Trace number 1738108

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
HydraSAT-Flat 2009-03-22-FlatSAT 78.5781 78.5999

General information on the benchmark

NameCRAFTED/sgi/
new-difficult-20-152-18-95.cnf
MD5SUMc56a1400f0bd9306a380dfa6653baa1d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.038993
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses15466
Sum of the clauses size31256
Maximum clause length20
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 215448
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 518

Solver Data 

78.47/78.59	
78.47/78.59	c decisions : 1949286
78.47/78.59	c conflicts : 1061051
78.47/78.59	c Memory limit 1620 MiB
78.47/78.59	s SATISFIABLE
78.47/78.59	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 -243 -244 -245 -246 -247 -248 -249 -250 -251 -252 -253 -254 255 -256 -257 -258 -259 -260 -261 -262 -263 -264 -265 -266 -267 -268 -269 -270 -271 -272 -273 -274 -275 276 -277 -278 -279 -280 -281 -282 -283 -284 -285 -286 -287 -288 -289 -290 -291 -292 -293 -294 -295 -296 297 -298 -299 -300 -301 -302 -303 -304 -305 -306 -307 -308 -309 -310 -311 -312 -313 -314 -315 -316 -317 318 -319 -320 -321 -322 -323 -324 -325 -326 -327 -328 -329 -330 -331 -332 -333 -334 -335 -336 -337 -338 339 -340 -341 -342 -343 -344 -345 -346 -347 -348 -349 -350 -351 -352 -353 -354 -355 -356 -357 -358 -359 360 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-1738108-1240835724/watcher-1738108-1240835724 -o /tmp/evaluation-result-1738108-1240835724/solver-1738108-1240835724 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hydrasat-flat HOME/instance-1738108-1240835724.cnf -rs 683848612 -co memory_limit 1800 

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: 1.98 1.46 1.24 3/64 15067
/proc/meminfo: memFree=1860200/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=1728 CPUtime=0
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 214 0 0 0 0 0 0 0 18 0 1 0 111600461 1769472 198 1992294400 134512640 135819388 4294956160 18446744073709551615 135210678 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 432 198 119 319 0 110 0

[startup+0.0184439 s]
/proc/loadavg: 1.98 1.46 1.24 3/64 15067
/proc/meminfo: memFree=1860200/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=2684 CPUtime=0.01
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 475 0 0 0 1 0 0 0 18 0 1 0 111600461 2748416 459 1992294400 134512640 135819388 4294956160 18446744073709551615 134685366 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 671 459 127 319 0 349 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2684

[startup+0.10246 s]
/proc/loadavg: 1.98 1.46 1.24 3/64 15067
/proc/meminfo: memFree=1860200/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=2896 CPUtime=0.09
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 492 0 0 0 9 0 0 0 18 0 1 0 111600461 2965504 476 1992294400 134512640 135819388 4294956160 18446744073709551615 134521356 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 724 476 128 319 0 402 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2896

[startup+0.301468 s]
/proc/loadavg: 1.98 1.46 1.24 3/64 15067
/proc/meminfo: memFree=1860200/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=3688 CPUtime=0.29
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 732 0 0 0 29 0 0 0 19 0 1 0 111600461 3776512 715 1992294400 134512640 135819388 4294956160 18446744073709551615 134599836 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 922 715 147 319 0 600 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3688

[startup+0.701503 s]
/proc/loadavg: 1.98 1.46 1.24 3/64 15067
/proc/meminfo: memFree=1860200/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=3816 CPUtime=0.69
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 764 0 0 0 69 0 0 0 22 0 1 0 111600461 3907584 747 1992294400 134512640 135819388 4294956160 18446744073709551615 134585518 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 954 747 147 319 0 632 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3816

[startup+1.50157 s]
/proc/loadavg: 1.98 1.46 1.24 2/65 15068
/proc/meminfo: memFree=1857632/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=3944 CPUtime=1.49
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 806 0 0 0 149 0 0 0 25 0 1 0 111600461 4038656 789 1992294400 134512640 135819388 4294956160 18446744073709551615 134616957 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 986 789 147 319 0 664 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3944

[startup+3.10171 s]
/proc/loadavg: 1.98 1.46 1.24 2/65 15068
/proc/meminfo: memFree=1857056/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=4340 CPUtime=3.09
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 894 0 0 0 309 0 0 0 25 0 1 0 111600461 4444160 877 1992294400 134512640 135819388 4294956160 18446744073709551615 134603056 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 1085 877 147 319 0 763 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4340

[startup+6.30199 s]
/proc/loadavg: 1.90 1.45 1.24 2/65 15068
/proc/meminfo: memFree=1856992/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=4340 CPUtime=6.29
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 899 0 0 0 629 0 0 0 25 0 1 0 111600461 4444160 882 1992294400 134512640 135819388 4294956160 18446744073709551615 134586616 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 1085 882 147 319 0 763 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4340

[startup+12.7016 s]
/proc/loadavg: 1.83 1.44 1.24 2/65 15068
/proc/meminfo: memFree=1856936/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=4340 CPUtime=12.69
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 901 0 0 0 1269 0 0 0 25 0 1 0 111600461 4444160 884 1992294400 134512640 135819388 4294956160 18446744073709551615 134617225 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 1085 884 147 319 0 763 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4340

[startup+25.5027 s]
/proc/loadavg: 1.64 1.42 1.23 2/65 15068
/proc/meminfo: memFree=1856936/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=4340 CPUtime=25.49
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 905 0 0 0 2549 0 0 0 25 0 1 0 111600461 4444160 888 1992294400 134512640 135819388 4294956160 18446744073709551615 134586922 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 1085 888 147 319 0 763 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 4340

[startup+51.1029 s]
/proc/loadavg: 1.42 1.39 1.23 2/65 15068
/proc/meminfo: memFree=1856936/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=4472 CPUtime=51.08
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 912 0 0 0 5108 0 0 0 25 0 1 0 111600461 4579328 895 1992294400 134512640 135819388 4294956160 18446744073709551615 134603177 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 1118 895 147 319 0 796 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 4472

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

[startup+63.9011 s]
/proc/loadavg: 1.33 1.37 1.22 2/65 15068
/proc/meminfo: memFree=1856936/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=4472 CPUtime=63.87
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 912 0 0 0 6387 0 0 0 25 0 1 0 111600461 4579328 895 1992294400 134512640 135819388 4294956160 18446744073709551615 134617232 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 1118 895 147 319 0 796 0
Current children cumulated CPU time (s) 63.87
Current children cumulated vsize (KiB) 4472

[startup+70.3016 s]
/proc/loadavg: 1.30 1.36 1.22 2/65 15068
/proc/meminfo: memFree=1856936/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=4472 CPUtime=70.28
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 912 0 0 0 7028 0 0 0 25 0 1 0 111600461 4579328 895 1992294400 134512640 135819388 4294956160 18446744073709551615 135226985 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 1118 895 147 319 0 796 0
Current children cumulated CPU time (s) 70.28
Current children cumulated vsize (KiB) 4472

[startup+73.5019 s]
/proc/loadavg: 1.30 1.36 1.22 2/65 15068
/proc/meminfo: memFree=1856936/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=4472 CPUtime=73.47
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 912 0 0 0 7347 0 0 0 25 0 1 0 111600461 4579328 895 1992294400 134512640 135819388 4294956160 18446744073709551615 134668168 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 1118 895 147 319 0 796 0
Current children cumulated CPU time (s) 73.47
Current children cumulated vsize (KiB) 4472

[startup+76.7022 s]
/proc/loadavg: 1.28 1.35 1.22 2/65 15068
/proc/meminfo: memFree=1856936/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=4472 CPUtime=76.67
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 915 0 0 0 7667 0 0 0 25 0 1 0 111600461 4579328 898 1992294400 134512640 135819388 4294956160 18446744073709551615 134668117 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 1118 898 147 319 0 796 0
Current children cumulated CPU time (s) 76.67
Current children cumulated vsize (KiB) 4472

[startup+77.5012 s]
/proc/loadavg: 1.28 1.35 1.22 2/65 15068
/proc/meminfo: memFree=1856936/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=4472 CPUtime=77.47
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 916 0 0 0 7747 0 0 0 25 0 1 0 111600461 4579328 899 1992294400 134512640 135819388 4294956160 18446744073709551615 134603320 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 1118 899 147 319 0 796 0
Current children cumulated CPU time (s) 77.47
Current children cumulated vsize (KiB) 4472

[startup+78.3013 s]
/proc/loadavg: 1.26 1.35 1.22 2/65 15068
/proc/meminfo: memFree=1856936/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=4472 CPUtime=78.27
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 916 0 0 0 7827 0 0 0 25 0 1 0 111600461 4579328 899 1992294400 134512640 135819388 4294956160 18446744073709551615 134616986 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 1118 899 147 319 0 796 0
Current children cumulated CPU time (s) 78.27
Current children cumulated vsize (KiB) 4472

[startup+78.5013 s]
/proc/loadavg: 1.26 1.35 1.22 2/65 15068
/proc/meminfo: memFree=1856936/2055920 swapFree=4192812/4192956
[pid=15067] ppid=15065 vsize=4472 CPUtime=78.47
/proc/15067/stat : 15067 (hydrasat-flat) R 15065 15067 14820 0 -1 4194304 916 0 0 0 7847 0 0 0 25 0 1 0 111600461 4579328 899 1992294400 134512640 135819388 4294956160 18446744073709551615 134618230 0 0 4096 1 0 0 0 17 1 0 0
/proc/15067/statm: 1118 899 147 319 0 796 0
Current children cumulated CPU time (s) 78.47
Current children cumulated vsize (KiB) 4472

Child status: 10
Real time (s): 78.5999
CPU time (s): 78.5781
CPU user time (s): 78.5711
CPU system time (s): 0.006998
CPU usage (%): 99.9722
Max. virtual memory (cumulated for all children) (KiB): 4472

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 78.5711
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 922
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= 205

runsolver used 0.077988 second user time and 0.147977 second system time

The end

Launcher Data 

Begin job on node50 at 2009-04-27 14:35:24
IDJOB=1738108
IDBENCH=71801
IDSOLVER=519
FILE ID=node50/1738108-1240835724
PBS_JOBID= 9187521
Free space on /tmp= 66536 MiB

SOLVER NAME= HydraSAT-Flat 2009-03-22-Flat
BENCH NAME= SAT09/CRAFTED/sgi/new-difficult-20-152-18-95.cnf
COMMAND LINE= DIR/hydrasat-flat BENCHNAME -rs RANDOMSEED -co memory_limit MEMLIMIT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1738108-1240835724/watcher-1738108-1240835724 -o /tmp/evaluation-result-1738108-1240835724/solver-1738108-1240835724 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hydrasat-flat HOME/instance-1738108-1240835724.cnf -rs 683848612 -co memory_limit 1800

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

MD5SUM BENCH= c56a1400f0bd9306a380dfa6653baa1d
RANDOM SEED=683848612

node50.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		: 3000.216
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		: 3000.216
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:       1860616 kB
Buffers:         19460 kB
Cached:          89128 kB
SwapCached:        144 kB
Active:          35072 kB
Inactive:        87572 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1860616 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1660 kB
Writeback:           0 kB
Mapped:          23660 kB
Slab:            58616 kB
Committed_AS:   370088 kB
PageTables:       1448 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= 66536 MiB
End job on node50 at 2009-04-27 14:36:43