Trace number 456113

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 8.36973 8.37524

General information on the benchmark

Namecrafted/Medium/contest05/jarvisalo/
mod2-rand3bip-sat-220-2.sat05-2174.reshuffled-07.cnf
MD5SUMa29014c1083fbe8ff0da4344f4f9d84f
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010998
Satisfiable
(Un)Satisfiability was proved
Number of variables220
Number of clauses880
Sum of the clauses size2640
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3880
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

8.28/8.37	s SATISFIABLE
8.28/8.37	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
8.28/8.37	v 25 -26 -27 28 -29 -30 -31 32 -33 34 -35 -36 37 38 -39 40 -41 42 -43 -44 -45
8.28/8.37	v 46 -47 -48 49 50 51 52 -53 -54 -55 56 -57 58 59 -60 61 62 63 64 -65 -66 67 68
8.28/8.37	v -69 -70 71 72 73 74 -75 -76 77 -78 -79 80 -81 82 83 -84 85 -86 -87 -88 -89
8.28/8.37	v -90 -91 92 -93 94 95 96 97 98 -99 -100 101 102 -103 -104 -105 106 107 108 109
8.28/8.37	v 110 111 -112 113 114 -115 -116 117 118 -119 -120 -121 -122 123 -124 125 126
8.28/8.37	v 127 -128 129 130 131 -132 -133 134 135 136 -137 -138 139 -140 141 142 143
8.28/8.37	v -144 145 146 147 -148 149 150 151 -152 153 154 -155 -156 -157 158 159 160
8.28/8.37	v -161 -162 -163 -164 165 166 -167 168 -169 -170 -171 172 -173 -174 -175 176
8.28/8.37	v -177 -178 179 180 181 -182 183 184 185 186 -187 -188 -189 -190 -191 192 -193
8.28/8.37	v 194 195 196 197 -198 199 -200 -201 -202 -203 204 205 -206 -207 208 209 -210
8.28/8.37	v 211 -212 -213 -214 -215 216 217 218 219 -220 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/node37/watcher-456113-1178324570 -o ROOT/results/node37/solver-456113-1178324570 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/456113-1178324570/picosat /tmp/evaluation/456113-1178324570/instance-456113-1178324570.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: 1.99 1.78 1.37 3/78 4007
/proc/meminfo: memFree=1500928/2055920 swapFree=4145672/4192956
[pid=4007] ppid=4005 vsize=568 CPUtime=0
/proc/4007/stat : 4007 (picosat) R 4005 4007 3273 0 -1 4194304 69 0 0 0 0 0 0 0 18 0 1 0 280369441 581632 55 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/4007/statm: 142 55 40 102 0 37 0

[startup+0.053974 s]
/proc/loadavg: 1.99 1.78 1.37 3/78 4007
/proc/meminfo: memFree=1500928/2055920 swapFree=4145672/4192956
[pid=4007] ppid=4005 vsize=708 CPUtime=0.04
/proc/4007/stat : 4007 (picosat) R 4005 4007 3273 0 -1 4194304 118 0 0 0 4 0 0 0 18 0 1 0 280369441 724992 102 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525554 0 0 4096 0 0 0 0 17 1 0 0
/proc/4007/statm: 177 102 48 102 0 72 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 708

[startup+0.101982 s]
/proc/loadavg: 1.99 1.78 1.37 3/78 4007
/proc/meminfo: memFree=1500928/2055920 swapFree=4145672/4192956
[pid=4007] ppid=4005 vsize=708 CPUtime=0.09
/proc/4007/stat : 4007 (picosat) R 4005 4007 3273 0 -1 4194304 121 0 0 0 9 0 0 0 18 0 1 0 280369441 724992 105 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134529850 0 0 4096 0 0 0 0 17 1 0 0
/proc/4007/statm: 177 105 48 102 0 72 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 708

[startup+0.302019 s]
/proc/loadavg: 1.99 1.78 1.37 3/78 4007
/proc/meminfo: memFree=1500928/2055920 swapFree=4145672/4192956
[pid=4007] ppid=4005 vsize=708 CPUtime=0.29
/proc/4007/stat : 4007 (picosat) R 4005 4007 3273 0 -1 4194304 127 0 0 0 29 0 0 0 19 0 1 0 280369441 724992 111 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525921 0 0 4096 0 0 0 0 17 1 0 0
/proc/4007/statm: 177 111 48 102 0 72 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 708

[startup+0.701095 s]
/proc/loadavg: 1.99 1.78 1.37 3/78 4007
/proc/meminfo: memFree=1500928/2055920 swapFree=4145672/4192956
[pid=4007] ppid=4005 vsize=708 CPUtime=0.69
/proc/4007/stat : 4007 (picosat) R 4005 4007 3273 0 -1 4194304 132 0 0 0 69 0 0 0 22 0 1 0 280369441 724992 116 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134520163 0 0 4096 0 0 0 0 17 1 0 0
/proc/4007/statm: 177 116 48 102 0 72 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 708

[startup+1.50125 s]
/proc/loadavg: 1.99 1.78 1.37 2/79 4008
/proc/meminfo: memFree=1500600/2055920 swapFree=4145672/4192956
[pid=4007] ppid=4005 vsize=840 CPUtime=1.49
/proc/4007/stat : 4007 (picosat) R 4005 4007 3273 0 -1 4194304 144 0 0 0 149 0 0 0 25 0 1 0 280369441 860160 128 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/4007/statm: 210 128 48 102 0 105 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 840

[startup+3.10155 s]
/proc/loadavg: 1.91 1.77 1.37 2/79 4008
/proc/meminfo: memFree=1500408/2055920 swapFree=4145672/4192956
[pid=4007] ppid=4005 vsize=840 CPUtime=3.09
/proc/4007/stat : 4007 (picosat) R 4005 4007 3273 0 -1 4194304 165 0 0 0 309 0 0 0 25 0 1 0 280369441 860160 149 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134597654 0 0 4096 0 0 0 0 17 1 0 0
/proc/4007/statm: 210 149 48 102 0 105 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 840

[startup+6.30115 s]
/proc/loadavg: 1.91 1.77 1.37 3/79 4008
/proc/meminfo: memFree=1500216/2055920 swapFree=4145672/4192956
[pid=4007] ppid=4005 vsize=956 CPUtime=6.28
/proc/4007/stat : 4007 (picosat) R 4005 4007 3273 0 -1 4194304 186 0 0 0 628 0 0 0 25 0 1 0 280369441 978944 170 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134529356 0 0 4096 0 0 0 0 17 1 0 0
/proc/4007/statm: 239 170 48 102 0 134 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 956

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

[startup+7.1013 s]
/proc/loadavg: 1.91 1.77 1.37 2/79 4008
/proc/meminfo: memFree=1500216/2055920 swapFree=4145672/4192956
[pid=4007] ppid=4005 vsize=956 CPUtime=7.08
/proc/4007/stat : 4007 (picosat) R 4005 4007 3273 0 -1 4194304 198 0 0 0 708 0 0 0 25 0 1 0 280369441 978944 182 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525807 0 0 4096 0 0 0 0 17 1 0 0
/proc/4007/statm: 239 182 48 102 0 134 0
Current children cumulated CPU time (s) 7.08
Current children cumulated vsize (KiB) 956

[startup+7.90245 s]
/proc/loadavg: 1.84 1.76 1.37 2/79 4008
/proc/meminfo: memFree=1500152/2055920 swapFree=4145672/4192956
[pid=4007] ppid=4005 vsize=956 CPUtime=7.88
/proc/4007/stat : 4007 (picosat) R 4005 4007 3273 0 -1 4194304 198 0 0 0 788 0 0 0 25 0 1 0 280369441 978944 182 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525860 0 0 4096 0 0 0 0 17 1 0 0
/proc/4007/statm: 239 182 48 102 0 134 0
Current children cumulated CPU time (s) 7.88
Current children cumulated vsize (KiB) 956

[startup+8.30153 s]
/proc/loadavg: 1.84 1.76 1.37 2/79 4008
/proc/meminfo: memFree=1500152/2055920 swapFree=4145672/4192956
[pid=4007] ppid=4005 vsize=1108 CPUtime=8.28
/proc/4007/stat : 4007 (picosat) R 4005 4007 3273 0 -1 4194304 201 0 0 0 828 0 0 0 25 0 1 0 280369441 1134592 185 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525783 0 0 4096 0 0 0 0 17 1 0 0
/proc/4007/statm: 277 185 48 102 0 172 0
Current children cumulated CPU time (s) 8.28
Current children cumulated vsize (KiB) 1108

Child status: 10
Real time (s): 8.37524
CPU time (s): 8.36973
CPU user time (s): 8.36073
CPU system time (s): 0.008998
CPU usage (%): 99.9341
Max. virtual memory (cumulated for all children) (KiB): 1108

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.36073
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 207
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= 20

runsolver used 0.012998 second user time and 0.021996 second system time

The end

Launcher Data (download as text)

Begin job on node37 on Sat May  5 00:22:50 UTC 2007

IDJOB= 456113
IDBENCH= 24603
IDSOLVER= 171
FILE ID= node37/456113-1178324570

PBS_JOBID= 5188745

Free space on /tmp= 66564 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/jarvisalo/mod2-rand3bip-sat-220-2.sat05-2174.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/456113-1178324570/picosat /tmp/evaluation/456113-1178324570/instance-456113-1178324570.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node37/watcher-456113-1178324570 -o ROOT/results/node37/solver-456113-1178324570 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/456113-1178324570/picosat /tmp/evaluation/456113-1178324570/instance-456113-1178324570.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  a29014c1083fbe8ff0da4344f4f9d84f

RANDOM SEED= 247070296

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node37.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		: 3000.281
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		: 3000.281
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:       1501336 kB
Buffers:         29928 kB
Cached:         397488 kB
SwapCached:      15196 kB
Active:         163004 kB
Inactive:       288040 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1501336 kB
SwapTotal:     4192956 kB
SwapFree:      4145672 kB
Dirty:             528 kB
Writeback:           0 kB
Mapped:          30524 kB
Slab:            88764 kB
Committed_AS:  6662436 kB
PageTables:       2004 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 node37 on Sat May  5 00:22:58 UTC 2007