Trace number 456122

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
picosat 535SAT 13.7579 13.7629

General information on the benchmark

Namecrafted/Medium/contest05/jarvisalo/
mod2-rand3bip-sat-210-2.sat05-2159.reshuffled-07.cnf
MD5SUMf34a97e9100b15a8025a13df7cb62499
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008997
Satisfiable
(Un)Satisfiability was proved
Number of variables210
Number of clauses840
Sum of the clauses size2520
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3840
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

13.68/13.76	s SATISFIABLE
13.68/13.76	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
13.68/13.76	v 27 -28 -29 30 31 -32 33 34 -35 -36 37 38 39 40 41 42 43 -44 45 46 47 -48 49
13.68/13.76	v -50 51 -52 53 -54 -55 56 57 -58 -59 60 61 -62 63 64 -65 66 -67 68 69 70 71 72
13.68/13.76	v 73 74 -75 76 77 78 -79 80 81 82 -83 -84 85 -86 -87 88 89 -90 91 -92 93 -94
13.68/13.76	v -95 -96 -97 98 99 -100 -101 -102 103 -104 -105 -106 107 -108 -109 -110 111
13.68/13.76	v 112 113 -114 115 116 -117 -118 -119 120 -121 -122 123 124 -125 -126 127 128
13.68/13.76	v 129 -130 -131 -132 -133 -134 135 -136 137 138 139 -140 -141 -142 143 144 145
13.68/13.76	v 146 -147 -148 149 150 -151 -152 -153 -154 155 156 157 -158 -159 160 161 162
13.68/13.76	v -163 164 -165 166 167 -168 -169 -170 -171 172 173 174 175 176 177 178 179
13.68/13.76	v -180 181 -182 -183 -184 -185 -186 187 188 189 190 -191 192 193 -194 195 196
13.68/13.76	v 197 -198 199 -200 201 -202 -203 -204 -205 -206 -207 208 -209 210 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node48/watcher-456122-1178324692 -o ROOT/results/node48/solver-456122-1178324692 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/456122-1178324692/picosat /tmp/evaluation/456122-1178324692/instance-456122-1178324692.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.97 1.00 0.93 3/64 1493
/proc/meminfo: memFree=1546536/2055920 swapFree=4183976/4192956
[pid=1493] ppid=1491 vsize=568 CPUtime=0
/proc/1493/stat : 1493 (picosat) R 1491 1493 872 0 -1 4194304 69 0 0 0 0 0 0 0 18 0 1 0 187314483 581632 55 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/1493/statm: 142 55 40 102 0 37 0

[startup+0.022889 s]
/proc/loadavg: 0.97 1.00 0.93 3/64 1493
/proc/meminfo: memFree=1546536/2055920 swapFree=4183976/4192956
[pid=1493] ppid=1491 vsize=568 CPUtime=0.01
/proc/1493/stat : 1493 (picosat) R 1491 1493 872 0 -1 4194304 88 0 0 0 1 0 0 0 18 0 1 0 187314483 581632 74 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134522745 0 0 4096 0 0 0 0 17 1 0 0
/proc/1493/statm: 142 74 42 102 0 37 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 568

[startup+0.101896 s]
/proc/loadavg: 0.97 1.00 0.93 3/64 1493
/proc/meminfo: memFree=1546536/2055920 swapFree=4183976/4192956
[pid=1493] ppid=1491 vsize=708 CPUtime=0.09
/proc/1493/stat : 1493 (picosat) R 1491 1493 872 0 -1 4194304 119 0 0 0 9 0 0 0 18 0 1 0 187314483 724992 103 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525775 0 0 4096 0 0 0 0 17 1 0 0
/proc/1493/statm: 177 103 48 102 0 72 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 708

[startup+0.301913 s]
/proc/loadavg: 0.97 1.00 0.93 3/64 1493
/proc/meminfo: memFree=1546536/2055920 swapFree=4183976/4192956
[pid=1493] ppid=1491 vsize=708 CPUtime=0.29
/proc/1493/stat : 1493 (picosat) R 1491 1493 872 0 -1 4194304 126 0 0 0 29 0 0 0 19 0 1 0 187314483 724992 110 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134524014 0 0 4096 0 0 0 0 17 1 0 0
/proc/1493/statm: 177 110 48 102 0 72 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 708

[startup+0.70195 s]
/proc/loadavg: 0.97 1.00 0.93 3/64 1493
/proc/meminfo: memFree=1546536/2055920 swapFree=4183976/4192956
[pid=1493] ppid=1491 vsize=708 CPUtime=0.69
/proc/1493/stat : 1493 (picosat) R 1491 1493 872 0 -1 4194304 132 0 0 0 69 0 0 0 22 0 1 0 187314483 724992 116 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134530341 0 0 4096 0 0 0 0 17 1 0 0
/proc/1493/statm: 177 116 48 102 0 72 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 708

[startup+1.50102 s]
/proc/loadavg: 0.97 1.00 0.93 2/65 1494
/proc/meminfo: memFree=1546144/2055920 swapFree=4183976/4192956
[pid=1493] ppid=1491 vsize=832 CPUtime=1.49
/proc/1493/stat : 1493 (picosat) R 1491 1493 872 0 -1 4194304 144 0 0 0 149 0 0 0 25 0 1 0 187314483 851968 128 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/1493/statm: 208 128 48 102 0 103 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 832

[startup+3.10117 s]
/proc/loadavg: 0.97 1.00 0.93 2/65 1494
/proc/meminfo: memFree=1545952/2055920 swapFree=4183976/4192956
[pid=1493] ppid=1491 vsize=832 CPUtime=3.09
/proc/1493/stat : 1493 (picosat) R 1491 1493 872 0 -1 4194304 154 0 0 0 309 0 0 0 25 0 1 0 187314483 851968 138 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134529600 0 0 4096 0 0 0 0 17 1 0 0
/proc/1493/statm: 208 138 48 102 0 103 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 832

[startup+6.30147 s]
/proc/loadavg: 0.97 1.00 0.93 2/65 1494
/proc/meminfo: memFree=1545888/2055920 swapFree=4183976/4192956
[pid=1493] ppid=1491 vsize=980 CPUtime=6.29
/proc/1493/stat : 1493 (picosat) R 1491 1493 872 0 -1 4194304 178 0 0 0 629 0 0 0 25 0 1 0 187314483 1003520 162 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/1493/statm: 245 162 48 102 0 140 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 980

[startup+12.7011 s]
/proc/loadavg: 0.97 1.00 0.93 2/65 1494
/proc/meminfo: memFree=1545696/2055920 swapFree=4183976/4192956
[pid=1493] ppid=1491 vsize=1104 CPUtime=12.68
/proc/1493/stat : 1493 (picosat) R 1491 1493 872 0 -1 4194304 208 0 0 0 1268 0 0 0 25 0 1 0 187314483 1130496 192 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/1493/statm: 276 192 48 102 0 171 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 1104

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

[startup+13.5011 s]
/proc/loadavg: 0.97 1.00 0.93 2/65 1494
/proc/meminfo: memFree=1545632/2055920 swapFree=4183976/4192956
[pid=1493] ppid=1491 vsize=1104 CPUtime=13.48
/proc/1493/stat : 1493 (picosat) R 1491 1493 872 0 -1 4194304 211 0 0 0 1348 0 0 0 25 0 1 0 187314483 1130496 195 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525778 0 0 4096 0 0 0 0 17 1 0 0
/proc/1493/statm: 276 195 48 102 0 171 0
Current children cumulated CPU time (s) 13.48
Current children cumulated vsize (KiB) 1104

[startup+13.7012 s]
/proc/loadavg: 0.97 1.00 0.93 2/65 1494
/proc/meminfo: memFree=1545632/2055920 swapFree=4183976/4192956
[pid=1493] ppid=1491 vsize=1104 CPUtime=13.68
/proc/1493/stat : 1493 (picosat) R 1491 1493 872 0 -1 4194304 211 0 0 0 1368 0 0 0 25 0 1 0 187314483 1130496 195 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525763 0 0 4096 0 0 0 0 17 1 0 0
/proc/1493/statm: 276 195 48 102 0 171 0
Current children cumulated CPU time (s) 13.68
Current children cumulated vsize (KiB) 1104

Child status: 10
Real time (s): 13.7629
CPU time (s): 13.7579
CPU user time (s): 13.7479
CPU system time (s): 0.009998
CPU usage (%): 99.9637
Max. virtual memory (cumulated for all children) (KiB): 1104

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.7479
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 221
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= 8
involuntary context switches= 18

runsolver used 0.008998 second user time and 0.033994 second system time

The end

Launcher Data (download as text)

Begin job on node48 on Sat May  5 00:24:52 UTC 2007

IDJOB= 456122
IDBENCH= 24606
IDSOLVER= 171
FILE ID= node48/456122-1178324692

PBS_JOBID= 5188734

Free space on /tmp= 66564 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/jarvisalo/mod2-rand3bip-sat-210-2.sat05-2159.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/456122-1178324692/picosat /tmp/evaluation/456122-1178324692/instance-456122-1178324692.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node48/watcher-456122-1178324692 -o ROOT/results/node48/solver-456122-1178324692 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/456122-1178324692/picosat /tmp/evaluation/456122-1178324692/instance-456122-1178324692.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  f34a97e9100b15a8025a13df7cb62499

RANDOM SEED= 119971994

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node48.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		: 3000.238
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		: 3000.238
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:       1546944 kB
Buffers:         33008 kB
Cached:         375516 kB
SwapCached:       3080 kB
Active:         120648 kB
Inactive:       298020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1546944 kB
SwapTotal:     4192956 kB
SwapFree:      4183976 kB
Dirty:             488 kB
Writeback:           0 kB
Mapped:          16100 kB
Slab:            76300 kB
Committed_AS:  3697564 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= 66564 MiB

End job on node48 on Sat May  5 00:25:05 UTC 2007