Trace number 2669502

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) 31.6932 31.7022

General information on the benchmark

Name/OPT-BIGINT-LIN/aries-da_nrp/
normalized-aries-da_network_50_2__8_45__2048.opb
MD5SUM5a6a489f861071b99676244553a9826e
Bench CategoryOPT-BIGINT-LIN (optimisation, big integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark45008
Best CPU time to get the best result obtained on this benchmark124.271
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables204848
Total number of constraints150
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)102
Number of constraints which are nor clauses,nor cardinality constraints48
Minimum length of a constraint2048
Maximum length of a constraint18433
Number of terms in the objective function 204800
Biggest coefficient in the objective function 126454
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 6874183680
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 126454
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 6874183680
Number of bits of the biggest sum of numbers33
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
2.69/2.74	c constraints 150/0 clauses 0/0 units 0
2.69/2.74	c vars 204848
2.69/2.74	c objective 204800 + 0
31.50/31.51	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-2669502-1276690840/watcher-2669502-1276690840 -o /tmp/evaluation-result-2669502-1276690840/solver-2669502-1276690840 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669502-1276690840.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: 0.91 0.95 0.98 3/106 8661
/proc/meminfo: memFree=1736572/2059040 swapFree=4140260/4192956
[pid=8661] ppid=8659 vsize=2488 CPUtime=0
/proc/8661/stat : 8661 (pbct) R 8659 8661 7710 0 -1 4202496 303 0 0 0 0 0 0 0 20 0 1 0 44685778 2547712 226 1992294400 134512640 136485738 4291858832 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/8661/statm: 622 226 149 482 0 138 0

[startup+0.068797 s]
/proc/loadavg: 0.91 0.95 0.98 3/106 8661
/proc/meminfo: memFree=1736572/2059040 swapFree=4140260/4192956
[pid=8661] ppid=8659 vsize=4080 CPUtime=0.06
/proc/8661/stat : 8661 (pbct) R 8659 8661 7710 0 -1 4202496 812 0 0 0 6 0 0 0 20 0 1 0 44685778 4177920 588 1992294400 134512640 136485738 4291858832 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/8661/statm: 1020 588 149 482 0 536 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4080

[startup+0.101799 s]
/proc/loadavg: 0.91 0.95 0.98 3/106 8661
/proc/meminfo: memFree=1736572/2059040 swapFree=4140260/4192956
[pid=8661] ppid=8659 vsize=5936 CPUtime=0.09
/proc/8661/stat : 8661 (pbct) R 8659 8661 7710 0 -1 4202496 1330 0 0 0 9 0 0 0 20 0 1 0 44685778 6078464 880 1992294400 134512640 136485738 4291858832 18446744073709551615 135180878 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/8661/statm: 1484 880 149 482 0 1000 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5936

[startup+0.301821 s]
/proc/loadavg: 0.91 0.95 0.98 3/106 8661
/proc/meminfo: memFree=1736572/2059040 swapFree=4140260/4192956
[pid=8661] ppid=8659 vsize=10092 CPUtime=0.29
/proc/8661/stat : 8661 (pbct) R 8659 8661 7710 0 -1 4202496 2959 0 0 0 29 0 0 0 20 0 1 0 44685778 10334208 2059 1992294400 134512640 136485738 4291858832 18446744073709551615 135681217 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/8661/statm: 2523 2059 149 482 0 2039 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10092

[startup+0.701866 s]
/proc/loadavg: 0.91 0.95 0.98 3/106 8661
/proc/meminfo: memFree=1736572/2059040 swapFree=4140260/4192956
[pid=8661] ppid=8659 vsize=16696 CPUtime=0.69
/proc/8661/stat : 8661 (pbct) R 8659 8661 7710 0 -1 4202496 5296 0 0 0 67 2 0 0 21 0 1 0 44685778 17096704 3369 1992294400 134512640 136485738 4291858832 18446744073709551615 134540955 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/8661/statm: 4174 3369 151 482 0 3690 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16696

[startup+1.50095 s]
/proc/loadavg: 0.91 0.95 0.98 2/107 8662
/proc/meminfo: memFree=1718088/2059040 swapFree=4140260/4192956
[pid=8661] ppid=8659 vsize=35412 CPUtime=1.49
/proc/8661/stat : 8661 (pbct) R 8659 8661 7710 0 -1 4202496 8996 0 0 0 145 4 0 0 22 0 1 0 44685778 36261888 7069 1992294400 134512640 136485738 4291858832 18446744073709551615 135856828 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/8661/statm: 8853 7069 153 482 0 8369 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 35412

[startup+3.10113 s]
/proc/loadavg: 0.91 0.95 0.98 2/107 8662
/proc/meminfo: memFree=1697380/2059040 swapFree=4140260/4192956
[pid=8661] ppid=8659 vsize=100620 CPUtime=3.09
/proc/8661/stat : 8661 (pbct) R 8659 8661 7710 0 -1 4202496 24158 0 0 0 297 12 0 0 25 0 1 0 44685778 103034880 22231 1992294400 134512640 136485738 4291858832 18446744073709551615 134725240 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/8661/statm: 25155 22233 197 482 0 24671 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 100620

[startup+6.30149 s]
/proc/loadavg: 0.92 0.95 0.98 2/107 8662
/proc/meminfo: memFree=1473684/2059040 swapFree=4140260/4192956
[pid=8661] ppid=8659 vsize=335348 CPUtime=6.29
/proc/8661/stat : 8661 (pbct) R 8659 8661 7710 0 -1 4202496 85937 0 0 0 590 39 0 0 25 0 1 0 44685778 343396352 79315 1992294400 134512640 136485738 4291858832 18446744073709551615 135346728 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/8661/statm: 83837 79316 197 482 0 83353 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 335348

[startup+12.7012 s]
/proc/loadavg: 0.93 0.95 0.98 2/107 8662
/proc/meminfo: memFree=1078496/2059040 swapFree=4140260/4192956
[pid=8661] ppid=8659 vsize=723672 CPUtime=12.69
/proc/8661/stat : 8661 (pbct) R 8659 8661 7710 0 -1 4202496 189084 0 0 0 1189 80 0 0 25 0 1 0 44685778 741040128 175516 1992294400 134512640 136485738 4291858832 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/8661/statm: 180918 175517 197 482 0 180434 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 723672

[startup+25.5016 s]
/proc/loadavg: 0.94 0.96 0.98 2/107 8662
/proc/meminfo: memFree=344664/2059040 swapFree=4140260/4192956
[pid=8661] ppid=8659 vsize=1429848 CPUtime=25.49
/proc/8661/stat : 8661 (pbct) R 8659 8661 7710 0 -1 4202496 379505 0 0 0 2391 158 0 0 25 0 1 0 44685778 1464164352 352358 1992294400 134512640 136485738 4291858832 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/8661/statm: 357462 352358 197 482 0 356978 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1429848



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+31.5013 s]
/proc/loadavg: 0.95 0.96 0.98 2/107 8662
/proc/meminfo: memFree=9560/2059040 swapFree=4140260/4192956
[pid=8661] ppid=8659 vsize=1845344 CPUtime=31.5
/proc/8661/stat : 8661 (pbct) R 8659 8661 7710 0 -1 4202496 491237 0 0 0 2943 207 0 0 25 0 1 0 44685778 1889632256 444634 1992294400 134512640 136485738 4291858832 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/8661/statm: 461336 444634 197 482 0 460852 0
Current children cumulated CPU time (s) 31.5
Current children cumulated vsize (KiB) 1845344

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

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

[startup+31.6203 s]
/proc/loadavg: 0.95 0.96 0.98 2/107 8662
/proc/meminfo: memFree=9560/2059040 swapFree=4140260/4192956
[pid=8661] ppid=8659 vsize=0 CPUtime=31.6
/proc/8661/stat : 8661 (pbct) R 8659 8661 7710 0 -1 4194308 491246 0 0 0 2943 217 0 0 25 0 1 0 44685778 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/8661/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 31.6
Current children cumulated vsize (KiB) 0

[startup+31.7013 s]
/proc/loadavg: 0.95 0.96 0.98 2/107 8662
/proc/meminfo: memFree=9560/2059040 swapFree=4140260/4192956
[pid=8661] ppid=8659 vsize=0 CPUtime=31.68
/proc/8661/stat : 8661 (pbct) R 8659 8661 7710 0 -1 4194308 491246 0 0 0 2943 225 0 0 25 0 1 0 44685778 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/8661/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 31.68
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 31.7022
CPU time (s): 31.6932
CPU user time (s): 29.4345
CPU system time (s): 2.25866
CPU usage (%): 99.9716
Max. virtual memory (cumulated for all children) (KiB): 1845344

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.4345
system time used= 2.25866
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 491246
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= 61

runsolver used 0.050992 second user time and 0.174973 second system time

The end

Launcher Data 

Begin job on node009 at 2010-06-16 14:20:40
IDJOB=2669502
IDBENCH=71870
IDSOLVER=1170
FILE ID=node009/2669502-1276690840
PBS_JOBID= 11172567
Free space on /tmp= 62544 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB09/normalized-PB09/OPT-BIGINT-LIN/aries-da_nrp/normalized-aries-da_network_50_2__8_45__2048.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669502-1276690840/watcher-2669502-1276690840 -o /tmp/evaluation-result-2669502-1276690840/solver-2669502-1276690840 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669502-1276690840.opb

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

MD5SUM BENCH= 5a6a489f861071b99676244553a9826e
RANDOM SEED=1791258427

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:       1737100 kB
Buffers:         87776 kB
Cached:         138940 kB
SwapCached:       6248 kB
Active:         118208 kB
Inactive:       121936 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1737100 kB
SwapTotal:     4192956 kB
SwapFree:      4140260 kB
Dirty:           11104 kB
Writeback:           0 kB
AnonPages:       11724 kB
Mapped:          13024 kB
Slab:            60088 kB
PageTables:       3960 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180292 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= 62544 MiB
End job on node009 at 2010-06-16 14:21:14