Trace number 1731757

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 NameAnswerCPU timeWall clock time
SAT07 reference solver: March KS 2007-02-08SAT 8.12476 8.12836

General information on the benchmark

NameCRAFTED/
edgematching/all/em_7_3_6_all.cnf
MD5SUM3264a66e18d5550049c950d1156ee464
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.524919
Satisfiable
(Un)Satisfiability was proved
Number of variables1473
Number of clauses30387
Sum of the clauses size75224
Maximum clause length25
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 221205
Number of clauses of size 37024
Number of clauses of size 4708
Number of clauses of size 51300
Number of clauses of size over 5150

Solver Data

0.79/0.84	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.79/0.84	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.79/0.84	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.79/0.84	c main()::
0.79/0.84	c initFormula():: searching for DIMACS p-line....
0.79/0.84	c full lookahead due to high density!
0.79/0.84	c initFormula():: the DIMACS p-line indicates a CNF of 1473 variables and 30387 clauses.
0.79/0.84	c parseCNF():: parsing....
0.79/0.84	c parseCNF():: the CNF contains 0 unary clauses.
0.79/0.84	c runParser():: parsing was successful, warming up engines...
0.79/0.84	c simplify_formula():: removed 0 tautological, 0 satisfied and 350 duplicate clauses
0.79/0.84	c preprocessing fase I completed:: there are now 1473 free variables and 30037 clauses.
0.79/0.84	c stat :: sign balance is biased by 12.612
0.79/0.84	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.79/0.84	c using k-SAT heuristics (size based diff)
0.79/0.84	c longest clause has size 25
0.79/0.84	c simplify_formula():: removed 0 tautological, 0 satisfied and 41375 duplicate clauses
0.79/0.84	c resolvent_look() :: found 132075 resolvents
0.79/0.84	c main():: clause / variable ratio: ( 162112 / 1473 ) = 110.06
0.79/0.84	c longest clause has size 25
0.79/0.84	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.79/0.84	c dynamic_preselect_setsize :: off
0.79/0.84	c suggested doublelook initial :: 0
0.79/0.84	c main():: all systems go!
0.79/0.84	c |----------------------------------------------------------------|
8.08/8.11	c solution bin :: .00000000000100000000000000000000
8.08/8.11	c direction branchin :: current_rights = 1
8.08/8.11	
c |
8.08/8.11	c
8.08/8.11	c main():: nodeCount: 28
8.08/8.11	c main():: dead ends in main: 0
8.08/8.11	c main():: lookAheadCount: 48258
8.08/8.11	c main():: unitResolveCount: 1493
8.08/8.11	c main():: time=8.110000
8.08/8.11	c main():: necessary_assignments: 62
8.08/8.11	c main():: bin_sat: 0, bin_unsat 0
8.08/8.11	c main():: doublelook: #: 99, succes #: 49
8.08/8.11	c main():: doublelook: overall 0.206 of all possible doublelooks executed
8.08/8.11	c main():: doublelook: succesrate: 49.495, average DL_trigger: 3231.141
8.08/8.11	c main():: SOLUTION VERIFIED :-)
8.08/8.11	s SATISFIABLE
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Verifier Data

OK

Watcher Data

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1731757-1240774127/watcher-1731757-1240774127 -o /tmp/evaluation-result-1731757-1240774127/solver-1731757-1240774127 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1731757-1240774127.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.06 1.01 1.00 3/64 29954
/proc/meminfo: memFree=1725512/2055920 swapFree=4181848/4192956
[pid=29954] ppid=29952 vsize=1032 CPUtime=0
/proc/29954/stat : 29954 (march_ks) R 29952 29954 29465 0 -1 4194304 149 0 0 0 0 0 0 0 18 0 1 0 105446656 1056768 135 1992294400 134512640 135019032 4294956224 18446744073709551615 134787695 0 0 4096 0 0 0 0 17 0 0 0
/proc/29954/statm: 258 136 47 123 0 133 0

[startup+0.102695 s]
/proc/loadavg: 1.06 1.01 1.00 3/64 29954
/proc/meminfo: memFree=1725512/2055920 swapFree=4181848/4192956
[pid=29954] ppid=29952 vsize=4968 CPUtime=0.09
/proc/29954/stat : 29954 (march_ks) R 29952 29954 29465 0 -1 4194304 1755 0 0 0 9 0 0 0 18 0 1 0 105446656 5087232 872 1992294400 134512640 135019032 4294956224 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 0 0 0
/proc/29954/statm: 1242 872 67 123 0 1117 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4968

[startup+0.201712 s]
/proc/loadavg: 1.06 1.01 1.00 3/64 29954
/proc/meminfo: memFree=1725512/2055920 swapFree=4181848/4192956
[pid=29954] ppid=29952 vsize=8780 CPUtime=0.19
/proc/29954/stat : 29954 (march_ks) R 29952 29954 29465 0 -1 4194304 3169 0 0 0 18 1 0 0 18 0 1 0 105446656 8990720 1872 1992294400 134512640 135019032 4294956224 18446744073709551615 134555008 0 0 4096 0 0 0 0 17 0 0 0
/proc/29954/statm: 2195 1872 67 123 0 2070 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 8780

[startup+0.301728 s]
/proc/loadavg: 1.06 1.01 1.00 3/64 29954
/proc/meminfo: memFree=1725512/2055920 swapFree=4181848/4192956
[pid=29954] ppid=29952 vsize=9728 CPUtime=0.29
/proc/29954/stat : 29954 (march_ks) R 29952 29954 29465 0 -1 4194304 4300 0 0 0 27 2 0 0 19 0 1 0 105446656 9961472 2037 1992294400 134512640 135019032 4294956224 18446744073709551615 134561718 0 0 4096 0 0 0 0 17 0 0 0
/proc/29954/statm: 2432 2037 67 123 0 2307 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9728

[startup+0.701799 s]
/proc/loadavg: 1.06 1.01 1.00 3/64 29954
/proc/meminfo: memFree=1725512/2055920 swapFree=4181848/4192956
[pid=29954] ppid=29952 vsize=20576 CPUtime=0.69
/proc/29954/stat : 29954 (march_ks) R 29952 29954 29465 0 -1 4194304 8962 0 0 0 66 3 0 0 23 0 1 0 105446656 21069824 3735 1992294400 134512640 135019032 4294956224 18446744073709551615 134560586 0 0 4096 0 0 0 0 17 0 0 0
/proc/29954/statm: 5144 3736 68 123 0 5019 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 20576

[startup+1.50294 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 29955
/proc/meminfo: memFree=1709760/2055920 swapFree=4181848/4192956
[pid=29954] ppid=29952 vsize=20668 CPUtime=1.49
/proc/29954/stat : 29954 (march_ks) R 29952 29954 29465 0 -1 4194304 11590 0 0 0 145 4 0 0 25 0 1 0 105446656 21164032 3999 1992294400 134512640 135019032 4294956224 18446744073709551615 134526947 0 0 4096 0 0 0 0 17 0 0 0
/proc/29954/statm: 5167 3999 72 123 0 5042 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 20668

[startup+3.10122 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 29955
/proc/meminfo: memFree=1709568/2055920 swapFree=4181848/4192956
[pid=29954] ppid=29952 vsize=20668 CPUtime=3.09
/proc/29954/stat : 29954 (march_ks) R 29952 29954 29465 0 -1 4194304 11590 0 0 0 305 4 0 0 25 0 1 0 105446656 21164032 3999 1992294400 134512640 135019032 4294956224 18446744073709551615 134537979 0 0 4096 0 0 0 0 17 0 0 0
/proc/29954/statm: 5167 3999 72 123 0 5042 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 20668

[startup+6.30178 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 29955
/proc/meminfo: memFree=1709568/2055920 swapFree=4181848/4192956
[pid=29954] ppid=29952 vsize=20668 CPUtime=6.28
/proc/29954/stat : 29954 (march_ks) R 29952 29954 29465 0 -1 4194304 11590 0 0 0 624 4 0 0 25 0 1 0 105446656 21164032 3999 1992294400 134512640 135019032 4294956224 18446744073709551615 134541823 0 0 4096 0 0 0 0 17 0 0 0
/proc/29954/statm: 5167 3999 72 123 0 5042 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 20668

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

[startup+6.4028 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 29955
/proc/meminfo: memFree=1709568/2055920 swapFree=4181848/4192956
[pid=29954] ppid=29952 vsize=20668 CPUtime=6.39
/proc/29954/stat : 29954 (march_ks) R 29952 29954 29465 0 -1 4194304 11590 0 0 0 635 4 0 0 25 0 1 0 105446656 21164032 3999 1992294400 134512640 135019032 4294956224 18446744073709551615 134526957 0 0 4096 0 0 0 0 17 0 0 0
/proc/29954/statm: 5167 3999 72 123 0 5042 0
Current children cumulated CPU time (s) 6.39
Current children cumulated vsize (KiB) 20668

[startup+7.20194 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 29955
/proc/meminfo: memFree=1709568/2055920 swapFree=4181848/4192956
[pid=29954] ppid=29952 vsize=20668 CPUtime=7.18
/proc/29954/stat : 29954 (march_ks) R 29952 29954 29465 0 -1 4194304 11590 0 0 0 714 4 0 0 25 0 1 0 105446656 21164032 3999 1992294400 134512640 135019032 4294956224 18446744073709551615 134541846 0 0 4096 0 0 0 0 17 0 0 0
/proc/29954/statm: 5167 3999 72 123 0 5042 0
Current children cumulated CPU time (s) 7.18
Current children cumulated vsize (KiB) 20668

[startup+7.60201 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 29955
/proc/meminfo: memFree=1709568/2055920 swapFree=4181848/4192956
[pid=29954] ppid=29952 vsize=20668 CPUtime=7.58
/proc/29954/stat : 29954 (march_ks) R 29952 29954 29465 0 -1 4194304 11590 0 0 0 754 4 0 0 25 0 1 0 105446656 21164032 3999 1992294400 134512640 135019032 4294956224 18446744073709551615 134538419 0 0 4096 0 0 0 0 17 0 0 0
/proc/29954/statm: 5167 3999 72 123 0 5042 0
Current children cumulated CPU time (s) 7.58
Current children cumulated vsize (KiB) 20668

[startup+8.00108 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 29955
/proc/meminfo: memFree=1709568/2055920 swapFree=4181848/4192956
[pid=29954] ppid=29952 vsize=20668 CPUtime=7.98
/proc/29954/stat : 29954 (march_ks) R 29952 29954 29465 0 -1 4194304 11590 0 0 0 794 4 0 0 25 0 1 0 105446656 21164032 3999 1992294400 134512640 135019032 4294956224 18446744073709551615 134526957 0 0 4096 0 0 0 0 17 0 0 0
/proc/29954/statm: 5167 3999 72 123 0 5042 0
Current children cumulated CPU time (s) 7.98
Current children cumulated vsize (KiB) 20668

[startup+8.1011 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 29955
/proc/meminfo: memFree=1709568/2055920 swapFree=4181848/4192956
[pid=29954] ppid=29952 vsize=20668 CPUtime=8.08
/proc/29954/stat : 29954 (march_ks) R 29952 29954 29465 0 -1 4194304 11590 0 0 0 804 4 0 0 25 0 1 0 105446656 21164032 3999 1992294400 134512640 135019032 4294956224 18446744073709551615 134585351 0 0 4096 0 0 0 0 17 0 0 0
/proc/29954/statm: 5167 3999 72 123 0 5042 0
Current children cumulated CPU time (s) 8.08
Current children cumulated vsize (KiB) 20668

Child status: 10
Real time (s): 8.12836
CPU time (s): 8.12476
CPU user time (s): 8.07177
CPU system time (s): 0.052991
CPU usage (%): 99.9557
Max. virtual memory (cumulated for all children) (KiB): 20668

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.07177
system time used= 0.052991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11592
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= 2
involuntary context switches= 10

runsolver used 0.011998 second user time and 0.024996 second system time

The end

Launcher Data

Begin job on node4 at 2009-04-26 21:28:47
IDJOB=1731757
IDBENCH=70926
IDSOLVER=559
FILE ID=node4/1731757-1240774127
PBS_JOBID= 9187169
Free space on /tmp= 66260 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/CRAFTED/edgematching/all/em_7_3_6_all.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1731757-1240774127/watcher-1731757-1240774127 -o /tmp/evaluation-result-1731757-1240774127/solver-1731757-1240774127 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1731757-1240774127.cnf            

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 3264a66e18d5550049c950d1156ee464
RANDOM SEED=1295624731

node4.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.265
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	: 5914.62
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		: 3000.265
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:       1726056 kB
Buffers:         43548 kB
Cached:         222920 kB
SwapCached:       5192 kB
Active:          93372 kB
Inactive:       181272 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1726056 kB
SwapTotal:     4192956 kB
SwapFree:      4181848 kB
Dirty:            3480 kB
Writeback:           0 kB
Mapped:          14068 kB
Slab:            41244 kB
Committed_AS:   534672 kB
PageTables:       1468 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66256 MiB
End job on node4 at 2009-04-26 21:28:55