Trace number 4089455

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
cdcl-cuttingplanes DEC 2016-05-01UNSAT 0.335948 0.339684

General information on the benchmark

Namenormalized-PB16/DEC-SMALLINT-LIN/pb16-16-elffers/
vertexcover-instances/normalized-vertexcover-grid8x15-hard.opb
MD5SUM8962e330cbd730b44c14f6c229952c4e
Bench CategoryDEC-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.030994
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables120
Total number of constraints241
Number of constraints which are clauses240
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint120
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 63
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 183
Number of bits of the biggest sum of numbers8
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c * #variable= 120 #constraint= 241
0.00/0.05	c #Conflicts:       1000 | #Learnt:        999 | 0.000
0.00/0.05	c total clause space: 4.25031MB
0.00/0.05	c total #watches: 12610
0.09/0.14	c total #propagations: 14001 / total #impl: 147730 (eff. 0.095)
0.09/0.14	c #Conflicts:       2000 | #Learnt:       1999 | 0.000
0.09/0.14	c total clause space: 4.25031MB
0.09/0.14	c total #watches: 20063
0.19/0.21	c total #propagations: 31418 / total #impl: 349946 (eff. 0.090)
0.19/0.21	c GARBAGE COLLECT
0.19/0.21	c #Conflicts:       3000 | #Learnt:       2002 | 0.000
0.19/0.21	c total clause space: 4.25031MB
0.19/0.21	c total #watches: 18644
0.29/0.33	c total #propagations: 48754 / total #impl: 637175 (eff. 0.077)
0.29/0.33	c #Conflicts:       4000 | #Learnt:       3000 | 0.000
0.29/0.33	c total clause space: 4.25031MB
0.29/0.33	c total #watches: 23403
0.29/0.33	c total #propagations: 64592 / total #impl: 876477 (eff. 0.074)
0.29/0.33	c UNSATISFIABLE 1
0.29/0.33	c CPU time              : 0.32695 s
0.29/0.33	d decisions 4027
0.29/0.33	d conflicts 5065
0.29/0.33	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver Copyright (C) 2010-2013 Olivier ROUSSEL

This is runsolver version 3.3.7 (svn: 2553)

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-4089455-1466015503/watcher-4089455-1466015503 -o /tmp/evaluation-result-4089455-1466015503/solver-4089455-1466015503 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node104-1466011246-5727 --watchdog 1960 --input HOME/instance-4089455-1466015503.opb ./cdcl-cuttingplanes-release 

pid=8638
running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1900 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: 2.09 2.07 2.06 3/173 8641
/proc/meminfo: memFree=31046328/32872528 swapFree=446836/479540
[pid=8641] ppid=8638 vsize=29104 CPUtime=0 cores=0,2,4,6
/proc/8641/stat : 8641 (cdcl-cuttingpla) R 8638 8641 5711 0 -1 4202496 233 0 0 0 0 0 0 0 20 0 1 0 3600431 29802496 3180 33554432000 4194304 6199737 140735017006288 140735821553672 4202467 0 0 4096 0 0 0 0 17 0 0 0 0 0 0
/proc/8641/statm: 7276 3180 93 490 0 6777 0

[startup+0.100113 s]
/proc/loadavg: 2.09 2.07 2.06 3/173 8641
/proc/meminfo: memFree=31046328/32872528 swapFree=446836/479540
[pid=8641] ppid=8638 vsize=33992 CPUtime=0.09 cores=0,2,4,6
/proc/8641/stat : 8641 (cdcl-cuttingpla) R 8638 8641 5711 0 -1 4202496 959 0 0 0 9 0 0 0 20 0 1 0 3600431 34807808 7254 33554432000 4194304 6199737 140735017006288 140735821553672 4213314 0 0 4096 8388610 0 0 0 17 0 0 0 0 0 0
/proc/8641/statm: 8498 7254 155 490 0 7999 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 33992

[startup+0.200288 s]
/proc/loadavg: 2.09 2.07 2.06 3/173 8641
/proc/meminfo: memFree=31046328/32872528 swapFree=446836/479540
[pid=8641] ppid=8638 vsize=33992 CPUtime=0.19 cores=0,2,4,6
/proc/8641/stat : 8641 (cdcl-cuttingpla) R 8638 8641 5711 0 -1 4202496 984 0 0 0 19 0 0 0 20 0 1 0 3600431 34807808 7279 33554432000 4194304 6199737 140735017006288 140735821553672 4213389 0 0 4096 8388610 0 0 0 17 0 0 0 0 0 0
/proc/8641/statm: 8498 7279 161 490 0 7999 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 33992

[startup+0.300212 s]
/proc/loadavg: 2.09 2.07 2.06 3/173 8641
/proc/meminfo: memFree=31046328/32872528 swapFree=446836/479540
[pid=8641] ppid=8638 vsize=34280 CPUtime=0.29 cores=0,2,4,6
/proc/8641/stat : 8641 (cdcl-cuttingpla) R 8638 8641 5711 0 -1 4202496 1029 0 0 0 29 0 0 0 20 0 1 0 3600431 35102720 7324 33554432000 4194304 6199737 140735017006288 140735821553672 4234832 0 0 4096 8388610 0 0 0 17 0 0 0 0 0 0
/proc/8641/statm: 8570 7324 161 490 0 8071 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 34280

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 8641 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.300212 s]
/proc/loadavg: 2.09 2.07 2.06 3/173 8641
/proc/meminfo: memFree=31046328/32872528 swapFree=446836/479540
[pid=8641] ppid=8638 vsize=34280 CPUtime=0.29 cores=0,2,4,6
/proc/8641/stat : 8641 (cdcl-cuttingpla) R 8638 8641 5711 0 -1 4202496 1029 0 0 0 29 0 0 0 20 0 1 0 3600431 35102720 7324 33554432000 4194304 6199737 140735017006288 140735821553672 4234832 0 0 4096 8388610 0 0 0 17 0 0 0 0 0 0
/proc/8641/statm: 8570 7324 161 490 0 8071 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 34280

Child status: 20
Real time (s): 0.339684
CPU time (s): 0.335948
CPU user time (s): 0.331949
CPU system time (s): 0.003999
CPU usage (%): 98.9002
Max. virtual memory (cumulated for all children) (KiB): 34280

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.331949
system time used= 0.003999
maximum resident set size= 29328
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1038
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= 3
involuntary context switches= 2

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node104 at 2016-06-15 20:31:43
IDJOB=4089455
IDBENCH=107408
IDSOLVER=2548
FILE ID=node104/4089455-1466015503
RUNJOBID= node104-1466011246-5727
PBS_JOBID= 19902812
Free space on /tmp= 71732 MiB

SOLVER NAME= cdcl-cuttingplanes DEC 2016-05-01
BENCH NAME= PB16/normalized-PB16/DEC-SMALLINT-LIN/pb16-16-elffers/vertexcover-instances/normalized-vertexcover-grid8x15-hard.opb
COMMAND LINE= ./cdcl-cuttingplanes-release
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4089455-1466015503/watcher-4089455-1466015503 -o /tmp/evaluation-result-4089455-1466015503/solver-4089455-1466015503 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node104-1466011246-5727 --watchdog 1960 --input HOME/instance-4089455-1466015503.opb ./cdcl-cuttingplanes-release

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 8962e330cbd730b44c14f6c229952c4e
RANDOM SEED=2111785647

node104.alineos.net Linux 2.6.32-71.29.1.el6.x86_64 #1 SMP Mon Jun 27 19:49:27 BST 2011

/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		: 2667.035
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5334.07
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.035
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
initial apicid	: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.035
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.035
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
initial apicid	: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.035
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.035
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
initial apicid	: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.54
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.035
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.035
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
initial apicid	: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32872528 kB
MemFree:        31046600 kB
Buffers:           11360 kB
Cached:            34536 kB
SwapCached:         1256 kB
Active:           624832 kB
Inactive:          26068 kB
Active(anon):     605320 kB
Inactive(anon):     1832 kB
Active(file):      19512 kB
Inactive(file):    24236 kB
Unevictable:      479540 kB
Mlocked:          446836 kB
SwapTotal:      67108856 kB
SwapFree:       67099948 kB
Dirty:              2360 kB
Writeback:             0 kB
AnonPages:       1083464 kB
Mapped:             7172 kB
Shmem:                 0 kB
Slab:             565664 kB
SReclaimable:       9516 kB
SUnreclaim:       556148 kB
KernelStack:        1408 kB
PageTables:         6208 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545120 kB
Committed_AS:    1367524 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346412 kB
VmallocChunk:   34341988032 kB
HardwareCorrupted:     0 kB
AnonHugePages:    620544 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        7552 kB
DirectMap2M:    33538048 kB

Free space on /tmp at the end= 71732 MiB
End job on node104 at 2016-06-15 20:31:44