Trace number 370159

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 CRAFTEDSAT 0.013997 0.0149961

General information on the benchmark

Namecrafted/Medium/contest05/jarvisalo/
mod2-rand3bip-sat-240-3.sat05-2205.reshuffled-07.cnf
MD5SUMfca12eef85528ed5b92dca0939473545
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.013997
Satisfiable
(Un)Satisfiability was proved
Number of variables240
Number of clauses960
Sum of the clauses size2880
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3960
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.01	c run March_dl for 5 seconds ... 
0.00/0.01	c Bin: Executing march_dl
0.00/0.01	c child exited successfully
0.00/0.01	c march_dl returned code 10.
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 240 variables and 960 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 240 free variables and 960 clauses.
0.00/0.01	c find_equivalence():: found 240 3-equivalences
0.00/0.01	c find_and_remove_tautogolies():: found and removed 3 tautologies
0.00/0.01	c find_and_remove_tautogolies():: found and removed 1 tautologies
0.00/0.01	c find_and_remove_tautogolies():: found and removed 132 tautologies
0.00/0.01	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.01	c doublelook_init():: 90% succes rate goal.
0.00/0.01	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 240
0.00/0.01	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 240
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 240 variables and 0 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 0.
0.00/0.01	c transformTo3SAT():: CHAINPLUS defined.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 240 variabels and 0 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 0 / 240 ) = 0.00
0.00/0.01	c doublelook_init():: 90% succes rate goal.
0.00/0.01	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 240
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c check_ternary_clause_density :: high
0.00/0.01	c root full lookahead
0.00/0.01	c freevars: 101, independend: 0, ternary clauses: 0 
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |
0.00/0.01	c
0.00/0.01	c main():: nodeCount: 1
0.00/0.01	c main():: dead ends in main: 0
0.00/0.01	c main():: lookAheadCount: 0
0.00/0.01	c main():: unitResolveCount: 237
0.00/0.01	c main():: time=0.010000
0.00/0.01	c main():: necessary_assignments: 0
0.00/0.01	c main():: bin_sat: 0, bin_unsat 0
0.00/0.01	c main():: doublelook: #: 0, succes #: 0
0.00/0.01	c main():: doublelook: succesrate: nan, threshold: nan * nrofvars
0.00/0.01	c main():: SOLUTION VERIFIED :-)
0.00/0.01	s SATISFIABLE
0.00/0.01	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 -46 47 48 49 50 51 52 -53 54 55 -56 -57 -58 59 -60 61 62 -63 64 -65 -66 67 68 69 -70 71 -72 -73 74 -75 -76 77 -78 79 -80 81 -82 -83 -84 -85 86 -87 88 89 90 91 92 -93 -94 -95 -96 -97 98 99 -100 -101 -102 -103 104 105 106 107 -108 -109 -110 111 112 -113 114 -115 116 -117 -118 119 -120 121 -122 -123 -124 -125 -126 -127 128 -129 -130 131 -132 133 134 135 -136 137 138 139 140 141 -142 -143 -144 145 -146 -147 -148 149 150 151 152 -153 -154 155 156 157 158 159 160 -161 162 163 -164 -165 166 167 168 169 -170 -171 -172 -173 174 -175 -176 -177 -178 179 -180 181 -182 -183 184 -185 -186 -187 188 189 190 191 192 -193 -194 195 -196 197 -198 199 -200 201 202 203 204 -205 -206 207 -208 -209 -210 211 212 213 214 215 216 -217 -218 -219 -220 221 -222 -223 -224 225 226 -227 228 -229 -230 231 232 233 -234 -235 -236 -237 -238 239 -240 0
0.00/0.01	c SATZILLA_TIME=0.010000

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/node13/watcher-370159-1177552131 -o ROOT/results/node13/solver-370159-1177552131 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370159-1177552131/SATzilla2007_C /tmp/evaluation/370159-1177552131/instance-370159-1177552131.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: 0.84 0.87 0.88 3/77 8369
/proc/meminfo: memFree=1561472/2055920 swapFree=4159400/4192956
[pid=8369] ppid=8367 vsize=1440 CPUtime=0
/proc/8369/stat : 8369 (SATzilla2007_C) R 8367 8369 7237 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 203130968 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216547 0 0 4096 0 0 0 0 17 1 0 0
/proc/8369/statm: 360 110 95 260 0 84 0
[pid=8370] ppid=8369 vsize=640 CPUtime=0
/proc/8370/stat : 8370 (march_dl) R 8369 8369 7237 0 -1 4194304 101 0 0 0 0 0 0 0 18 0 1 0 203130969 655360 93 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134649583 0 0 8392704 0 0 0 0 17 1 0 0
/proc/8370/statm: 160 93 57 118 0 39 0

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

Child status: 10
Real time (s): 0.0149961
CPU time (s): 0.013997
CPU user time (s): 0.011998
CPU system time (s): 0.001999
CPU usage (%): 93.3379
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.011998
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= 319
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= 1

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node13 on Thu Apr 26 01:48:51 UTC 2007

IDJOB= 370159
IDBENCH= 24611
IDSOLVER= 179
FILE ID= node13/370159-1177552131

PBS_JOBID= 4696621

Free space on /tmp= 66372 MiB

SOLVER NAME= SATzilla CRAFTED
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/jarvisalo/mod2-rand3bip-sat-240-3.sat05-2205.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/370159-1177552131/SATzilla2007_C /tmp/evaluation/370159-1177552131/instance-370159-1177552131.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-370159-1177552131 -o ROOT/results/node13/solver-370159-1177552131 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370159-1177552131/SATzilla2007_C /tmp/evaluation/370159-1177552131/instance-370159-1177552131.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  fca12eef85528ed5b92dca0939473545

RANDOM SEED= 614529686

TIME LIMIT= 5000 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		: 3000.259
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		: 3000.259
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:       1561880 kB
Buffers:         40716 kB
Cached:         332360 kB
SwapCached:      12688 kB
Active:         295680 kB
Inactive:       138188 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1561880 kB
SwapTotal:     4192956 kB
SwapFree:      4159400 kB
Dirty:            8496 kB
Writeback:           0 kB
Mapped:          67844 kB
Slab:            45516 kB
Committed_AS:  6927256 kB
PageTables:       1960 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= 66372 MiB

End job on node13 on Thu Apr 26 01:48:52 UTC 2007