Trace number 2669332

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) 49.3625 49.3845

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-pilot.opb
MD5SUM4a9548986f1546c6026976dcefa106de
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 benchmark4.94625
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables86785
Total number of constraints2481
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 constraints2481
Minimum length of a constraint10
Maximum length of a constraint7620
Number of terms in the objective function 840
Biggest coefficient in the objective function 3784939929600
Number of bits for the biggest coefficient in the objective function 42
Sum of the numbers in the objective function 93738734889723
Number of bits of the sum of numbers in the objective function 47
Biggest number in a constraint 13851269529600000
Number of bits of the biggest number in a constraint 54
Biggest sum of numbers in a constraint 368128606591816686
Number of bits of the biggest sum of numbers59
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
17.18/17.28	c constraints 2426/0 clauses 1/0 units 7639
17.18/17.28	c vars 86785
17.18/17.28	c objective 810 + -75081519115003
49.17/49.20	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-2669332-1276555475/watcher-2669332-1276555475 -o /tmp/evaluation-result-2669332-1276555475/solver-2669332-1276555475 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669332-1276555475.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: 0.98 0.98 0.99 3/106 30986
/proc/meminfo: memFree=1789960/2059040 swapFree=4140228/4192956
[pid=30986] ppid=30984 vsize=2340 CPUtime=0
/proc/30986/stat : 30986 (pbct) R 30984 30986 30593 0 -1 4202496 285 0 0 0 0 0 0 0 19 0 1 0 31149418 2396160 207 1992294400 134512640 136485738 4291824480 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30986/statm: 585 207 157 482 0 101 0

[startup+0.074963 s]
/proc/loadavg: 0.98 0.98 0.99 3/106 30986
/proc/meminfo: memFree=1789960/2059040 swapFree=4140228/4192956
[pid=30986] ppid=30984 vsize=3660 CPUtime=0.07
/proc/30986/stat : 30986 (pbct) R 30984 30986 30593 0 -1 4202496 628 0 0 0 7 0 0 0 21 0 1 0 31149418 3747840 550 1992294400 134512640 136485738 4291824480 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30986/statm: 915 552 157 482 0 431 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 3660

[startup+0.100965 s]
/proc/loadavg: 0.98 0.98 0.99 3/106 30986
/proc/meminfo: memFree=1789960/2059040 swapFree=4140228/4192956
[pid=30986] ppid=30984 vsize=4088 CPUtime=0.09
/proc/30986/stat : 30986 (pbct) R 30984 30986 30593 0 -1 4202496 737 0 0 0 9 0 0 0 21 0 1 0 31149418 4186112 659 1992294400 134512640 136485738 4291824480 18446744073709551615 135411158 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30986/statm: 1022 659 157 482 0 538 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4088

[startup+0.300987 s]
/proc/loadavg: 0.98 0.98 0.99 3/106 30986
/proc/meminfo: memFree=1789960/2059040 swapFree=4140228/4192956
[pid=30986] ppid=30984 vsize=4644 CPUtime=0.29
/proc/30986/stat : 30986 (pbct) R 30984 30986 30593 0 -1 4202496 851 0 0 0 29 0 0 0 21 0 1 0 31149418 4755456 773 1992294400 134512640 136485738 4291824480 18446744073709551615 135856817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30986/statm: 1161 773 157 482 0 677 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4644

[startup+0.70103 s]
/proc/loadavg: 0.98 0.98 0.99 3/106 30986
/proc/meminfo: memFree=1789960/2059040 swapFree=4140228/4192956
[pid=30986] ppid=30984 vsize=4908 CPUtime=0.69
/proc/30986/stat : 30986 (pbct) R 30984 30986 30593 0 -1 4202496 906 0 0 0 69 0 0 0 22 0 1 0 31149418 5025792 828 1992294400 134512640 136485738 4291824480 18446744073709551615 134538475 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30986/statm: 1227 828 157 482 0 743 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4908

[startup+1.50112 s]
/proc/loadavg: 0.98 0.98 0.99 2/107 30987
/proc/meminfo: memFree=1786976/2059040 swapFree=4140228/4192956
[pid=30986] ppid=30984 vsize=5528 CPUtime=1.49
/proc/30986/stat : 30986 (pbct) R 30984 30986 30593 0 -1 4202496 1061 0 0 0 149 0 0 0 25 0 1 0 31149418 5660672 983 1992294400 134512640 136485738 4291824480 18446744073709551615 134540981 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30986/statm: 1382 983 157 482 0 898 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5528

[startup+3.1013 s]
/proc/loadavg: 0.98 0.98 0.99 2/107 30987
/proc/meminfo: memFree=1781768/2059040 swapFree=4140228/4192956
[pid=30986] ppid=30984 vsize=12120 CPUtime=3.09
/proc/30986/stat : 30986 (pbct) R 30984 30986 30593 0 -1 4202496 2616 0 0 0 307 2 0 0 25 0 1 0 31149418 12410880 2538 1992294400 134512640 136485738 4291824480 18446744073709551615 135173200 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/30986/statm: 3030 2538 157 482 0 2546 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 12120

[startup+6.30165 s]
/proc/loadavg: 0.98 0.98 0.99 2/107 30987
/proc/meminfo: memFree=1769616/2059040 swapFree=4140228/4192956
[pid=30986] ppid=30984 vsize=24228 CPUtime=6.28
/proc/30986/stat : 30986 (pbct) R 30984 30986 30593 0 -1 4202496 5456 0 0 0 625 3 0 0 25 0 1 0 31149418 24809472 5378 1992294400 134512640 136485738 4291824480 18446744073709551615 135177480 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30986/statm: 6057 5378 157 482 0 5573 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 24228

[startup+12.7014 s]
/proc/loadavg: 1.06 1.00 1.00 2/107 30987
/proc/meminfo: memFree=1764284/2059040 swapFree=4140228/4192956
[pid=30986] ppid=30984 vsize=29716 CPUtime=12.68
/proc/30986/stat : 30986 (pbct) R 30984 30986 30593 0 -1 4202496 6715 0 0 0 1264 4 0 0 25 0 1 0 31149418 30429184 6637 1992294400 134512640 136485738 4291824480 18446744073709551615 135177438 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30986/statm: 7429 6637 157 482 0 6945 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 29716

[startup+25.5008 s]
/proc/loadavg: 1.05 1.00 1.00 2/107 30987
/proc/meminfo: memFree=1234680/2059040 swapFree=4140228/4192956
[pid=30986] ppid=30984 vsize=595272 CPUtime=25.47
/proc/30986/stat : 30986 (pbct) R 30984 30986 30593 0 -1 4202496 154902 0 0 0 2479 68 0 0 25 0 1 0 31149418 609558528 143325 1992294400 134512640 136485738 4291824480 18446744073709551615 135180190 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30986/statm: 148818 143326 198 482 0 148334 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 595272



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+49.2014 s]
/proc/loadavg: 1.03 1.00 1.00 2/107 30987
/proc/meminfo: memFree=18860/2059040 swapFree=4140228/4192956
[pid=30986] ppid=30984 vsize=1845988 CPUtime=49.17
/proc/30986/stat : 30986 (pbct) R 30984 30986 30593 0 -1 4202496 491010 0 0 0 4710 207 0 0 25 0 1 0 31149418 1890291712 442223 1992294400 134512640 136485738 4291824480 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30986/statm: 461497 442223 198 482 0 461013 0
Current children cumulated CPU time (s) 49.17
Current children cumulated vsize (KiB) 1845988

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

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

[startup+49.3094 s]
/proc/loadavg: 1.03 1.00 1.00 2/107 30987
/proc/meminfo: memFree=18860/2059040 swapFree=4140228/4192956
[pid=30986] ppid=30984 vsize=0 CPUtime=49.27
/proc/30986/stat : 30986 (pbct) R 30984 30986 30593 0 -1 4194308 491018 0 0 0 4710 217 0 0 25 0 1 0 31149418 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/30986/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 49.27
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 49.3845
CPU time (s): 49.3625
CPU user time (s): 47.1078
CPU system time (s): 2.25466
CPU usage (%): 99.9555
Max. virtual memory (cumulated for all children) (KiB): 1845988

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 47.1078
system time used= 2.25466
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 491018
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= 694

runsolver used 0.085986 second user time and 0.248962 second system time

The end

Launcher Data 

Begin job on node009 at 2010-06-15 00:44:37
IDJOB=2669332
IDBENCH=2448
IDSOLVER=1170
FILE ID=node009/2669332-1276555475
PBS_JOBID= 11173493
Free space on /tmp= 62436 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-pilot.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669332-1276555475/watcher-2669332-1276555475 -o /tmp/evaluation-result-2669332-1276555475/solver-2669332-1276555475 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669332-1276555475.opb

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

MD5SUM BENCH= 4a9548986f1546c6026976dcefa106de
RANDOM SEED=1221443794

node009.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		: 3000.199
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	: 6000.39
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		: 3000.199
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1790488 kB
Buffers:         51832 kB
Cached:         136816 kB
SwapCached:       6120 kB
Active:          96108 kB
Inactive:       105296 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1790488 kB
SwapTotal:     4192956 kB
SwapFree:      4140228 kB
Dirty:           16748 kB
Writeback:           0 kB
AnonPages:       11004 kB
Mapped:          12964 kB
Slab:            45240 kB
PageTables:       3972 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179572 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= 62436 MiB
End job on node009 at 2010-06-15 00:45:28