Trace number 2668318

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 21.6367 21.6426

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos6.opb
MD5SUM2a04555106a68acba17fb5820db41df1
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
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables21720
Total number of constraints1036
Number of constraints which are clauses48
Number of constraints which are cardinality constraints (but not clauses)755
Number of constraints which are nor clauses,nor cardinality constraints233
Minimum length of a constraint6
Maximum length of a constraint840
Number of terms in the objective function 6690
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 239444426529
Number of bits of the sum of numbers in the objective function 38
Biggest number in a constraint 536870912
Number of bits of the biggest number in a constraint 30
Biggest sum of numbers in a constraint 239444426529
Number of bits of the biggest sum of numbers38
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
0.80/0.82	c constraints 988/0 clauses 48/0 units 0
0.80/0.82	c vars 21720
0.80/0.82	c objective 6690 + 0
16.78/16.84	c 15.8716 929.734 0 0
21.48/21.56	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-2668318-1276530905/watcher-2668318-1276530905 -o /tmp/evaluation-result-2668318-1276530905/solver-2668318-1276530905 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668318-1276530905.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 1.00 1.09 2/106 735
/proc/meminfo: memFree=1870088/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=2352 CPUtime=0
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 270 0 0 0 0 0 0 0 23 0 1 0 28694526 2408448 193 1992294400 134512640 136485738 4287541488 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/735/statm: 588 194 149 482 0 104 0

[startup+0.0861341 s]
/proc/loadavg: 1.00 1.00 1.09 2/106 735
/proc/meminfo: memFree=1870088/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=4252 CPUtime=0.08
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 760 0 0 0 8 0 0 0 23 0 1 0 28694526 4354048 683 1992294400 134512640 136485738 4287541488 18446744073709551615 135843943 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/735/statm: 1063 683 156 482 0 579 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4252

[startup+0.101135 s]
/proc/loadavg: 1.00 1.00 1.09 2/106 735
/proc/meminfo: memFree=1870088/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=4652 CPUtime=0.09
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 855 0 0 0 9 0 0 0 23 0 1 0 28694526 4763648 778 1992294400 134512640 136485738 4287541488 18446744073709551615 135416538 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/735/statm: 1163 779 156 482 0 679 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4652

[startup+0.301156 s]
/proc/loadavg: 1.00 1.00 1.09 2/106 735
/proc/meminfo: memFree=1870088/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=9896 CPUtime=0.29
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 2140 0 0 0 29 0 0 0 23 0 1 0 28694526 10133504 2063 1992294400 134512640 136485738 4287541488 18446744073709551615 135178790 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/735/statm: 2474 2063 156 482 0 1990 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9896

[startup+0.701195 s]
/proc/loadavg: 1.00 1.00 1.09 2/106 735
/proc/meminfo: memFree=1870088/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=18464 CPUtime=0.69
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 4235 0 0 0 69 0 0 0 25 0 1 0 28694526 18907136 4158 1992294400 134512640 136485738 4287541488 18446744073709551615 135857078 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/735/statm: 4616 4158 156 482 0 4132 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 18464

[startup+1.50128 s]
/proc/loadavg: 1.00 1.00 1.09 2/107 736
/proc/meminfo: memFree=1832632/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=75500 CPUtime=1.5
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 19064 0 0 0 143 7 0 0 25 0 1 0 28694526 77312000 18311 1992294400 134512640 136485738 4287541488 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/735/statm: 18875 18311 198 482 0 18391 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 75500

[startup+3.10144 s]
/proc/loadavg: 1.00 1.00 1.09 2/107 736
/proc/meminfo: memFree=1768648/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=155240 CPUtime=3.1
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 40451 0 0 0 294 16 0 0 25 0 1 0 28694526 158965760 37733 1992294400 134512640 136485738 4287541488 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/735/statm: 38810 37733 198 482 0 38326 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 155240

[startup+6.30177 s]
/proc/loadavg: 1.00 1.00 1.09 2/107 736
/proc/meminfo: memFree=1604348/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=314872 CPUtime=6.29
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 83956 0 0 0 595 34 0 0 25 0 1 0 28694526 322428928 77576 1992294400 134512640 136485738 4287541488 18446744073709551615 135869175 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/735/statm: 78718 77577 198 482 0 78234 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 314872

[startup+12.7014 s]
/proc/loadavg: 1.00 1.00 1.08 2/107 736
/proc/meminfo: memFree=1049820/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=865404 CPUtime=12.69
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 229506 0 0 0 1180 89 0 0 25 0 1 0 28694526 886173696 211308 1992294400 134512640 136485738 4287541488 18446744073709551615 134663842 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/735/statm: 216351 211308 210 482 0 215867 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 865404

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

[startup+15.9008 s]
/proc/loadavg: 1.00 1.00 1.08 2/107 736
/proc/meminfo: memFree=992656/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=910228 CPUtime=15.89
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 241103 0 0 0 1496 93 0 0 25 0 1 0 28694526 932073472 220913 1992294400 134512640 136485738 4287541488 18446744073709551615 134607829 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/735/statm: 227557 220914 210 482 0 227073 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 910228

[startup+19.1011 s]
/proc/loadavg: 1.00 1.00 1.08 2/107 736
/proc/meminfo: memFree=1014604/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=866576 CPUtime=19.09
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 252858 0 0 0 1811 98 0 0 25 0 1 0 28694526 887373824 212262 1992294400 134512640 136485738 4287541488 18446744073709551615 135856905 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/735/statm: 216644 212262 246 482 0 216160 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 866576

[startup+20.7012 s]
/proc/loadavg: 1.00 1.00 1.08 2/107 736
/proc/meminfo: memFree=1055896/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=813816 CPUtime=20.69
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 252858 0 0 0 1971 98 0 0 25 0 1 0 28694526 833347584 203139 1992294400 134512640 136485738 4287541488 18446744073709551615 135839940 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/735/statm: 203454 203139 246 482 0 202970 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 813816

[startup+21.1013 s]
/proc/loadavg: 1.00 1.00 1.08 2/107 736
/proc/meminfo: memFree=1055896/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=813816 CPUtime=21.08
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 252858 0 0 0 2010 98 0 0 25 0 1 0 28694526 833347584 203139 1992294400 134512640 136485738 4287541488 18446744073709551615 135839787 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/735/statm: 203454 203139 246 482 0 202970 0
Current children cumulated CPU time (s) 21.08
Current children cumulated vsize (KiB) 813816

[startup+21.5013 s]
/proc/loadavg: 1.00 1.00 1.08 2/107 736
/proc/meminfo: memFree=1055896/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=813816 CPUtime=21.48
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202496 252858 0 0 0 2050 98 0 0 25 0 1 0 28694526 833347584 203139 1992294400 134512640 136485738 4287541488 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/735/statm: 203454 203139 246 482 0 202970 0
Current children cumulated CPU time (s) 21.48
Current children cumulated vsize (KiB) 813816

[startup+21.6013 s]
/proc/loadavg: 1.00 1.00 1.08 2/107 736
/proc/meminfo: memFree=1055896/2059040 swapFree=4135652/4192956
[pid=735] ppid=733 vsize=0 CPUtime=21.59
/proc/735/stat : 735 (pbct) R 733 735 544 0 -1 4202500 252859 0 0 0 2057 102 0 0 25 0 1 0 28694526 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/735/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 21.59
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 21.6426
CPU time (s): 21.6367
CPU user time (s): 20.5719
CPU system time (s): 1.06484
CPU usage (%): 99.9729
Max. virtual memory (cumulated for all children) (KiB): 948084

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.5719
system time used= 1.06484
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 252859
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= 2
involuntary context switches= 266

runsolver used 0.036994 second user time and 0.109983 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-14 17:55:06
IDJOB=2668318
IDBENCH=2331
IDSOLVER=1170
FILE ID=node002/2668318-1276530905
PBS_JOBID= 11173455
Free space on /tmp= 62456 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos6.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668318-1276530905/watcher-2668318-1276530905 -o /tmp/evaluation-result-2668318-1276530905/solver-2668318-1276530905 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668318-1276530905.opb

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

MD5SUM BENCH= 2a04555106a68acba17fb5820db41df1
RANDOM SEED=1562913405

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:       1870492 kB
Buffers:          9112 kB
Cached:          90568 kB
SwapCached:      10156 kB
Active:          49540 kB
Inactive:        62828 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1870492 kB
SwapTotal:     4192956 kB
SwapFree:      4135652 kB
Dirty:            4980 kB
Writeback:           0 kB
AnonPages:       11268 kB
Mapped:           9196 kB
Slab:            54308 kB
PageTables:       3912 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181080 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= 62452 MiB
End job on node002 at 2010-06-14 17:55:27