Trace number 2668718

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 28.5087 28.525

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos11.opb
MD5SUMec9bba2d2c31efcadc0a4a76a4815e08
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark9216
Best CPU time to get the best result obtained on this benchmark366.403
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 9216
Optimality of the best value was proved YES
Number of variables8600
Total number of constraints2806
Number of constraints which are clauses600
Number of constraints which are cardinality constraints (but not clauses)120
Number of constraints which are nor clauses,nor cardinality constraints2086
Minimum length of a constraint2
Maximum length of a constraint450
Number of terms in the objective function 5400
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 193273528140
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 193273528140
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
0.30/0.36	c constraints 1156/0 clauses 1650/0 units 0
0.30/0.36	c vars 8600
0.30/0.36	c objective 5400 + 0
27.67/27.73	c 26.9599 163.672 13240 89881
28.48/28.50	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-2668718-1276532001/watcher-2668718-1276532001 -o /tmp/evaluation-result-2668718-1276532001/solver-2668718-1276532001 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668718-1276532001.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: 1.95 1.97 1.62 3/106 30179
/proc/meminfo: memFree=1862636/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=2488 CPUtime=0
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 306 0 0 0 0 0 0 0 20 0 1 0 28801477 2547712 228 1992294400 134512640 136485738 4292207024 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30179/statm: 622 228 149 482 0 138 0

[startup+0.0975839 s]
/proc/loadavg: 1.95 1.97 1.62 3/106 30179
/proc/meminfo: memFree=1862636/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=4600 CPUtime=0.09
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 835 0 0 0 9 0 0 0 20 0 1 0 28801477 4710400 757 1992294400 134512640 136485738 4292207024 18446744073709551615 135856892 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30179/statm: 1150 758 156 482 0 666 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4600

[startup+0.101584 s]
/proc/loadavg: 1.95 1.97 1.62 3/106 30179
/proc/meminfo: memFree=1862636/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=4600 CPUtime=0.1
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 859 0 0 0 10 0 0 0 20 0 1 0 28801477 4710400 781 1992294400 134512640 136485738 4292207024 18446744073709551615 135416602 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30179/statm: 1150 781 156 482 0 666 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 4600

[startup+0.301618 s]
/proc/loadavg: 1.95 1.97 1.62 3/106 30179
/proc/meminfo: memFree=1862636/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=4860 CPUtime=0.3
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 908 0 0 0 30 0 0 0 20 0 1 0 28801477 4976640 830 1992294400 134512640 136485738 4292207024 18446744073709551615 135864622 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30179/statm: 1215 830 156 482 0 731 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 4860

[startup+0.701687 s]
/proc/loadavg: 1.95 1.97 1.62 3/106 30179
/proc/meminfo: memFree=1862636/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=34796 CPUtime=0.69
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 8542 0 0 0 66 3 0 0 21 0 1 0 28801477 35631104 8030 1992294400 134512640 136485738 4292207024 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30179/statm: 8699 8030 198 482 0 8215 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 34796

[startup+1.50083 s]
/proc/loadavg: 1.95 1.97 1.62 2/107 30180
/proc/meminfo: memFree=1814392/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=79352 CPUtime=1.49
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 20455 0 0 0 141 8 0 0 23 0 1 0 28801477 81256448 19212 1992294400 134512640 136485738 4292207024 18446744073709551615 134651003 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30179/statm: 19838 19212 198 482 0 19354 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 79352

[startup+3.1011 s]
/proc/loadavg: 1.95 1.97 1.62 2/107 30180
/proc/meminfo: memFree=1719656/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=164800 CPUtime=3.09
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 42428 0 0 0 290 19 0 0 25 0 1 0 28801477 168755200 39038 1992294400 134512640 136485738 4292207024 18446744073709551615 135024568 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30179/statm: 41200 39038 226 482 0 40716 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 164800

[startup+6.30065 s]
/proc/loadavg: 1.88 1.95 1.62 2/107 30180
/proc/meminfo: memFree=1706264/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=165196 CPUtime=6.29
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 42544 0 0 0 599 30 0 0 25 0 1 0 28801477 169160704 39154 1992294400 134512640 136485738 4292207024 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30179/statm: 41299 39154 227 482 0 40815 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 165196

[startup+12.7007 s]
/proc/loadavg: 1.81 1.93 1.61 2/107 30182
/proc/meminfo: memFree=1705148/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=166272 CPUtime=12.69
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 42776 0 0 0 1225 44 0 0 25 0 1 0 28801477 170262528 39386 1992294400 134512640 136485738 4292207024 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30179/statm: 41568 39386 227 482 0 41084 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 166272

[startup+25.5009 s]
/proc/loadavg: 1.63 1.89 1.60 2/107 30182
/proc/meminfo: memFree=1703908/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=167464 CPUtime=25.47
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 43083 0 0 0 2476 71 0 0 25 0 1 0 28801477 171483136 39693 1992294400 134512640 136485738 4292207024 18446744073709551615 135047545 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30179/statm: 41866 39693 227 482 0 41382 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 167464

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

[startup+27.1012 s]
/proc/loadavg: 1.63 1.89 1.60 2/107 30182
/proc/meminfo: memFree=1703784/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=167596 CPUtime=27.07
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 43108 0 0 0 2633 74 0 0 25 0 1 0 28801477 171618304 39718 1992294400 134512640 136485738 4292207024 18446744073709551615 135724785 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30179/statm: 41899 39718 227 482 0 41415 0
Current children cumulated CPU time (s) 27.07
Current children cumulated vsize (KiB) 167596

[startup+27.9014 s]
/proc/loadavg: 1.63 1.89 1.60 2/107 30182
/proc/meminfo: memFree=1703660/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=159584 CPUtime=27.87
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 43140 0 0 0 2712 75 0 0 25 0 1 0 28801477 163414016 38264 1992294400 134512640 136485738 4292207024 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30179/statm: 39896 38264 249 482 0 39412 0
Current children cumulated CPU time (s) 27.87
Current children cumulated vsize (KiB) 159584

[startup+28.3014 s]
/proc/loadavg: 1.63 1.89 1.60 2/107 30182
/proc/meminfo: memFree=1703660/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=154944 CPUtime=28.27
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 43140 0 0 0 2752 75 0 0 25 0 1 0 28801477 158662656 37307 1992294400 134512640 136485738 4292207024 18446744073709551615 135839931 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30179/statm: 38736 37307 249 482 0 38252 0
Current children cumulated CPU time (s) 28.27
Current children cumulated vsize (KiB) 154944

[startup+28.5015 s]
/proc/loadavg: 1.58 1.87 1.60 2/107 30182
/proc/meminfo: memFree=1718788/2059040 swapFree=4136080/4192956
[pid=30179] ppid=30177 vsize=145092 CPUtime=28.48
/proc/30179/stat : 30179 (pbct) R 30177 30179 29487 0 -1 4202496 43141 0 0 0 2773 75 0 0 25 0 1 0 28801477 148574208 35835 1992294400 134512640 136485738 4292207024 18446744073709551615 135839931 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30179/statm: 36273 35835 250 482 0 35789 0
Current children cumulated CPU time (s) 28.48
Current children cumulated vsize (KiB) 145092

Child status: 0
Real time (s): 28.525
CPU time (s): 28.5087
CPU user time (s): 27.7358
CPU system time (s): 0.772882
CPU usage (%): 99.9426
Max. virtual memory (cumulated for all children) (KiB): 167596

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.7358
system time used= 0.772882
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 43141
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= 70

runsolver used 0.053991 second user time and 0.139978 second system time

The end

Launcher Data 

Begin job on node014 at 2010-06-14 18:13:21
IDJOB=2668718
IDBENCH=2335
IDSOLVER=1170
FILE ID=node014/2668718-1276532001
PBS_JOBID= 11173445
Free space on /tmp= 62504 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-neos11.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668718-1276532001/watcher-2668718-1276532001 -o /tmp/evaluation-result-2668718-1276532001/solver-2668718-1276532001 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668718-1276532001.opb

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

MD5SUM BENCH= ec9bba2d2c31efcadc0a4a76a4815e08
RANDOM SEED=1769688671

node014.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		: 3000.258
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	: 6000.51
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		: 3000.258
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	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1863040 kB
Buffers:         15780 kB
Cached:          93396 kB
SwapCached:      11124 kB
Active:          71416 kB
Inactive:        51932 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1863040 kB
SwapTotal:     4192956 kB
SwapFree:      4136080 kB
Dirty:            2740 kB
Writeback:          32 kB
AnonPages:       11392 kB
Mapped:           9204 kB
Slab:            50556 kB
PageTables:       3952 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181908 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= 62504 MiB
End job on node014 at 2010-06-14 18:13:50