Trace number 456110

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 162.717 162.763

General information on the benchmark

Namecrafted/Medium/contest05/jarvisalo/
mod2-rand3bip-sat-230-2.sat05-2189.reshuffled-07.cnf
MD5SUM87d9c7ce297970bb210f40783f709fcc
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010997
Satisfiable
(Un)Satisfiability was proved
Number of variables230
Number of clauses920
Sum of the clauses size2760
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3920
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

162.65/162.76	s SATISFIABLE
162.65/162.76	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
162.65/162.76	v -26 27 28 29 30 -31 -32 -33 34 -35 -36 -37 38 39 -40 41 42 -43 -44 45 46 47
162.65/162.76	v 48 49 50 -51 -52 53 54 -55 -56 57 58 59 60 -61 -62 63 -64 65 -66 -67 68 -69
162.65/162.76	v -70 71 72 -73 -74 -75 -76 -77 -78 79 -80 -81 82 -83 84 -85 86 -87 88 -89 90
162.65/162.76	v -91 92 -93 94 -95 -96 -97 -98 -99 100 101 -102 -103 104 105 106 107 108 -109
162.65/162.76	v 110 111 112 113 -114 -115 116 117 -118 119 120 121 -122 -123 -124 125 -126
162.65/162.76	v 127 -128 129 -130 131 132 133 134 135 -136 137 -138 139 -140 141 -142 143 144
162.65/162.76	v 145 -146 -147 -148 149 150 -151 152 -153 154 155 156 -157 -158 -159 -160 -161
162.65/162.76	v -162 -163 -164 -165 -166 -167 168 169 170 -171 172 -173 174 175 -176 -177
162.65/162.76	v -178 179 180 181 -182 183 184 -185 186 187 188 -189 -190 -191 192 -193 -194
162.65/162.76	v -195 -196 197 -198 -199 -200 201 -202 203 -204 205 206 -207 -208 209 210 211
162.65/162.76	v -212 -213 -214 -215 216 -217 -218 -219 220 221 -222 -223 224 225 -226 227 228
162.65/162.76	v 229 -230 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/node17/watcher-456110-1178324541 -o ROOT/results/node17/solver-456110-1178324541 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/456110-1178324541/picosat /tmp/evaluation/456110-1178324541/instance-456110-1178324541.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: 0.91 0.95 0.98 3/77 30062
/proc/meminfo: memFree=1767088/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=568 CPUtime=0
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 68 0 0 0 0 0 0 0 18 0 1 0 280371575 581632 55 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 142 55 40 102 0 37 0

[startup+0.0782689 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 30062
/proc/meminfo: memFree=1767088/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=708 CPUtime=0.07
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 119 0 0 0 7 0 0 0 18 0 1 0 280371575 724992 104 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134597664 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 177 104 48 102 0 72 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 708

[startup+0.101272 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 30062
/proc/meminfo: memFree=1767088/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=708 CPUtime=0.09
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 119 0 0 0 9 0 0 0 18 0 1 0 280371575 724992 104 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134529446 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 177 104 48 102 0 72 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 708

[startup+0.301292 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 30062
/proc/meminfo: memFree=1767088/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=708 CPUtime=0.29
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 129 0 0 0 29 0 0 0 19 0 1 0 280371575 724992 114 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134597664 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 177 114 48 102 0 72 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 708

[startup+0.701334 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 30062
/proc/meminfo: memFree=1767088/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=708 CPUtime=0.69
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 132 0 0 0 69 0 0 0 22 0 1 0 280371575 724992 117 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525751 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 177 117 48 102 0 72 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 708

[startup+1.50142 s]
/proc/loadavg: 0.91 0.95 0.98 2/78 30063
/proc/meminfo: memFree=1766760/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=832 CPUtime=1.49
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 146 0 0 0 149 0 0 0 25 0 1 0 280371575 851968 131 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525540 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 208 131 48 102 0 103 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 832

[startup+3.10159 s]
/proc/loadavg: 0.91 0.95 0.98 2/78 30063
/proc/meminfo: memFree=1766568/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=832 CPUtime=3.09
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 163 0 0 0 309 0 0 0 25 0 1 0 280371575 851968 148 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 208 148 48 102 0 103 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 832

[startup+6.30192 s]
/proc/loadavg: 0.92 0.95 0.98 2/78 30063
/proc/meminfo: memFree=1766440/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=956 CPUtime=6.29
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 187 0 0 0 629 0 0 0 25 0 1 0 280371575 978944 172 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134520006 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 239 172 48 102 0 134 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 956

[startup+12.7016 s]
/proc/loadavg: 0.93 0.95 0.98 2/78 30063
/proc/meminfo: memFree=1766248/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=1072 CPUtime=12.69
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 221 0 0 0 1269 0 0 0 25 0 1 0 280371575 1097728 206 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525741 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 268 206 48 102 0 163 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1072

[startup+25.5019 s]
/proc/loadavg: 0.94 0.96 0.98 2/78 30063
/proc/meminfo: memFree=1766120/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=1284 CPUtime=25.49
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 262 0 0 0 2549 0 0 0 25 0 1 0 280371575 1314816 247 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 321 247 48 102 0 216 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1284

[startup+51.1016 s]
/proc/loadavg: 0.96 0.96 0.98 2/78 30063
/proc/meminfo: memFree=1765864/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=1616 CPUtime=51.08
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 328 0 0 0 5108 0 0 0 25 0 1 0 280371575 1654784 312 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134524122 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 404 312 48 102 0 299 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 1616

[startup+102.305 s]
/proc/loadavg: 0.98 0.96 0.98 2/78 30063
/proc/meminfo: memFree=1765480/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=1768 CPUtime=102.26
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 384 0 0 0 10226 0 0 0 25 0 1 0 280371575 1810432 368 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 442 368 48 102 0 337 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 1768

[startup+162.301 s]
/proc/loadavg: 0.99 0.97 0.98 2/78 30063
/proc/meminfo: memFree=1765096/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=2036 CPUtime=162.25
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 457 0 0 0 16224 1 0 0 25 0 1 0 280371575 2084864 441 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525828 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 509 441 48 102 0 404 0
Current children cumulated CPU time (s) 162.25
Current children cumulated vsize (KiB) 2036

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

[startup+162.701 s]
/proc/loadavg: 0.99 0.97 0.98 2/78 30063
/proc/meminfo: memFree=1765096/2055920 swapFree=4140168/4192956
[pid=30062] ppid=30060 vsize=2036 CPUtime=162.65
/proc/30062/stat : 30062 (picosat) R 30060 30062 29692 0 -1 4194304 457 0 0 0 16264 1 0 0 25 0 1 0 280371575 2084864 441 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 509 441 48 102 0 404 0
Current children cumulated CPU time (s) 162.65
Current children cumulated vsize (KiB) 2036

Child status: 10
Real time (s): 162.763
CPU time (s): 162.717
CPU user time (s): 162.705
CPU system time (s): 0.011998
CPU usage (%): 99.972
Max. virtual memory (cumulated for all children) (KiB): 2060

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 162.705
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 463
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= 150

runsolver used 0.131979 second user time and 0.335948 second system time

The end

Launcher Data (download as text)

Begin job on node17 on Sat May  5 00:22:21 UTC 2007

IDJOB= 456110
IDBENCH= 24602
IDSOLVER= 171
FILE ID= node17/456110-1178324541

PBS_JOBID= 5188573

Free space on /tmp= 66564 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/jarvisalo/mod2-rand3bip-sat-230-2.sat05-2189.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/456110-1178324541/picosat /tmp/evaluation/456110-1178324541/instance-456110-1178324541.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-456110-1178324541 -o ROOT/results/node17/solver-456110-1178324541 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/456110-1178324541/picosat /tmp/evaluation/456110-1178324541/instance-456110-1178324541.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  87d9c7ce297970bb210f40783f709fcc

RANDOM SEED= 896605538

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node17.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		: 3000.240
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		: 3000.240
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:       1767624 kB
Buffers:         34856 kB
Cached:         126964 kB
SwapCached:      15320 kB
Active:         147740 kB
Inactive:        74836 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1767624 kB
SwapTotal:     4192956 kB
SwapFree:      4140168 kB
Dirty:             488 kB
Writeback:           0 kB
Mapped:          67652 kB
Slab:            51184 kB
Committed_AS: 10044176 kB
PageTables:       1892 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 node17 on Sat May  5 00:25:04 UTC 2007