Trace number 371678

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 2007-02-08SAT 11.6792 11.6966

General information on the benchmark

Namerandom/OnTreshold/7SAT/v45/
unif-k7-r89-v45-c4005-S1437321789-17.SAT.shuffled.cnf
MD5SUM77bdf27dae0f4a53dc64394c48246636
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.419936
Satisfiable
(Un)Satisfiability was proved
Number of variables45
Number of clauses4005
Sum of the clauses size28035
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 54005

Solver Data (download as text)

0.49/0.55	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.49/0.55	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.49/0.55	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.49/0.55	c main()::
0.49/0.55	c initFormula():: searching for DIMACS p-line....
0.49/0.55	c full lookahead due to high density!
0.49/0.55	c initFormula():: the DIMACS p-line indicates a CNF of 45 variables and 4005 clauses.
0.49/0.55	c parseCNF():: parsing....
0.49/0.55	c parseCNF():: the CNF contains 0 unary clauses.
0.49/0.55	c runParser():: parsing was successful, warming up engines...
0.49/0.55	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.49/0.55	c preprocessing fase I completed:: there are now 45 free variables and 4005 clauses.
0.49/0.55	c stat :: sign balance is biased by 0.007
0.49/0.55	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.49/0.55	c using k-SAT heuristics (size based diff)
0.49/0.55	c longest clause has size 7
0.49/0.55	c simplify_formula():: removed 0 tautological, 0 satisfied and 1 duplicate clauses
0.49/0.55	c resolvent_look() :: found 1 resolvents
0.49/0.55	c main():: clause / variable ratio: ( 4006 / 45 ) = 89.02
0.49/0.55	c longest clause has size 7
0.49/0.55	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.49/0.55	c dynamic_preselect_setsize :: off
0.49/0.55	c suggested doublelook initial :: 0
0.49/0.55	c main():: all systems go!
0.49/0.55	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 126 JD: 9
0.59/0.61	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: 1368 JD: 9
1.00/1.09	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 |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 2 NC: 6826 JD: 9
3.09/3.10	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 |***************************************
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 |****************************************************************| 3 NC: 17581 JD: 9
7.09/7.10	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 |*********************************
c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
11.59/11.68	c solution bin :: 001001101.00100100000000000000000
11.59/11.68	c direction branchin :: current_rights = 6
11.59/11.68	
c |******************************************************
11.59/11.68	c
11.59/11.68	c main():: nodeCount: 29701
11.59/11.68	c main():: dead ends in main: 44
11.59/11.68	c main():: lookAheadCount: 1243449
11.59/11.68	c main():: unitResolveCount: 50321
11.59/11.68	c main():: time=11.670000
11.59/11.68	c main():: necessary_assignments: 56
11.59/11.68	c main():: bin_sat: 0, bin_unsat 0
11.59/11.68	c main():: doublelook: #: 87706, succes #: 70514
11.59/11.68	c main():: doublelook: overall 7.198 of all possible doublelooks executed
11.59/11.68	c main():: doublelook: succesrate: 80.398, average DL_trigger: 13.785
11.59/11.68	c main():: SOLUTION VERIFIED :-)
11.59/11.68	s SATISFIABLE
11.59/11.68	v -1 2 -3 -4 -5 6 7 -8 9 10 11 12 13 14 -15 16 17 -18 -19 20 21 22 -23 -24 -25 26 -27 -28 -29 -30 31 -32 -33 -34 -35 -36 37 -38 -39 -40 -41 -42 43 44 45 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node26/watcher-371678-1177544742 -o ROOT/results/node26/solver-371678-1177544742 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371678-1177544742/march_ks /tmp/evaluation/371678-1177544742/instance-371678-1177544742.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.01 0.42 0.66 3/77 1016
/proc/meminfo: memFree=1536344/2055920 swapFree=4170240/4192956
[pid=1016] ppid=1014 vsize=656 CPUtime=0
/proc/1016/stat : 1016 (march_ks) R 1014 1016 962 0 -1 4194304 88 0 0 0 0 0 0 0 18 0 1 0 202391105 671744 74 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134684029 0 0 4096 0 0 0 0 17 1 0 0
/proc/1016/statm: 164 75 47 123 0 39 0

[startup+0.0114 s]
/proc/loadavg: 0.01 0.42 0.66 3/77 1016
/proc/meminfo: memFree=1536344/2055920 swapFree=4170240/4192956
[pid=1016] ppid=1014 vsize=936 CPUtime=0
/proc/1016/stat : 1016 (march_ks) R 1014 1016 962 0 -1 4194304 122 0 0 0 0 0 0 0 18 0 1 0 202391105 958464 107 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134558405 0 0 4096 0 0 0 0 17 1 0 0
/proc/1016/statm: 234 107 48 123 0 109 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 936

[startup+0.101408 s]
/proc/loadavg: 0.01 0.42 0.66 3/77 1016
/proc/meminfo: memFree=1536344/2055920 swapFree=4170240/4192956
[pid=1016] ppid=1014 vsize=1248 CPUtime=0.09
/proc/1016/stat : 1016 (march_ks) R 1014 1016 962 0 -1 4194304 372 0 0 0 9 0 0 0 18 0 1 0 202391105 1277952 227 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134567037 0 0 4096 0 0 0 0 17 1 0 0
/proc/1016/statm: 312 227 67 123 0 187 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1248

[startup+0.301427 s]
/proc/loadavg: 0.01 0.42 0.66 3/77 1016
/proc/meminfo: memFree=1536344/2055920 swapFree=4170240/4192956
[pid=1016] ppid=1014 vsize=1248 CPUtime=0.29
/proc/1016/stat : 1016 (march_ks) R 1014 1016 962 0 -1 4194304 372 0 0 0 29 0 0 0 20 0 1 0 202391105 1277952 227 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134567058 0 0 4096 0 0 0 0 17 1 0 0
/proc/1016/statm: 312 227 67 123 0 187 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1248

[startup+0.701468 s]
/proc/loadavg: 0.01 0.42 0.66 3/77 1016
/proc/meminfo: memFree=1536344/2055920 swapFree=4170240/4192956
[pid=1016] ppid=1014 vsize=1496 CPUtime=0.69
/proc/1016/stat : 1016 (march_ks) R 1014 1016 962 0 -1 4194304 452 0 0 0 69 0 0 0 23 0 1 0 202391105 1531904 295 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134585122 0 0 4096 0 0 0 0 17 1 0 0
/proc/1016/statm: 374 295 72 123 0 249 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1496

[startup+1.50255 s]
/proc/loadavg: 0.01 0.42 0.66 2/78 1017
/proc/meminfo: memFree=1535376/2055920 swapFree=4170240/4192956
[pid=1016] ppid=1014 vsize=1496 CPUtime=1.49
/proc/1016/stat : 1016 (march_ks) R 1014 1016 962 0 -1 4194304 452 0 0 0 149 0 0 0 25 0 1 0 202391105 1531904 295 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134549234 0 0 4096 0 0 0 0 17 1 0 0
/proc/1016/statm: 374 295 72 123 0 249 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1496

[startup+3.10171 s]
/proc/loadavg: 0.09 0.43 0.66 2/78 1017
/proc/meminfo: memFree=1535248/2055920 swapFree=4170240/4192956
[pid=1016] ppid=1014 vsize=1496 CPUtime=3.09
/proc/1016/stat : 1016 (march_ks) R 1014 1016 962 0 -1 4194304 452 0 0 0 309 0 0 0 25 0 1 0 202391105 1531904 295 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134585134 0 0 4096 0 0 0 0 17 1 0 0
/proc/1016/statm: 374 295 72 123 0 249 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1496

[startup+6.30103 s]
/proc/loadavg: 0.09 0.43 0.66 2/78 1017
/proc/meminfo: memFree=1535120/2055920 swapFree=4170240/4192956
[pid=1016] ppid=1014 vsize=1496 CPUtime=6.29
/proc/1016/stat : 1016 (march_ks) R 1014 1016 962 0 -1 4194304 452 0 0 0 629 0 0 0 25 0 1 0 202391105 1531904 295 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134585134 0 0 4096 0 0 0 0 17 1 0 0
/proc/1016/statm: 374 295 72 123 0 249 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1496

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

[startup+9.50135 s]
/proc/loadavg: 0.16 0.44 0.66 2/78 1017
/proc/meminfo: memFree=1535120/2055920 swapFree=4170240/4192956
[pid=1016] ppid=1014 vsize=1496 CPUtime=9.49
/proc/1016/stat : 1016 (march_ks) R 1014 1016 962 0 -1 4194304 452 0 0 0 949 0 0 0 25 0 1 0 202391105 1531904 295 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134527043 0 0 4096 0 0 0 0 17 1 0 0
/proc/1016/statm: 374 295 72 123 0 249 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 1496

[startup+10.3024 s]
/proc/loadavg: 0.16 0.44 0.66 2/78 1017
/proc/meminfo: memFree=1535120/2055920 swapFree=4170240/4192956
[pid=1016] ppid=1014 vsize=1496 CPUtime=10.29
/proc/1016/stat : 1016 (march_ks) R 1014 1016 962 0 -1 4194304 452 0 0 0 1029 0 0 0 25 0 1 0 202391105 1531904 295 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134585122 0 0 4096 0 0 0 0 17 1 0 0
/proc/1016/statm: 374 295 72 123 0 249 0
Current children cumulated CPU time (s) 10.29
Current children cumulated vsize (KiB) 1496

[startup+11.1015 s]
/proc/loadavg: 0.16 0.44 0.66 2/78 1017
/proc/meminfo: memFree=1535056/2055920 swapFree=4170240/4192956
[pid=1016] ppid=1014 vsize=1496 CPUtime=11.09
/proc/1016/stat : 1016 (march_ks) R 1014 1016 962 0 -1 4194304 452 0 0 0 1109 0 0 0 25 0 1 0 202391105 1531904 295 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134585178 0 0 4096 0 0 0 0 17 1 0 0
/proc/1016/statm: 374 295 72 123 0 249 0
Current children cumulated CPU time (s) 11.09
Current children cumulated vsize (KiB) 1496

[startup+11.5016 s]
/proc/loadavg: 0.16 0.44 0.66 2/78 1017
/proc/meminfo: memFree=1535056/2055920 swapFree=4170240/4192956
[pid=1016] ppid=1014 vsize=1496 CPUtime=11.49
/proc/1016/stat : 1016 (march_ks) R 1014 1016 962 0 -1 4194304 452 0 0 0 1149 0 0 0 25 0 1 0 202391105 1531904 295 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526933 0 0 4096 0 0 0 0 17 1 0 0
/proc/1016/statm: 374 295 72 123 0 249 0
Current children cumulated CPU time (s) 11.49
Current children cumulated vsize (KiB) 1496

[startup+11.6016 s]
/proc/loadavg: 0.16 0.44 0.66 2/78 1017
/proc/meminfo: memFree=1535056/2055920 swapFree=4170240/4192956
[pid=1016] ppid=1014 vsize=1496 CPUtime=11.59
/proc/1016/stat : 1016 (march_ks) R 1014 1016 962 0 -1 4194304 452 0 0 0 1159 0 0 0 25 0 1 0 202391105 1531904 295 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134677333 0 0 4096 0 0 0 0 17 1 0 0
/proc/1016/statm: 374 295 72 123 0 249 0
Current children cumulated CPU time (s) 11.59
Current children cumulated vsize (KiB) 1496

Child status: 10
Real time (s): 11.6966
CPU time (s): 11.6792
CPU user time (s): 11.6742
CPU system time (s): 0.004999
CPU usage (%): 99.8518
Max. virtual memory (cumulated for all children) (KiB): 1496

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.6742
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 454
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= 250

runsolver used 0.012998 second user time and 0.032994 second system time

The end

Launcher Data (download as text)

Begin job on node26 on Wed Apr 25 23:45:43 UTC 2007

IDJOB= 371678
IDBENCH= 19939
IDSOLVER= 180
FILE ID= node26/371678-1177544742

PBS_JOBID= 4696200

Free space on /tmp= 66456 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v45/unif-k7-r89-v45-c4005-S1437321789-17.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371678-1177544742/march_ks /tmp/evaluation/371678-1177544742/instance-371678-1177544742.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-371678-1177544742 -o ROOT/results/node26/solver-371678-1177544742 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371678-1177544742/march_ks /tmp/evaluation/371678-1177544742/instance-371678-1177544742.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  77bdf27dae0f4a53dc64394c48246636

RANDOM SEED= 159485225

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node26.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		: 3000.213
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		: 3000.213
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:       1536752 kB
Buffers:         50380 kB
Cached:         375184 kB
SwapCached:       3516 kB
Active:         286476 kB
Inactive:       162140 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1536752 kB
SwapTotal:     4192956 kB
SwapFree:      4170240 kB
Dirty:            2372 kB
Writeback:           0 kB
Mapped:          30284 kB
Slab:            56108 kB
Committed_AS:  1221700 kB
PageTables:       1716 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= 66456 MiB

End job on node26 on Wed Apr 25 23:45:55 UTC 2007