Trace number 39434

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, and are wall clock time (not CPU 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 NameAnswerCPU timeWall clock time
bsolo 2006/05UNSAT 62.6765 62.9399

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111225605.opb
MD5SUM6f1cbef2f78310d9a2a135b1ea66aaec
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark0.606906
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1240
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00	c Time Limit set via PBTIMEOUT to 1800
0.02	c INFO: OSL Context initialized.
0.02	c Initial problem consists of 169 variables and 101 constraints.
0.02	c Using non-optimization problem switches.
0.02	c No problem reductions applied in OPT. instance.
0.02	c	preprocess terminated. Elapsed time: 0.012
0.02	c After prepocess the problem consists of 169 variables and 99 constraints.
0.04	c Restart #1 #Var: 169 LB: 0 @ 0.027
0.07	c Restart #2 #Var: 169 LB: 0 @ 0.057
0.11	c Restart #3 #Var: 169 LB: 0 @ 0.105
0.16	c Restart #4 #Var: 169 LB: 0 @ 0.152
0.24	c Restart #5 #Var: 169 LB: 0 @ 0.23
0.33	c Restart #6 #Var: 169 LB: 0 @ 0.318
0.42	c Restart #7 #Var: 169 LB: 0 @ 0.411
0.55	c Restart #8 #Var: 169 LB: 0 @ 0.543
0.73	c Restart #9 #Var: 169 LB: 0 @ 0.725
0.97	c Restart #10 #Var: 169 LB: 0 @ 0.959
1.19	c Restart #11 #Var: 169 LB: 0 @ 1.177
1.43	c Restart #12 #Var: 169 LB: 0 @ 1.417
1.67	c Restart #13 #Var: 169 LB: 0 @ 1.665
1.97	c Restart #14 #Var: 169 LB: 0 @ 1.963
2.36	c Restart #15 #Var: 169 LB: 0 @ 2.346
2.71	c Restart #16 #Var: 169 LB: 0 @ 2.694
3.36	c Restart #17 #Var: 169 LB: 0 @ 3.348
4.09	c Restart #18 #Var: 169 LB: 0 @ 4.074
4.76	c Restart #19 #Var: 169 LB: 0 @ 4.746
5.41	c Restart #20 #Var: 169 LB: 0 @ 5.394
6.32	c Restart #21 #Var: 169 LB: 0 @ 6.305
7.54	c Restart #22 #Var: 169 LB: 0 @ 7.526
8.52	c Restart #23 #Var: 169 LB: 0 @ 8.5
10.03	c Restart #24 #Var: 169 LB: 0 @ 10.015
11.02	c Restart #25 #Var: 169 LB: 0 @ 11.006
12.34	c Restart #26 #Var: 169 LB: 0 @ 12.329
13.70	c Restart #27 #Var: 168 LB: 0 @ 13.682
15.11	c Restart #28 #Var: 168 LB: 0 @ 15.089
16.33	c Restart #29 #Var: 168 LB: 0 @ 16.308
17.50	c Restart #30 #Var: 168 LB: 0 @ 17.478
19.33	c Restart #31 #Var: 168 LB: 0 @ 19.309
21.72	c Restart #32 #Var: 168 LB: 0 @ 21.704
24.39	c Restart #33 #Var: 167 LB: 0 @ 24.373
26.39	c Restart #34 #Var: 167 LB: 0 @ 26.371
30.22	c Restart #35 #Var: 167 LB: 0 @ 30.2
34.75	c Restart #36 #Var: 166 LB: 0 @ 34.728
37.96	c Restart #37 #Var: 165 LB: 0 @ 37.936
44.14	c Restart #38 #Var: 156 LB: 0 @ 44.111
49.61	c Restart #39 #Var: 156 LB: 0 @ 49.582
57.01	c Restart #40 #Var: 146 LB: 0 @ 56.983
62.69	s UNSATISFIABLE
62.69	c Exit Code: 20
62.69	c Total time: 62.656 s

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node18/watcher-39434-1149207209 -o ROOT/results/node18/solver-39434-1149207209 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node18/39434-1149207209/instance-39434-1149207209.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.62 0.85 0.84 2/64 24088
/proc/meminfo: memFree=1349032/2055920 swapFree=4180888/4192956
[pid=24088] ppid=24086 vsize=436 CPUtime=0
/proc/24088/stat : 24088 (bsolo) D 24086 24088 24043 0 -1 0 38 0 0 0 0 0 0 0 19 0 1 0 186383840 446464 23 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 7861028 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/24088/statm: 109 23 18 55 0 18 0

[startup+10.0019 s]
/proc/loadavg: 0.67 0.85 0.85 2/64 24088
/proc/meminfo: memFree=1310256/2055920 swapFree=4180888/4192956
[pid=24088] ppid=24086 vsize=43256 CPUtime=9.98
/proc/24088/stat : 24088 (bsolo) R 24086 24088 24043 0 -1 0 10070 0 0 0 992 6 0 0 25 0 1 0 186383840 44294144 9985 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134603842 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24088/statm: 10814 9985 296 55 0 9706 0
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 43256

[startup+20.0078 s]
/proc/loadavg: 0.72 0.85 0.85 2/64 24088
/proc/meminfo: memFree=1281456/2055920 swapFree=4180888/4192956
[pid=24088] ppid=24086 vsize=72040 CPUtime=19.98
/proc/24088/stat : 24088 (bsolo) R 24086 24088 24043 0 -1 0 17239 0 0 0 1986 12 0 0 25 0 1 0 186383840 73768960 17154 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24088/statm: 18010 17154 296 55 0 16902 0
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 72040

[startup+30.0138 s]
/proc/loadavg: 0.77 0.86 0.85 2/64 24088
/proc/meminfo: memFree=1263664/2055920 swapFree=4180888/4192956
[pid=24088] ppid=24086 vsize=89776 CPUtime=29.98
/proc/24088/stat : 24088 (bsolo) R 24086 24088 24043 0 -1 0 21683 0 0 0 2981 17 0 0 25 0 1 0 186383840 91930624 21598 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24088/statm: 22444 21598 296 55 0 21336 0
Current children cumulated CPU time (s) 29.98
Current children cumulated vsize (Kb) 89776

[startup+40.0198 s]
/proc/loadavg: 0.80 0.86 0.85 2/64 24088
/proc/meminfo: memFree=1250736/2055920 swapFree=4180888/4192956
[pid=24088] ppid=24086 vsize=102740 CPUtime=39.99
/proc/24088/stat : 24088 (bsolo) R 24086 24088 24043 0 -1 0 24906 0 0 0 3977 22 0 0 25 0 1 0 186383840 105205760 24820 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 8296059 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24088/statm: 25685 24820 296 55 0 24577 0
Current children cumulated CPU time (s) 39.99
Current children cumulated vsize (Kb) 102740

[startup+50.0258 s]
/proc/loadavg: 0.83 0.87 0.85 2/64 24088
/proc/meminfo: memFree=1241968/2055920 swapFree=4180888/4192956
[pid=24088] ppid=24086 vsize=111600 CPUtime=49.99
/proc/24088/stat : 24088 (bsolo) R 24086 24088 24043 0 -1 0 27095 0 0 0 4975 24 0 0 25 0 1 0 186383840 114278400 27009 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24088/statm: 27900 27009 296 55 0 26792 0
Current children cumulated CPU time (s) 49.99
Current children cumulated vsize (Kb) 111600

[startup+60.0317 s]
/proc/loadavg: 0.86 0.87 0.85 2/64 24088
/proc/meminfo: memFree=1234160/2055920 swapFree=4180888/4192956
[pid=24088] ppid=24086 vsize=119408 CPUtime=59.99
/proc/24088/stat : 24088 (bsolo) R 24086 24088 24043 0 -1 0 29050 0 0 0 5972 27 0 0 25 0 1 0 186383840 122273792 28964 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134528714 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24088/statm: 29852 28964 296 55 0 28744 0
Current children cumulated CPU time (s) 59.99
Current children cumulated vsize (Kb) 119408

Child status: 20
Real time (s): 62.9399
CPU time (s): 62.6765
CPU user time (s): 62.3745
CPU system time (s): 0.301954
CPU usage (%): 99.5814
Max. virtual memory (cumulated for all children) (Kb): 119408

Launcher Data (download as text)

Begin job on node18 on Fri Jun  2 00:13:29 UTC 2006


FILE ID= 39434-1149207209

PBS_JOBID= 293388

BENCH NAME= ROOT/tmp/node18/39434-1149207209/instance-39434-1149207209.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node18/39434-1149207209/instance-39434-1149207209.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-39434-1149207209 -o ROOT/results/node18/solver-39434-1149207209 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node18/39434-1149207209/instance-39434-1149207209.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  6f1cbef2f78310d9a2a135b1ea66aaec

RANDOM SEED= 620071578


/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		: 3000.216
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5931.00
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		: 3000.216
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1349240 kB
Buffers:         39068 kB
Cached:         591408 kB
SwapCached:       3828 kB
Active:         250264 kB
Inactive:       389036 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1349240 kB
SwapTotal:     4192956 kB
SwapFree:      4180888 kB
Dirty:             148 kB
Writeback:           0 kB
Mapped:          14668 kB
Slab:            53424 kB
Committed_AS:   204156 kB
PageTables:       1416 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node18 on Fri Jun  2 00:14:32 UTC 2006