Trace number 311897

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
Hybrid1 2007-02-08SAT 28.4437 28.4622

General information on the benchmark

Namerandom/2+p/p0.8/v2405/
unif2p-p0.8-v2405-c7479-S183991542-09-SAT.cnf
MD5SUM7e8974f5ce5a0e1fdb59169bba7ce43c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark10.5364
Satisfiable
(Un)Satisfiability was proved
Number of variables2404
Number of clauses7478
Sum of the clauses size20939
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21495
Number of clauses of size 35983
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

28.37/28.45	c try 1 flip j 19685129
28.37/28.45	c A solution is found
28.37/28.45	s SATISFIABLE
28.37/28.45	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 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28.37/28.46	v 0 
28.37/28.46	c Done (mycputime is 0.003 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node4/watcher-311897-1172578275 -o ROOT/results/node4/solver-311897-1172578275 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311897-1172578275/Hybrid1 /tmp/evaluation/311897-1172578275/instance-311897-1172578275.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 0.98 0.99 3/77 25292
/proc/meminfo: memFree=1385128/2055920 swapFree=4192812/4192956
[pid=25292] ppid=25290 vsize=244720 CPUtime=0
/proc/25292/stat : 25292 (Hybrid1) R 25290 25292 25229 0 -1 4194304 105 0 0 0 0 0 0 0 18 0 1 0 277782359 250593280 89 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134521424 0 0 4096 0 0 0 0 17 0 0 0
/proc/25292/statm: 61180 89 39 103 0 60684 0

[startup+0.107513 s]
/proc/loadavg: 0.91 0.98 0.99 3/77 25292
/proc/meminfo: memFree=1385128/2055920 swapFree=4192812/4192956
[pid=25292] ppid=25290 vsize=246952 CPUtime=0.1
/proc/25292/stat : 25292 (Hybrid1) R 25290 25292 25229 0 -1 4194304 420 0 0 0 10 0 0 0 18 0 1 0 277782359 252878848 400 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551272 0 0 4096 0 0 0 0 17 0 0 0
/proc/25292/statm: 61738 400 44 103 0 61242 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246952

[startup+0.515552 s]
/proc/loadavg: 0.91 0.98 0.99 3/77 25292
/proc/meminfo: memFree=1385128/2055920 swapFree=4192812/4192956
[pid=25292] ppid=25290 vsize=246952 CPUtime=0.51
/proc/25292/stat : 25292 (Hybrid1) R 25290 25292 25229 0 -1 4194304 420 0 0 0 51 0 0 0 22 0 1 0 277782359 252878848 400 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134553269 0 0 4096 0 0 0 0 17 0 0 0
/proc/25292/statm: 61738 400 44 103 0 61242 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 246952

[startup+1.33763 s]
/proc/loadavg: 0.91 0.98 0.99 2/78 25293
/proc/meminfo: memFree=1383264/2055920 swapFree=4192812/4192956
[pid=25292] ppid=25290 vsize=246952 CPUtime=1.33
/proc/25292/stat : 25292 (Hybrid1) R 25290 25292 25229 0 -1 4194304 420 0 0 0 133 0 0 0 25 0 1 0 277782359 252878848 400 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134552268 0 0 4096 0 0 0 0 17 0 0 0
/proc/25292/statm: 61738 400 44 103 0 61242 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 246952

[startup+2.97879 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 25293
/proc/meminfo: memFree=1383264/2055920 swapFree=4192812/4192956
[pid=25292] ppid=25290 vsize=246952 CPUtime=2.97
/proc/25292/stat : 25292 (Hybrid1) R 25290 25292 25229 0 -1 4194304 420 0 0 0 297 0 0 0 25 0 1 0 277782359 252878848 400 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551747 0 0 4096 0 0 0 0 17 0 0 0
/proc/25292/statm: 61738 400 44 103 0 61242 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 246952

[startup+6.2551 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 25293
/proc/meminfo: memFree=1383264/2055920 swapFree=4192812/4192956
[pid=25292] ppid=25290 vsize=246952 CPUtime=6.25
/proc/25292/stat : 25292 (Hybrid1) R 25290 25292 25229 0 -1 4194304 420 0 0 0 625 0 0 0 25 0 1 0 277782359 252878848 400 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134552344 0 0 4096 0 0 0 0 17 0 0 0
/proc/25292/statm: 61738 400 44 103 0 61242 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 246952

[startup+12.7127 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 25293
/proc/meminfo: memFree=1383136/2055920 swapFree=4192812/4192956
[pid=25292] ppid=25290 vsize=246952 CPUtime=12.7
/proc/25292/stat : 25292 (Hybrid1) R 25290 25292 25229 0 -1 4194304 420 0 0 0 1270 0 0 0 25 0 1 0 277782359 252878848 400 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134553543 0 0 4096 0 0 0 0 17 0 0 0
/proc/25292/statm: 61738 400 44 103 0 61242 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 246952

[startup+25.5169 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 25293
/proc/meminfo: memFree=1383264/2055920 swapFree=4192812/4192956
[pid=25292] ppid=25290 vsize=246952 CPUtime=25.5
/proc/25292/stat : 25292 (Hybrid1) R 25290 25292 25229 0 -1 4194304 420 0 0 0 2550 0 0 0 25 0 1 0 277782359 252878848 400 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134545595 0 0 4096 0 0 0 0 17 0 0 0
/proc/25292/statm: 61738 400 44 103 0 61242 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 246952

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

[startup+26.237 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 25293
/proc/meminfo: memFree=1383264/2055920 swapFree=4192812/4192956
[pid=25292] ppid=25290 vsize=246952 CPUtime=26.22
/proc/25292/stat : 25292 (Hybrid1) R 25290 25292 25229 0 -1 4194304 420 0 0 0 2622 0 0 0 25 0 1 0 277782359 252878848 400 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551529 0 0 4096 0 0 0 0 17 0 0 0
/proc/25292/statm: 61738 400 44 103 0 61242 0
Current children cumulated CPU time (s) 26.22
Current children cumulated vsize (KiB) 246952

[startup+27.0551 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 25293
/proc/meminfo: memFree=1383264/2055920 swapFree=4192812/4192956
[pid=25292] ppid=25290 vsize=246952 CPUtime=27.04
/proc/25292/stat : 25292 (Hybrid1) R 25290 25292 25229 0 -1 4194304 420 0 0 0 2704 0 0 0 25 0 1 0 277782359 252878848 400 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134552465 0 0 4096 0 0 0 0 17 0 0 0
/proc/25292/statm: 61738 400 44 103 0 61242 0
Current children cumulated CPU time (s) 27.04
Current children cumulated vsize (KiB) 246952

[startup+27.8792 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 25293
/proc/meminfo: memFree=1383264/2055920 swapFree=4192812/4192956
[pid=25292] ppid=25290 vsize=246952 CPUtime=27.86
/proc/25292/stat : 25292 (Hybrid1) R 25290 25292 25229 0 -1 4194304 420 0 0 0 2786 0 0 0 25 0 1 0 277782359 252878848 400 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134553327 0 0 4096 0 0 0 0 17 0 0 0
/proc/25292/statm: 61738 400 44 103 0 61242 0
Current children cumulated CPU time (s) 27.86
Current children cumulated vsize (KiB) 246952

[startup+28.2912 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 25293
/proc/meminfo: memFree=1383264/2055920 swapFree=4192812/4192956
[pid=25292] ppid=25290 vsize=246952 CPUtime=28.27
/proc/25292/stat : 25292 (Hybrid1) R 25290 25292 25229 0 -1 4194304 420 0 0 0 2827 0 0 0 25 0 1 0 277782359 252878848 400 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134553373 0 0 4096 0 0 0 0 17 0 0 0
/proc/25292/statm: 61738 400 44 103 0 61242 0
Current children cumulated CPU time (s) 28.27
Current children cumulated vsize (KiB) 246952

[startup+28.3932 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 25293
/proc/meminfo: memFree=1383264/2055920 swapFree=4192812/4192956
[pid=25292] ppid=25290 vsize=246952 CPUtime=28.37
/proc/25292/stat : 25292 (Hybrid1) R 25290 25292 25229 0 -1 4194304 420 0 0 0 2837 0 0 0 25 0 1 0 277782359 252878848 400 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134553613 0 0 4096 0 0 0 0 17 0 0 0
/proc/25292/statm: 61738 400 44 103 0 61242 0
Current children cumulated CPU time (s) 28.37
Current children cumulated vsize (KiB) 246952

Child status: 10
Real time (s): 28.4622
CPU time (s): 28.4437
CPU user time (s): 28.4437
CPU system time (s): 0
CPU usage (%): 99.9348
Max. virtual memory (cumulated for all children) (KiB): 246952

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 28.4437
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 433
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= 11
involuntary context switches= 205

runsolver used 0.033994 second user time and 0.074988 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Tue Feb 27 12:11:15 UTC 2007

IDJOB= 311897
IDBENCH= 20327
IDSOLVER= 115
FILE ID= node4/311897-1172578275

PBS_JOBID= 3971689

Free space on /tmp= 66550 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v2405/unif2p-p0.8-v2405-c7479-S183991542-09-SAT.cnf
COMMAND LINE= /tmp/evaluation/311897-1172578275/Hybrid1 /tmp/evaluation/311897-1172578275/instance-311897-1172578275.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-311897-1172578275 -o ROOT/results/node4/solver-311897-1172578275 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311897-1172578275/Hybrid1 /tmp/evaluation/311897-1172578275/instance-311897-1172578275.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  7e8974f5ce5a0e1fdb59169bba7ce43c

RANDOM SEED= 17452125

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.231
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		: 3000.231
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:       1385600 kB
Buffers:         61112 kB
Cached:         471056 kB
SwapCached:          0 kB
Active:         291816 kB
Inactive:       299840 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1385600 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6404 kB
Writeback:           0 kB
Mapped:          78376 kB
Slab:            64192 kB
Committed_AS:  1083300 kB
PageTables:       1768 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= 66550 MiB

End job on node4 on Tue Feb 27 12:11:44 UTC 2007