Trace number 4101352

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 linear search 2016-05-01OPT164393 0.249961 0.25089

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/
MIPLIB/miplib/normalized-reduced-mps-v2-20-10-pipex.opb
MD5SUMed5b5ce3af44efa2d285a6206b4187fd
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark164393
Best CPU time to get the best result obtained on this benchmark0.249961
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 164393
Optimality of the best value was proved YES
Number of variables48
Total number of constraints25
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)16
Number of constraints which are nor clauses,nor cardinality constraints9
Minimum length of a constraint3
Maximum length of a constraint16
Number of terms in the objective function 48
Biggest coefficient in the objective function 22495
Number of bits for the biggest coefficient in the objective function 15
Sum of the numbers in the objective function 524314
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 22495
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 524314
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
0.00/0.00	c * #variable= 48 #constraint= 25
0.00/0.03	c #Conflicts:       1000 | #Learnt:       1006 | 0.001
0.00/0.03	c total clause space: 4.25031MB
0.00/0.03	c total #watches: 4672
0.00/0.08	c total #propagations: 9254 / total #impl: 143076 (eff. 0.065)
0.00/0.08	c #Conflicts:       2000 | #Learnt:       2007 | 0.001
0.00/0.08	c total clause space: 4.25031MB
0.00/0.08	c total #watches: 8346
0.09/0.13	c total #propagations: 17992 / total #impl: 456262 (eff. 0.039)
0.09/0.13	c GC COLLECT
0.09/0.13	c #Conflicts:       3000 | #Learnt:       2006 | 0.001
0.09/0.13	c total clause space: 4.25031MB
0.09/0.13	c total #watches: 8450
0.09/0.18	c total #propagations: 27384 / total #impl: 777217 (eff. 0.035)
0.09/0.18	c #Conflicts:       4000 | #Learnt:       3006 | 0.002
0.09/0.18	c total clause space: 4.25031MB
0.09/0.18	c total #watches: 12212
0.19/0.25	c total #propagations: 38251 / total #impl: 1031102 (eff. 0.037)
0.19/0.25	c GC COLLECT
0.19/0.25	o 164393
0.19/0.25	s OPTIMUM FOUND
0.19/0.25	v x1 x2 -x3 -x4 -x5 -x6 -x7 -x8 -x9 -x10 x11 -x12 x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 x23 x24 -x25 -x26 -x27 x28 -x29 x30 x31 x32 -x33 -x34 x35 x36 x37 x38 -x39 -x40 x41 x42 -x43 -x44 -x45 -x46 -x47 -x48
0.19/0.25	c CPU time              : 0.241964 s

Verifier Data 

OK	164393

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-4101352-1466249751/watcher-4101352-1466249751 -o /tmp/evaluation-result-4101352-1466249751/solver-4101352-1466249751 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node123-1466240371-6522 --watchdog 1960 --input HOME/instance-4101352-1466249751.opb ./cdcl-cuttingplanes-opt-linearsearch-release 

pid=7537
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: 2.22 2.19 2.21 3/176 7540
/proc/meminfo: memFree=29751676/32872528 swapFree=17888/1798212
[pid=7540] ppid=7537 vsize=29112 CPUtime=0 cores=0,2,4,6
/proc/7540/stat : 7540 (cdcl-cuttingpla) R 7537 7540 6506 0 -1 4202496 278 0 0 0 0 0 0 0 20 0 1 0 27022256 29810688 5269 33554432000 4194304 6201397 140733729010112 140736799379560 4211056 0 0 4096 8388610 0 0 0 17 2 0 0 0 0 0
/proc/7540/statm: 7278 5269 130 491 0 6777 0

[startup+0.100163 s]
/proc/loadavg: 2.22 2.19 2.21 3/176 7540
/proc/meminfo: memFree=29751676/32872528 swapFree=17888/1798212
[pid=7540] ppid=7537 vsize=33736 CPUtime=0.09 cores=0,2,4,6
/proc/7540/stat : 7540 (cdcl-cuttingpla) R 7537 7540 6506 0 -1 4202496 381 0 0 0 9 0 0 0 20 0 1 0 27022256 34545664 6902 33554432000 4194304 6201397 140733729010112 140736799379560 4213512 0 0 4096 8388610 0 0 0 17 2 0 0 0 0 0
/proc/7540/statm: 8434 6902 158 491 0 7933 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 33736

[startup+0.200385 s]
/proc/loadavg: 2.22 2.19 2.21 3/176 7540
/proc/meminfo: memFree=29751676/32872528 swapFree=17888/1798212
[pid=7540] ppid=7537 vsize=33872 CPUtime=0.19 cores=0,2,4,6
/proc/7540/stat : 7540 (cdcl-cuttingpla) R 7537 7540 6506 0 -1 4202496 425 0 0 0 19 0 0 0 20 0 1 0 27022256 34684928 6946 33554432000 4194304 6201397 140733729010112 140733729009240 4218803 0 0 4096 8388610 0 0 0 17 2 0 0 0 0 0
/proc/7540/statm: 8468 6946 164 491 0 7967 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 33872

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 7540 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

Child status: 30
Real time (s): 0.25089
CPU time (s): 0.249961
CPU user time (s): 0.244962
CPU system time (s): 0.004999
CPU usage (%): 99.6297
Max. virtual memory (cumulated for all children) (KiB): 33872

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.244962
system time used= 0.004999
maximum resident set size= 28088
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 502
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 0.006998 second system time

The end

Launcher Data 

Begin job on node123 at 2016-06-18 13:35:51
IDJOB=4101352
IDBENCH=1733
IDSOLVER=2550
FILE ID=node123/4101352-1466249751
RUNJOBID= node123-1466240371-6522
PBS_JOBID= 19918188
Free space on /tmp= 71632 MiB

SOLVER NAME= cdcl-cuttingplanes OPT linear search 2016-05-01
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/miplib/normalized-reduced-mps-v2-20-10-pipex.opb
COMMAND LINE= ./cdcl-cuttingplanes-opt-linearsearch-release
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4101352-1466249751/watcher-4101352-1466249751 -o /tmp/evaluation-result-4101352-1466249751/solver-4101352-1466249751 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node123-1466240371-6522 --watchdog 1960 --input HOME/instance-4101352-1466249751.opb ./cdcl-cuttingplanes-opt-linearsearch-release

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

MD5SUM BENCH= ed5b5ce3af44efa2d285a6206b4187fd
RANDOM SEED=1819805085

node123.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		: 2666.791
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	: 5333.58
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		: 2666.791
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		: 2666.791
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		: 2666.791
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	: 5332.57
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		: 2666.791
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	: 5332.56
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		: 2666.791
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	: 5332.56
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		: 2666.791
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		: 2666.791
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:        29752304 kB
Buffers:           30772 kB
Cached:            76512 kB
SwapCached:         1600 kB
Active:           498304 kB
Inactive:          89820 kB
Active(anon):     479900 kB
Inactive(anon):     3072 kB
Active(file):      18404 kB
Inactive(file):    86748 kB
Unevictable:     1798212 kB
Mlocked:           17888 kB
SwapTotal:      67108856 kB
SwapFree:       67099316 kB
Dirty:              2360 kB
Writeback:             0 kB
AnonPages:       2449856 kB
Mapped:             7668 kB
Shmem:                 0 kB
Slab:             599696 kB
SReclaimable:      43940 kB
SUnreclaim:       555756 kB
KernelStack:        1472 kB
PageTables:         8676 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545120 kB
Committed_AS:    2447916 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346412 kB
VmallocChunk:   34341988032 kB
HardwareCorrupted:     0 kB
AnonHugePages:   2269184 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= 71628 MiB
End job on node123 at 2016-06-18 13:35:52