Trace number 1732462

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
march_hi hiSAT 8.40172 8.40451

General information on the benchmark

NameCRAFTED/sgen/sat/
sgen1-sat-160-100.cnf
MD5SUMf74d6f760fed9ca1e1d4158014482021
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.185971
Satisfiable
(Un)Satisfiability was proved
Number of variables160
Number of clauses384
Sum of the clauses size960
Maximum clause length5
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2320
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 564
Number of clauses of size over 50

Solver Data 

0.00/0.00	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.00	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.00	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.00	c main()::
0.00/0.00	c initFormula():: searching for DIMACS p-line....
0.00/0.00	c initFormula():: the DIMACS p-line indicates a CNF of 160 variables and 384 clauses.
0.00/0.00	c parseCNF():: parsing....
0.00/0.00	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.00	c runParser():: parsing was successful, warming up engines...
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c preprocessing fase I completed:: there are now 160 free variables and 384 clauses.
0.00/0.00	c stat :: sign balance is biased by 0.497
0.00/0.00	c using k-SAT heuristics (size based diff)
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c main():: clause / variable ratio: ( 384 / 160 ) = 2.40
0.00/0.00	c longest clause has size 5
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c number of free variables = 160
0.00/0.00	c dynamic_preselect_setsize :: off
0.00/0.00	c main():: all systems go!
0.00/0.00	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/14) NodeCount: 134
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/14) NodeCount: 1524
0.09/0.11	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 |****************************************************************| ( 2/14) NodeCount: 11227
0.69/0.78	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 |****************************************************************| ( 3/14) NodeCount: 42634
2.89/2.93	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 |****************************************************************| ( 4/14) NodeCount: 118031
7.99/8.06	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
8.39/8.40	c |11001100000100.000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
8.39/8.40	
c |************
8.39/8.40	c
8.39/8.40	c main():: nodeCount: 122855
8.39/8.40	c main():: dead ends in main: 14331
8.39/8.40	c main():: lookAheadCount: 2787036
8.39/8.40	c main():: unitResolveCount: 1188237
8.39/8.40	c main():: time=8.390000
8.39/8.40	c main():: necessary_assignments: 23823
8.39/8.40	c main():: bin_sat: 0, bin_unsat 0
8.39/8.40	c main():: doublelook: #: 214943, succes #: 132821
8.39/8.40	c main():: doublelook: overall 8.123 of all possible doublelooks executed
8.39/8.40	c main():: doublelook: succesrate: 61.794, average DL_trigger: 5.656
8.39/8.40	c main():: SOLUTION VERIFIED :-)
8.39/8.40	s SATISFIABLE
8.39/8.40	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 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1732462-1240780940/watcher-1732462-1240780940 -o /tmp/evaluation-result-1732462-1240780940/solver-1732462-1240780940 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1732462-1240780940.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): 1800 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: 1.99 1.85 1.45 3/64 23960
/proc/meminfo: memFree=1823808/2055920 swapFree=4181212/4192956
[pid=23960] ppid=23958 vsize=1036 CPUtime=0
/proc/23960/stat : 23960 (march_hi) R 23958 23960 23594 0 -1 4194304 150 0 0 0 0 0 0 0 18 0 1 0 106121535 1060864 133 1992294400 134512640 135197378 4294956224 18446744073709551615 134539253 0 0 4096 0 0 0 0 17 1 0 0
/proc/23960/statm: 259 133 87 167 0 90 0

[startup+0.072119 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 23960
/proc/meminfo: memFree=1823808/2055920 swapFree=4181212/4192956
[pid=23960] ppid=23958 vsize=1036 CPUtime=0.07
/proc/23960/stat : 23960 (march_hi) R 23958 23960 23594 0 -1 4194304 162 0 0 0 7 0 0 0 18 0 1 0 106121535 1060864 145 1992294400 134512640 135197378 4294956224 18446744073709551615 134570822 0 0 4096 0 0 0 0 17 1 0 0
/proc/23960/statm: 259 145 90 167 0 90 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1036

[startup+0.101122 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 23960
/proc/meminfo: memFree=1823808/2055920 swapFree=4181212/4192956
[pid=23960] ppid=23958 vsize=1036 CPUtime=0.09
/proc/23960/stat : 23960 (march_hi) R 23958 23960 23594 0 -1 4194304 164 0 0 0 9 0 0 0 18 0 1 0 106121535 1060864 147 1992294400 134512640 135197378 4294956224 18446744073709551615 134618128 0 0 4096 0 0 0 0 17 1 0 0
/proc/23960/statm: 259 147 90 167 0 90 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1036

[startup+0.30114 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 23960
/proc/meminfo: memFree=1823808/2055920 swapFree=4181212/4192956
[pid=23960] ppid=23958 vsize=1036 CPUtime=0.29
/proc/23960/stat : 23960 (march_hi) R 23958 23960 23594 0 -1 4194304 165 0 0 0 29 0 0 0 19 0 1 0 106121535 1060864 148 1992294400 134512640 135197378 4294956224 18446744073709551615 134541581 0 0 4096 0 0 0 0 17 1 0 0
/proc/23960/statm: 259 148 90 167 0 90 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1036

[startup+0.701176 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 23960
/proc/meminfo: memFree=1823808/2055920 swapFree=4181212/4192956
[pid=23960] ppid=23958 vsize=1180 CPUtime=0.69
/proc/23960/stat : 23960 (march_hi) R 23958 23960 23594 0 -1 4194304 170 0 0 0 69 0 0 0 22 0 1 0 106121535 1208320 153 1992294400 134512640 135197378 4294956224 18446744073709551615 134597405 0 0 4096 0 0 0 0 17 1 0 0
/proc/23960/statm: 295 153 90 167 0 126 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1180

[startup+1.50125 s]
/proc/loadavg: 1.91 1.83 1.45 2/65 23961
/proc/meminfo: memFree=1823480/2055920 swapFree=4181212/4192956
[pid=23960] ppid=23958 vsize=1180 CPUtime=1.49
/proc/23960/stat : 23960 (march_hi) R 23958 23960 23594 0 -1 4194304 183 0 0 0 149 0 0 0 25 0 1 0 106121535 1208320 166 1992294400 134512640 135197378 4294956224 18446744073709551615 134572740 0 0 4096 0 0 0 0 17 1 0 0
/proc/23960/statm: 295 166 90 167 0 126 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1180

[startup+3.10139 s]
/proc/loadavg: 1.91 1.83 1.45 2/65 23961
/proc/meminfo: memFree=1823280/2055920 swapFree=4181212/4192956
[pid=23960] ppid=23958 vsize=1180 CPUtime=3.09
/proc/23960/stat : 23960 (march_hi) R 23958 23960 23594 0 -1 4194304 188 0 0 0 309 0 0 0 25 0 1 0 106121535 1208320 171 1992294400 134512640 135197378 4294956224 18446744073709551615 134550993 0 0 4096 0 0 0 0 17 1 0 0
/proc/23960/statm: 295 171 90 167 0 126 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1180

[startup+6.30168 s]
/proc/loadavg: 1.91 1.83 1.45 2/65 23961
/proc/meminfo: memFree=1823088/2055920 swapFree=4181212/4192956
[pid=23960] ppid=23958 vsize=1316 CPUtime=6.29
/proc/23960/stat : 23960 (march_hi) R 23958 23960 23594 0 -1 4194304 222 0 0 0 629 0 0 0 25 0 1 0 106121535 1347584 205 1992294400 134512640 135197378 4294956224 18446744073709551615 134603831 0 0 4096 0 0 0 0 17 1 0 0
/proc/23960/statm: 329 205 90 167 0 160 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1316

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

[startup+7.10175 s]
/proc/loadavg: 1.84 1.82 1.44 2/65 23961
/proc/meminfo: memFree=1823096/2055920 swapFree=4181212/4192956
[pid=23960] ppid=23958 vsize=1316 CPUtime=7.09
/proc/23960/stat : 23960 (march_hi) R 23958 23960 23594 0 -1 4194304 223 0 0 0 709 0 0 0 25 0 1 0 106121535 1347584 206 1992294400 134512640 135197378 4294956224 18446744073709551615 134618774 0 0 4096 0 0 0 0 17 1 0 0
/proc/23960/statm: 329 206 90 167 0 160 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 1316

[startup+7.90182 s]
/proc/loadavg: 1.84 1.82 1.44 2/65 23961
/proc/meminfo: memFree=1823096/2055920 swapFree=4181212/4192956
[pid=23960] ppid=23958 vsize=1316 CPUtime=7.89
/proc/23960/stat : 23960 (march_hi) R 23958 23960 23594 0 -1 4194304 226 0 0 0 789 0 0 0 25 0 1 0 106121535 1347584 209 1992294400 134512640 135197378 4294956224 18446744073709551615 134612236 0 0 4096 0 0 0 0 17 1 0 0
/proc/23960/statm: 329 209 90 167 0 160 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 1316

[startup+8.30186 s]
/proc/loadavg: 1.84 1.82 1.44 2/65 23961
/proc/meminfo: memFree=1823096/2055920 swapFree=4181212/4192956
[pid=23960] ppid=23958 vsize=1316 CPUtime=8.29
/proc/23960/stat : 23960 (march_hi) R 23958 23960 23594 0 -1 4194304 228 0 0 0 829 0 0 0 25 0 1 0 106121535 1347584 211 1992294400 134512640 135197378 4294956224 18446744073709551615 134550709 0 0 4096 0 0 0 0 17 1 0 0
/proc/23960/statm: 329 211 90 167 0 160 0
Current children cumulated CPU time (s) 8.29
Current children cumulated vsize (KiB) 1316

[startup+8.40187 s]
/proc/loadavg: 1.84 1.82 1.44 2/65 23961
/proc/meminfo: memFree=1823096/2055920 swapFree=4181212/4192956
[pid=23960] ppid=23958 vsize=1316 CPUtime=8.39
/proc/23960/stat : 23960 (march_hi) R 23958 23960 23594 0 -1 4194304 228 0 0 0 839 0 0 0 25 0 1 0 106121535 1347584 211 1992294400 134512640 135197378 4294956224 18446744073709551615 134603821 0 0 4096 0 0 0 0 17 1 0 0
/proc/23960/statm: 329 211 90 167 0 160 0
Current children cumulated CPU time (s) 8.39
Current children cumulated vsize (KiB) 1316

Child status: 10
Real time (s): 8.40451
CPU time (s): 8.40172
CPU user time (s): 8.39772
CPU system time (s): 0.003999
CPU usage (%): 99.9668
Max. virtual memory (cumulated for all children) (KiB): 1316

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.39772
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 233
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= 2
involuntary context switches= 16

runsolver used 0.010998 second user time and 0.027995 second system time

The end

Launcher Data 

Begin job on node51 at 2009-04-26 23:22:20
IDJOB=1732462
IDBENCH=71118
IDSOLVER=521
FILE ID=node51/1732462-1240780940
PBS_JOBID= 9187222
Free space on /tmp= 66384 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/CRAFTED/sgen/sat/sgen1-sat-160-100.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1732462-1240780940/watcher-1732462-1240780940 -o /tmp/evaluation-result-1732462-1240780940/solver-1732462-1240780940 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1732462-1240780940.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= f74d6f760fed9ca1e1d4158014482021
RANDOM SEED=677275229

node51.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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:       1824288 kB
Buffers:         30984 kB
Cached:         126084 kB
SwapCached:       5928 kB
Active:          30772 kB
Inactive:       134728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1824288 kB
SwapTotal:     4192956 kB
SwapFree:      4181212 kB
Dirty:             776 kB
Writeback:           0 kB
Mapped:          13740 kB
Slab:            52160 kB
Committed_AS:   294876 kB
PageTables:       1392 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= 66384 MiB
End job on node51 at 2009-04-26 23:22:29