Trace number 319197

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
March KS 2007-02-08UNSAT 12.6661 12.6721

General information on the benchmark

Nameindustrial/jarvisalo/
eq.atree.braun.8.unsat.cnf
MD5SUM35a8bbabf9cb954216ad71150cb47290
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.70828
Satisfiable
(Un)Satisfiability was proved
Number of variables684
Number of clauses2300
Sum of the clauses size5992
Maximum clause length15
Minimum clause length1
Number of clauses of size 13
Number of clauses of size 2978
Number of clauses of size 31284
Number of clauses of size 416
Number of clauses of size 512
Number of clauses of size over 57

Solver Data (download as text)

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.01	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 684 variables and 2300 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 3 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 33 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 681 free variables and 2267 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.085
0.00/0.01	c find_equivalence():: found 217 3-equivalences
0.00/0.01	c find_and_remove_tautogolies():: found and removed 28 tautologies
0.00/0.01	c shorten_equivalence(): average equivalence length reduced from 5.776596 to 3.473404
0.00/0.01	c using k-SAT heuristics (size based diff)
0.00/0.01	c longest clause has size 14
0.00/0.01	c simplify_formula():: removed 0 tautological, 868 satisfied and 0 duplicate clauses
0.00/0.01	c main():: clause / variable ratio: ( 1399 / 684 ) = 2.05
0.00/0.01	c longest clause has size 13
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c dynamic_preselect_setsize :: on
0.00/0.01	c suggested doublelook initial :: 0
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 184 JD: 4
1.30/1.39	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |****************************************************************| 1 NC: 1099 JD: 4
5.29/5.39	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |********
c |****************
c |*****************
c |******************
c |*******************
c |********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |********************************************************
c |****************************************************************| 2 NC: 2498 JD: 4
9.99/10.09	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |********
c |*********
c |**********
c |***********
c |************
c |****************
c |*****************
c |******************
c |*******************
c |********************
c |************************
c |********************************
c |**********************************
c |***********************************
c |************************************
c |****************************************
c |************************************************
c |****************************************************************| 3 NC: 3460 JD: 4
11.99/12.10	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 4 NC: 3710 JD: 4
12.59/12.67	c |----------------------------------------------------------------|
c |
12.59/12.67	c
12.59/12.67	c main():: nodeCount: 3710
12.59/12.67	c main():: dead ends in main: 30
12.59/12.67	c main():: lookAheadCount: 1107469
12.59/12.67	c main():: unitResolveCount: 193070
12.59/12.67	c main():: time=12.660000
12.59/12.67	c main():: necessary_assignments: 14874
12.59/12.67	c main():: bin_sat: 0, bin_unsat 0
12.59/12.67	c main():: doublelook: #: 16922, succes #: 11742
12.59/12.67	c main():: doublelook: overall 1.561 of all possible doublelooks executed
12.59/12.67	c main():: doublelook: succesrate: 69.389, average DL_trigger: 175.261
12.59/12.67	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node13/watcher-319197-1172973761 -o ROOT/results/node13/solver-319197-1172973761 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/319197-1172973761/march_ks /tmp/evaluation/319197-1172973761/instance-319197-1172973761.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): 2400 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: 0.91 0.95 0.90 3/77 4485
/proc/meminfo: memFree=1091720/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=936 CPUtime=0
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 133 0 0 0 0 0 0 0 18 0 1 0 317330593 958464 115 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134561792 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 234 115 50 123 0 109 0

[startup+0.068719 s]
/proc/loadavg: 0.91 0.95 0.90 3/77 4485
/proc/meminfo: memFree=1091720/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=1464 CPUtime=0.06
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 299 0 0 0 6 0 0 0 18 0 1 0 317330593 1499136 281 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134526703 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 366 281 72 123 0 241 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1464

[startup+0.101724 s]
/proc/loadavg: 0.91 0.95 0.90 3/77 4485
/proc/meminfo: memFree=1091720/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=1464 CPUtime=0.1
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 314 0 0 0 10 0 0 0 18 0 1 0 317330593 1499136 296 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134538194 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 366 296 72 123 0 241 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1464

[startup+0.30175 s]
/proc/loadavg: 0.91 0.95 0.90 3/77 4485
/proc/meminfo: memFree=1091720/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=1596 CPUtime=0.3
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 339 0 0 0 30 0 0 0 19 0 1 0 317330593 1634304 321 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 399 321 72 123 0 274 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1596

[startup+0.701804 s]
/proc/loadavg: 0.91 0.95 0.90 3/77 4485
/proc/meminfo: memFree=1091720/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=1728 CPUtime=0.7
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 362 0 0 0 70 0 0 0 23 0 1 0 317330593 1769472 344 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134538142 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 432 344 72 123 0 307 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1728

[startup+1.50191 s]
/proc/loadavg: 0.91 0.95 0.90 2/78 4486
/proc/meminfo: memFree=1090496/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=1860 CPUtime=1.5
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 394 0 0 0 150 0 0 0 25 0 1 0 317330593 1904640 376 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134537979 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 465 376 72 123 0 340 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1860

[startup+3.10113 s]
/proc/loadavg: 0.91 0.95 0.90 2/78 4486
/proc/meminfo: memFree=1090240/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=1992 CPUtime=3.09
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 422 0 0 0 309 0 0 0 25 0 1 0 317330593 2039808 404 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134543165 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 498 404 72 123 0 373 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1992

[startup+6.30155 s]
/proc/loadavg: 0.92 0.95 0.90 2/78 4486
/proc/meminfo: memFree=1090048/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=2124 CPUtime=6.29
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 445 0 0 0 629 0 0 0 25 0 1 0 317330593 2174976 427 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134539190 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 531 427 72 123 0 406 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2124

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

[startup+9.50198 s]
/proc/loadavg: 0.92 0.95 0.90 2/78 4486
/proc/meminfo: memFree=1089984/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=2124 CPUtime=9.49
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 456 0 0 0 949 0 0 0 25 0 1 0 317330593 2174976 438 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134526597 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 531 438 72 123 0 406 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 2124

[startup+11.1012 s]
/proc/loadavg: 0.93 0.95 0.90 2/78 4486
/proc/meminfo: memFree=1089856/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=2124 CPUtime=11.09
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 464 0 0 0 1109 0 0 0 25 0 1 0 317330593 2174976 446 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134526747 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 531 446 72 123 0 406 0
Current children cumulated CPU time (s) 11.09
Current children cumulated vsize (KiB) 2124

[startup+11.9013 s]
/proc/loadavg: 0.93 0.95 0.90 2/78 4486
/proc/meminfo: memFree=1089856/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=2124 CPUtime=11.89
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 465 0 0 0 1189 0 0 0 25 0 1 0 317330593 2174976 447 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134579085 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 531 447 72 123 0 406 0
Current children cumulated CPU time (s) 11.89
Current children cumulated vsize (KiB) 2124

[startup+12.3014 s]
/proc/loadavg: 0.93 0.95 0.90 2/78 4486
/proc/meminfo: memFree=1089856/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=2124 CPUtime=12.29
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 466 0 0 0 1229 0 0 0 25 0 1 0 317330593 2174976 448 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134526919 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 531 448 72 123 0 406 0
Current children cumulated CPU time (s) 12.29
Current children cumulated vsize (KiB) 2124

[startup+12.5014 s]
/proc/loadavg: 0.93 0.95 0.90 2/78 4486
/proc/meminfo: memFree=1089856/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=2124 CPUtime=12.49
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 466 0 0 0 1249 0 0 0 25 0 1 0 317330593 2174976 448 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134539172 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 531 448 72 123 0 406 0
Current children cumulated CPU time (s) 12.49
Current children cumulated vsize (KiB) 2124

[startup+12.6014 s]
/proc/loadavg: 0.93 0.95 0.90 2/78 4486
/proc/meminfo: memFree=1089856/2055920 swapFree=4192812/4192956
[pid=4485] ppid=4483 vsize=2124 CPUtime=12.59
/proc/4485/stat : 4485 (march_ks) R 4483 4485 2441 0 -1 4194304 467 0 0 0 1259 0 0 0 25 0 1 0 317330593 2174976 449 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134527043 0 0 4096 0 0 0 0 17 0 0 0
/proc/4485/statm: 531 449 72 123 0 406 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 2124

Child status: 20
Real time (s): 12.6721
CPU time (s): 12.6661
CPU user time (s): 12.6621
CPU system time (s): 0.003999
CPU usage (%): 99.9523
Max. virtual memory (cumulated for all children) (KiB): 2124

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.6621
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 469
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= 8
involuntary context switches= 86

runsolver used 0.018997 second user time and 0.036994 second system time

The end

Launcher Data (download as text)

Begin job on node13 on Sun Mar  4 02:02:41 UTC 2007

IDJOB= 319197
IDBENCH= 20473
IDSOLVER= 111
FILE ID= node13/319197-1172973761

PBS_JOBID= 4011840

Free space on /tmp= 66374 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/jarvisalo/eq.atree.braun.8.unsat.cnf
COMMAND LINE= /tmp/evaluation/319197-1172973761/march_ks /tmp/evaluation/319197-1172973761/instance-319197-1172973761.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-319197-1172973761 -o ROOT/results/node13/solver-319197-1172973761 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/319197-1172973761/march_ks /tmp/evaluation/319197-1172973761/instance-319197-1172973761.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  35a8bbabf9cb954216ad71150cb47290

RANDOM SEED= 49512164

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node13.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.236
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		: 3000.236
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:       1092128 kB
Buffers:         47276 kB
Cached:         795856 kB
SwapCached:          0 kB
Active:         506496 kB
Inactive:       391204 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1092128 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2484 kB
Writeback:           0 kB
Mapped:          73488 kB
Slab:            51624 kB
Committed_AS:  1516964 kB
PageTables:       1744 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= 66374 MiB

End job on node13 on Sun Mar  4 02:02:54 UTC 2007