Trace number 2668766

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) 80.4368 80.4786

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/submitted-PB06/roussel/factor/
normalized-factor-sizeN=500-sizeP=251-sizeQ=500-280035866.opb
MD5SUMb84118647f5769628768e7496e1b2ec3
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark1
Best CPU time to get the best result obtained on this benchmark43.8073
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1
Optimality of the best value was proved YES
Number of variables126251
Total number of constraints376501
Number of constraints which are clauses376500
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint125500
Number of terms in the objective function 251
Biggest coefficient in the objective function 1809251394333065553493296640760748560207343510400633813116524750123642650624
Number of bits for the biggest coefficient in the objective function 251
Sum of the numbers in the objective function 3618502788666131106986593281521497120414687020801267626233049500247285301247
Number of bits of the sum of numbers in the objective function 251
Biggest number in a constraint 2961193260766427870080908753323559866441509279473679754522422863056280045864824078237301652581494289303756200212728639995902214134435299666298460531313288000496778442422580538845568248046109094286466596972878396512780851085312
Number of bits of the biggest number in a constraint 750
Biggest sum of numbers in a constraint 11844773043065711480323635013294239465766037117894719018089691452225120183456110041724762364928147817377348326880268577133927465386787427201119947336445574431204393880301774478140662910839812661887447658656553291795701871486491
Number of bits of the biggest sum of numbers751
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
5.49/5.51	c constraints 1/0 clauses 376500/0 units 0
5.49/5.51	c vars 126251
5.49/5.51	c objective 251 + 0
80.26/80.31	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-2668766-1276628414/watcher-2668766-1276628414 -o /tmp/evaluation-result-2668766-1276628414/solver-2668766-1276628414 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668766-1276628414.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: 1.04 1.03 1.03 3/105 12842
/proc/meminfo: memFree=1804856/2059040 swapFree=4164960/4192956
[pid=12842] ppid=12840 vsize=2208 CPUtime=0
/proc/12842/stat : 12842 (pbct) R 12840 12842 11847 0 -1 4202496 261 0 0 0 0 0 0 0 21 0 1 0 4135226 2260992 183 1992294400 134512640 136485738 4290468080 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/12842/statm: 552 183 156 482 0 68 0

[startup+0.032537 s]
/proc/loadavg: 1.04 1.03 1.03 3/105 12842
/proc/meminfo: memFree=1804856/2059040 swapFree=4164960/4192956
[pid=12842] ppid=12840 vsize=2340 CPUtime=0.03
/proc/12842/stat : 12842 (pbct) R 12840 12842 11847 0 -1 4202496 281 0 0 0 3 0 0 0 23 0 1 0 4135226 2396160 203 1992294400 134512640 136485738 4290468080 18446744073709551615 135181392 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/12842/statm: 585 203 156 482 0 101 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2340

[startup+0.100545 s]
/proc/loadavg: 1.04 1.03 1.03 3/105 12842
/proc/meminfo: memFree=1804856/2059040 swapFree=4164960/4192956
[pid=12842] ppid=12840 vsize=2472 CPUtime=0.09
/proc/12842/stat : 12842 (pbct) R 12840 12842 11847 0 -1 4202496 338 0 0 0 9 0 0 0 23 0 1 0 4135226 2531328 260 1992294400 134512640 136485738 4290468080 18446744073709551615 135567574 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/12842/statm: 618 260 156 482 0 134 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2472

[startup+0.300567 s]
/proc/loadavg: 1.04 1.03 1.03 3/105 12842
/proc/meminfo: memFree=1804856/2059040 swapFree=4164960/4192956
[pid=12842] ppid=12840 vsize=3132 CPUtime=0.29
/proc/12842/stat : 12842 (pbct) R 12840 12842 11847 0 -1 4202496 499 0 0 0 29 0 0 0 23 0 1 0 4135226 3207168 421 1992294400 134512640 136485738 4290468080 18446744073709551615 135856892 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/12842/statm: 783 421 156 482 0 299 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3132

[startup+0.700611 s]
/proc/loadavg: 1.04 1.03 1.03 3/105 12842
/proc/meminfo: memFree=1804856/2059040 swapFree=4164960/4192956
[pid=12842] ppid=12840 vsize=4448 CPUtime=0.69
/proc/12842/stat : 12842 (pbct) R 12840 12842 11847 0 -1 4202496 858 0 0 0 69 0 0 0 25 0 1 0 4135226 4554752 747 1992294400 134512640 136485738 4290468080 18446744073709551615 135565441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/12842/statm: 1112 747 156 482 0 628 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4448

[startup+1.5007 s]
/proc/loadavg: 1.04 1.03 1.03 2/106 12843
/proc/meminfo: memFree=1801376/2059040 swapFree=4164960/4192956
[pid=12842] ppid=12840 vsize=7592 CPUtime=1.49
/proc/12842/stat : 12842 (pbct) R 12840 12842 11847 0 -1 4202496 1702 0 0 0 149 0 0 0 25 0 1 0 4135226 7774208 1397 1992294400 134512640 136485738 4290468080 18446744073709551615 135416602 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/12842/statm: 1898 1397 156 482 0 1414 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7592

[startup+3.10088 s]
/proc/loadavg: 1.04 1.03 1.03 2/106 12843
/proc/meminfo: memFree=1797532/2059040 swapFree=4164960/4192956
[pid=12842] ppid=12840 vsize=13236 CPUtime=3.09
/proc/12842/stat : 12842 (pbct) R 12840 12842 11847 0 -1 4202496 3261 0 0 0 308 1 0 0 25 0 1 0 4135226 13553664 2699 1992294400 134512640 136485738 4290468080 18446744073709551615 135848165 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/12842/statm: 3309 2699 156 482 0 2825 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13236

[startup+6.30124 s]
/proc/loadavg: 1.03 1.02 1.02 2/106 12843
/proc/meminfo: memFree=1768268/2059040 swapFree=4164960/4192956
[pid=12842] ppid=12840 vsize=121140 CPUtime=6.29
/proc/12842/stat : 12842 (pbct) R 12840 12842 11847 0 -1 4202496 31433 0 0 0 615 14 0 0 25 0 1 0 4135226 124047360 29425 1992294400 134512640 136485738 4290468080 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12842/statm: 30285 29426 194 482 0 29801 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 121140

[startup+12.701 s]
/proc/loadavg: 1.03 1.02 1.02 2/106 12843
/proc/meminfo: memFree=1132892/2059040 swapFree=4164960/4192956
[pid=12842] ppid=12840 vsize=735368 CPUtime=12.68
/proc/12842/stat : 12842 (pbct) R 12840 12842 11847 0 -1 4202496 194952 0 0 0 1188 80 0 0 25 0 1 0 4135226 753016832 180682 1992294400 134512640 136485738 4290468080 18446744073709551615 135868596 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12842/statm: 183842 180683 198 482 0 183358 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 735368

[startup+25.5004 s]
/proc/loadavg: 1.02 1.02 1.02 2/106 12843
/proc/meminfo: memFree=117332/2059040 swapFree=4164960/4192956
[pid=12842] ppid=12840 vsize=1715824 CPUtime=25.48
/proc/12842/stat : 12842 (pbct) R 12840 12842 11847 0 -1 4202496 454469 0 0 0 2370 178 0 0 25 0 1 0 4135226 1757003776 421033 1992294400 134512640 136485738 4290468080 18446744073709551615 135040911 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12842/statm: 428956 421033 227 482 0 428472 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1715824

[startup+51.1002 s]
/proc/loadavg: 1.01 1.02 1.02 2/106 12852
/proc/meminfo: memFree=66360/2059040 swapFree=4164960/4192956
[pid=12842] ppid=12840 vsize=1769376 CPUtime=51.05
/proc/12842/stat : 12842 (pbct) R 12840 12842 11847 0 -1 4202496 474556 0 0 0 4820 285 0 0 25 0 1 0 4135226 1811841024 434320 1992294400 134512640 136485738 4290468080 18446744073709551615 135025302 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12842/statm: 442344 434320 228 482 0 441860 0
Current children cumulated CPU time (s) 51.05
Current children cumulated vsize (KiB) 1769376



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+80.3085 s]
/proc/loadavg: 1.01 1.02 1.02 2/106 12854
/proc/meminfo: memFree=9288/2059040 swapFree=4164960/4192956
[pid=12842] ppid=12840 vsize=1844728 CPUtime=80.26
/proc/12842/stat : 12842 (pbct) R 12840 12842 11847 0 -1 4202496 511362 0 0 0 7698 328 0 0 25 0 1 0 4135226 1889001472 453166 1992294400 134512640 136485738 4290468080 18446744073709551615 134878710 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/12842/statm: 461182 453166 228 482 0 460698 0
Current children cumulated CPU time (s) 80.26
Current children cumulated vsize (KiB) 1844728

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

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

[startup+80.4085 s]
/proc/loadavg: 1.01 1.02 1.02 2/106 12854
/proc/meminfo: memFree=9288/2059040 swapFree=4164960/4192956
[pid=12842] ppid=12840 vsize=0 CPUtime=80.36
/proc/12842/stat : 12842 (pbct) R 12840 12842 11847 0 -1 4194308 511362 0 0 0 7698 338 0 0 25 0 1 0 4135226 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/12842/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 80.36
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 80.4786
CPU time (s): 80.4368
CPU user time (s): 76.9863
CPU system time (s): 3.45048
CPU usage (%): 99.948
Max. virtual memory (cumulated for all children) (KiB): 1844728

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 76.9863
system time used= 3.45047
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 511362
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= 1061

runsolver used 0.12798 second user time and 0.404938 second system time

The end

Launcher Data 

Begin job on node087 at 2010-06-15 21:00:17
IDJOB=2668766
IDBENCH=3036
IDSOLVER=1170
FILE ID=node087/2668766-1276628414
PBS_JOBID= 11172302
Free space on /tmp= 62528 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06/final/normalized-PB06/OPT-BIGINT/submitted-PB06/roussel/factor/normalized-factor-sizeN=500-sizeP=251-sizeQ=500-280035866.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668766-1276628414/watcher-2668766-1276628414 -o /tmp/evaluation-result-2668766-1276628414/solver-2668766-1276628414 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668766-1276628414.opb

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

MD5SUM BENCH= b84118647f5769628768e7496e1b2ec3
RANDOM SEED=1774412452

node087.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		: 3000.213
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		: 3000.213
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1805260 kB
Buffers:         12868 kB
Cached:         119196 kB
SwapCached:      13564 kB
Active:          56552 kB
Inactive:       121376 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1805260 kB
SwapTotal:     4192956 kB
SwapFree:      4164960 kB
Dirty:           27296 kB
Writeback:           0 kB
AnonPages:       32236 kB
Mapped:          14640 kB
Slab:            54140 kB
PageTables:       3980 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181764 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= 62528 MiB
End job on node087 at 2010-06-15 21:01:39