Trace number 2669339

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 1.18082 1.18074

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-stocfor1.opb
MD5SUM323b3a265759dd86c0c933d2225addd0
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 benchmark1.07784
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables3330
Total number of constraints117
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 constraints117
Minimum length of a constraint30
Maximum length of a constraint240
Number of terms in the objective function 810
Biggest coefficient in the objective function 159153234378752000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 3935910692489746509
Number of bits of the sum of numbers in the objective function 62
Biggest number in a constraint 159153234378752000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 3935910692489746509
Number of bits of the biggest sum of numbers62
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
0.00/0.06	c constraints 117/0 clauses 0/0 units 198
0.00/0.06	c vars 3330
0.00/0.06	c objective 810 + -2024135925216529509
0.89/0.92	c 0.85087 58.7812 7 3900
1.10/1.17	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-2669339-1276556723/watcher-2669339-1276556723 -o /tmp/evaluation-result-2669339-1276556723/solver-2669339-1276556723 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669339-1276556723.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: 0.93 0.98 1.10 3/106 31933
/proc/meminfo: memFree=1847736/2059040 swapFree=4134576/4192956
[pid=31933] ppid=31931 vsize=2340 CPUtime=0
/proc/31933/stat : 31933 (pbct) R 31931 31933 31218 0 -1 4202496 286 0 0 0 0 0 0 0 20 0 1 0 31258753 2396160 209 1992294400 134512640 136485738 4288004032 18446744073709551615 135178816 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31933/statm: 585 210 156 482 0 101 0

[startup+0.087048 s]
/proc/loadavg: 0.93 0.98 1.10 3/106 31933
/proc/meminfo: memFree=1847736/2059040 swapFree=4134576/4192956
[pid=31933] ppid=31931 vsize=6172 CPUtime=0.07
/proc/31933/stat : 31933 (pbct) R 31931 31933 31218 0 -1 4202496 1240 0 0 0 7 0 0 0 20 0 1 0 31258753 6320128 1163 1992294400 134512640 136485738 4288004032 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31933/statm: 1543 1165 197 482 0 1059 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6172

[startup+0.101049 s]
/proc/loadavg: 0.93 0.98 1.10 3/106 31933
/proc/meminfo: memFree=1847736/2059040 swapFree=4134576/4192956
[pid=31933] ppid=31931 vsize=7364 CPUtime=0.09
/proc/31933/stat : 31933 (pbct) R 31931 31933 31218 0 -1 4202496 1522 0 0 0 9 0 0 0 20 0 1 0 31258753 7540736 1445 1992294400 134512640 136485738 4288004032 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31933/statm: 1841 1446 197 482 0 1357 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7364

[startup+0.301069 s]
/proc/loadavg: 0.93 0.98 1.10 3/106 31933
/proc/meminfo: memFree=1847736/2059040 swapFree=4134576/4192956
[pid=31933] ppid=31931 vsize=21088 CPUtime=0.29
/proc/31933/stat : 31933 (pbct) R 31931 31933 31218 0 -1 4202496 4954 0 0 0 27 2 0 0 20 0 1 0 31258753 21594112 4811 1992294400 134512640 136485738 4288004032 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31933/statm: 5272 4811 197 482 0 4788 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 21088

[startup+0.70111 s]
/proc/loadavg: 0.93 0.98 1.10 3/106 31933
/proc/meminfo: memFree=1847736/2059040 swapFree=4134576/4192956
[pid=31933] ppid=31931 vsize=55148 CPUtime=0.69
/proc/31933/stat : 31933 (pbct) R 31931 31933 31218 0 -1 4202496 13803 0 0 0 63 6 0 0 20 0 1 0 31258753 56471552 13125 1992294400 134512640 136485738 4288004032 18446744073709551615 135868589 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31933/statm: 13787 13136 210 482 0 13303 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 55148

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

[startup+1.10915 s]
/proc/loadavg: 0.93 0.98 1.10 2/107 31934
/proc/meminfo: memFree=1793292/2059040 swapFree=4134576/4192956
[pid=31933] ppid=31931 vsize=56608 CPUtime=1.1
/proc/31933/stat : 31933 (pbct) R 31931 31933 31218 0 -1 4202496 15189 0 0 0 103 7 0 0 22 0 1 0 31258753 57966592 13546 1992294400 134512640 136485738 4288004032 18446744073709551615 134720130 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31933/statm: 14152 13546 249 482 0 13668 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 56608

Child status: 0
Real time (s): 1.18074
CPU time (s): 1.18082
CPU user time (s): 1.10183
CPU system time (s): 0.078987
CPU usage (%): 100.007
Max. virtual memory (cumulated for all children) (KiB): 60036

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.10183
system time used= 0.078987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15190
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= 8

runsolver used 0.008998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node017 at 2010-06-15 01:05:23
IDJOB=2669339
IDBENCH=2458
IDSOLVER=1170
FILE ID=node017/2669339-1276556723
PBS_JOBID= 11173489
Free space on /tmp= 62424 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-stocfor1.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669339-1276556723/watcher-2669339-1276556723 -o /tmp/evaluation-result-2669339-1276556723/solver-2669339-1276556723 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669339-1276556723.opb

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

MD5SUM BENCH= 323b3a265759dd86c0c933d2225addd0
RANDOM SEED=770914102

node017.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		: 3000.201
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	: 6000.40
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		: 3000.201
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	: 5599.51
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1848264 kB
Buffers:         26392 kB
Cached:         104148 kB
SwapCached:      11648 kB
Active:          82040 kB
Inactive:        62504 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1848264 kB
SwapTotal:     4192956 kB
SwapFree:      4134576 kB
Dirty:            2384 kB
Writeback:           0 kB
AnonPages:       12348 kB
Mapped:           9244 kB
Slab:            44564 kB
PageTables:       4028 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   184232 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= 62424 MiB
End job on node017 at 2010-06-15 01:05:25