Trace number 1630880

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
iPAWS 2009-03-22SAT 4.83027 4.83155

General information on the benchmark

NameRANDOM/LARGE/3SAT/UNKNOWN/2000/
unif-k3-r4.2-v2000-c8400-S136987316-008.cnf
MD5SUMf6ddf1b0f08bcc31521c4b74db5ce22f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.421935
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

4.79/4.83	s SATISFIABLE
4.79/4.83	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 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4.79/4.83	c input file instance-1630880-1240047397.cnf, flips 2802666

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-1630880-1240047397/watcher-1630880-1240047397 -o /tmp/evaluation-result-1630880-1240047397/solver-1630880-1240047397 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/iPAWS HOME/instance-1630880-1240047397.cnf 1453602908 

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): 6000 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: 0.99 0.97 0.99 3/65 19267
/proc/meminfo: memFree=1060328/2055920 swapFree=4192956/4192956
[pid=19267] ppid=19265 vsize=335916 CPUtime=0
/proc/19267/stat : 19267 (iPAWS) R 19265 19267 19086 0 -1 4194304 486 0 0 0 0 0 0 0 20 0 1 0 32769012 343977984 470 1992294400 134512640 135114423 4294956224 18446744073709551615 134533972 0 0 4096 0 0 0 0 17 1 0 0
/proc/19267/statm: 83979 470 54 146 0 83831 0

[startup+0.0891759 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 19267
/proc/meminfo: memFree=1060328/2055920 swapFree=4192956/4192956
[pid=19267] ppid=19265 vsize=335916 CPUtime=0.08
/proc/19267/stat : 19267 (iPAWS) R 19265 19267 19086 0 -1 4194304 1062 0 0 0 8 0 0 0 20 0 1 0 32769012 343977984 1046 1992294400 134512640 135114423 4294956224 18446744073709551615 134517077 0 0 4096 0 0 0 0 17 1 0 0
/proc/19267/statm: 83979 1046 57 146 0 83831 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 335916

[startup+0.101176 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 19267
/proc/meminfo: memFree=1060328/2055920 swapFree=4192956/4192956
[pid=19267] ppid=19265 vsize=335916 CPUtime=0.09
/proc/19267/stat : 19267 (iPAWS) R 19265 19267 19086 0 -1 4194304 1062 0 0 0 9 0 0 0 20 0 1 0 32769012 343977984 1046 1992294400 134512640 135114423 4294956224 18446744073709551615 134514767 0 0 4096 0 0 0 0 17 1 0 0
/proc/19267/statm: 83979 1046 57 146 0 83831 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 335916

[startup+0.301213 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 19267
/proc/meminfo: memFree=1060328/2055920 swapFree=4192956/4192956
[pid=19267] ppid=19265 vsize=335916 CPUtime=0.29
/proc/19267/stat : 19267 (iPAWS) R 19265 19267 19086 0 -1 4194304 1062 0 0 0 29 0 0 0 22 0 1 0 32769012 343977984 1046 1992294400 134512640 135114423 4294956224 18446744073709551615 134547179 0 0 4096 0 0 0 0 17 1 0 0
/proc/19267/statm: 83979 1046 57 146 0 83831 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 335916

[startup+0.701288 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 19267
/proc/meminfo: memFree=1060328/2055920 swapFree=4192956/4192956
[pid=19267] ppid=19265 vsize=335916 CPUtime=0.69
/proc/19267/stat : 19267 (iPAWS) R 19265 19267 19086 0 -1 4194304 1062 0 0 0 69 0 0 0 25 0 1 0 32769012 343977984 1046 1992294400 134512640 135114423 4294956224 18446744073709551615 134517054 0 0 4096 0 0 0 0 17 1 0 0
/proc/19267/statm: 83979 1046 57 146 0 83831 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 335916

[startup+1.50144 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 19268
/proc/meminfo: memFree=1056288/2055920 swapFree=4192956/4192956
[pid=19267] ppid=19265 vsize=335916 CPUtime=1.49
/proc/19267/stat : 19267 (iPAWS) R 19265 19267 19086 0 -1 4194304 1062 0 0 0 149 0 0 0 25 0 1 0 32769012 343977984 1046 1992294400 134512640 135114423 4294956224 18446744073709551615 134515692 0 0 4096 0 0 0 0 17 1 0 0
/proc/19267/statm: 83979 1046 57 146 0 83831 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 335916

[startup+3.10174 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 19268
/proc/meminfo: memFree=1056160/2055920 swapFree=4192956/4192956
[pid=19267] ppid=19265 vsize=335916 CPUtime=3.09
/proc/19267/stat : 19267 (iPAWS) R 19265 19267 19086 0 -1 4194304 1062 0 0 0 309 0 0 0 25 0 1 0 32769012 343977984 1046 1992294400 134512640 135114423 4294956224 18446744073709551615 134517031 0 0 4096 0 0 0 0 17 1 0 0
/proc/19267/statm: 83979 1046 57 146 0 83831 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 335916

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

[startup+3.90188 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 19268
/proc/meminfo: memFree=1056160/2055920 swapFree=4192956/4192956
[pid=19267] ppid=19265 vsize=335916 CPUtime=3.89
/proc/19267/stat : 19267 (iPAWS) R 19265 19267 19086 0 -1 4194304 1062 0 0 0 389 0 0 0 25 0 1 0 32769012 343977984 1046 1992294400 134512640 135114423 4294956224 18446744073709551615 134516985 0 0 4096 0 0 0 0 17 1 0 0
/proc/19267/statm: 83979 1046 57 146 0 83831 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 335916

[startup+4.30196 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 19268
/proc/meminfo: memFree=1056160/2055920 swapFree=4192956/4192956
[pid=19267] ppid=19265 vsize=335916 CPUtime=4.3
/proc/19267/stat : 19267 (iPAWS) R 19265 19267 19086 0 -1 4194304 1062 0 0 0 430 0 0 0 25 0 1 0 32769012 343977984 1046 1992294400 134512640 135114423 4294956224 18446744073709551615 134550422 0 0 4096 0 0 0 0 17 1 0 0
/proc/19267/statm: 83979 1046 57 146 0 83831 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 335916

[startup+4.70203 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 19268
/proc/meminfo: memFree=1056160/2055920 swapFree=4192956/4192956
[pid=19267] ppid=19265 vsize=335916 CPUtime=4.69
/proc/19267/stat : 19267 (iPAWS) R 19265 19267 19086 0 -1 4194304 1062 0 0 0 469 0 0 0 25 0 1 0 32769012 343977984 1046 1992294400 134512640 135114423 4294956224 18446744073709551615 134516127 0 0 4096 0 0 0 0 17 1 0 0
/proc/19267/statm: 83979 1046 57 146 0 83831 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 335916

[startup+4.80105 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 19268
/proc/meminfo: memFree=1056160/2055920 swapFree=4192956/4192956
[pid=19267] ppid=19265 vsize=335916 CPUtime=4.79
/proc/19267/stat : 19267 (iPAWS) R 19265 19267 19086 0 -1 4194304 1062 0 0 0 479 0 0 0 25 0 1 0 32769012 343977984 1046 1992294400 134512640 135114423 4294956224 18446744073709551615 134514777 0 0 4096 0 0 0 0 17 1 0 0
/proc/19267/statm: 83979 1046 57 146 0 83831 0
Current children cumulated CPU time (s) 4.79
Current children cumulated vsize (KiB) 335916

Child status: 0
Real time (s): 4.83155
CPU time (s): 4.83027
CPU user time (s): 4.82527
CPU system time (s): 0.004999
CPU usage (%): 99.9734
Max. virtual memory (cumulated for all children) (KiB): 335916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.82527
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1070
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= 14

runsolver used 0.005999 second user time and 0.017997 second system time

The end

Launcher Data

Begin job on node82 at 2009-04-18 11:36:37
IDJOB=1630880
IDBENCH=70286
IDSOLVER=588
FILE ID=node82/1630880-1240047397
PBS_JOBID= 9157493
Free space on /tmp= 66204 MiB

SOLVER NAME= iPAWS 2009-03-22
BENCH NAME= SAT09/RANDOM/LARGE/3SAT/UNKNOWN/2000/unif-k3-r4.2-v2000-c8400-S136987316-008.cnf
COMMAND LINE= HOME/iPAWS BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1630880-1240047397/watcher-1630880-1240047397 -o /tmp/evaluation-result-1630880-1240047397/solver-1630880-1240047397 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/iPAWS HOME/instance-1630880-1240047397.cnf 1453602908

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= f6ddf1b0f08bcc31521c4b74db5ce22f
RANDOM SEED=1453602908

node82.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		: 3000.259
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		: 3000.259
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1060808 kB
Buffers:         81636 kB
Cached:         819092 kB
SwapCached:          0 kB
Active:         290436 kB
Inactive:       624868 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1060808 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1024 kB
Writeback:           0 kB
Mapped:          24316 kB
Slab:            65760 kB
Committed_AS:   177164 kB
PageTables:       1388 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= 66204 MiB
End job on node82 at 2009-04-18 11:36:42