Trace number 316289

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 1.37979 1.38193

General information on the benchmark

Namecrafted/spence/
medium/s57-100.cnf
MD5SUM4dc4c11d420a4a03c2a3fdf77861be5d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.703892
Satisfiable
(Un)Satisfiability was proved
Number of variables57
Number of clauses124
Sum of the clauses size372
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3124
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

1.29/1.38	c run March_dl for 5 seconds ... 
1.29/1.38	c Bin: Executing march_dl
1.29/1.38	c child exited successfully
1.29/1.38	c march_dl returned code 20.
1.29/1.38	c main():: ***                                   [ march satisfiability solver ]                                   ***
1.29/1.38	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
1.29/1.38	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
1.29/1.38	c main()::
1.29/1.38	c initFormula():: searching for DIMACS p-line....
1.29/1.38	c initFormula():: the DIMACS p-line indicates a CNF of 57 variables and 124 clauses.
1.29/1.38	c parseCNF():: parsing....
1.29/1.38	c parseCNF():: the CNF contains 0 unary clauses.
1.29/1.38	c runParser():: parsing was successful, warming up engines...
1.29/1.38	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
1.29/1.38	c preprocessing fase I completed:: there are now 57 free variables and 124 clauses.
1.29/1.38	c shorten_equivalence(): average equivalence length reduced from nan to nan
1.29/1.38	c doublelook_init():: 90% succes rate goal.
1.29/1.38	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
1.29/1.38	c lessRedundantTransformation():: nothing to be done.
1.29/1.38	c transformTo3SAT():: you gave me 57 variables and 124 clauses.
1.29/1.38	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
1.29/1.38	c transformTo3SAT():: CHAINPLUS defined.
1.29/1.38	c transformTo3SAT():: I will add 0 variables and 0 clauses!
1.29/1.38	c transformTo3SAT():: the transformation yielded 57 variabels and 124 clauses.
1.29/1.38	c main():: clause / variable ratio: ( 124 / 57 ) = 2.18
1.29/1.38	c doublelook_init():: 90% succes rate goal.
1.29/1.38	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
1.29/1.38	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
1.29/1.38	c check_ternary_clause_density :: low
1.29/1.38	c root full lookahead
1.29/1.38	c freevars: 57, independend: 57, ternary clauses: 124 
1.29/1.38	c main():: all systems go!
1.29/1.38	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 |********************************************************
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c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************
c |****************************************************************
1.29/1.38	c
1.29/1.38	c main():: nodeCount: 48606
1.29/1.38	c main():: dead ends in main: 261
1.29/1.38	c main():: lookAheadCount: 1714505
1.29/1.38	c main():: unitResolveCount: 163184
1.29/1.38	c main():: time=1.370000
1.29/1.38	c main():: necessary_assignments: 585
1.29/1.38	c main():: bin_sat: 0, bin_unsat 0
1.29/1.38	c main():: doublelook: #: 282, succes #: 215
1.29/1.38	c main():: doublelook: succesrate: 76.241, threshold: 0.340 * nrofvars
1.29/1.38	s UNSATISFIABLE
1.29/1.38	c SATZILLA_TIME=1.370000

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node3/watcher-316289-1172666736 -o ROOT/results/node3/solver-316289-1172666736 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316289-1172666736/SATzilla2007_R /tmp/evaluation/316289-1172666736/instance-316289-1172666736.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): 2400 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: 0.91 0.97 0.98 3/77 10746
/proc/meminfo: memFree=1092456/2055920 swapFree=4191880/4192956
[pid=10746] ppid=10744 vsize=1440 CPUtime=0
/proc/10746/stat : 10746 (SATzilla2007_R) S 10744 10746 10423 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 286628523 1474560 110 18446744073709551615 134512640 135579813 4294956608 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/10746/statm: 360 110 95 260 0 84 0
[pid=10747] ppid=10746 vsize=632 CPUtime=0
/proc/10747/stat : 10747 (march_dl) R 10746 10746 10423 0 -1 4194304 101 0 0 0 0 0 0 0 20 0 1 0 286628523 647168 95 18446744073709551615 134512640 134996440 4294956640 18446744073709551615 134533056 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10747/statm: 158 95 73 118 0 37 0

[startup+0.0326201 s]
/proc/loadavg: 0.91 0.97 0.98 3/77 10746
/proc/meminfo: memFree=1092456/2055920 swapFree=4191880/4192956
[pid=10746] ppid=10744 vsize=1440 CPUtime=0
/proc/10746/stat : 10746 (SATzilla2007_R) S 10744 10746 10423 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 286628523 1474560 110 18446744073709551615 134512640 135579813 4294956608 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/10746/statm: 360 110 95 260 0 84 0
[pid=10747] ppid=10746 vsize=632 CPUtime=0.03
/proc/10747/stat : 10747 (march_dl) R 10746 10746 10423 0 -1 4194304 103 0 0 0 3 0 0 0 20 0 1 0 286628523 647168 97 18446744073709551615 134512640 134996440 4294956640 18446744073709551615 134587919 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10747/statm: 158 97 73 118 0 37 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2072

[startup+0.101626 s]
/proc/loadavg: 0.91 0.97 0.98 3/77 10746
/proc/meminfo: memFree=1092456/2055920 swapFree=4191880/4192956
[pid=10746] ppid=10744 vsize=1440 CPUtime=0
/proc/10746/stat : 10746 (SATzilla2007_R) S 10744 10746 10423 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 286628523 1474560 110 18446744073709551615 134512640 135579813 4294956608 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/10746/statm: 360 110 95 260 0 84 0
[pid=10747] ppid=10746 vsize=632 CPUtime=0.09
/proc/10747/stat : 10747 (march_dl) R 10746 10746 10423 0 -1 4194304 105 0 0 0 9 0 0 0 20 0 1 0 286628523 647168 99 18446744073709551615 134512640 134996440 4294956640 18446744073709551615 134537270 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10747/statm: 158 99 73 118 0 37 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2072

[startup+0.301642 s]
/proc/loadavg: 0.91 0.97 0.98 3/77 10746
/proc/meminfo: memFree=1092456/2055920 swapFree=4191880/4192956
[pid=10746] ppid=10744 vsize=1440 CPUtime=0
/proc/10746/stat : 10746 (SATzilla2007_R) S 10744 10746 10423 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 286628523 1474560 110 18446744073709551615 134512640 135579813 4294956608 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/10746/statm: 360 110 95 260 0 84 0
[pid=10747] ppid=10746 vsize=632 CPUtime=0.29
/proc/10747/stat : 10747 (march_dl) R 10746 10746 10423 0 -1 4194304 106 0 0 0 29 0 0 0 20 0 1 0 286628523 647168 100 18446744073709551615 134512640 134996440 4294956640 18446744073709551615 134528172 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10747/statm: 158 100 73 118 0 37 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2072

[startup+0.701675 s]
/proc/loadavg: 0.91 0.97 0.98 3/77 10746
/proc/meminfo: memFree=1092456/2055920 swapFree=4191880/4192956
[pid=10746] ppid=10744 vsize=1440 CPUtime=0
/proc/10746/stat : 10746 (SATzilla2007_R) S 10744 10746 10423 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 286628523 1474560 110 18446744073709551615 134512640 135579813 4294956608 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/10746/statm: 360 110 95 260 0 84 0
[pid=10747] ppid=10746 vsize=632 CPUtime=0.69
/proc/10747/stat : 10747 (march_dl) R 10746 10746 10423 0 -1 4194304 106 0 0 0 69 0 0 0 24 0 1 0 286628523 647168 100 18446744073709551615 134512640 134996440 4294956640 18446744073709551615 134528886 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10747/statm: 158 100 73 118 0 37 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2072

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

[startup+1.10571 s]
/proc/loadavg: 0.91 0.97 0.98 2/79 10748
/proc/meminfo: memFree=1092184/2055920 swapFree=4191880/4192956
[pid=10746] ppid=10744 vsize=1440 CPUtime=0
/proc/10746/stat : 10746 (SATzilla2007_R) S 10744 10746 10423 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 286628523 1474560 110 18446744073709551615 134512640 135579813 4294956608 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/10746/statm: 360 110 95 260 0 84 0
[pid=10747] ppid=10746 vsize=632 CPUtime=1.1
/proc/10747/stat : 10747 (march_dl) R 10746 10746 10423 0 -1 4194304 107 0 0 0 110 0 0 0 25 0 1 0 286628523 647168 101 18446744073709551615 134512640 134996440 4294956640 18446744073709551615 134527899 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10747/statm: 158 101 73 118 0 37 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 2072

[startup+1.30172 s]
/proc/loadavg: 0.91 0.97 0.98 2/79 10748
/proc/meminfo: memFree=1092184/2055920 swapFree=4191880/4192956
[pid=10746] ppid=10744 vsize=1440 CPUtime=0
/proc/10746/stat : 10746 (SATzilla2007_R) S 10744 10746 10423 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 286628523 1474560 110 18446744073709551615 134512640 135579813 4294956608 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/10746/statm: 360 110 95 260 0 84 0
[pid=10747] ppid=10746 vsize=632 CPUtime=1.29
/proc/10747/stat : 10747 (march_dl) R 10746 10746 10423 0 -1 4194304 107 0 0 0 129 0 0 0 25 0 1 0 286628523 647168 101 18446744073709551615 134512640 134996440 4294956640 18446744073709551615 134527899 0 0 8392704 0 0 0 0 17 1 0 0
/proc/10747/statm: 158 101 73 118 0 37 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 2072

Child status: 20
Real time (s): 1.38193
CPU time (s): 1.37979
CPU user time (s): 1.37879
CPU system time (s): 0.000999
CPU usage (%): 99.845
Max. virtual memory (cumulated for all children) (KiB): 2072

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.37879
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 266
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= 14
involuntary context switches= 3

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Wed Feb 28 12:45:37 UTC 2007

IDJOB= 316289
IDBENCH= 20437
IDSOLVER= 134
FILE ID= node3/316289-1172666736

PBS_JOBID= 3980963

Free space on /tmp= 66528 MiB

SOLVER NAME= SATzilla RANDOM
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s57-100.cnf
COMMAND LINE= /tmp/evaluation/316289-1172666736/SATzilla2007_R /tmp/evaluation/316289-1172666736/instance-316289-1172666736.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-316289-1172666736 -o ROOT/results/node3/solver-316289-1172666736 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316289-1172666736/SATzilla2007_R /tmp/evaluation/316289-1172666736/instance-316289-1172666736.cnf            

META MD5SUM SOLVER= 44dcaa7dbf032757655ae5e30ee65a10
MD5SUM BENCH=  4dc4c11d420a4a03c2a3fdf77861be5d

RANDOM SEED= 149511727

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.241
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		: 3000.241
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:       1092864 kB
Buffers:         45740 kB
Cached:         793408 kB
SwapCached:        448 kB
Active:         299828 kB
Inactive:       593380 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1092864 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            8508 kB
Writeback:           0 kB
Mapped:          64016 kB
Slab:            55532 kB
Committed_AS:  1270188 kB
PageTables:       1656 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= 66528 MiB

End job on node3 on Wed Feb 28 12:45:38 UTC 2007