]
/proc/loadavg: 0.99 0.97 0.92 2/107 29808
/proc/meminfo: memFree=1685932/2059040 swapFree=4140116/4192956
[pid=29807] ppid=29805 vsize=186968 CPUtime=6.29
/proc/29807/stat : 29807 (pbct) R 29805 29807 28857 0 -1 4202496 47542 0 0 0 609 20 0 0 25 0 1 0 90025755 191455232 45224 1992294400 134512640 136421960 4286669344 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29807/statm: 46742 45225 195 467 0 46273 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 186968

[startup+12.7002 s]
/proc/loadavg: 0.99 0.97 0.92 2/107 29808
/proc/meminfo: memFree=1249576/2059040 swapFree=4140116/4192956
[pid=29807] ppid=29805 vsize=612096 CPUtime=12.69
/proc/29807/stat : 29807 (pbct) R 29805 29807 28857 0 -1 4202496 160359 0 0 0 1197 72 0 0 25 0 1 0 90025755 626786304 148749 1992294400 134512640 136421960 4286669344 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29807/statm: 153024 148750 195 467 0 152555 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 612096

[startup+25.5007 s]
/proc/loadavg: 0.99 0.97 0.92 2/107 29808
/proc/meminfo: memFree=139528/2059040 swapFree=4140116/4192956
[pid=29807] ppid=29805 vsize=1674456 CPUtime=25.48
/proc/29807/stat : 29807 (pbct) R 29805 29807 28857 0 -1 4202496 442658 0 0 0 2364 184 0 0 25 0 1 0 90025755 1714642944 414654 1992294400 134512640 136421960 4286669344 18446744073709551615 135801367 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29807/statm: 418614 414654 197 467 0 418145 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1674456



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+31.8014 s]
/proc/loadavg: 0.99 0.97 0.92 2/107 29808
/proc/meminfo: memFree=14164/2059040 swapFree=4140116/4192956
[pid=29807] ppid=29805 vsize=1844020 CPUtime=31.8
/proc/29807/stat : 29807 (pbct) R 29805 29807 28857 0 -1 4202496 487799 0 0 0 2978 202 0 0 25 0 1 0 90025755 1888276480 445968 1992294400 134512640 136421960 4286669344 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29807/statm: 461005 445968 205 467 0 460536 0
Current children cumulated CPU time (s) 31.8
Current children cumulated vsize (KiB) 1844020

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

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

[startup+31.9165 s]
/proc/loadavg: 0.99 0.97 0.92 2/107 29808
/proc/meminfo: memFree=14164/2059040 swapFree=4140116/4192956
[pid=29807] ppid=29805 vsize=0 CPUtime=31.9
/proc/29807/stat : 29807 (pbct) R 29805 29807 28857 0 -1 4194308 487802 0 0 0 2978 212 0 0 25 0 1 0 90025755 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/29807/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 31.9
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 31.9951
CPU time (s): 31.9861
CPU user time (s): 29.7865
CPU system time (s): 2.19967
CPU usage (%): 99.9719
Max. virtual memory (cumulated for all children) (KiB): 1844020

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.7865
system time used= 2.19966
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 487802
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= 20

runsolver used 0.054991 second user time and 0.168974 second system time

The end

Launcher Data 

Begin job on node033 at 2010-06-25 19:35:06
IDJOB=2682925
IDBENCH=2445
IDSOLVER=1192
FILE ID=node033/2682925-1277487306
PBS_JOBID= 11190511
Free space on /tmp= 62300 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-bnl2.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682925-1277487306/watcher-2682925-1277487306 -o /tmp/evaluation-result-2682925-1277487306/solver-2682925-1277487306 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682925-1277487306.opb

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

MD5SUM BENCH= 1aac4473a72704481ef90ef3ff1598a7
RANDOM SEED=1958230540

node033.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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1801656 kB
Buffers:         43500 kB
Cached:         115360 kB
SwapCached:       5352 kB
Active:          24044 kB
Inactive:       147752 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1801656 kB
SwapTotal:     4192956 kB
SwapFree:      4140116 kB
Dirty:            9160 kB
Writeback:           0 kB
AnonPages:       11548 kB
Mapped:          12012 kB
Slab:            63688 kB
PageTables:       4140 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181676 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= 62296 MiB
End job on node033 at 2010-06-25 19:35:40