Trace number 1522663

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
NCVWr 2009-03-22SAT 51.0202 51.0414

General information on the benchmark

NameRANDOM/LARGE/3SAT/UNKNOWN/2000/
unif-k3-r4.2-v2000-c8400-S1765449180-016.cnf
MD5SUM8919b1e0a8b22ddbf62ba887cc4a9b9a
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.766883
Satisfiable
(Un)Satisfiability was proved
Number of variables2000
Number of clauses8400
Sum of the clauses size25200
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 38400
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

50.97/51.04	c try 1 flip j 18494833
50.97/51.04	c A solution is found
50.97/51.04	s SATISFIABLE
50.97/51.04	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 -239 240 241 -242 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50.97/51.04	v 0 
50.97/51.04	c Done (mycputime is 51.000 seconds)

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1522663-1238387586/watcher-1522663-1238387586 -o /tmp/evaluation-result-1522663-1238387586/solver-1522663-1238387586 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1522663-1238387586.cnf 1155888380 

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: 2.05 1.93 1.63 2/80 26925
/proc/meminfo: memFree=1430496/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=411884 CPUtime=0
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1111422502 421769216 113 1992294400 134512640 135113558 4294956208 18446744073709551615 134619510 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 102971 113 55 146 0 101846 0

[startup+0.044046 s]
/proc/loadavg: 2.05 1.93 1.63 2/80 26925
/proc/meminfo: memFree=1430496/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=0.04
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 472 0 0 0 4 0 0 0 18 0 1 0 1111422502 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531229 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 416708

[startup+0.101051 s]
/proc/loadavg: 2.05 1.93 1.63 2/80 26925
/proc/meminfo: memFree=1430496/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=0.09
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 472 0 0 0 9 0 0 0 18 0 1 0 1111422502 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531127 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 416708

[startup+0.301071 s]
/proc/loadavg: 2.05 1.93 1.63 2/80 26925
/proc/meminfo: memFree=1430496/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=0.29
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 472 0 0 0 29 0 0 0 19 0 1 0 1111422502 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531970 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 416708

[startup+0.701113 s]
/proc/loadavg: 2.05 1.93 1.63 2/80 26925
/proc/meminfo: memFree=1430496/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=0.69
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 472 0 0 0 69 0 0 0 23 0 1 0 1111422502 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531724 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 416708

[startup+1.5012 s]
/proc/loadavg: 2.05 1.93 1.63 2/81 26926
/proc/meminfo: memFree=1428696/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=1.49
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 472 0 0 0 149 0 0 0 25 0 1 0 1111422502 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134521206 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 416708

[startup+3.10136 s]
/proc/loadavg: 2.05 1.93 1.63 2/81 26926
/proc/meminfo: memFree=1428504/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=3.09
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 472 0 0 0 309 0 0 0 25 0 1 0 1111422502 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134532063 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 416708

[startup+6.30174 s]
/proc/loadavg: 1.96 1.92 1.62 2/81 26926
/proc/meminfo: memFree=1428376/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=6.29
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 472 0 0 0 629 0 0 0 25 0 1 0 1111422502 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531766 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 416708

[startup+12.7014 s]
/proc/loadavg: 1.89 1.90 1.62 2/81 26926
/proc/meminfo: memFree=1428320/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=12.69
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 472 0 0 0 1269 0 0 0 25 0 1 0 1111422502 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134533479 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 416708

[startup+25.5017 s]
/proc/loadavg: 1.69 1.86 1.61 2/81 26926
/proc/meminfo: memFree=1428320/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=25.49
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 473 0 0 0 2549 0 0 0 25 0 1 0 1111422502 426708992 457 1992294400 134512640 135113558 4294956208 18446744073709551615 134530384 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 457 58 146 0 103052 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 416708

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

[startup+38.301 s]
/proc/loadavg: 1.58 1.83 1.60 2/81 26926
/proc/meminfo: memFree=1428384/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=38.27
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 473 0 0 0 3827 0 0 0 25 0 1 0 1111422502 426708992 457 1992294400 134512640 135113558 4294956208 18446744073709551615 134531911 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 457 58 146 0 103052 0
Current children cumulated CPU time (s) 38.27
Current children cumulated vsize (KiB) 416708

[startup+44.7017 s]
/proc/loadavg: 1.49 1.80 1.60 2/81 26926
/proc/meminfo: memFree=1428384/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=44.67
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 473 0 0 0 4467 0 0 0 25 0 1 0 1111422502 426708992 457 1992294400 134512640 135113558 4294956208 18446744073709551615 134531726 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 457 58 146 0 103052 0
Current children cumulated CPU time (s) 44.67
Current children cumulated vsize (KiB) 416708

[startup+47.902 s]
/proc/loadavg: 1.49 1.80 1.60 2/81 26926
/proc/meminfo: memFree=1428384/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=47.87
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 473 0 0 0 4787 0 0 0 25 0 1 0 1111422502 426708992 457 1992294400 134512640 135113558 4294956208 18446744073709551615 134520688 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 457 58 146 0 103052 0
Current children cumulated CPU time (s) 47.87
Current children cumulated vsize (KiB) 416708

[startup+49.5062 s]
/proc/loadavg: 1.45 1.79 1.59 2/81 26926
/proc/meminfo: memFree=1428384/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=49.48
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 473 0 0 0 4948 0 0 0 25 0 1 0 1111422502 426708992 457 1992294400 134512640 135113558 4294956208 18446744073709551615 134531084 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 457 58 146 0 103052 0
Current children cumulated CPU time (s) 49.48
Current children cumulated vsize (KiB) 416708

[startup+50.3013 s]
/proc/loadavg: 1.45 1.79 1.59 2/81 26926
/proc/meminfo: memFree=1428384/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=50.27
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 473 0 0 0 5027 0 0 0 25 0 1 0 1111422502 426708992 457 1992294400 134512640 135113558 4294956208 18446744073709551615 134530256 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 457 58 146 0 103052 0
Current children cumulated CPU time (s) 50.27
Current children cumulated vsize (KiB) 416708

[startup+50.7013 s]
/proc/loadavg: 1.45 1.79 1.59 2/81 26926
/proc/meminfo: memFree=1428384/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=50.67
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 473 0 0 0 5067 0 0 0 25 0 1 0 1111422502 426708992 457 1992294400 134512640 135113558 4294956208 18446744073709551615 134532073 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 457 58 146 0 103052 0
Current children cumulated CPU time (s) 50.67
Current children cumulated vsize (KiB) 416708

[startup+50.9013 s]
/proc/loadavg: 1.45 1.79 1.59 2/81 26926
/proc/meminfo: memFree=1428384/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=50.87
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 473 0 0 0 5087 0 0 0 25 0 1 0 1111422502 426708992 457 1992294400 134512640 135113558 4294956208 18446744073709551615 134533736 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 457 58 146 0 103052 0
Current children cumulated CPU time (s) 50.87
Current children cumulated vsize (KiB) 416708

[startup+51.0014 s]
/proc/loadavg: 1.45 1.79 1.59 2/81 26926
/proc/meminfo: memFree=1428384/2055912 swapFree=4170680/4192956
[pid=26925] ppid=26923 vsize=416708 CPUtime=50.97
/proc/26925/stat : 26925 (NCVWr) R 26923 26925 26678 0 -1 4194304 473 0 0 0 5097 0 0 0 25 0 1 0 1111422502 426708992 457 1992294400 134512640 135113558 4294956208 18446744073709551615 134533962 0 0 4096 0 0 0 0 17 1 0 0
/proc/26925/statm: 104177 457 58 146 0 103052 0
Current children cumulated CPU time (s) 50.97
Current children cumulated vsize (KiB) 416708

Child status: 10
Real time (s): 51.0414
CPU time (s): 51.0202
CPU user time (s): 51.0162
CPU system time (s): 0.003999
CPU usage (%): 99.9585
Max. virtual memory (cumulated for all children) (KiB): 416708

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 51.0162
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= 488
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= 4
involuntary context switches= 108

runsolver used 0.074988 second user time and 0.167974 second system time

The end

Launcher Data 

Begin job on node78 at 2009-03-30 06:33:06
IDJOB=1522663
IDBENCH=70285
IDSOLVER=531
FILE ID=node78/1522663-1238387586
PBS_JOBID= 9061346
Free space on /tmp= 126872 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/RANDOM/LARGE/3SAT/UNKNOWN/2000/unif-k3-r4.2-v2000-c8400-S1765449180-016.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1522663-1238387586/watcher-1522663-1238387586 -o /tmp/evaluation-result-1522663-1238387586/solver-1522663-1238387586 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1522663-1238387586.cnf 1155888380

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

MD5SUM BENCH= 8919b1e0a8b22ddbf62ba887cc4a9b9a
RANDOM SEED=1155888380

node78.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:      2055912 kB
MemFree:       1430912 kB
Buffers:         84592 kB
Cached:         450708 kB
SwapCached:       7748 kB
Active:         227872 kB
Inactive:       317840 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055912 kB
LowFree:       1430912 kB
SwapTotal:     4192956 kB
SwapFree:      4170680 kB
Dirty:            4796 kB
Writeback:           0 kB
Mapped:          16076 kB
Slab:            63500 kB
Committed_AS:  2522192 kB
PageTables:       2556 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 126868 MiB
End job on node78 at 2009-03-30 06:33:57