Trace number 3157180

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
shortsattime2011 2011-03-02SAT 12.836 12.8362

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 benchmark0.084986
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 

12.80/12.83	c 0 clauses are redundant and removed
12.80/12.83	c 0 vars are fixed and 0 clauses are removed after unit propagation
12.80/12.83	c 0 vars are fixed and 0 clauses are removed after lookahead
12.80/12.83	c initial seed is 216856927
12.80/12.83	c try=1 flip j=7151511 walk=5372843 seed 216856944
12.80/12.83	c A solution is found
12.80/12.83	s SATISFIABLE
12.80/12.83	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 
12.80/12.83	v 0 
12.80/12.83	c Done (mycputime is 12 seconds)

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-3157180-1301682957/watcher-3157180-1301682957 -o /tmp/evaluation-result-3157180-1301682957/solver-3157180-1301682957 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157180-1301682957.cnf 216850140 

running on 2 cores: 4,6

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: 3.92 3.99 3.92 4/189 8777
/proc/meminfo: memFree=19923032/32951124 swapFree=67111528/67111528
[pid=8777] ppid=8775 vsize=1185844 CPUtime=0 cores=4,6
/proc/8777/stat : 8777 (shortsattime201) R 8775 8777 7806 0 -1 4202496 341 0 0 0 0 0 0 0 25 0 1 0 260711068 1214304256 283 33554432000 4194304 4230460 140734481180304 18446744073709551615 4207761 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8777/statm: 296461 283 103 9 0 293618 0

[startup+0.088165 s]
/proc/loadavg: 3.92 3.99 3.92 4/189 8777
/proc/meminfo: memFree=19923032/32951124 swapFree=67111528/67111528
[pid=8777] ppid=8775 vsize=1186112 CPUtime=0.08 cores=4,6
/proc/8777/stat : 8777 (shortsattime201) R 8775 8777 7806 0 -1 4202496 474 0 0 0 8 0 0 0 25 0 1 0 260711068 1214578688 415 33554432000 4194304 4230460 140734481180304 18446744073709551615 4220291 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8777/statm: 296528 415 117 9 0 293685 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1186112

[startup+0.101156 s]
/proc/loadavg: 3.92 3.99 3.92 4/189 8777
/proc/meminfo: memFree=19923032/32951124 swapFree=67111528/67111528
[pid=8777] ppid=8775 vsize=1186112 CPUtime=0.1 cores=4,6
/proc/8777/stat : 8777 (shortsattime201) R 8775 8777 7806 0 -1 4202496 474 0 0 0 10 0 0 0 25 0 1 0 260711068 1214578688 415 33554432000 4194304 4230460 140734481180304 18446744073709551615 4223222 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8777/statm: 296528 415 117 9 0 293685 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1186112

[startup+0.301119 s]
/proc/loadavg: 3.92 3.99 3.92 4/189 8777
/proc/meminfo: memFree=19923032/32951124 swapFree=67111528/67111528
[pid=8777] ppid=8775 vsize=1186112 CPUtime=0.3 cores=4,6
/proc/8777/stat : 8777 (shortsattime201) R 8775 8777 7806 0 -1 4202496 474 0 0 0 30 0 0 0 25 0 1 0 260711068 1214578688 415 33554432000 4194304 4230460 140734481180304 18446744073709551615 4219843 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8777/statm: 296528 415 117 9 0 293685 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1186112

[startup+0.701095 s]
/proc/loadavg: 3.92 3.99 3.92 4/189 8777
/proc/meminfo: memFree=19923032/32951124 swapFree=67111528/67111528
[pid=8777] ppid=8775 vsize=1186112 CPUtime=0.7 cores=4,6
/proc/8777/stat : 8777 (shortsattime201) R 8775 8777 7806 0 -1 4202496 474 0 0 0 70 0 0 0 25 0 1 0 260711068 1214578688 415 33554432000 4194304 4230460 140734481180304 18446744073709551615 4220226 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8777/statm: 296528 415 117 9 0 293685 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1186112

[startup+1.50093 s]
/proc/loadavg: 3.92 3.99 3.92 5/190 8778
/proc/meminfo: memFree=19921536/32951124 swapFree=67111528/67111528
[pid=8777] ppid=8775 vsize=1186112 CPUtime=1.5 cores=4,6
/proc/8777/stat : 8777 (shortsattime201) R 8775 8777 7806 0 -1 4202496 474 0 0 0 150 0 0 0 25 0 1 0 260711068 1214578688 415 33554432000 4194304 4230460 140734481180304 18446744073709551615 4219854 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8777/statm: 296528 415 117 9 0 293685 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1186112

[startup+3.10065 s]
/proc/loadavg: 3.92 3.99 3.92 5/190 8778
/proc/meminfo: memFree=19921040/32951124 swapFree=67111528/67111528
[pid=8777] ppid=8775 vsize=1186112 CPUtime=3.09 cores=4,6
/proc/8777/stat : 8777 (shortsattime201) R 8775 8777 7806 0 -1 4202496 474 0 0 0 309 0 0 0 25 0 1 0 260711068 1214578688 415 33554432000 4194304 4230460 140734481180304 18446744073709551615 4219807 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8777/statm: 296528 415 117 9 0 293685 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1186112

[startup+6.30106 s]
/proc/loadavg: 3.93 3.99 3.92 5/190 8778
/proc/meminfo: memFree=19920576/32951124 swapFree=67111528/67111528
[pid=8777] ppid=8775 vsize=1186112 CPUtime=6.3 cores=4,6
/proc/8777/stat : 8777 (shortsattime201) R 8775 8777 7806 0 -1 4202496 474 0 0 0 630 0 0 0 25 0 1 0 260711068 1214578688 415 33554432000 4194304 4230460 140734481180304 18446744073709551615 4220100 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8777/statm: 296528 415 117 9 0 293685 0
Current children cumulated CPU time (s) 6.3
Current children cumulated vsize (KiB) 1186112

[startup+12.7009 s]
/proc/loadavg: 3.94 3.99 3.92 5/190 8779
/proc/meminfo: memFree=19920708/32951124 swapFree=67111528/67111528
[pid=8777] ppid=8775 vsize=1186112 CPUtime=12.7 cores=4,6
/proc/8777/stat : 8777 (shortsattime201) R 8775 8777 7806 0 -1 4202496 474 0 0 0 1270 0 0 0 25 0 1 0 260711068 1214578688 415 33554432000 4194304 4230460 140734481180304 18446744073709551615 4220923 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8777/statm: 296528 415 117 9 0 293685 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 1186112

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

[startup+12.8009 s]
/proc/loadavg: 3.94 3.99 3.92 5/190 8779
/proc/meminfo: memFree=19920708/32951124 swapFree=67111528/67111528
[pid=8777] ppid=8775 vsize=1186112 CPUtime=12.8 cores=4,6
/proc/8777/stat : 8777 (shortsattime201) R 8775 8777 7806 0 -1 4202496 474 0 0 0 1280 0 0 0 25 0 1 0 260711068 1214578688 415 33554432000 4194304 4230460 140734481180304 18446744073709551615 4219578 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8777/statm: 296528 415 117 9 0 293685 0
Current children cumulated CPU time (s) 12.8
Current children cumulated vsize (KiB) 1186112

Child status: 10
Real time (s): 12.8362
CPU time (s): 12.836
CPU user time (s): 12.835
CPU system time (s): 0.000999
CPU usage (%): 99.9989
Max. virtual memory (cumulated for all children) (KiB): 1186112

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.835
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= 478
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= 19

runsolver used 0.016997 second user time and 0.044993 second system time

The end

Launcher Data 

Begin job on node140 at 2011-04-01 20:35:57
IDJOB=3157180
IDBENCH=82895
IDSOLVER=1566
FILE ID=node140/3157180-1301682957
RUNJOBID= node140-1301678138-7825
PBS_JOBID= 12840558
Free space on /tmp= 71332 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S100095490-071.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157180-1301682957/watcher-3157180-1301682957 -o /tmp/evaluation-result-3157180-1301682957/solver-3157180-1301682957 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157180-1301682957.cnf 216850140

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

MD5SUM BENCH= 2ab9bb0f88fa203f02db11acc4404e31
RANDOM SEED=216850140

node140.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		: 2666.833
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		: 2666.833
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	: 5226.14
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		: 2666.833
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		: 2666.833
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	: 5332.77
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		: 2666.833
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	: 5332.75
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		: 2666.833
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	: 5332.74
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		: 2666.833
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		: 2666.833
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:      19923064 kB
Buffers:        352824 kB
Cached:       12325664 kB
SwapCached:          0 kB
Active:        7515336 kB
Inactive:      5232236 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      19923064 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7796 kB
Writeback:           0 kB
AnonPages:       69152 kB
Mapped:          15320 kB
Slab:           214180 kB
PageTables:       5692 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3795696 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= 71324 MiB
End job on node140 at 2011-04-01 20:36:10