Trace number 423986

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 RANDOMUNSAT 1.64875 1.65189

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1893175053-01-UNSAT.cnf
MD5SUMda575672f9caad385bd5edff99ee5f4d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.43178
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

1.59/1.65	c run March_dl for 5 seconds ... 
1.59/1.65	c Bin: Executing march_dl
1.59/1.65	c child exited successfully
1.59/1.65	c march_dl returned code 20.
1.59/1.65	c main():: ***                                   [ march satisfiability solver ]                                   ***
1.59/1.65	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
1.59/1.65	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
1.59/1.65	c main()::
1.59/1.65	c initFormula():: searching for DIMACS p-line....
1.59/1.65	c initFormula():: the DIMACS p-line indicates a CNF of 630 variables and 2280 clauses.
1.59/1.65	c parseCNF():: parsing....
1.59/1.65	c parseCNF():: the CNF contains 0 unary clauses.
1.59/1.65	c runParser():: parsing was successful, warming up engines...
1.59/1.65	c simplify_formula():: removed 0 tautological, 30 satisfied and 0 duplicate clauses
1.59/1.65	c preprocessing fase I completed:: there are now 624 free variables and 2250 clauses.
1.59/1.65	c shorten_equivalence(): average equivalence length reduced from nan to nan
1.59/1.65	c doublelook_init():: 90% succes rate goal.
1.59/1.65	c root_subsume():: 10 ternary clauses were subsumed, nrofceq = 3
1.59/1.65	c find_and_remove_tautogolies():: found and removed 3 tautologies
1.59/1.65	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 3
1.59/1.65	c lessRedundantTransformation():: nothing to be done.
1.59/1.65	c transformTo3SAT():: you gave me 630 variables and 2252 clauses.
1.59/1.65	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
1.59/1.65	c transformTo3SAT():: CHAINPLUS defined.
1.59/1.65	c transformTo3SAT():: I will add 0 variables and 0 clauses!
1.59/1.65	c transformTo3SAT():: the transformation yielded 630 variabels and 2252 clauses.
1.59/1.65	c main():: clause / variable ratio: ( 2252 / 630 ) = 3.57
1.59/1.65	c doublelook_init():: 90% succes rate goal.
1.59/1.65	c AddTernaryResolvents(): ternary clauses increased from 2252 to 2309
1.59/1.65	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 3
1.59/1.65	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
1.59/1.65	c check_ternary_clause_density :: high
1.59/1.65	c root full lookahead
1.59/1.65	c freevars: 621, independend: 621, ternary clauses: 2070 
1.59/1.65	c main():: all systems go!
1.59/1.65	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 |**************************************************
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c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
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c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |****************************************************************
c |****************************************************************
1.59/1.65	c
1.59/1.65	c main():: nodeCount: 2703
1.59/1.65	c main():: dead ends in main: 14
1.59/1.65	c main():: lookAheadCount: 444036
1.59/1.65	c main():: unitResolveCount: 41049
1.59/1.65	c main():: time=1.640000
1.59/1.65	c main():: necessary_assignments: 977
1.59/1.65	c main():: bin_sat: 0, bin_unsat 0
1.59/1.65	c main():: doublelook: #: 7239, succes #: 6515
1.59/1.65	c main():: doublelook: succesrate: 89.999, threshold: 0.146 * nrofvars
1.59/1.65	s UNSATISFIABLE
1.59/1.65	c SATZILLA_TIME=1.640000

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node70/watcher-423986-1177831422 -o ROOT/results/node70/solver-423986-1177831422 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/423986-1177831422/SATzilla2007_R /tmp/evaluation/423986-1177831422/instance-423986-1177831422.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: 0.99 1.02 1.31 3/64 5818
/proc/meminfo: memFree=1486832/2055920 swapFree=4183812/4192956
[pid=5818] ppid=5816 vsize=1440 CPUtime=0
/proc/5818/stat : 5818 (SATzilla2007_R) R 5816 5818 4685 0 -1 4194304 126 0 0 0 0 0 0 0 19 0 1 0 222679508 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216547 0 0 4096 0 0 0 0 17 1 0 0
/proc/5818/statm: 360 110 95 260 0 84 0
[pid=5819] ppid=5818 vsize=636 CPUtime=0
/proc/5819/stat : 5819 (march_dl) R 5818 5818 4685 0 -1 4194304 82 0 0 0 0 0 0 0 19 0 1 0 222679508 651264 77 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134775698 0 0 8392704 0 0 0 0 17 1 0 0
/proc/5819/statm: 159 77 50 118 0 38 0

[startup+0.0081679 s]
/proc/loadavg: 0.99 1.02 1.31 3/64 5818
/proc/meminfo: memFree=1486832/2055920 swapFree=4183812/4192956
[pid=5818] ppid=5816 vsize=1440 CPUtime=0
/proc/5818/stat : 5818 (SATzilla2007_R) S 5816 5818 4685 0 -1 4194304 127 0 0 0 0 0 0 0 19 0 1 0 222679508 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/5818/statm: 360 110 95 260 0 84 0
[pid=5819] ppid=5818 vsize=776 CPUtime=0
/proc/5819/stat : 5819 (march_dl) R 5818 5818 4685 0 -1 4194304 127 0 0 0 0 0 0 0 19 0 1 0 222679508 794624 119 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134525015 0 0 8392704 0 0 0 0 17 1 0 0
/proc/5819/statm: 194 119 55 118 0 73 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2216

[startup+0.101175 s]
/proc/loadavg: 0.99 1.02 1.31 3/64 5818
/proc/meminfo: memFree=1486832/2055920 swapFree=4183812/4192956
[pid=5818] ppid=5816 vsize=1440 CPUtime=0
/proc/5818/stat : 5818 (SATzilla2007_R) S 5816 5818 4685 0 -1 4194304 127 0 0 0 0 0 0 0 19 0 1 0 222679508 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/5818/statm: 360 110 95 260 0 84 0
[pid=5819] ppid=5818 vsize=1320 CPUtime=0.09
/proc/5819/stat : 5819 (march_dl) R 5818 5818 4685 0 -1 4194304 274 0 0 0 9 0 0 0 22 0 1 0 222679508 1351680 266 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134536701 0 0 8392704 0 0 0 0 17 1 0 0
/proc/5819/statm: 330 266 74 118 0 209 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2760

[startup+0.301194 s]
/proc/loadavg: 0.99 1.02 1.31 3/64 5818
/proc/meminfo: memFree=1486832/2055920 swapFree=4183812/4192956
[pid=5818] ppid=5816 vsize=1440 CPUtime=0
/proc/5818/stat : 5818 (SATzilla2007_R) S 5816 5818 4685 0 -1 4194304 127 0 0 0 0 0 0 0 19 0 1 0 222679508 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/5818/statm: 360 110 95 260 0 84 0
[pid=5819] ppid=5818 vsize=1452 CPUtime=0.29
/proc/5819/stat : 5819 (march_dl) R 5818 5818 4685 0 -1 4194304 292 0 0 0 29 0 0 0 23 0 1 0 222679508 1486848 284 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134531237 0 0 8392704 0 0 0 0 17 1 0 0
/proc/5819/statm: 363 284 74 118 0 242 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2892

[startup+0.701235 s]
/proc/loadavg: 0.99 1.02 1.31 3/64 5818
/proc/meminfo: memFree=1486832/2055920 swapFree=4183812/4192956
[pid=5818] ppid=5816 vsize=1440 CPUtime=0
/proc/5818/stat : 5818 (SATzilla2007_R) S 5816 5818 4685 0 -1 4194304 127 0 0 0 0 0 0 0 19 0 1 0 222679508 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/5818/statm: 360 110 95 260 0 84 0
[pid=5819] ppid=5818 vsize=1452 CPUtime=0.69
/proc/5819/stat : 5819 (march_dl) R 5818 5818 4685 0 -1 4194304 301 0 0 0 69 0 0 0 25 0 1 0 222679508 1486848 293 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134527778 0 0 8392704 0 0 0 0 17 1 0 0
/proc/5819/statm: 363 293 74 118 0 242 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2892

[startup+1.50131 s]
/proc/loadavg: 0.99 1.02 1.31 2/66 5820
/proc/meminfo: memFree=1485728/2055920 swapFree=4183812/4192956
[pid=5818] ppid=5816 vsize=1440 CPUtime=0
/proc/5818/stat : 5818 (SATzilla2007_R) S 5816 5818 4685 0 -1 4194304 127 0 0 0 0 0 0 0 19 0 1 0 222679508 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/5818/statm: 360 110 95 260 0 84 0
[pid=5819] ppid=5818 vsize=1452 CPUtime=1.49
/proc/5819/stat : 5819 (march_dl) R 5818 5818 4685 0 -1 4194304 309 0 0 0 149 0 0 0 25 0 1 0 222679508 1486848 301 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134527856 0 0 8392704 0 0 0 0 17 1 0 0
/proc/5819/statm: 363 301 74 118 0 242 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2892

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

[startup+1.60132 s]
/proc/loadavg: 0.99 1.02 1.31 2/66 5820
/proc/meminfo: memFree=1485728/2055920 swapFree=4183812/4192956
[pid=5818] ppid=5816 vsize=1440 CPUtime=0
/proc/5818/stat : 5818 (SATzilla2007_R) S 5816 5818 4685 0 -1 4194304 127 0 0 0 0 0 0 0 19 0 1 0 222679508 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/5818/statm: 360 110 95 260 0 84 0
[pid=5819] ppid=5818 vsize=1452 CPUtime=1.59
/proc/5819/stat : 5819 (march_dl) R 5818 5818 4685 0 -1 4194304 310 0 0 0 159 0 0 0 25 0 1 0 222679508 1486848 302 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134526917 0 0 8392704 0 0 0 0 17 1 0 0
/proc/5819/statm: 363 302 74 118 0 242 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 2892

Child status: 20
Real time (s): 1.65189
CPU time (s): 1.64875
CPU user time (s): 1.64675
CPU system time (s): 0.001999
CPU usage (%): 99.8101
Max. virtual memory (cumulated for all children) (KiB): 2892

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.64675
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 468
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= 12
involuntary context switches= 7

runsolver used 0.005999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node70 on Sun Apr 29 07:23:42 UTC 2007

IDJOB= 423986
IDBENCH= 20292
IDSOLVER= 191
FILE ID= node70/423986-1177831422

PBS_JOBID= 4718281

Free space on /tmp= 66556 MiB

SOLVER NAME= SATzilla RANDOM
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1893175053-01-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/423986-1177831422/SATzilla2007_R /tmp/evaluation/423986-1177831422/instance-423986-1177831422.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node70/watcher-423986-1177831422 -o ROOT/results/node70/solver-423986-1177831422 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/423986-1177831422/SATzilla2007_R /tmp/evaluation/423986-1177831422/instance-423986-1177831422.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  da575672f9caad385bd5edff99ee5f4d

RANDOM SEED= 592929766

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node70.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		: 3000.218
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:       1487176 kB
Buffers:         43592 kB
Cached:         444040 kB
SwapCached:       3192 kB
Active:         318452 kB
Inactive:       179896 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1487176 kB
SwapTotal:     4192956 kB
SwapFree:      4183812 kB
Dirty:            8392 kB
Writeback:           0 kB
Mapped:          16696 kB
Slab:            56404 kB
Committed_AS:  3541216 kB
PageTables:       1400 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 node70 on Sun Apr 29 07:23:44 UTC 2007