Trace number 3221270

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
MPhaseSAT_M 2011-02-16SAT 3.56046 3.56231

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v175-c3727-S100095490-071.SATISFIABLE.cnf
MD5SUM2ab9bb0f88fa203f02db11acc4404e31
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.144977
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 

3.49/3.56	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
3.49/3.56	c input CNF file=HOME/instance-3221270-1303291064.cnf 
3.49/3.56	c Clause#=3727  var#=175  ratio=21 
3.49/3.56	c Simplified clause#=3727 
3.49/3.56	c XOR_varElimination deleted var#=0 clauses#=3727 
3.49/3.56	c inative var#=0 
3.49/3.56	c free var#=175  
3.49/3.56	c local search on 
3.49/3.56	c A solution found by local search 
3.49/3.56	c unfixed var#=0 var#=175 
3.49/3.56	c verified 
3.49/3.56	c 
3.49/3.56	s SATISFIABLE
3.49/3.56	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 
3.49/3.56	v 0
3.49/3.56	c 
3.49/3.56	c  Running time=3.559458

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3221270-1303291064/watcher-3221270-1303291064 -o /tmp/evaluation-result-3221270-1303291064/solver-3221270-1303291064 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3221270-1303291064.cnf 

running on 4 cores: 1,3,5,7

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): 5000 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 2.18 3.18 2/177 19732
/proc/meminfo: memFree=16387568/32951124 swapFree=67111528/67111528
[pid=19732] ppid=19730 vsize=3140 CPUtime=0 cores=1,3,5,7
/proc/19732/stat : 19732 (MPhaseSAT_M) R 19730 19732 19456 0 -1 4202496 330 0 0 0 0 0 0 0 25 0 1 0 421521988 3215360 272 33554432000 134512640 134829744 4287970736 18446744073709551615 134531753 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/19732/statm: 785 272 225 78 0 71 0

[startup+0.0999951 s]
/proc/loadavg: 2.00 2.18 3.18 2/177 19732
/proc/meminfo: memFree=16387568/32951124 swapFree=67111528/67111528
[pid=19732] ppid=19730 vsize=3676 CPUtime=0.09 cores=1,3,5,7
/proc/19732/stat : 19732 (MPhaseSAT_M) R 19730 19732 19456 0 -1 4202496 516 0 0 0 9 0 0 0 25 0 1 0 421521988 3764224 455 33554432000 134512640 134829744 4287970736 18446744073709551615 134626786 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/19732/statm: 919 455 263 78 0 205 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3676

[startup+0.100996 s]
/proc/loadavg: 2.00 2.18 3.18 2/177 19732
/proc/meminfo: memFree=16387568/32951124 swapFree=67111528/67111528
[pid=19732] ppid=19730 vsize=3676 CPUtime=0.09 cores=1,3,5,7
/proc/19732/stat : 19732 (MPhaseSAT_M) R 19730 19732 19456 0 -1 4202496 516 0 0 0 9 0 0 0 25 0 1 0 421521988 3764224 455 33554432000 134512640 134829744 4287970736 18446744073709551615 134668056 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/19732/statm: 919 455 263 78 0 205 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3676

[startup+0.300958 s]
/proc/loadavg: 2.00 2.18 3.18 2/177 19732
/proc/meminfo: memFree=16387568/32951124 swapFree=67111528/67111528
[pid=19732] ppid=19730 vsize=4204 CPUtime=0.29 cores=1,3,5,7
/proc/19732/stat : 19732 (MPhaseSAT_M) R 19730 19732 19456 0 -1 4202496 644 0 0 0 29 0 0 0 25 0 1 0 421521988 4304896 583 33554432000 134512640 134829744 4287970736 18446744073709551615 2797390 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/19732/statm: 1051 583 270 78 0 337 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4204

[startup+0.700892 s]
/proc/loadavg: 2.00 2.18 3.18 2/177 19732
/proc/meminfo: memFree=16387568/32951124 swapFree=67111528/67111528
[pid=19732] ppid=19730 vsize=4468 CPUtime=0.69 cores=1,3,5,7
/proc/19732/stat : 19732 (MPhaseSAT_M) R 19730 19732 19456 0 -1 4202496 708 0 0 0 69 0 0 0 25 0 1 0 421521988 4575232 647 33554432000 134512640 134829744 4287970736 18446744073709551615 134661432 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/19732/statm: 1117 647 270 78 0 403 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4468

[startup+1.50074 s]
/proc/loadavg: 2.00 2.18 3.18 3/178 19733
/proc/meminfo: memFree=16385336/32951124 swapFree=67111528/67111528
[pid=19732] ppid=19730 vsize=4864 CPUtime=1.49 cores=1,3,5,7
/proc/19732/stat : 19732 (MPhaseSAT_M) R 19730 19732 19456 0 -1 4202496 820 0 0 0 149 0 0 0 25 0 1 0 421521988 4980736 759 33554432000 134512640 134829744 4287970736 18446744073709551615 134606343 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/19732/statm: 1216 759 273 78 0 502 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4864

[startup+3.10044 s]
/proc/loadavg: 2.00 2.18 3.18 3/178 19733
/proc/meminfo: memFree=16384976/32951124 swapFree=67111528/67111528
[pid=19732] ppid=19730 vsize=4864 CPUtime=3.09 cores=1,3,5,7
/proc/19732/stat : 19732 (MPhaseSAT_M) R 19730 19732 19456 0 -1 4202496 820 0 0 0 309 0 0 0 25 0 1 0 421521988 4980736 759 33554432000 134512640 134829744 4287970736 18446744073709551615 134606613 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/19732/statm: 1216 759 273 78 0 502 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4864

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

[startup+3.50035 s]
/proc/loadavg: 2.00 2.18 3.18 3/178 19733
/proc/meminfo: memFree=16384992/32951124 swapFree=67111528/67111528
[pid=19732] ppid=19730 vsize=4864 CPUtime=3.49 cores=1,3,5,7
/proc/19732/stat : 19732 (MPhaseSAT_M) R 19730 19732 19456 0 -1 4202496 820 0 0 0 349 0 0 0 25 0 1 0 421521988 4980736 759 33554432000 134512640 134829744 4287970736 18446744073709551615 134606542 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/19732/statm: 1216 759 273 78 0 502 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 4864

Child status: 10
Real time (s): 3.56231
CPU time (s): 3.56046
CPU user time (s): 3.55946
CPU system time (s): 0.000999
CPU usage (%): 99.9481
Max. virtual memory (cumulated for all children) (KiB): 4864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.55946
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= 829
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= 10

runsolver used 0.006998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node141 at 2011-04-20 11:17:44
IDJOB=3221270
IDBENCH=82895
IDSOLVER=1637
FILE ID=node141/3221270-1303291064
RUNJOBID= node141-1303290256-19475
PBS_JOBID= 13049614
Free space on /tmp= 71468 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S100095490-071.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221270-1303291064/watcher-3221270-1303291064 -o /tmp/evaluation-result-3221270-1303291064/solver-3221270-1303291064 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3221270-1303291064.cnf

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

MD5SUM BENCH= 2ab9bb0f88fa203f02db11acc4404e31
RANDOM SEED=141851670

node141.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		: 2666.806
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	: 5333.61
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		: 2666.806
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	: 5362.96
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		: 2666.806
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	: 5332.82
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		: 2666.806
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	: 5332.75
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		: 2666.806
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	: 5332.84
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		: 2666.806
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	: 5332.75
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		: 2666.806
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		: 2666.806
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      16387832 kB
Buffers:        788796 kB
Cached:       15299128 kB
SwapCached:          0 kB
Active:        8627444 kB
Inactive:      7584404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16387832 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             400 kB
Writeback:           0 kB
AnonPages:      123988 kB
Mapped:          16216 kB
Slab:           289328 kB
PageTables:       4524 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   271612 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= 71464 MiB
End job on node141 at 2011-04-20 11:17:47