Trace number 455896

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 CRAFTEDUNSAT 1.78973 1.79591

General information on the benchmark

Nameindustrial/jarvisalo/
eq.atree.braun.7.unsat.cnf
MD5SUM39c753fcd6ac15019fa3a40cd8b8f69d
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.78973
Satisfiable
(Un)Satisfiability was proved
Number of variables505
Number of clauses1696
Sum of the clauses size4422
Maximum clause length13
Minimum clause length1
Number of clauses of size 13
Number of clauses of size 2719
Number of clauses of size 3948
Number of clauses of size 410
Number of clauses of size 510
Number of clauses of size over 56

Solver Data (download as text)

1.69/1.79	c run March_dl for 5 seconds ... 
1.69/1.79	c Bin: Executing march_dl
1.69/1.79	c child exited successfully
1.69/1.79	c march_dl returned code 20.
1.69/1.79	c main():: ***                                   [ march satisfiability solver ]                                   ***
1.69/1.79	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
1.69/1.79	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
1.69/1.79	c main()::
1.69/1.79	c initFormula():: searching for DIMACS p-line....
1.69/1.79	c initFormula():: the DIMACS p-line indicates a CNF of 505 variables and 1696 clauses.
1.69/1.79	c parseCNF():: parsing....
1.69/1.79	c parseCNF():: the CNF contains 3 unary clauses.
1.69/1.79	c runParser():: parsing was successful, warming up engines...
1.69/1.79	c simplify_formula():: removed 0 tautological, 29 satisfied and 0 duplicate clauses
1.69/1.79	c preprocessing fase I completed:: there are now 502 free variables and 1667 clauses.
1.69/1.79	c find_equivalence():: found 161 3-equivalences
1.69/1.79	c find_and_remove_tautogolies():: found and removed 23 tautologies
1.69/1.79	c shorten_equivalence(): average equivalence length reduced from 5.335766 to 3.467153
1.69/1.79	c lengthWeight[ 2 ] = 3.97 : 1.00
1.69/1.79	c lengthWeight[ 3 ] = 3.38 : 0.85
1.69/1.79	c lengthWeight[ 4 ] = 2.87 : 0.72
1.69/1.79	c lengthWeight[ 5 ] = 2.44 : 0.61
1.69/1.79	c doublelook_init():: 90% succes rate goal.
1.69/1.79	c root_subsume():: 6 ternary clauses were subsumed, nrofceq = 168
1.69/1.79	c find_and_remove_tautogolies():: found and removed 7 tautologies
1.69/1.79	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 168
1.69/1.79	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 168
1.69/1.79	c lessRedundantTransformation():: CHAINPLUS defined.
1.69/1.79	c lessRedundantTransformation():: the transformation yielded 508 variables and 1514 clauses.
1.69/1.79	c transformTo3SAT():: you gave me 508 variables and 1514 clauses.
1.69/1.79	c transformTo3SAT():: by the way, the maximal clause length before transformation was 11.
1.69/1.79	c transformTo3SAT():: CHAINPLUS defined.
1.69/1.79	c transformTo3SAT():: I will add 45 variables and 135 clauses!
1.69/1.79	c transformTo3SAT():: the transformation yielded 553 variabels and 1514 clauses.
1.69/1.79	c main():: clause / variable ratio: ( 1649 / 553 ) = 2.98
1.69/1.79	c lengthWeight[ 2 ] = 3.97 : 1.00
1.69/1.79	c lengthWeight[ 3 ] = 3.38 : 0.85
1.69/1.79	c lengthWeight[ 4 ] = 2.87 : 0.72
1.69/1.79	c lengthWeight[ 5 ] = 2.44 : 0.61
1.69/1.79	c doublelook_init():: 90% succes rate goal.
1.69/1.79	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 168
1.69/1.79	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 168
1.69/1.79	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
1.69/1.79	c check_ternary_clause_density :: low
1.69/1.79	c root full lookahead
1.69/1.79	c freevars: 512, independend: 366, ternary clauses: 365 
1.69/1.79	c main():: all systems go!
1.69/1.79	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 |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************
c |****************************************************************
1.69/1.79	c
1.69/1.79	c main():: nodeCount: 4641
1.69/1.79	c main():: dead ends in main: 59
1.69/1.79	c main():: lookAheadCount: 219290
1.69/1.79	c main():: unitResolveCount: 244775
1.69/1.79	c main():: time=1.780000
1.69/1.79	c main():: necessary_assignments: 11047
1.69/1.79	c main():: bin_sat: 0, bin_unsat 0
1.69/1.79	c main():: doublelook: #: 63, succes #: 21
1.69/1.79	c main():: doublelook: succesrate: 33.333, threshold: 0.300 * nrofvars
1.69/1.79	s UNSATISFIABLE
1.69/1.79	c SATZILLA_TIME=1.780000

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/node60/watcher-455896-1178590464 -o ROOT/results/node60/solver-455896-1178590464 -C 10000 -W 15000 -M 1800 --output-limit 1,15 /tmp/evaluation/455896-1178590464/SATzilla2007_C /tmp/evaluation/455896-1178590464/instance-455896-1178590464.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 15000 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: 0.72 0.93 0.98 3/64 9640
/proc/meminfo: memFree=1481560/2055920 swapFree=4183380/4192956
[pid=9640] ppid=9638 vsize=1440 CPUtime=0
/proc/9640/stat : 9640 (SATzilla2007_C) S 9638 9640 9546 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 306956348 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/9640/statm: 360 110 95 260 0 84 0
[pid=9641] ppid=9640 vsize=764 CPUtime=0
/proc/9641/stat : 9641 (march_dl) R 9640 9640 9546 0 -1 4194304 98 0 0 0 0 0 0 0 19 0 1 0 306956348 782336 92 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 1 0 0
/proc/9641/statm: 191 95 52 118 0 70 0

[startup+0.102601 s]
/proc/loadavg: 0.72 0.93 0.98 3/64 9640
/proc/meminfo: memFree=1481560/2055920 swapFree=4183380/4192956
[pid=9640] ppid=9638 vsize=1440 CPUtime=0
/proc/9640/stat : 9640 (SATzilla2007_C) S 9638 9640 9546 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 306956348 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/9640/statm: 360 110 95 260 0 84 0
[pid=9641] ppid=9640 vsize=1304 CPUtime=0.09
/proc/9641/stat : 9641 (march_dl) R 9640 9640 9546 0 -1 4194304 278 0 0 0 9 0 0 0 19 0 1 0 306956348 1335296 270 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134587484 0 0 8392704 0 0 0 0 17 1 0 0
/proc/9641/statm: 326 270 75 118 0 205 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2744

[startup+0.201604 s]
/proc/loadavg: 0.72 0.93 0.98 3/64 9640
/proc/meminfo: memFree=1481560/2055920 swapFree=4183380/4192956
[pid=9640] ppid=9638 vsize=1440 CPUtime=0
/proc/9640/stat : 9640 (SATzilla2007_C) S 9638 9640 9546 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 306956348 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/9640/statm: 360 110 95 260 0 84 0
[pid=9641] ppid=9640 vsize=1436 CPUtime=0.19
/proc/9641/stat : 9641 (march_dl) R 9640 9640 9546 0 -1 4194304 308 0 0 0 19 0 0 0 20 0 1 0 306956348 1470464 300 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134527417 0 0 8392704 0 0 0 0 17 1 0 0
/proc/9641/statm: 359 300 75 118 0 238 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 2876

[startup+0.301614 s]
/proc/loadavg: 0.72 0.93 0.98 3/64 9640
/proc/meminfo: memFree=1481560/2055920 swapFree=4183380/4192956
[pid=9640] ppid=9638 vsize=1440 CPUtime=0
/proc/9640/stat : 9640 (SATzilla2007_C) S 9638 9640 9546 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 306956348 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/9640/statm: 360 110 95 260 0 84 0
[pid=9641] ppid=9640 vsize=1436 CPUtime=0.29
/proc/9641/stat : 9641 (march_dl) R 9640 9640 9546 0 -1 4194304 317 0 0 0 29 0 0 0 20 0 1 0 306956348 1470464 309 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134527434 0 0 8392704 0 0 0 0 17 1 0 0
/proc/9641/statm: 359 309 75 118 0 238 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2876

[startup+0.701653 s]
/proc/loadavg: 0.72 0.93 0.98 3/64 9640
/proc/meminfo: memFree=1481560/2055920 swapFree=4183380/4192956
[pid=9640] ppid=9638 vsize=1440 CPUtime=0
/proc/9640/stat : 9640 (SATzilla2007_C) S 9638 9640 9546 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 306956348 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/9640/statm: 360 110 95 260 0 84 0
[pid=9641] ppid=9640 vsize=1568 CPUtime=0.69
/proc/9641/stat : 9641 (march_dl) R 9640 9640 9546 0 -1 4194304 333 0 0 0 69 0 0 0 24 0 1 0 306956348 1605632 325 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134528156 0 0 8392704 0 0 0 0 17 1 0 0
/proc/9641/statm: 392 325 75 118 0 271 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3008

[startup+1.50173 s]
/proc/loadavg: 0.74 0.94 0.98 2/66 9642
/proc/meminfo: memFree=1480200/2055920 swapFree=4183380/4192956
[pid=9640] ppid=9638 vsize=1440 CPUtime=0
/proc/9640/stat : 9640 (SATzilla2007_C) S 9638 9640 9546 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 306956348 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/9640/statm: 360 110 95 260 0 84 0
[pid=9641] ppid=9640 vsize=1568 CPUtime=1.49
/proc/9641/stat : 9641 (march_dl) R 9640 9640 9546 0 -1 4194304 350 0 0 0 149 0 0 0 25 0 1 0 306956348 1605632 342 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134533165 0 0 8392704 0 0 0 0 17 1 0 0
/proc/9641/statm: 392 342 75 118 0 271 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3008

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

[startup+1.60174 s]
/proc/loadavg: 0.74 0.94 0.98 2/66 9642
/proc/meminfo: memFree=1480200/2055920 swapFree=4183380/4192956
[pid=9640] ppid=9638 vsize=1440 CPUtime=0
/proc/9640/stat : 9640 (SATzilla2007_C) S 9638 9640 9546 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 306956348 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/9640/statm: 360 110 95 260 0 84 0
[pid=9641] ppid=9640 vsize=1568 CPUtime=1.59
/proc/9641/stat : 9641 (march_dl) R 9640 9640 9546 0 -1 4194304 351 0 0 0 159 0 0 0 25 0 1 0 306956348 1605632 343 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134567915 0 0 8392704 0 0 0 0 17 1 0 0
/proc/9641/statm: 392 343 75 118 0 271 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 3008

[startup+1.70175 s]
/proc/loadavg: 0.74 0.94 0.98 2/66 9642
/proc/meminfo: memFree=1480200/2055920 swapFree=4183380/4192956
[pid=9640] ppid=9638 vsize=1440 CPUtime=0
/proc/9640/stat : 9640 (SATzilla2007_C) S 9638 9640 9546 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 306956348 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/9640/statm: 360 110 95 260 0 84 0
[pid=9641] ppid=9640 vsize=1568 CPUtime=1.69
/proc/9641/stat : 9641 (march_dl) R 9640 9640 9546 0 -1 4194304 352 0 0 0 169 0 0 0 25 0 1 0 306956348 1605632 344 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134527814 0 0 8392704 0 0 0 0 17 1 0 0
/proc/9641/statm: 392 344 75 118 0 271 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 3008

Child status: 20
Real time (s): 1.79591
CPU time (s): 1.78973
CPU user time (s): 1.78773
CPU system time (s): 0.001999
CPU usage (%): 99.6557
Max. virtual memory (cumulated for all children) (KiB): 3008

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.78773
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= 510
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= 13
involuntary context switches= 6

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node60 on Tue May  8 02:14:24 UTC 2007

IDJOB= 455896
IDBENCH= 20469
IDSOLVER= 179
FILE ID= node60/455896-1178590464

PBS_JOBID= 5217958

Free space on /tmp= 66556 MiB

SOLVER NAME= SATzilla CRAFTED
BENCH NAME= HOME/pub/bench/SAT07/industrial/jarvisalo/eq.atree.braun.7.unsat.cnf
COMMAND LINE= /tmp/evaluation/455896-1178590464/SATzilla2007_C /tmp/evaluation/455896-1178590464/instance-455896-1178590464.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-455896-1178590464 -o ROOT/results/node60/solver-455896-1178590464 -C 10000 -W 15000 -M 1800 --output-limit 1,15  /tmp/evaluation/455896-1178590464/SATzilla2007_C /tmp/evaluation/455896-1178590464/instance-455896-1178590464.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  39c753fcd6ac15019fa3a40cd8b8f69d

RANDOM SEED= 973208857

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB

Linux node60.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		: 3000.214
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		: 3000.214
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:       1482032 kB
Buffers:         33036 kB
Cached:         417448 kB
SwapCached:       3620 kB
Active:         149988 kB
Inactive:       310088 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1482032 kB
SwapTotal:     4192956 kB
SwapFree:      4183380 kB
Dirty:            8688 kB
Writeback:           0 kB
Mapped:          15596 kB
Slab:            99792 kB
Committed_AS:  5298360 kB
PageTables:       1464 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 node60 on Tue May  8 02:14:26 UTC 2007