Trace number 3171233

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
RestartSAT A75UNSAT 2.73858 2.74098

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v50-c1065-S1139883571-082.UNKNOWN.cnf
MD5SUM45cb1bf5c66e11f0109abc39c0f43234
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.132979
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses1065
Sum of the clauses size5325
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 51065
Number of clauses of size over 50

Solver Data 

2.69/2.74	c WARNING: for repeatability, setting FPU to use double precision
2.69/2.74	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

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-3171233-1302826392/watcher-3171233-1302826392 -o /tmp/evaluation-result-3171233-1302826392/solver-3171233-1302826392 -C 2400 -W 1300 -M 7680 HOME/RestartSAT -rfirst=1 -var-decay=0.75 HOME/instance-3171233-1302826392.cnf 

running on 2 cores: 5,7

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: 1.90 2.71 3.41 5/189 9860
/proc/meminfo: memFree=16664656/32950928 swapFree=67111528/67111528
[pid=9860] ppid=9858 vsize=14760 CPUtime=0 cores=5,7
/proc/9860/stat : 9860 (RestartSAT) R 9858 9860 8841 0 -1 4202496 390 0 0 0 0 0 0 0 25 0 1 0 394239035 15114240 320 33554432000 4194304 4291949 140734135551680 18446744073709551615 4255638 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/9860/statm: 3690 320 248 24 0 324 0

[startup+0.0147681 s]
/proc/loadavg: 1.90 2.71 3.41 5/189 9860
/proc/meminfo: memFree=16664656/32950928 swapFree=67111528/67111528
[pid=9860] ppid=9858 vsize=14944 CPUtime=0.01 cores=5,7
/proc/9860/stat : 9860 (RestartSAT) R 9858 9860 8841 0 -1 4202496 420 0 0 0 1 0 0 0 25 0 1 0 394239035 15302656 348 33554432000 4194304 4291949 140734135551680 18446744073709551615 4255662 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/9860/statm: 3736 348 248 24 0 370 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 14944

[startup+0.100753 s]
/proc/loadavg: 1.90 2.71 3.41 5/189 9860
/proc/meminfo: memFree=16664656/32950928 swapFree=67111528/67111528
[pid=9860] ppid=9858 vsize=15148 CPUtime=0.09 cores=5,7
/proc/9860/stat : 9860 (RestartSAT) R 9858 9860 8841 0 -1 4202496 445 0 0 0 9 0 0 0 25 0 1 0 394239035 15511552 372 33554432000 4194304 4291949 140734135551680 18446744073709551615 4262993 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/9860/statm: 3787 372 249 24 0 421 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15148

[startup+0.300718 s]
/proc/loadavg: 1.90 2.71 3.41 5/189 9860
/proc/meminfo: memFree=16664656/32950928 swapFree=67111528/67111528
[pid=9860] ppid=9858 vsize=15148 CPUtime=0.29 cores=5,7
/proc/9860/stat : 9860 (RestartSAT) R 9858 9860 8841 0 -1 4202496 473 0 0 0 29 0 0 0 25 0 1 0 394239035 15511552 398 33554432000 4194304 4291949 140734135551680 18446744073709551615 4255840 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/9860/statm: 3787 398 249 24 0 421 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15148

[startup+0.700647 s]
/proc/loadavg: 1.90 2.71 3.41 5/189 9860
/proc/meminfo: memFree=16664656/32950928 swapFree=67111528/67111528
[pid=9860] ppid=9858 vsize=15396 CPUtime=0.69 cores=5,7
/proc/9860/stat : 9860 (RestartSAT) R 9858 9860 8841 0 -1 4202496 495 0 0 0 69 0 0 0 25 0 1 0 394239035 15765504 418 33554432000 4194304 4291949 140734135551680 18446744073709551615 4255744 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/9860/statm: 3849 418 249 24 0 483 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15396

[startup+1.50051 s]
/proc/loadavg: 1.90 2.71 3.41 5/190 9861
/proc/meminfo: memFree=16663540/32950928 swapFree=67111528/67111528
[pid=9860] ppid=9858 vsize=15396 CPUtime=1.49 cores=5,7
/proc/9860/stat : 9860 (RestartSAT) R 9858 9860 8841 0 -1 4202496 529 0 0 0 149 0 0 0 25 0 1 0 394239035 15765504 450 33554432000 4194304 4291949 140734135551680 18446744073709551615 4256164 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/9860/statm: 3849 450 249 24 0 483 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 15396

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

[startup+2.30036 s]
/proc/loadavg: 1.90 2.71 3.41 5/190 9861
/proc/meminfo: memFree=16662184/32950928 swapFree=67111528/67111528
[pid=9860] ppid=9858 vsize=15556 CPUtime=2.29 cores=5,7
/proc/9860/stat : 9860 (RestartSAT) R 9858 9860 8841 0 -1 4202496 578 0 0 0 229 0 0 0 25 0 1 0 394239035 15929344 496 33554432000 4194304 4291949 140734135551680 18446744073709551615 4255843 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/9860/statm: 3889 496 249 24 0 523 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 15556

[startup+2.70029 s]
/proc/loadavg: 1.90 2.71 3.41 5/190 9861
/proc/meminfo: memFree=16662184/32950928 swapFree=67111528/67111528
[pid=9860] ppid=9858 vsize=15556 CPUtime=2.69 cores=5,7
/proc/9860/stat : 9860 (RestartSAT) R 9858 9860 8841 0 -1 4202496 581 0 0 0 269 0 0 0 25 0 1 0 394239035 15929344 499 33554432000 4194304 4291949 140734135551680 18446744073709551615 4255574 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/9860/statm: 3889 499 249 24 0 523 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 15556

Child status: 20
Real time (s): 2.74098
CPU time (s): 2.73858
CPU user time (s): 2.73858
CPU system time (s): 0
CPU usage (%): 99.9125
Max. virtual memory (cumulated for all children) (KiB): 15556

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.73858
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= 586
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= 4
involuntary context switches= 37

runsolver used 0.003999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node123 at 2011-04-15 02:13:12
IDJOB=3171233
IDBENCH=83051
IDSOLVER=1581
FILE ID=node123/3171233-1302826392
RUNJOBID= node123-1302826389-9794
PBS_JOBID= 13006671
Free space on /tmp= 71104 MiB

SOLVER NAME= RestartSAT A75
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v50-c1065-S1139883571-082.UNKNOWN.cnf
COMMAND LINE= HOME/RestartSAT -rfirst=1 -var-decay=0.75 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3171233-1302826392/watcher-3171233-1302826392 -o /tmp/evaluation-result-3171233-1302826392/solver-3171233-1302826392 -C 2400 -W 1300 -M 7680  HOME/RestartSAT -rfirst=1 -var-decay=0.75 HOME/instance-3171233-1302826392.cnf

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

MD5SUM BENCH= 45cb1bf5c66e11f0109abc39c0f43234
RANDOM SEED=1238648235

node123.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		: 2666.838
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	: 5333.67
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		: 2666.838
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	: 5226.15
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		: 2666.838
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		: 2666.838
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		: 2666.838
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		: 2666.838
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	: 5332.80
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		: 2666.838
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	: 5332.74
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		: 2666.838
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:     32950928 kB
MemFree:      16664812 kB
Buffers:        642316 kB
Cached:       15205364 kB
SwapCached:          0 kB
Active:        4550756 kB
Inactive:     11370148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      16664812 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            2532 kB
Writeback:           0 kB
AnonPages:       73180 kB
Mapped:          15448 kB
Slab:           302008 kB
PageTables:       4968 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   261496 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= 71104 MiB
End job on node123 at 2011-04-15 02:13:15