Trace number 2669304

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 7.62884 7.6305

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-e226.opb
MD5SUM67e9439216588a22a7b5723524d1980a
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 benchmark2.82257
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables8460
Total number of constraints216
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 constraints216
Minimum length of a constraint30
Maximum length of a constraint3210
Number of terms in the objective function 5160
Biggest coefficient in the objective function 1563169453506560
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 45878128722315351
Number of bits of the sum of numbers in the objective function 56
Biggest number in a constraint 1563169453506560
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 45878128722315351
Number of bits of the biggest sum of numbers56
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
0.30/0.31	c constraints 206/0 clauses 0/0 units 3234
0.30/0.31	c vars 8460
0.30/0.36	c objective 3774 + -9918274135653907
5.79/5.80	c 5.38618 352.836 0 0
7.49/7.59	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-2669304-1276544312/watcher-2669304-1276544312 -o /tmp/evaluation-result-2669304-1276544312/solver-2669304-1276544312 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669304-1276544312.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: 1.31 1.04 1.01 3/106 30020
/proc/meminfo: memFree=1803132/2059040 swapFree=4164948/4192956
[pid=30020] ppid=30018 vsize=2488 CPUtime=0
/proc/30020/stat : 30020 (pbct) R 30018 30020 29797 0 -1 4202496 303 0 0 0 0 0 0 0 20 0 1 0 30034979 2547712 225 1992294400 134512640 136485738 4294384240 18446744073709551615 135565590 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30020/statm: 622 225 151 482 0 138 0

[startup+0.012318 s]
/proc/loadavg: 1.31 1.04 1.01 3/106 30020
/proc/meminfo: memFree=1803132/2059040 swapFree=4164948/4192956
[pid=30020] ppid=30018 vsize=2488 CPUtime=0.01
/proc/30020/stat : 30020 (pbct) R 30018 30020 29797 0 -1 4202496 313 0 0 0 1 0 0 0 20 0 1 0 30034979 2547712 235 1992294400 134512640 136485738 4294384240 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30020/statm: 622 235 151 482 0 138 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2488

[startup+0.101326 s]
/proc/loadavg: 1.31 1.04 1.01 3/106 30020
/proc/meminfo: memFree=1803132/2059040 swapFree=4164948/4192956
[pid=30020] ppid=30018 vsize=4104 CPUtime=0.09
/proc/30020/stat : 30020 (pbct) R 30018 30020 29797 0 -1 4202496 693 0 0 0 9 0 0 0 20 0 1 0 30034979 4202496 615 1992294400 134512640 136485738 4294384240 18446744073709551615 135857059 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30020/statm: 1026 615 157 482 0 542 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4104

[startup+0.301348 s]
/proc/loadavg: 1.31 1.04 1.01 3/106 30020
/proc/meminfo: memFree=1803132/2059040 swapFree=4164948/4192956
[pid=30020] ppid=30018 vsize=7944 CPUtime=0.3
/proc/30020/stat : 30020 (pbct) R 30018 30020 29797 0 -1 4202496 1601 0 0 0 29 1 0 0 20 0 1 0 30034979 8134656 1523 1992294400 134512640 136485738 4294384240 18446744073709551615 135416528 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30020/statm: 1986 1523 157 482 0 1502 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 7944

[startup+0.701392 s]
/proc/loadavg: 1.31 1.04 1.01 3/106 30020
/proc/meminfo: memFree=1803132/2059040 swapFree=4164948/4192956
[pid=30020] ppid=30018 vsize=36008 CPUtime=0.69
/proc/30020/stat : 30020 (pbct) R 30018 30020 29797 0 -1 4202496 8732 0 0 0 66 3 0 0 21 0 1 0 30034979 36872192 8539 1992294400 134512640 136485738 4294384240 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30020/statm: 9002 8541 197 482 0 8518 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 36008

[startup+1.50148 s]
/proc/loadavg: 1.31 1.04 1.01 2/107 30021
/proc/meminfo: memFree=1748564/2059040 swapFree=4164948/4192956
[pid=30020] ppid=30018 vsize=92464 CPUtime=1.49
/proc/30020/stat : 30020 (pbct) R 30018 30020 29797 0 -1 4202496 23650 0 0 0 139 10 0 0 23 0 1 0 30034979 94683136 22392 1992294400 134512640 136485738 4294384240 18446744073709551615 134729089 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30020/statm: 23116 22393 197 482 0 22632 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 92464

[startup+3.10166 s]
/proc/loadavg: 1.31 1.04 1.01 2/107 30021
/proc/meminfo: memFree=1680736/2059040 swapFree=4164948/4192956
[pid=30020] ppid=30018 vsize=184344 CPUtime=3.09
/proc/30020/stat : 30020 (pbct) R 30018 30020 29797 0 -1 4202496 48418 0 0 0 286 23 0 0 25 0 1 0 30034979 188768256 45298 1992294400 134512640 136485738 4294384240 18446744073709551615 135446477 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30020/statm: 46086 45299 197 482 0 45602 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 184344

[startup+6.30101 s]
/proc/loadavg: 1.28 1.04 1.01 2/107 30021
/proc/meminfo: memFree=1471804/2059040 swapFree=4164948/4192956
[pid=30020] ppid=30018 vsize=343668 CPUtime=6.29
/proc/30020/stat : 30020 (pbct) R 30018 30020 29797 0 -1 4202496 93913 0 0 0 588 41 0 0 25 0 1 0 30034979 351916032 83099 1992294400 134512640 136485738 4294384240 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30020/statm: 85917 83099 246 482 0 85433 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 343668

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

[startup+7.1011 s]
/proc/loadavg: 1.28 1.04 1.01 2/107 30021
/proc/meminfo: memFree=1478252/2059040 swapFree=4164948/4192956
[pid=30020] ppid=30018 vsize=334116 CPUtime=7.09
/proc/30020/stat : 30020 (pbct) R 30018 30020 29797 0 -1 4202496 93913 0 0 0 667 42 0 0 25 0 1 0 30034979 342134784 81059 1992294400 134512640 136485738 4294384240 18446744073709551615 135839931 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30020/statm: 83529 81059 246 482 0 83045 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 334116

[startup+7.50115 s]
/proc/loadavg: 1.28 1.04 1.01 2/107 30021
/proc/meminfo: memFree=1478252/2059040 swapFree=4164948/4192956
[pid=30020] ppid=30018 vsize=312540 CPUtime=7.49
/proc/30020/stat : 30020 (pbct) R 30018 30020 29797 0 -1 4202496 93914 0 0 0 707 42 0 0 25 0 1 0 30034979 320040960 77803 1992294400 134512640 136485738 4294384240 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30020/statm: 78135 77803 247 482 0 77651 0
Current children cumulated CPU time (s) 7.49
Current children cumulated vsize (KiB) 312540

[startup+7.60116 s]
/proc/loadavg: 1.28 1.04 1.01 2/107 30021
/proc/meminfo: memFree=1529216/2059040 swapFree=4164948/4192956
[pid=30020] ppid=30018 vsize=0 CPUtime=7.6
/proc/30020/stat : 30020 (pbct) R 30018 30020 29797 0 -1 4202500 93914 0 0 0 717 43 0 0 25 0 1 0 30034979 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/30020/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 7.6
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 7.6305
CPU time (s): 7.62884
CPU user time (s): 7.17191
CPU system time (s): 0.45693
CPU usage (%): 99.9783
Max. virtual memory (cumulated for all children) (KiB): 361036

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.17191
system time used= 0.45693
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 93914
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= 25

runsolver used 0.019996 second user time and 0.040993 second system time

The end

Launcher Data 

Begin job on node005 at 2010-06-14 21:38:33
IDJOB=2669304
IDBENCH=2386
IDSOLVER=1170
FILE ID=node005/2669304-1276544312
PBS_JOBID= 11173478
Free space on /tmp= 62560 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-e226.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669304-1276544312/watcher-2669304-1276544312 -o /tmp/evaluation-result-2669304-1276544312/solver-2669304-1276544312 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669304-1276544312.opb

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

MD5SUM BENCH= 67e9439216588a22a7b5723524d1980a
RANDOM SEED=764849872

node005.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		: 3000.246
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	: 6000.49
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		: 3000.246
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:       1803528 kB
Buffers:         41332 kB
Cached:         112008 kB
SwapCached:       1408 kB
Active:          74608 kB
Inactive:       111476 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1803528 kB
SwapTotal:     4192956 kB
SwapFree:      4164948 kB
Dirty:            3388 kB
Writeback:           0 kB
AnonPages:       31276 kB
Mapped:          14640 kB
Slab:            47568 kB
PageTables:       4048 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182256 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= 62556 MiB
End job on node005 at 2010-06-14 21:38:40