Trace number 3426839

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
sattime2011 2011-03-02SAT 0.38894 0.38945

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v175-c3727-S752966552-099.SATISFIABLE.cnf
MD5SUMc27e99aa66f5519277e3446434cc73f8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.039993
Satisfiable
(Un)Satisfiability was proved
Number of variables175
Number of clauses3727
Sum of the clauses size18635
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 53727
Number of clauses of size over 50

Solver Data 

0.29/0.38	c 0 clauses are redundant and removed
0.29/0.38	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.29/0.38	c 0 vars are fixed and 0 clauses are removed after lookahead
0.29/0.38	c initial seed is 1785507947
0.29/0.38	c try=1 flip j=192099 walk=144199 seed 1785507964
0.29/0.38	c A solution is found
0.29/0.38	s SATISFIABLE
0.29/0.38	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 
0.29/0.38	v 0 
0.29/0.38	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3426839-1306773967/watcher-3426839-1306773967 -o /tmp/evaluation-result-3426839-1306773967/solver-3426839-1306773967 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426839-1306773967.cnf 1785504490 

running on 4 cores: 0,2,4,6

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): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.00 2.00 2/373 21589
/proc/meminfo: memFree=7649028/32951124 swapFree=37160472/67111528
[pid=21589] ppid=21587 vsize=1185844 CPUtime=0 cores=0,2,4,6
/proc/21589/stat : 21589 (sattime2011) R 21587 21589 20754 0 -1 4202496 339 0 0 0 0 0 0 0 25 0 1 0 788997173 1214304256 283 33554432000 4194304 4230460 140737353542832 18446744073709551615 4207720 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21589/statm: 296461 283 103 9 0 293618 0

[startup+0.102246 s]
/proc/loadavg: 2.00 2.00 2.00 2/373 21589
/proc/meminfo: memFree=7649028/32951124 swapFree=37160472/67111528
[pid=21589] ppid=21587 vsize=1186112 CPUtime=0.1 cores=0,2,4,6
/proc/21589/stat : 21589 (sattime2011) R 21587 21589 20754 0 -1 4202496 472 0 0 0 10 0 0 0 25 0 1 0 788997173 1214578688 415 33554432000 4194304 4230460 140737353542832 18446744073709551615 4220898 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21589/statm: 296528 415 117 9 0 293685 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1186112

[startup+0.200258 s]
/proc/loadavg: 2.00 2.00 2.00 2/373 21589
/proc/meminfo: memFree=7649028/32951124 swapFree=37160472/67111528
[pid=21589] ppid=21587 vsize=1186112 CPUtime=0.19 cores=0,2,4,6
/proc/21589/stat : 21589 (sattime2011) R 21587 21589 20754 0 -1 4202496 472 0 0 0 19 0 0 0 25 0 1 0 788997173 1214578688 415 33554432000 4194304 4230460 140737353542832 18446744073709551615 4219940 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21589/statm: 296528 415 117 9 0 293685 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1186112

[startup+0.300236 s]
/proc/loadavg: 2.00 2.00 2.00 2/373 21589
/proc/meminfo: memFree=7649028/32951124 swapFree=37160472/67111528
[pid=21589] ppid=21587 vsize=1186112 CPUtime=0.29 cores=0,2,4,6
/proc/21589/stat : 21589 (sattime2011) R 21587 21589 20754 0 -1 4202496 472 0 0 0 29 0 0 0 25 0 1 0 788997173 1214578688 415 33554432000 4194304 4230460 140737353542832 18446744073709551615 4220898 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21589/statm: 296528 415 117 9 0 293685 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1186112

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

[startup+0.300236 s]
/proc/loadavg: 2.00 2.00 2.00 2/373 21589
/proc/meminfo: memFree=7649028/32951124 swapFree=37160472/67111528
[pid=21589] ppid=21587 vsize=1186112 CPUtime=0.29 cores=0,2,4,6
/proc/21589/stat : 21589 (sattime2011) R 21587 21589 20754 0 -1 4202496 472 0 0 0 29 0 0 0 25 0 1 0 788997173 1214578688 415 33554432000 4194304 4230460 140737353542832 18446744073709551615 4220898 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21589/statm: 296528 415 117 9 0 293685 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1186112

Child status: 10
Real time (s): 0.38945
CPU time (s): 0.38894
CPU user time (s): 0.387941
CPU system time (s): 0.000999
CPU usage (%): 99.869
Max. virtual memory (cumulated for all children) (KiB): 1186112

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.387941
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 476
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= 2

runsolver used 0.005999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node104 at 2011-05-30 18:46:07
IDJOB=3426839
IDBENCH=82811
IDSOLVER=1924
FILE ID=node104/3426839-1306773967
RUNJOBID= node104-1306761774-20772
PBS_JOBID= 13475020
Free space on /tmp= 59176 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S752966552-099.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426839-1306773967/watcher-3426839-1306773967 -o /tmp/evaluation-result-3426839-1306773967/solver-3426839-1306773967 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426839-1306773967.cnf 1785504490

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= c27e99aa66f5519277e3446434cc73f8
RANDOM SEED=1785504490

node104.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.855
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.71
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.855
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.855
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.67
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.855
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.80
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.855
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5293.18
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.855
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.855
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.855
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:       7649184 kB
Buffers:        386156 kB
Cached:       22432536 kB
SwapCached:     152248 kB
Active:       18201224 kB
Inactive:      6395580 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       7649184 kB
SwapTotal:    67111528 kB
SwapFree:     37160472 kB
Dirty:            7956 kB
Writeback:           0 kB
AnonPages:     1638744 kB
Mapped:          11104 kB
Slab:           551236 kB
PageTables:      89384 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 88910292 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 59168 MiB
End job on node104 at 2011-05-30 18:46:08