Trace number 423873

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
SATzilla RANDOMSAT 2.12668 2.12973

General information on the benchmark

Namerandom/2+p/p0.7/v6500/
unif2p-p0.7-v6500-c17355-S2060375179-19-SAT.cnf
MD5SUM2436f6f433943d85ff751898805eafae
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.563913
Satisfiable
(Un)Satisfiability was proved
Number of variables6500
Number of clauses17354
Sum of the clauses size46856
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 25206
Number of clauses of size 312148
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

2.09/2.12	c run March_dl for 5 seconds ... 
2.09/2.12	c Bin: Executing march_dl
2.09/2.12	c child exited successfully
2.09/2.12	c march_dl returned code 10.
2.09/2.12	c main():: ***                                   [ march satisfiability solver ]                                   ***
2.09/2.12	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
2.09/2.12	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
2.09/2.12	c main()::
2.09/2.12	c initFormula():: searching for DIMACS p-line....
2.09/2.12	c initFormula():: the DIMACS p-line indicates a CNF of 6500 variables and 17354 clauses.
2.09/2.12	c parseCNF():: parsing....
2.09/2.12	c parseCNF():: the CNF contains 0 unary clauses.
2.09/2.12	c runParser():: parsing was successful, warming up engines...
2.09/2.12	c simplify_formula():: removed 0 tautological, 1661 satisfied and 0 duplicate clauses
2.09/2.12	c preprocessing fase I completed:: there are now 6049 free variables and 15693 clauses.
2.09/2.12	c shorten_equivalence(): average equivalence length reduced from nan to nan
2.09/2.12	c doublelook_init():: 90% succes rate goal.
2.09/2.12	c root_subsume():: 25 ternary clauses were subsumed, nrofceq = 318
2.09/2.12	c find_and_remove_tautogolies():: found and removed 305 tautologies
2.09/2.12	c root_subsume():: 1 ternary clauses were subsumed, nrofceq = 323
2.09/2.12	c find_and_remove_tautogolies():: found and removed 5 tautologies
2.09/2.12	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 323
2.09/2.12	c lessRedundantTransformation():: nothing to be done.
2.09/2.12	c transformTo3SAT():: you gave me 6500 variables and 15476 clauses.
2.09/2.12	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
2.09/2.12	c transformTo3SAT():: CHAINPLUS defined.
2.09/2.12	c transformTo3SAT():: I will add 0 variables and 0 clauses!
2.09/2.12	c transformTo3SAT():: the transformation yielded 6500 variabels and 15476 clauses.
2.09/2.12	c main():: clause / variable ratio: ( 15476 / 6500 ) = 2.38
2.09/2.12	c lengthWeight[ 2 ] = 3.97 : 1.00
2.09/2.12	c lengthWeight[ 3 ] = 3.38 : 0.85
2.09/2.12	c lengthWeight[ 4 ] = 2.87 : 0.72
2.09/2.12	c lengthWeight[ 5 ] = 2.44 : 0.61
2.09/2.12	c doublelook_init():: 90% succes rate goal.
2.09/2.12	c AddTernaryResolvents(): ternary clauses increased from 15476 to 15489
2.09/2.12	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 323
2.09/2.12	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
2.09/2.12	c check_ternary_clause_density :: low
2.09/2.12	c root full lookahead
2.09/2.12	c freevars: 5727, independend: 5727, ternary clauses: 10816 
2.09/2.12	c main():: all systems go!
2.09/2.12	c |----------------------------------------------------------------|
c |
2.09/2.12	c
2.09/2.12	c main():: nodeCount: 1227
2.09/2.12	c main():: dead ends in main: 0
2.09/2.12	c main():: lookAheadCount: 524834
2.09/2.12	c main():: unitResolveCount: 16459
2.09/2.12	c main():: time=2.110000
2.09/2.12	c main():: necessary_assignments: 342
2.09/2.12	c main():: bin_sat: 0, bin_unsat 0
2.09/2.12	c main():: doublelook: #: 35, succes #: 33
2.09/2.12	c main():: doublelook: succesrate: 94.286, threshold: 0.083 * nrofvars
2.09/2.12	c main():: SOLUTION VERIFIED :-)
2.09/2.12	s SATISFIABLE
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2.09/2.12	c SATZILLA_TIME=2.110000

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/node9/watcher-423873-1177830222 -o ROOT/results/node9/solver-423873-1177830222 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/423873-1177830222/SATzilla2007_R /tmp/evaluation/423873-1177830222/instance-423873-1177830222.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: 1.07 1.00 0.99 3/77 10080
/proc/meminfo: memFree=1724496/2055920 swapFree=4144424/4192956
[pid=10080] ppid=10078 vsize=1440 CPUtime=0
/proc/10080/stat : 10080 (SATzilla2007_R) R 10078 10080 9370 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 259059818 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216547 0 0 4096 0 0 0 0 17 1 0 0
/proc/10080/statm: 360 110 95 260 0 84 0
[pid=10081] ppid=10080 vsize=1192 CPUtime=0
/proc/10081/stat : 10081 (march_dl) R 10080 10080 9370 0 -1 4194304 187 0 0 0 0 0 0 0 18 0 1 0 259059818 1220608 182 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134669245 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10081/statm: 298 182 50 118 0 177 0

[startup+0.0402761 s]
/proc/loadavg: 1.07 1.00 0.99 3/77 10080
/proc/meminfo: memFree=1724496/2055920 swapFree=4144424/4192956
[pid=10080] ppid=10078 vsize=1440 CPUtime=0
/proc/10080/stat : 10080 (SATzilla2007_R) S 10078 10080 9370 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 259059818 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/10080/statm: 360 110 95 260 0 84 0
[pid=10081] ppid=10080 vsize=2044 CPUtime=0.03
/proc/10081/stat : 10081 (march_dl) R 10080 10080 9370 0 -1 4194304 467 0 0 0 3 0 0 0 19 0 1 0 259059818 2093056 381 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134544603 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10081/statm: 511 381 53 118 0 390 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3484

[startup+0.102276 s]
/proc/loadavg: 1.07 1.00 0.99 3/77 10080
/proc/meminfo: memFree=1724496/2055920 swapFree=4144424/4192956
[pid=10080] ppid=10078 vsize=1440 CPUtime=0
/proc/10080/stat : 10080 (SATzilla2007_R) S 10078 10080 9370 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 259059818 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/10080/statm: 360 110 95 260 0 84 0
[pid=10081] ppid=10080 vsize=2660 CPUtime=0.09
/proc/10081/stat : 10081 (march_dl) R 10080 10080 9370 0 -1 4194304 1193 0 0 0 9 0 0 0 19 0 1 0 259059818 2723840 530 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134649638 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10081/statm: 665 530 55 118 0 544 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4100

[startup+0.301296 s]
/proc/loadavg: 1.07 1.00 0.99 3/77 10080
/proc/meminfo: memFree=1724496/2055920 swapFree=4144424/4192956
[pid=10080] ppid=10078 vsize=1440 CPUtime=0
/proc/10080/stat : 10080 (SATzilla2007_R) S 10078 10080 9370 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 259059818 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/10080/statm: 360 110 95 260 0 84 0
[pid=10081] ppid=10080 vsize=4832 CPUtime=0.28
/proc/10081/stat : 10081 (march_dl) R 10080 10080 9370 0 -1 4194304 3102 0 0 0 28 0 0 0 21 0 1 0 259059818 4947968 1078 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134651794 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10081/statm: 1208 1078 65 118 0 1087 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6272

[startup+0.70134 s]
/proc/loadavg: 1.07 1.00 0.99 3/77 10080
/proc/meminfo: memFree=1724496/2055920 swapFree=4144424/4192956
[pid=10080] ppid=10078 vsize=1440 CPUtime=0
/proc/10080/stat : 10080 (SATzilla2007_R) S 10078 10080 9370 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 259059818 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/10080/statm: 360 110 95 260 0 84 0
[pid=10081] ppid=10080 vsize=6908 CPUtime=0.69
/proc/10081/stat : 10081 (march_dl) R 10080 10080 9370 0 -1 4194304 4057 0 0 0 68 1 0 0 25 0 1 0 259059818 7073792 1567 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134527302 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10081/statm: 1727 1567 75 118 0 1606 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8348

[startup+1.50143 s]
/proc/loadavg: 1.07 1.00 0.99 2/79 10082
/proc/meminfo: memFree=1718080/2055920 swapFree=4144424/4192956
[pid=10080] ppid=10078 vsize=1440 CPUtime=0
/proc/10080/stat : 10080 (SATzilla2007_R) S 10078 10080 9370 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 259059818 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/10080/statm: 360 110 95 260 0 84 0
[pid=10081] ppid=10080 vsize=7496 CPUtime=1.49
/proc/10081/stat : 10081 (march_dl) R 10080 10080 9370 0 -1 4194304 4210 0 0 0 148 1 0 0 25 0 1 0 259059818 7675904 1720 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134528303 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10081/statm: 1874 1720 75 118 0 1753 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8936

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

[startup+1.90148 s]
/proc/loadavg: 1.07 1.00 0.99 2/79 10082
/proc/meminfo: memFree=1718080/2055920 swapFree=4144424/4192956
[pid=10080] ppid=10078 vsize=1440 CPUtime=0
/proc/10080/stat : 10080 (SATzilla2007_R) S 10078 10080 9370 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 259059818 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/10080/statm: 360 110 95 260 0 84 0
[pid=10081] ppid=10080 vsize=7828 CPUtime=1.89
/proc/10081/stat : 10081 (march_dl) R 10080 10080 9370 0 -1 4194304 4244 0 0 0 188 1 0 0 25 0 1 0 259059818 8015872 1754 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134536997 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10081/statm: 1957 1754 75 118 0 1836 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 9268

[startup+2.1015 s]
/proc/loadavg: 1.06 1.00 0.99 2/79 10082
/proc/meminfo: memFree=1717568/2055920 swapFree=4144424/4192956
[pid=10080] ppid=10078 vsize=1440 CPUtime=0
/proc/10080/stat : 10080 (SATzilla2007_R) S 10078 10080 9370 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 259059818 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/10080/statm: 360 110 95 260 0 84 0
[pid=10081] ppid=10080 vsize=7868 CPUtime=2.09
/proc/10081/stat : 10081 (march_dl) R 10080 10080 9370 0 -1 4194304 4258 0 0 0 208 1 0 0 25 0 1 0 259059818 8056832 1768 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134536997 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10081/statm: 1967 1768 75 118 0 1846 0
Current children cumulated CPU time (s) 2.09
Current children cumulated vsize (KiB) 9308

Child status: 10
Real time (s): 2.12973
CPU time (s): 2.12668
CPU user time (s): 2.10668
CPU system time (s): 0.019996
CPU usage (%): 99.8567
Max. virtual memory (cumulated for all children) (KiB): 9308

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.10668
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4417
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= 43
involuntary context switches= 45

runsolver used 0.002999 second user time and 0.013997 second system time

The end

Launcher Data (download as text)

Begin job on node9 on Sun Apr 29 07:03:43 UTC 2007

IDJOB= 423873
IDBENCH= 20207
IDSOLVER= 191
FILE ID= node9/423873-1177830222

PBS_JOBID= 4718252

Free space on /tmp= 66556 MiB

SOLVER NAME= SATzilla RANDOM
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v6500/unif2p-p0.7-v6500-c17355-S2060375179-19-SAT.cnf
COMMAND LINE= /tmp/evaluation/423873-1177830222/SATzilla2007_R /tmp/evaluation/423873-1177830222/instance-423873-1177830222.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-423873-1177830222 -o ROOT/results/node9/solver-423873-1177830222 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/423873-1177830222/SATzilla2007_R /tmp/evaluation/423873-1177830222/instance-423873-1177830222.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  2436f6f433943d85ff751898805eafae

RANDOM SEED= 838435941

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node9.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		: 3000.221
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		: 3000.221
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:       1725096 kB
Buffers:         42392 kB
Cached:         215604 kB
SwapCached:      16792 kB
Active:         206480 kB
Inactive:        75884 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1725096 kB
SwapTotal:     4192956 kB
SwapFree:      4144424 kB
Dirty:            8636 kB
Writeback:           0 kB
Mapped:          30176 kB
Slab:            34008 kB
Committed_AS:  6681648 kB
PageTables:       1784 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= 66556 MiB

End job on node9 on Sun Apr 29 07:03:45 UTC 2007