PB'05 competition: run trace

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 in four parts:

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 provide some useful information on the computer.
SOLVER DATA
This is the output of the solver (stdout and stderr).
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 1200 seconds. 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 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
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.
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.

General information on the benchmark

Name	normalized-opb/mps-v2-20-10/MIPLIB/miplib3/normalized-mps-v2-20-10-vpm2.opb
MD5SUM	766b2fe57cb2084b069363491485612e
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	97
Optimality of the best value was proved	NO
Number of terms in the objective function	168
Biggest coefficient in the objective function	5
Number of bits for the biggest coefficient in the objective function	3
Sum of the numbers in the objective function	504
Number of bits of the sum of numbers in the objective function	9
Biggest number in a constraint	16000000
Number of bits of the biggest number in a constraint	24
Biggest sum of numbers in a constraint	241094849
Number of bits of the biggest sum of numbers	28
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1175.23
Number of variables	2754
Total number of constraints	444
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	444
Minimum length of a constraint	11
Maximum length of a constraint	84

Trace number 13705

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc25 THE 2005-04-20 21:45:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=13953 boxname=wulflinc25 idbench=1074 idsolver=4 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  766b2fe57cb2084b069363491485612e  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-vpm2.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-vpm2.opb
IDLAUNCH: 13953
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.220
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        815328 kB
Buffers:          4536 kB
Cached:         194700 kB
SwapCached:        820 kB
Active:          29868 kB
Inactive:       171432 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        815048 kB
SwapTotal:     2097892 kB
SwapFree:      2096248 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           4988 kB
Slab:            12192 kB
Committed_AS:    63484 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-20 21:45:32 (client local time) WITH STATUS 0 IN 0.435933 SECONDS
stats: 13953 7 0.435933 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
~20@307200([31m0d26[0m) 180@800([31m0d16[0m) 181@1600([31m0d16[0m) 182@3200([31m0d16[0m) 183@6400([31m0d16[0m) 184@12800([31m0d16[0m) 185@25600([31m0d16[0m) 186@51200([31m0d16[0m) 187@102400([31m0d16[0m) 188@204800([31m0d16[0m) 189@409600([31m0d16[0m) 190@819200([31m0d16[0m) 246@1200([31m0d21[0m) 247@2400([31m0d21[0m) 248@4800([31m0d21[0m) 249@9600([31m0d21[0m) 250@19200([31m0d21[0m) 251@38400([31m0d21[0m) 252@76800([31m0d21[0m) 253@153600([31m0d21[0m) 254@307200([31m0d21[0m) 255@614400([31m0d21[0m) 256@1228800([31m0d21[0m) 312@1600([31m0d26[0m) 313@3200([31m0d26[0m) 314@6400([31m0d26[0m) 315@12800([31m0d26[0m) 316@25600([31m0d26[0m) 317@51200([31m0d26[0m) 318@102400([31m0d26[0m) 319@204800([31m0d26[0m) 320@409600([31m0d26[0m) 321@819200([31m0d26[0m) 322@1638400([31m0d26[0m) 378@1200([93mX[0m) 379@2400([93mX[0m) 380@4800([93mX[0m) 381@9600([93mX[0m) 382@19200([93mX[0m) 383@38400([93mX[0m) 384@76800([93mX[0m) 385@153600([93mX[0m) 387@307200([32m1d78[0m) 388@1228800([31m0d26[0m) 444@1200([31m0d33[0m) 445@2400([31m0d33[0m) 446@4800([31m0d33[0m) 447@9600([31m0d33[0m) 448@19200([31m0d33[0m) 449@38400([31m0d33[0m) 450@76800([31m0d33[0m) 451@153600([31m0d33[0m) 452@307200([31m0d33[0m) 453@614400([31m0d33[0m) 454@1228800([31m0d0[0m) 510@600([31m0d39[0m) 511@1200([31m0d39[0m) 512@2400([31m0d39[0m) 513@4800([31m0d39[0m) 514@9600([31m0d39[0m) 515@19200([31m0d39[0m) 516@38400([31m0d39[0m) 517@76800([31m0d39[0m) 518@153600([31m0d39[0m) 519@307200([31m0d39[0m) 520@614400([31m0d39[0m) 576@300([31m0d44[0m) 577@600([31m0d44[0m) 578@1200([31m0d44[0m) 579@2400([31m0d44[0m) 580@4800([31m0d44[0m) 581@9600([31m0d44[0m) 582@19200([31m0d44[0m) 583@38400([31m0d44[0m) 584@76800([31m0d44[0m) 585@153600([31m0d44[0m) 586@307200([31m0d44[0m) 642@1200([93mX[0m) 643@2400([93mX[0m) 644@4800([93mX[0m) 645@9600([93mX[0m) 646@19200([93mX[0m) 647@38400([93mX[0m) 648@76800([93mX[0m) 649@153600([93mX[0m) 651@614400([31m0d78[0m) 652@1228800([31m0d0[0m) 2017@4([93mX[0m) 2018@8([93mX[0m) 2019@16([93mX[0m) 2020@32([93mX[0m) 2021@64([93mX[0m) 2022@128([93mX[0m) 2023@256([93mX[0m) 2024@512([93mX[0m) 2025@1024([93mX[0m) 2026@2048([93mX[0m) 2027@4096([93mX[0m) 2028@8192([93mX[0m) 2029@16384([93mX[0m) 2030@32768([93mX[0m) 2031@65536([93mX[0m) 2032@131072([31m0d78[0m) 2033@262144([31m0d78[0m) 2034@524288([32m1d78[0m) ~2035@4([93mX[0m) ~2036@8([93mX[0m) ~2037@16([93mX[0m) ~2038@32([93mX[0m) ~2039@64([93mX[0m) ~2040@128([93mX[0m) ~2041@256([93mX[0m) ~2042@512([93mX[0m) ~2043@1024([93mX[0m) ~2044@2048([93mX[0m) ~2045@4096([93mX[0m) ~2046@8192([93mX[0m) ~2047@16384([93mX[0m) ~2048@32768([93mX[0m) ~2049@65536([93mX[0m) ~2050@131072([93mX[0m) ~2051@262144([93mX[0m) ~2052@524288([31m0d78[0m) 2125@3([31m0d0[0m) 2126@6([31m0d0[0m) 2127@12([31m0d0[0m) 2128@24([31m0d0[0m) 2129@48([31m0d0[0m) 2130@96([31m0d0[0m) 2131@192([31m0d0[0m) 2132@384([31m0d0[0m) 2133@768([31m0d0[0m) 2134@1536([31m0d0[0m) 2135@3072([31m0d0[0m) 2136@6144([31m0d0[0m) 2137@12288([31m0d0[0m) 2138@24576([32m1d0[0m) 2139@49152([31m0d0[0m) 2140@98304([31m0d0[0m) 2141@196608([32m1d0[0m) 2142@393216([32m1d0[0m) ~2143@3([93mX[0m) ~2144@6([93mX[0m) ~2145@12([93mX[0m) ~2146@24([93mX[0m) ~2147@48([93mX[0m) ~2148@96([93mX[0m) ~2149@192([93mX[0m) ~2150@384([93mX[0m) ~2151@768([93mX[0m) ~2152@1536([93mX[0m) ~2153@3072([93mX[0m) ~2154@6144([93mX[0m) ~2155@12288([93mX[0m) ~2156@24576([93mX[0m) ~2157@49152([93mX[0m) ~2158@98304([93mX[0m) ~2159@196608([93mX[0m) ~2160@393216([93mX[0m) [1445888/3499669/19636302] >= 3371001
galena: solver.cpp:406: int cutting_plane(Solver&, ConstraintDB&, int): Assertion `slack < 0' failed.
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.49 0.81 0.89 2/54 22796
Raw data (stat): 22796 (runsolver) R 22795 28099 28098 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 539793287 1052672 99 4294967295 134512640 135381576 3221224528 3221219776 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+0.439644 s]
Raw data (loadavg): 0.49 0.81 0.89 1/53 22796
Raw data (stat): 22796 (runsolver) R 22795 28099 28098 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 539793287 1052672 99 4294967295 134512640 135381576 3221224528 3221219776 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child ended because it received signal 6 (SIGABRT)
Real time (s): 0.439366
CPU time (s): 0.435933
CPU user time (s): 0.424935
CPU system time (s): 0.010998
CPU usage (%): 99.2187
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####