Trace number 3094910

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
MPhaseSAT64 2011-03-03SAT 3.2885 3.29187

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v175-c3727-S539832832-088.SATISFIABLE.cnf
MD5SUM96d6aca5635fba3566aa8534cdc228f2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.734888
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 

3.20/3.29	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
3.20/3.29	c input CNF file=HOME/instance-3094910-1301753779.cnf 
3.20/3.29	c Clause#=3727  var#=175  ratio=21 
3.20/3.29	c Simplified clause#=3727 
3.20/3.29	c XOR_varElimination deleted var#=0 clauses#=3727 
3.20/3.29	c inative var#=0 
3.20/3.29	c free var#=175  
3.20/3.29	c local search on 
3.20/3.29	c A solution found by local search 
3.20/3.29	c unfixed var#=0 var#=175 
3.20/3.29	c verified 
3.20/3.29	c 
3.20/3.29	s SATISFIABLE
3.20/3.29	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 
3.20/3.29	v 0
3.20/3.29	c 
3.20/3.29	c  Running time=3.287501

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3094910-1301753779/watcher-3094910-1301753779 -o /tmp/evaluation-result-3094910-1301753779/solver-3094910-1301753779 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3094910-1301753779.cnf 

running on 2 cores: 1,3

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 4.01 4.00 3.94 5/187 12179
/proc/meminfo: memFree=22056200/32951132 swapFree=67111528/67111528
[pid=12179] ppid=12177 vsize=3068 CPUtime=0 cores=1,3
/proc/12179/stat : 12179 (MPhaseSAT64) R 12177 12179 11377 0 -1 4202496 322 0 0 0 0 0 0 0 25 0 1 0 286977543 3141632 261 33554432000 134512640 134761588 4287432768 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12179/statm: 767 262 225 61 0 70 0

[startup+0.0391311 s]
/proc/loadavg: 4.01 4.00 3.94 5/187 12179
/proc/meminfo: memFree=22056200/32951132 swapFree=67111528/67111528
[pid=12179] ppid=12177 vsize=3516 CPUtime=0.03 cores=1,3
/proc/12179/stat : 12179 (MPhaseSAT64) R 12177 12179 11377 0 -1 4202496 419 0 0 0 3 0 0 0 25 0 1 0 286977543 3600384 356 33554432000 134512640 134761588 4287432768 18446744073709551615 134580527 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12179/statm: 879 356 237 61 0 182 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3516

[startup+0.101119 s]
/proc/loadavg: 4.01 4.00 3.94 5/187 12179
/proc/meminfo: memFree=22056200/32951132 swapFree=67111528/67111528
[pid=12179] ppid=12177 vsize=4088 CPUtime=0.09 cores=1,3
/proc/12179/stat : 12179 (MPhaseSAT64) R 12177 12179 11377 0 -1 4202496 637 0 0 0 9 0 0 0 25 0 1 0 286977543 4186112 573 33554432000 134512640 134761588 4287432768 18446744073709551615 134643998 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12179/statm: 1022 573 258 61 0 325 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4088

[startup+0.301089 s]
/proc/loadavg: 4.01 4.00 3.94 5/187 12179
/proc/meminfo: memFree=22056200/32951132 swapFree=67111528/67111528
[pid=12179] ppid=12177 vsize=4344 CPUtime=0.29 cores=1,3
/proc/12179/stat : 12179 (MPhaseSAT64) R 12177 12179 11377 0 -1 4202496 717 0 0 0 29 0 0 0 25 0 1 0 286977543 4448256 653 33554432000 134512640 134761588 4287432768 18446744073709551615 134747356 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12179/statm: 1086 653 274 61 0 389 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4344

[startup+0.701019 s]
/proc/loadavg: 4.01 4.00 3.94 5/187 12179
/proc/meminfo: memFree=22056200/32951132 swapFree=67111528/67111528
[pid=12179] ppid=12177 vsize=5556 CPUtime=0.69 cores=1,3
/proc/12179/stat : 12179 (MPhaseSAT64) R 12177 12179 11377 0 -1 4202496 1020 0 0 0 69 0 0 0 25 0 1 0 286977543 5689344 956 33554432000 134512640 134761588 4287432768 18446744073709551615 134616839 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12179/statm: 1389 956 274 61 0 692 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5556

[startup+1.50088 s]
/proc/loadavg: 4.01 4.00 3.94 5/188 12180
/proc/meminfo: memFree=22053008/32951132 swapFree=67111528/67111528
[pid=12179] ppid=12177 vsize=5556 CPUtime=1.49 cores=1,3
/proc/12179/stat : 12179 (MPhaseSAT64) R 12177 12179 11377 0 -1 4202496 1023 0 0 0 149 0 0 0 25 0 1 0 286977543 5689344 959 33554432000 134512640 134761588 4287432768 18446744073709551615 134606114 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12179/statm: 1389 959 277 61 0 692 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5556

[startup+3.10062 s]
/proc/loadavg: 4.01 4.00 3.94 5/188 12180
/proc/meminfo: memFree=22053012/32951132 swapFree=67111528/67111528
[pid=12179] ppid=12177 vsize=5556 CPUtime=3.09 cores=1,3
/proc/12179/stat : 12179 (MPhaseSAT64) R 12177 12179 11377 0 -1 4202496 1023 0 0 0 309 0 0 0 25 0 1 0 286977543 5689344 959 33554432000 134512640 134761588 4287432768 18446744073709551615 134606142 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12179/statm: 1389 959 277 61 0 692 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 5556

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

[startup+3.2006 s]
/proc/loadavg: 4.01 4.00 3.94 5/188 12180
/proc/meminfo: memFree=22052764/32951132 swapFree=67111528/67111528
[pid=12179] ppid=12177 vsize=5556 CPUtime=3.2 cores=1,3
/proc/12179/stat : 12179 (MPhaseSAT64) R 12177 12179 11377 0 -1 4202496 1023 0 0 0 320 0 0 0 25 0 1 0 286977543 5689344 959 33554432000 134512640 134761588 4287432768 18446744073709551615 134605931 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12179/statm: 1389 959 277 61 0 692 0
Current children cumulated CPU time (s) 3.2
Current children cumulated vsize (KiB) 5556

Child status: 10
Real time (s): 3.29187
CPU time (s): 3.2885
CPU user time (s): 3.2885
CPU system time (s): 0
CPU usage (%): 99.8977
Max. virtual memory (cumulated for all children) (KiB): 5556

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.2885
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= 1032
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= 12
involuntary context switches= 9

runsolver used 0.006998 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node129 at 2011-04-02 16:16:19
IDJOB=3094910
IDBENCH=82792
IDSOLVER=1521
FILE ID=node129/3094910-1301753779
RUNJOBID= node129-1301748569-11397
PBS_JOBID= 12841008
Free space on /tmp= 72148 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S539832832-088.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094910-1301753779/watcher-3094910-1301753779 -o /tmp/evaluation-result-3094910-1301753779/solver-3094910-1301753779 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3094910-1301753779.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 96d6aca5635fba3566aa8534cdc228f2
RANDOM SEED=982197549

node129.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		: 2666.831
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	: 5333.66
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		: 2666.831
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		: 2666.831
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	: 5332.75
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		: 2666.831
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	: 5332.82
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		: 2666.831
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	: 5332.74
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		: 2666.831
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		: 2666.831
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		: 2666.831
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      22056232 kB
Buffers:        346168 kB
Cached:       10213240 kB
SwapCached:          0 kB
Active:        7107076 kB
Inactive:      3538956 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      22056232 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             400 kB
Writeback:           0 kB
AnonPages:       86664 kB
Mapped:          17112 kB
Slab:           186112 kB
PageTables:       5288 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   276840 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72148 MiB
End job on node129 at 2011-04-02 16:16:23