Trace number 3171229

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 6.00609 6.00685

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v50-c1065-S1054153452-040.UNKNOWN.cnf
MD5SUM3e6f4baa098d5b86b4caa2cbed949b79
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.165974
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 

6.00/6.00	c WARNING: for repeatability, setting FPU to use double precision
6.00/6.00	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-3171229-1302826389/watcher-3171229-1302826389 -o /tmp/evaluation-result-3171229-1302826389/solver-3171229-1302826389 -C 2400 -W 1300 -M 7680 HOME/RestartSAT -rfirst=1 -var-decay=0.75 HOME/instance-3171229-1302826389.cnf 

running on 2 cores: 0,2

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: 1.71 2.69 3.40 1/174 9803
/proc/meminfo: memFree=16675372/32950928 swapFree=67111528/67111528
[pid=9803] ppid=9801 vsize=14896 CPUtime=0 cores=0,2
/proc/9803/stat : 9803 (RestartSAT) R 9801 9803 8841 0 -1 4202496 392 0 0 0 0 0 0 0 22 0 1 0 394238676 15253504 323 33554432000 4194304 4291949 140733247158160 18446744073709551615 4255673 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/9803/statm: 3724 323 248 24 0 358 0

[startup+0.0286259 s]
/proc/loadavg: 1.71 2.69 3.40 1/174 9803
/proc/meminfo: memFree=16675372/32950928 swapFree=67111528/67111528
[pid=9803] ppid=9801 vsize=15060 CPUtime=0.02 cores=0,2
/proc/9803/stat : 9803 (RestartSAT) R 9801 9803 8841 0 -1 4202496 434 0 0 0 2 0 0 0 22 0 1 0 394238676 15421440 361 33554432000 4194304 4291949 140733247158160 18446744073709551615 4262537 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/9803/statm: 3765 361 249 24 0 399 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 15060

[startup+0.100557 s]
/proc/loadavg: 1.71 2.69 3.40 1/174 9803
/proc/meminfo: memFree=16675372/32950928 swapFree=67111528/67111528
[pid=9803] ppid=9801 vsize=15060 CPUtime=0.09 cores=0,2
/proc/9803/stat : 9803 (RestartSAT) R 9801 9803 8841 0 -1 4202496 440 0 0 0 9 0 0 0 22 0 1 0 394238676 15421440 367 33554432000 4194304 4291949 140733247158160 18446744073709551615 4255673 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/9803/statm: 3765 367 249 24 0 399 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15060

[startup+0.300521 s]
/proc/loadavg: 1.71 2.69 3.40 1/174 9803
/proc/meminfo: memFree=16675372/32950928 swapFree=67111528/67111528
[pid=9803] ppid=9801 vsize=15060 CPUtime=0.29 cores=0,2
/proc/9803/stat : 9803 (RestartSAT) R 9801 9803 8841 0 -1 4202496 464 0 0 0 29 0 0 0 23 0 1 0 394238676 15421440 391 33554432000 4194304 4291949 140733247158160 18446744073709551615 4255656 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/9803/statm: 3765 391 249 24 0 399 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15060

[startup+0.70045 s]
/proc/loadavg: 1.71 2.69 3.40 1/174 9803
/proc/meminfo: memFree=16675372/32950928 swapFree=67111528/67111528
[pid=9803] ppid=9801 vsize=15224 CPUtime=0.69 cores=0,2
/proc/9803/stat : 9803 (RestartSAT) R 9801 9803 8841 0 -1 4202496 504 0 0 0 69 0 0 0 25 0 1 0 394238676 15589376 428 33554432000 4194304 4291949 140733247158160 18446744073709551615 4255624 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/9803/statm: 3806 428 249 24 0 440 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15224

[startup+1.50031 s]
/proc/loadavg: 1.71 2.69 3.40 5/190 9834
/proc/meminfo: memFree=16667060/32950928 swapFree=67111528/67111528
[pid=9803] ppid=9801 vsize=15460 CPUtime=1.49 cores=0,2
/proc/9803/stat : 9803 (RestartSAT) R 9801 9803 8841 0 -1 4202496 558 0 0 0 149 0 0 0 25 0 1 0 394238676 15831040 477 33554432000 4194304 4291949 140733247158160 18446744073709551615 248093156624 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/9803/statm: 3865 477 249 24 0 499 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 15460

[startup+3.10103 s]
/proc/loadavg: 1.90 2.71 3.41 5/190 9834
/proc/meminfo: memFree=16664952/32950928 swapFree=67111528/67111528
[pid=9803] ppid=9801 vsize=15628 CPUtime=3.1 cores=0,2
/proc/9803/stat : 9803 (RestartSAT) R 9801 9803 8841 0 -1 4202496 603 0 0 0 310 0 0 0 25 0 1 0 394238676 16003072 519 33554432000 4194304 4291949 140733247158160 18446744073709551615 4256186 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/9803/statm: 3907 519 249 24 0 541 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 15628

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

[startup+4.70074 s]
/proc/loadavg: 1.90 2.71 3.41 5/190 9861
/proc/meminfo: memFree=16663664/32950928 swapFree=67111528/67111528
[pid=9803] ppid=9801 vsize=15628 CPUtime=4.7 cores=0,2
/proc/9803/stat : 9803 (RestartSAT) R 9801 9803 8841 0 -1 4202496 611 0 0 0 470 0 0 0 25 0 1 0 394238676 16003072 526 33554432000 4194304 4291949 140733247158160 18446744073709551615 4255913 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/9803/statm: 3907 526 249 24 0 541 0
Current children cumulated CPU time (s) 4.7
Current children cumulated vsize (KiB) 15628

[startup+5.50666 s]
/proc/loadavg: 1.90 2.71 3.41 5/190 9861
/proc/meminfo: memFree=16662556/32950928 swapFree=67111528/67111528
[pid=9803] ppid=9801 vsize=15952 CPUtime=5.5 cores=0,2
/proc/9803/stat : 9803 (RestartSAT) R 9801 9803 8841 0 -1 4202496 615 0 0 0 550 0 0 0 25 0 1 0 394238676 16334848 530 33554432000 4194304 4291949 140733247158160 18446744073709551615 4255698 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/9803/statm: 3988 530 249 24 0 622 0
Current children cumulated CPU time (s) 5.5
Current children cumulated vsize (KiB) 15952

[startup+5.90063 s]
/proc/loadavg: 1.90 2.71 3.41 5/190 9861
/proc/meminfo: memFree=16662556/32950928 swapFree=67111528/67111528
[pid=9803] ppid=9801 vsize=15952 CPUtime=5.9 cores=0,2
/proc/9803/stat : 9803 (RestartSAT) R 9801 9803 8841 0 -1 4202496 649 0 0 0 590 0 0 0 25 0 1 0 394238676 16334848 561 33554432000 4194304 4291949 140733247158160 18446744073709551615 4255748 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/9803/statm: 3988 561 249 24 0 622 0
Current children cumulated CPU time (s) 5.9
Current children cumulated vsize (KiB) 15952

[startup+6.00058 s]
/proc/loadavg: 1.90 2.71 3.41 5/190 9861
/proc/meminfo: memFree=16662556/32950928 swapFree=67111528/67111528
[pid=9803] ppid=9801 vsize=15952 CPUtime=6 cores=0,2
/proc/9803/stat : 9803 (RestartSAT) R 9801 9803 8841 0 -1 4202496 649 0 0 0 600 0 0 0 25 0 1 0 394238676 16334848 561 33554432000 4194304 4291949 140733247158160 18446744073709551615 4256127 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/9803/statm: 3988 561 249 24 0 622 0
Current children cumulated CPU time (s) 6
Current children cumulated vsize (KiB) 15952

Child status: 20
Real time (s): 6.00685
CPU time (s): 6.00609
CPU user time (s): 6.00509
CPU system time (s): 0.000999
CPU usage (%): 99.9873
Max. virtual memory (cumulated for all children) (KiB): 15952

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.00509
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= 654
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= 8
involuntary context switches= 17

runsolver used 0.012998 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node123 at 2011-04-15 02:13:09
IDJOB=3171229
IDBENCH=83047
IDSOLVER=1581
FILE ID=node123/3171229-1302826389
RUNJOBID= node123-1302826389-9791
PBS_JOBID= 13006671
Free space on /tmp= 71108 MiB

SOLVER NAME= RestartSAT A75
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v50-c1065-S1054153452-040.UNKNOWN.cnf
COMMAND LINE= HOME/RestartSAT -rfirst=1 -var-decay=0.75 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3171229-1302826389/watcher-3171229-1302826389 -o /tmp/evaluation-result-3171229-1302826389/solver-3171229-1302826389 -C 2400 -W 1300 -M 7680  HOME/RestartSAT -rfirst=1 -var-decay=0.75 HOME/instance-3171229-1302826389.cnf

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

MD5SUM BENCH= 3e6f4baa098d5b86b4caa2cbed949b79
RANDOM SEED=2118764479

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:      16675528 kB
Buffers:        642272 kB
Cached:       15203348 kB
SwapCached:          0 kB
Active:        4539116 kB
Inactive:     11370116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      16675528 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             548 kB
Writeback:           0 kB
AnonPages:       63180 kB
Mapped:          14496 kB
Slab:           301536 kB
PageTables:       4696 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   192336 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