Trace number 1732013

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
march_nn nnUNSAT 5.01324 5.03216

General information on the benchmark

NameCRAFTED/sgen/unsat/
sgen1-unsat-61-100.cnf
MD5SUM43b8e7efe061e21db6b4c047915ae87c
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.959853
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of clauses132
Sum of the clauses size396
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3132
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.00	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.00	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.00	c main()::
0.00/0.00	c initFormula():: searching for DIMACS p-line....
0.00/0.00	c initFormula():: the DIMACS p-line indicates a CNF of 61 variables and 132 clauses.
0.00/0.00	c parseCNF():: parsing....
0.00/0.00	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.00	c runParser():: parsing was successful, warming up engines...
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c preprocessing fase I completed:: there are now 61 free variables and 132 clauses.
0.00/0.00	c stat :: sign balance is biased by 0.081
0.00/0.00	c using 3-SAT heuristics (occurence based diff)
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 456 duplicate clauses
0.00/0.00	c lessRedundantTransformation():: nothing to be done.
0.00/0.00	c transformTo3SAT():: you gave me 61 variables and 132 clauses.
0.00/0.00	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.00	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.00	c transformTo3SAT():: the transformation yielded 61 variabels and 132 clauses.
0.00/0.00	c main():: clause / variable ratio: ( 132 / 61 ) = 2.16
0.00/0.00	c longest clause has size 3
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c number of free variables = 61
0.00/0.00	c dynamic_preselect_setsize :: off
0.00/0.00	c main():: all systems go!
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c |**************************************************************
c |****************************************************************| (17/999) NodeCount: 74403
4.97/5.02	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 |****************************************************************| (18/999) NodeCount: 74446
4.97/5.02	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 |****************************************************************| (19/999) NodeCount: 74459
4.97/5.03	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |********************************
c |****************************************************************| (20/999) NodeCount: 74461
4.97/5.03	c |----------------------------------------------------------------|
c |
4.97/5.03	c
4.97/5.03	c main():: nodeCount: 74461
4.97/5.03	c main():: dead ends in main: 3115
4.97/5.03	c main():: lookAheadCount: 2906751
4.97/5.03	c main():: unitResolveCount: 781776
4.97/5.03	c main():: time=5.000000
4.97/5.03	c main():: necessary_assignments: 6475
4.97/5.03	c main():: bin_sat: 0, bin_unsat 0
4.97/5.03	c main():: doublelook: #: 87984, succes #: 50143
4.97/5.03	c main():: doublelook: overall 3.205 of all possible doublelooks executed
4.97/5.03	c main():: doublelook: succesrate: 56.991, average DL_trigger: 12.759
4.97/5.03	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1732013-1240776884/watcher-1732013-1240776884 -o /tmp/evaluation-result-1732013-1240776884/solver-1732013-1240776884 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1732013-1240776884.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: 0.86 0.97 1.06 2/65 24706
/proc/meminfo: memFree=1815584/2055920 swapFree=4191356/4192956
[pid=24706] ppid=24704 vsize=840 CPUtime=0
/proc/24706/stat : 24706 (march_nn) R 24704 24706 24642 0 -1 4194304 140 0 0 0 0 0 0 0 20 0 1 0 105716187 860160 123 1992294400 134512640 135197250 4294956240 18446744073709551615 134718558 0 0 4096 0 0 0 0 17 1 0 0
/proc/24706/statm: 210 123 93 167 0 41 0

[startup+0.0213199 s]
/proc/loadavg: 0.86 0.97 1.06 2/65 24706
/proc/meminfo: memFree=1815584/2055920 swapFree=4191356/4192956
[pid=24706] ppid=24704 vsize=972 CPUtime=0.01
/proc/24706/stat : 24706 (march_nn) R 24704 24706 24642 0 -1 4194304 148 0 0 0 1 0 0 0 20 0 1 0 105716187 995328 131 1992294400 134512640 135197250 4294956240 18446744073709551615 134611704 0 0 4096 0 0 0 0 17 1 0 0
/proc/24706/statm: 243 131 93 167 0 74 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 972

[startup+0.101328 s]
/proc/loadavg: 0.86 0.97 1.06 2/65 24706
/proc/meminfo: memFree=1815584/2055920 swapFree=4191356/4192956
[pid=24706] ppid=24704 vsize=972 CPUtime=0.09
/proc/24706/stat : 24706 (march_nn) R 24704 24706 24642 0 -1 4194304 167 0 0 0 9 0 0 0 20 0 1 0 105716187 995328 150 1992294400 134512640 135197250 4294956240 18446744073709551615 134592911 0 0 4096 0 0 0 0 17 1 0 0
/proc/24706/statm: 243 150 93 167 0 74 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 972

[startup+0.301347 s]
/proc/loadavg: 0.86 0.97 1.06 2/65 24706
/proc/meminfo: memFree=1815584/2055920 swapFree=4191356/4192956
[pid=24706] ppid=24704 vsize=1108 CPUtime=0.29
/proc/24706/stat : 24706 (march_nn) R 24704 24706 24642 0 -1 4194304 210 0 0 0 29 0 0 0 22 0 1 0 105716187 1134592 193 1992294400 134512640 135197250 4294956240 18446744073709551615 134552435 0 0 4096 0 0 0 0 17 1 0 0
/proc/24706/statm: 277 193 93 167 0 108 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1108

[startup+0.701385 s]
/proc/loadavg: 0.86 0.97 1.06 2/65 24706
/proc/meminfo: memFree=1815584/2055920 swapFree=4191356/4192956
[pid=24706] ppid=24704 vsize=1276 CPUtime=0.69
/proc/24706/stat : 24706 (march_nn) R 24704 24706 24642 0 -1 4194304 250 0 0 0 69 0 0 0 25 0 1 0 105716187 1306624 233 1992294400 134512640 135197250 4294956240 18446744073709551615 134552516 0 0 4096 0 0 0 0 17 1 0 0
/proc/24706/statm: 319 233 93 167 0 150 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1276

[startup+1.50146 s]
/proc/loadavg: 0.86 0.97 1.06 2/66 24707
/proc/meminfo: memFree=1814744/2055920 swapFree=4191356/4192956
[pid=24706] ppid=24704 vsize=1656 CPUtime=1.49
/proc/24706/stat : 24706 (march_nn) R 24704 24706 24642 0 -1 4194304 327 0 0 0 149 0 0 0 25 0 1 0 105716187 1695744 310 1992294400 134512640 135197250 4294956240 18446744073709551615 134556321 0 0 4096 0 0 0 0 17 1 0 0
/proc/24706/statm: 414 310 93 167 0 245 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1656

[startup+3.10162 s]
/proc/loadavg: 0.86 0.97 1.06 2/66 24707
/proc/meminfo: memFree=1814232/2055920 swapFree=4191356/4192956
[pid=24706] ppid=24704 vsize=2508 CPUtime=3.08
/proc/24706/stat : 24706 (march_nn) R 24704 24706 24642 0 -1 4194304 471 0 0 0 308 0 0 0 25 0 1 0 105716187 2568192 454 1992294400 134512640 135197250 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/24706/statm: 627 454 93 167 0 458 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 2508

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

[startup+3.9017 s]
/proc/loadavg: 0.87 0.97 1.06 2/66 24707
/proc/meminfo: memFree=1813848/2055920 swapFree=4191356/4192956
[pid=24706] ppid=24704 vsize=2672 CPUtime=3.88
/proc/24706/stat : 24706 (march_nn) R 24704 24706 24642 0 -1 4194304 562 0 0 0 388 0 0 0 25 0 1 0 105716187 2736128 545 1992294400 134512640 135197250 4294956240 18446744073709551615 134522781 0 0 4096 0 0 0 0 17 1 0 0
/proc/24706/statm: 668 545 93 167 0 499 0
Current children cumulated CPU time (s) 3.88
Current children cumulated vsize (KiB) 2672

[startup+4.70178 s]
/proc/loadavg: 0.87 0.97 1.06 2/66 24707
/proc/meminfo: memFree=1813344/2055920 swapFree=4191356/4192956
[pid=24706] ppid=24704 vsize=3436 CPUtime=4.68
/proc/24706/stat : 24706 (march_nn) R 24704 24706 24642 0 -1 4194304 629 0 0 0 468 0 0 0 25 0 1 0 105716187 3518464 612 1992294400 134512640 135197250 4294956240 18446744073709551615 134548501 0 0 4096 0 0 0 0 17 1 0 0
/proc/24706/statm: 859 612 93 167 0 690 0
Current children cumulated CPU time (s) 4.68
Current children cumulated vsize (KiB) 3436

[startup+4.90179 s]
/proc/loadavg: 0.87 0.97 1.06 2/66 24707
/proc/meminfo: memFree=1813344/2055920 swapFree=4191356/4192956
[pid=24706] ppid=24704 vsize=3436 CPUtime=4.87
/proc/24706/stat : 24706 (march_nn) R 24704 24706 24642 0 -1 4194304 644 0 0 0 487 0 0 0 25 0 1 0 105716187 3518464 627 1992294400 134512640 135197250 4294956240 18446744073709551615 134605238 0 0 4096 0 0 0 0 17 1 0 0
/proc/24706/statm: 859 627 93 167 0 690 0
Current children cumulated CPU time (s) 4.87
Current children cumulated vsize (KiB) 3436

[startup+5.00281 s]
/proc/loadavg: 0.87 0.97 1.06 2/66 24707
/proc/meminfo: memFree=1813344/2055920 swapFree=4191356/4192956
[pid=24706] ppid=24704 vsize=3436 CPUtime=4.97
/proc/24706/stat : 24706 (march_nn) R 24704 24706 24642 0 -1 4194304 652 0 0 0 497 0 0 0 25 0 1 0 105716187 3518464 635 1992294400 134512640 135197250 4294956240 18446744073709551615 134605238 0 0 4096 0 0 0 0 17 1 0 0
/proc/24706/statm: 859 635 93 167 0 690 0
Current children cumulated CPU time (s) 4.97
Current children cumulated vsize (KiB) 3436

Child status: 20
Real time (s): 5.03216
CPU time (s): 5.01324
CPU user time (s): 5.00524
CPU system time (s): 0.007998
CPU usage (%): 99.624
Max. virtual memory (cumulated for all children) (KiB): 3436

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.00524
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 654
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= 1089

runsolver used 0.011998 second user time and 0.029995 second system time

The end

Launcher Data 

Begin job on node56 at 2009-04-26 22:14:44
IDJOB=1732013
IDBENCH=71108
IDSOLVER=522
FILE ID=node56/1732013-1240776884
PBS_JOBID= 9187254
Free space on /tmp= 103060 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/CRAFTED/sgen/unsat/sgen1-unsat-61-100.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1732013-1240776884/watcher-1732013-1240776884 -o /tmp/evaluation-result-1732013-1240776884/solver-1732013-1240776884 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1732013-1240776884.cnf

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

MD5SUM BENCH= 43b8e7efe061e21db6b4c047915ae87c
RANDOM SEED=1976729115

node56.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		: 3000.218
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		: 3000.218
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:       1816000 kB
Buffers:         22468 kB
Cached:         145928 kB
SwapCached:        924 kB
Active:          44464 kB
Inactive:       137792 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1816000 kB
SwapTotal:     4192956 kB
SwapFree:      4191356 kB
Dirty:            1024 kB
Writeback:           0 kB
Mapped:          22528 kB
Slab:            43612 kB
Committed_AS:   368528 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= 103060 MiB
End job on node56 at 2009-04-26 22:14:50