Trace number 2668775

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) 84.0662 84.0852

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/submitted-PB06/roussel/factor/
normalized-factor-sizeN=500-sizeP=251-sizeQ=500-293748522.opb
MD5SUMd8a97aba75ab281714f6a9b0774a023c
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 benchmark45.909
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 11844773043065711480323635013294239465766037117894719018089691452225120183458939186359237855339087154914381761439684078145960801002138540726341456750663926391477739601670186323216597922945296376611154942589417036267773885199147
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
6.09/6.18	c constraints 1/0 clauses 376500/0 units 0
6.09/6.18	c vars 126251
6.09/6.18	c objective 251 + 0
83.88/83.90	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-2668775-1276627643/watcher-2668775-1276627643 -o /tmp/evaluation-result-2668775-1276627643/solver-2668775-1276627643 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668775-1276627643.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: 1.23 1.06 1.02 3/106 4235
/proc/meminfo: memFree=1768936/2059040 swapFree=4136680/4192956
[pid=4235] ppid=4233 vsize=2208 CPUtime=0
/proc/4235/stat : 4235 (pbct) R 4233 4235 3985 0 -1 4202496 260 0 0 0 0 0 0 0 18 0 1 0 36419948 2260992 182 1992294400 134512640 136485738 4287623760 18446744073709551615 135177545 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4235/statm: 552 182 156 482 0 68 0

[startup+0.085728 s]
/proc/loadavg: 1.23 1.06 1.02 3/106 4235
/proc/meminfo: memFree=1768936/2059040 swapFree=4136680/4192956
[pid=4235] ppid=4233 vsize=2472 CPUtime=0.08
/proc/4235/stat : 4235 (pbct) R 4233 4235 3985 0 -1 4202496 320 0 0 0 8 0 0 0 20 0 1 0 36419948 2531328 242 1992294400 134512640 136485738 4287623760 18446744073709551615 135447014 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4235/statm: 618 242 156 482 0 134 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2472

[startup+0.100729 s]
/proc/loadavg: 1.23 1.06 1.02 3/106 4235
/proc/meminfo: memFree=1768936/2059040 swapFree=4136680/4192956
[pid=4235] ppid=4233 vsize=2472 CPUtime=0.09
/proc/4235/stat : 4235 (pbct) R 4233 4235 3985 0 -1 4202496 337 0 0 0 9 0 0 0 20 0 1 0 36419948 2531328 259 1992294400 134512640 136485738 4287623760 18446744073709551615 135562302 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4235/statm: 618 259 156 482 0 134 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2472

[startup+0.300744 s]
/proc/loadavg: 1.23 1.06 1.02 3/106 4235
/proc/meminfo: memFree=1768936/2059040 swapFree=4136680/4192956
[pid=4235] ppid=4233 vsize=3132 CPUtime=0.29
/proc/4235/stat : 4235 (pbct) R 4233 4235 3985 0 -1 4202496 481 0 0 0 29 0 0 0 20 0 1 0 36419948 3207168 403 1992294400 134512640 136485738 4287623760 18446744073709551615 135565137 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4235/statm: 783 403 156 482 0 299 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3132

[startup+0.700776 s]
/proc/loadavg: 1.23 1.06 1.02 3/106 4235
/proc/meminfo: memFree=1768936/2059040 swapFree=4136680/4192956
[pid=4235] ppid=4233 vsize=4316 CPUtime=0.69
/proc/4235/stat : 4235 (pbct) R 4233 4235 3985 0 -1 4202496 816 0 0 0 69 0 0 0 21 0 1 0 36419948 4419584 705 1992294400 134512640 136485738 4287623760 18446744073709551615 135844780 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4235/statm: 1079 705 156 482 0 595 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4316

[startup+1.50084 s]
/proc/loadavg: 1.23 1.06 1.02 2/107 4236
/proc/meminfo: memFree=1765828/2059040 swapFree=4136680/4192956
[pid=4235] ppid=4233 vsize=6684 CPUtime=1.49
/proc/4235/stat : 4235 (pbct) R 4233 4235 3985 0 -1 4202496 1483 0 0 0 148 1 0 0 23 0 1 0 36419948 6844416 1307 1992294400 134512640 136485738 4287623760 18446744073709551615 135178737 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4235/statm: 1671 1307 156 482 0 1187 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6684

[startup+3.10097 s]
/proc/loadavg: 1.21 1.06 1.02 2/107 4236
/proc/meminfo: memFree=1762356/2059040 swapFree=4136680/4192956
[pid=4235] ppid=4233 vsize=12576 CPUtime=3.09
/proc/4235/stat : 4235 (pbct) R 4233 4235 3985 0 -1 4202496 3073 0 0 0 307 2 0 0 25 0 1 0 36419948 12877824 2511 1992294400 134512640 136485738 4287623760 18446744073709551615 135856820 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4235/statm: 3144 2511 156 482 0 2660 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 12576

[startup+6.30122 s]
/proc/loadavg: 1.21 1.06 1.02 2/107 4236
/proc/meminfo: memFree=1742640/2059040 swapFree=4136680/4192956
[pid=4235] ppid=4233 vsize=49300 CPUtime=6.29
/proc/4235/stat : 4235 (pbct) R 4233 4235 3985 0 -1 4202496 12971 0 0 0 621 8 0 0 25 0 1 0 36419948 50483200 11733 1992294400 134512640 136485738 4287623760 18446744073709551615 134651007 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/4235/statm: 12325 11733 194 482 0 11841 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 49300

[startup+12.7017 s]
/proc/loadavg: 1.18 1.06 1.02 2/107 4236
/proc/meminfo: memFree=1177324/2059040 swapFree=4136680/4192956
[pid=4235] ppid=4233 vsize=661056 CPUtime=12.69
/proc/4235/stat : 4235 (pbct) R 4233 4235 3985 0 -1 4202496 175451 0 0 0 1189 80 0 0 25 0 1 0 36419948 676921344 161181 1992294400 134512640 136485738 4287623760 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/4235/statm: 165264 161181 198 482 0 164780 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 661056

[startup+25.5007 s]
/proc/loadavg: 1.15 1.05 1.02 2/107 4236
/proc/meminfo: memFree=127540/2059040 swapFree=4136680/4192956
[pid=4235] ppid=4233 vsize=1673732 CPUtime=25.48
/proc/4235/stat : 4235 (pbct) R 4233 4235 3985 0 -1 4202496 442737 0 0 0 2361 187 0 0 25 0 1 0 36419948 1713901568 410503 1992294400 134512640 136485738 4287623760 18446744073709551615 134946704 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/4235/statm: 418433 410503 210 482 0 417949 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1673732

[startup+51.1008 s]
/proc/loadavg: 1.10 1.05 1.01 2/107 4238
/proc/meminfo: memFree=38508/2059040 swapFree=4136680/4192956
[pid=4235] ppid=4233 vsize=1760652 CPUtime=51.08
/proc/4235/stat : 4235 (pbct) R 4233 4235 3985 0 -1 4202496 470822 0 0 0 4778 330 0 0 25 0 1 0 36419948 1802907648 432076 1992294400 134512640 136485738 4287623760 18446744073709551615 134659778 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/4235/statm: 440163 432076 227 482 0 439679 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 1760652



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+83.9004 s]
/proc/loadavg: 1.05 1.04 1.01 2/107 4238
/proc/meminfo: memFree=9644/2059040 swapFree=4136680/4192956
[pid=4235] ppid=4233 vsize=1843484 CPUtime=83.88
/proc/4235/stat : 4235 (pbct) R 4233 4235 3985 0 -1 4202496 511480 0 0 0 8002 386 0 0 25 0 1 0 36419948 1887727616 452908 1992294400 134512640 136485738 4287623760 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/4235/statm: 460871 452908 228 482 0 460387 0
Current children cumulated CPU time (s) 83.88
Current children cumulated vsize (KiB) 1843484

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

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

[startup+84.0084 s]
/proc/loadavg: 1.05 1.04 1.01 2/107 4238
/proc/meminfo: memFree=9644/2059040 swapFree=4136680/4192956
[pid=4235] ppid=4233 vsize=0 CPUtime=83.98
/proc/4235/stat : 4235 (pbct) R 4233 4235 3985 0 -1 4194308 511480 0 0 0 8002 396 0 0 25 0 1 0 36419948 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/4235/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 83.98
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 84.0852
CPU time (s): 84.0662
CPU user time (s): 80.0238
CPU system time (s): 4.04239
CPU usage (%): 99.9775
Max. virtual memory (cumulated for all children) (KiB): 1843484

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 80.0238
system time used= 4.04239
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 511480
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= 895

runsolver used 0.120981 second user time and 0.431934 second system time

The end

Launcher Data 

Begin job on node026 at 2010-06-15 20:47:25
IDJOB=2668775
IDBENCH=3021
IDSOLVER=1170
FILE ID=node026/2668775-1276627643
PBS_JOBID= 11172349
Free space on /tmp= 62536 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=500-293748522.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668775-1276627643/watcher-2668775-1276627643 -o /tmp/evaluation-result-2668775-1276627643/solver-2668775-1276627643 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668775-1276627643.opb

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

MD5SUM BENCH= d8a97aba75ab281714f6a9b0774a023c
RANDOM SEED=977102898

node026.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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1769216 kB
Buffers:         60656 kB
Cached:         135536 kB
SwapCached:       9808 kB
Active:          60348 kB
Inactive:       149728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1769216 kB
SwapTotal:     4192956 kB
SwapFree:      4136680 kB
Dirty:           27292 kB
Writeback:           0 kB
AnonPages:       12096 kB
Mapped:           9312 kB
Slab:            57560 kB
PageTables:       4024 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181384 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= 62532 MiB
End job on node026 at 2010-06-15 20:48:51