Trace number 4101055

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 NameAnswerobjective functionCPU timeWall clock time
cdcl-cuttingplanes OPT binary search 2016-05-01UNSAT 0.482926 0.48393

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-reduced-mps-v2-20-10-degen2.opb
MD5SUMef301ecece8b2033bfa1fe9b39eee48a
Bench CategoryOPT-SMALLINT (optimisation, small integers)
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 benchmark0.390939
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables16020
Total number of constraints444
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints444
Minimum length of a constraint60
Maximum length of a constraint2550
Number of terms in the objective function 14100
Biggest coefficient in the objective function 3337
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 535636
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 131073
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 535636
Number of bits of the biggest sum of numbers20
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 OPTIONS:
0.00/0.00	c - Resolve (`-resolve-always' or `-resolve-skip'): -resolve-skip
0.00/0.05	c * #variable= 16020 #constraint= 444
0.08/0.17	c * #variable= 16020 #constraint= 444
0.39/0.48	s UNSATISFIABLE
0.39/0.48	c CPU time              : 0.46293 s

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-4101055-1466249158/watcher-4101055-1466249158 -o /tmp/evaluation-result-4101055-1466249158/solver-4101055-1466249158 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node137-1466229299-21095 --watchdog 1960 --input HOME/instance-4101055-1466249158.opb ./cdcl-cuttingplanes-opt-binarysearch-release 

pid=23630
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: 2.27 2.23 2.19 3/176 23633
/proc/meminfo: memFree=30001272/32872528 swapFree=1499884/1696108
[pid=23633] ppid=23630 vsize=55976 CPUtime=0 cores=0,2,4,6
/proc/23633/stat : 23633 (cdcl-cuttingpla) R 23630 23633 21079 0 -1 4202496 257 0 0 0 0 0 0 0 20 0 1 0 26961569 57319424 7804 33554432000 4194304 6211289 140736565590512 140734966933288 4206544 0 0 4096 0 0 0 0 17 2 0 0 0 0 0
/proc/23633/statm: 13994 7804 98 493 0 13491 0

[startup+0.100159 s]
/proc/loadavg: 2.27 2.23 2.19 3/176 23633
/proc/meminfo: memFree=30001272/32872528 swapFree=1499884/1696108
[pid=23633] ppid=23630 vsize=65616 CPUtime=0.08 cores=0,2,4,6
/proc/23633/stat : 23633 (cdcl-cuttingpla) R 23630 23633 21079 0 -1 4202496 2217 0 0 0 8 0 0 0 20 0 1 0 26961569 67190784 13805 33554432000 4194304 6211289 140736565590512 140734966933288 5161098 0 0 4096 8388610 0 0 0 17 2 0 0 0 0 0
/proc/23633/statm: 16404 13805 144 493 0 15901 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 65616

[startup+0.200362 s]
/proc/loadavg: 2.27 2.23 2.19 3/176 23633
/proc/meminfo: memFree=30001272/32872528 swapFree=1499884/1696108
[pid=23633] ppid=23630 vsize=74276 CPUtime=0.18 cores=0,2,4,6
/proc/23633/stat : 23633 (cdcl-cuttingpla) R 23630 23633 21079 0 -1 4202496 3320 0 0 0 18 0 0 0 20 0 1 0 26961569 76058624 15601 33554432000 4194304 6211289 140736565590512 140734966933288 5161098 0 0 4096 8388610 0 0 0 17 2 0 0 0 0 0
/proc/23633/statm: 18569 15602 144 493 0 18066 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 74276

[startup+0.300339 s]
/proc/loadavg: 2.27 2.23 2.19 3/176 23633
/proc/meminfo: memFree=30001272/32872528 swapFree=1499884/1696108
[pid=23633] ppid=23630 vsize=77688 CPUtime=0.29 cores=0,2,4,6
/proc/23633/stat : 23633 (cdcl-cuttingpla) R 23630 23633 21079 0 -1 4202496 3771 0 0 0 28 1 0 0 20 0 1 0 26961569 79552512 16052 33554432000 4194304 6211289 140736565590512 140734966933288 4209376 0 0 4096 8388610 0 0 0 17 2 0 0 0 0 0
/proc/23633/statm: 19422 16052 149 493 0 18919 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 77688

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 23633 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.400264 s]
/proc/loadavg: 2.27 2.23 2.19 3/176 23633
/proc/meminfo: memFree=30001272/32872528 swapFree=1499884/1696108
[pid=23633] ppid=23630 vsize=77688 CPUtime=0.39 cores=0,2,4,6
/proc/23633/stat : 23633 (cdcl-cuttingpla) R 23630 23633 21079 0 -1 4202496 3792 0 0 0 38 1 0 0 20 0 1 0 26961569 79552512 16070 33554432000 4194304 6211289 140736565590512 140734966933288 4209396 0 0 4096 8388610 0 0 0 17 2 0 0 0 0 0
/proc/23633/statm: 19422 16070 150 493 0 18919 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 77688

Child status: 20
Real time (s): 0.48393
CPU time (s): 0.482926
CPU user time (s): 0.469928
CPU system time (s): 0.012998
CPU usage (%): 99.7925
Max. virtual memory (cumulated for all children) (KiB): 77688

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.469928
system time used= 0.012998
maximum resident set size= 64636
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3887
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= 1

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node137 at 2016-06-18 13:25:58
IDJOB=4101055
IDBENCH=1694
IDSOLVER=2549
FILE ID=node137/4101055-1466249158
RUNJOBID= node137-1466229299-21095
PBS_JOBID= 19918171
Free space on /tmp= 71700 MiB

SOLVER NAME= cdcl-cuttingplanes OPT binary search 2016-05-01
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-degen2.opb
COMMAND LINE= ./cdcl-cuttingplanes-opt-binarysearch-release
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4101055-1466249158/watcher-4101055-1466249158 -o /tmp/evaluation-result-4101055-1466249158/solver-4101055-1466249158 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node137-1466229299-21095 --watchdog 1960 --input HOME/instance-4101055-1466249158.opb ./cdcl-cuttingplanes-opt-binarysearch-release

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

MD5SUM BENCH= ef301ecece8b2033bfa1fe9b39eee48a
RANDOM SEED=418137524

node137.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		: 2666.486
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	: 5332.97
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		: 2666.486
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		: 2666.486
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	: 5332.56
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		: 2666.486
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		: 2666.486
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		: 2666.486
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	: 5332.38
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		: 2666.486
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	: 5332.56
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		: 2666.486
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:        30001644 kB
Buffers:          130288 kB
Cached:           191472 kB
SwapCached:         1268 kB
Active:           211980 kB
Inactive:         225048 kB
Active(anon):     116316 kB
Inactive(anon):     1024 kB
Active(file):      95664 kB
Inactive(file):   224024 kB
Unevictable:     1696108 kB
Mlocked:         1499884 kB
SwapTotal:      67108856 kB
SwapFree:       67100004 kB
Dirty:              3504 kB
Writeback:             0 kB
AnonPages:       1810364 kB
Mapped:             7880 kB
Shmem:                 0 kB
Slab:             604796 kB
SReclaimable:      48908 kB
SUnreclaim:       555888 kB
KernelStack:        1472 kB
PageTables:         7768 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545120 kB
Committed_AS:    1946560 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346412 kB
VmallocChunk:   34341988032 kB
HardwareCorrupted:     0 kB
AnonHugePages:    251904 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= 71696 MiB
End job on node137 at 2016-06-18 13:25:59