Trace number 2668351

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 0.1UNSAT 13.013 13.0162

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-scrs8.opb
MD5SUMb043e07da3f326ab58c20906a4694dad
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 variables35070
Total number of constraints488
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 constraints488
Minimum length of a constraint30
Maximum length of a constraint1110
Number of terms in the objective function 24750
Biggest coefficient in the objective function 284830543390965760000
Number of bits for the biggest coefficient in the objective function 68
Sum of the numbers in the objective function 7193462013935082558288
Number of bits of the sum of numbers in the objective function 73
Biggest number in a constraint 284830543390965760000
Number of bits of the biggest number in a constraint 68
Biggest sum of numbers in a constraint 7193462013935082558288
Number of bits of the biggest sum of numbers73
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
0.39/0.49	c constraints 488/0 clauses 0/0 units 428
0.39/0.49	c vars 35070
0.49/0.53	c objective 24551 + -68934452958703026387
9.69/9.76	c 9.00663 639.148 0 0
12.89/12.95	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-2668351-1276551723/watcher-2668351-1276551723 -o /tmp/evaluation-result-2668351-1276551723/solver-2668351-1276551723 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668351-1276551723.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: 2.05 1.97 1.63 3/106 30845
/proc/meminfo: memFree=1811632/2059040 swapFree=4140388/4192956
[pid=30845] ppid=30843 vsize=2352 CPUtime=0
/proc/30845/stat : 30845 (pbct) R 30843 30845 30557 0 -1 4202496 291 0 0 0 0 0 0 0 20 0 1 0 30776157 2408448 213 1992294400 134512640 136485738 4289887696 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30845/statm: 588 213 151 482 0 104 0

[startup+0.0229411 s]
/proc/loadavg: 2.05 1.97 1.63 3/106 30845
/proc/meminfo: memFree=1811632/2059040 swapFree=4140388/4192956
[pid=30845] ppid=30843 vsize=2752 CPUtime=0.01
/proc/30845/stat : 30845 (pbct) R 30843 30845 30557 0 -1 4202496 371 0 0 0 1 0 0 0 20 0 1 0 30776157 2818048 293 1992294400 134512640 136485738 4289887696 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30845/statm: 688 293 151 482 0 204 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2752

[startup+0.100949 s]
/proc/loadavg: 2.05 1.97 1.63 3/106 30845
/proc/meminfo: memFree=1811632/2059040 swapFree=4140388/4192956
[pid=30845] ppid=30843 vsize=4080 CPUtime=0.09
/proc/30845/stat : 30845 (pbct) R 30843 30845 30557 0 -1 4202496 798 0 0 0 9 0 0 0 20 0 1 0 30776157 4177920 573 1992294400 134512640 136485738 4289887696 18446744073709551615 134540940 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30845/statm: 1020 573 153 482 0 536 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4080

[startup+0.300967 s]
/proc/loadavg: 2.05 1.97 1.63 3/106 30845
/proc/meminfo: memFree=1811632/2059040 swapFree=4140388/4192956
[pid=30845] ppid=30843 vsize=8156 CPUtime=0.29
/proc/30845/stat : 30845 (pbct) R 30843 30845 30557 0 -1 4202496 1755 0 0 0 29 0 0 0 20 0 1 0 30776157 8351744 1530 1992294400 134512640 136485738 4289887696 18446744073709551615 135857059 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30845/statm: 2039 1530 157 482 0 1555 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8156

[startup+0.701004 s]
/proc/loadavg: 2.05 1.97 1.63 3/106 30845
/proc/meminfo: memFree=1811632/2059040 swapFree=4140388/4192956
[pid=30845] ppid=30843 vsize=24696 CPUtime=0.69
/proc/30845/stat : 30845 (pbct) R 30843 30845 30557 0 -1 4202496 5776 0 0 0 67 2 0 0 21 0 1 0 30776157 25288704 5551 1992294400 134512640 136485738 4289887696 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30845/statm: 6174 5551 197 482 0 5690 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 24696

[startup+1.50108 s]
/proc/loadavg: 2.05 1.97 1.63 2/107 30846
/proc/meminfo: memFree=1770084/2059040 swapFree=4140388/4192956
[pid=30845] ppid=30843 vsize=80172 CPUtime=1.49
/proc/30845/stat : 30845 (pbct) R 30843 30845 30557 0 -1 4202496 19839 0 0 0 139 10 0 0 23 0 1 0 30776157 82096128 18873 1992294400 134512640 136485738 4289887696 18446744073709551615 134725667 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30845/statm: 20043 18873 197 482 0 19559 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 80172

[startup+3.10123 s]
/proc/loadavg: 1.96 1.96 1.62 2/107 30846
/proc/meminfo: memFree=1698412/2059040 swapFree=4140388/4192956
[pid=30845] ppid=30843 vsize=184088 CPUtime=3.09
/proc/30845/stat : 30845 (pbct) R 30843 30845 30557 0 -1 4202496 47214 0 0 0 285 24 0 0 25 0 1 0 30776157 188506112 44771 1992294400 134512640 136485738 4289887696 18446744073709551615 135849052 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30845/statm: 46022 44772 197 482 0 45538 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 184088

[startup+6.30054 s]
/proc/loadavg: 1.96 1.96 1.62 2/107 30846
/proc/meminfo: memFree=1514644/2059040 swapFree=4140388/4192956
[pid=30845] ppid=30843 vsize=382640 CPUtime=6.29
/proc/30845/stat : 30845 (pbct) R 30843 30845 30557 0 -1 4202496 100570 0 0 0 580 49 0 0 25 0 1 0 30776157 391823360 94410 1992294400 134512640 136485738 4289887696 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30845/statm: 95660 94411 197 482 0 95176 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 382640

[startup+12.7011 s]
/proc/loadavg: 1.81 1.93 1.62 2/107 30846
/proc/meminfo: memFree=1224608/2059040 swapFree=4140388/4192956
[pid=30845] ppid=30843 vsize=562640 CPUtime=12.69
/proc/30845/stat : 30845 (pbct) R 30843 30845 30557 0 -1 4202496 170247 0 0 0 1193 76 0 0 25 0 1 0 30776157 576143360 140302 1992294400 134512640 136485738 4289887696 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30845/statm: 140660 140302 247 482 0 140176 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 562640

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

[startup+12.9012 s]
/proc/loadavg: 1.81 1.93 1.62 2/107 30846
/proc/meminfo: memFree=1224608/2059040 swapFree=4140388/4192956
[pid=30845] ppid=30843 vsize=562640 CPUtime=12.89
/proc/30845/stat : 30845 (pbct) R 30843 30845 30557 0 -1 4202496 170247 0 0 0 1213 76 0 0 25 0 1 0 30776157 576143360 140302 1992294400 134512640 136485738 4289887696 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30845/statm: 140660 140302 247 482 0 140176 0
Current children cumulated CPU time (s) 12.89
Current children cumulated vsize (KiB) 562640

[startup+13.0012 s]
/proc/loadavg: 1.81 1.93 1.62 2/107 30846
/proc/meminfo: memFree=1224608/2059040 swapFree=4140388/4192956
[pid=30845] ppid=30843 vsize=0 CPUtime=12.99
/proc/30845/stat : 30845 (pbct) R 30843 30845 30557 0 -1 4202500 170247 0 0 0 1219 80 0 0 25 0 1 0 30776157 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/30845/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 12.99
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 13.0162
CPU time (s): 13.013
CPU user time (s): 12.1901
CPU system time (s): 0.822874
CPU usage (%): 99.9754
Max. virtual memory (cumulated for all children) (KiB): 652260

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.1901
system time used= 0.822874
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 170247
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= 40

runsolver used 0.030995 second user time and 0.065989 second system time

The end

Launcher Data 

Begin job on node004 at 2010-06-14 23:42:03
IDJOB=2668351
IDBENCH=2425
IDSOLVER=1170
FILE ID=node004/2668351-1276551723
PBS_JOBID= 11173485
Free space on /tmp= 62548 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-scrs8.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668351-1276551723/watcher-2668351-1276551723 -o /tmp/evaluation-result-2668351-1276551723/solver-2668351-1276551723 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668351-1276551723.opb

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

MD5SUM BENCH= b043e07da3f326ab58c20906a4694dad
RANDOM SEED=1896473601

node004.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		: 3000.210
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	: 6000.42
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		: 3000.210
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:       1812152 kB
Buffers:         43932 kB
Cached:         121768 kB
SwapCached:       6520 kB
Active:          74476 kB
Inactive:       104808 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1812152 kB
SwapTotal:     4192956 kB
SwapFree:      4140388 kB
Dirty:            4140 kB
Writeback:           0 kB
AnonPages:       11632 kB
Mapped:          13064 kB
Slab:            45632 kB
PageTables:       4092 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181816 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= 62544 MiB
End job on node004 at 2010-06-14 23:42:16